3 Things to Know about Bitcoin Confirmations (2020 Updated)

Bitcoin Newcomers FAQ - Please read!

Welcome to the /Bitcoin Sticky FAQ

You've probably been hearing a lot about Bitcoin recently and are wondering what's the big deal? Most of your questions should be answered by the resources below but if you have additional questions feel free to ask them in the comments.
It all started with the release of the release of Satoshi Nakamoto's whitepaper however that will probably go over the head of most readers so we recommend the following videos for a good starting point for understanding how bitcoin works and a little about its long term potential:
Some other great resources include Lopp.net, the Princeton crypto series and James D'Angelo's Bitcoin 101 Blackboard series.
Some excellent writing on Bitcoin's value proposition and future can be found at the Satoshi Nakamoto Institute.
Some Bitcoin statistics can be found here and here. Developer resources can be found here. Peer-reviewed research papers can be found here.
Potential upcoming protocol improvements and scaling resources here and here.
The number of times Bitcoin was declared dead by the media can be found here (LOL!)

Key properties of Bitcoin

Where can I buy bitcoins?

Bitcoin.org and BuyBitcoinWorldwide.com are helpful sites for beginners. You can buy or sell any amount of bitcoin (even just a few dollars worth) and there are several easy methods to purchase bitcoin with cash, credit card or bank transfer. Some of the more popular resources are below, also check out the bitcoinity exchange resources for a larger list of options for purchases.
Here is a listing of local ATMs. If you would like your paycheck automatically converted to bitcoin use Bitwage.
Note: Bitcoins are valued at whatever market price people are willing to pay for them in balancing act of supply vs demand. Unlike traditional markets, bitcoin markets operate 24 hours per day, 365 days per year. Preev is a useful site that that shows how much various denominations of bitcoin are worth in different currencies. Alternatively you can just Google "1 bitcoin in (your local currency)".

Securing your bitcoins

With bitcoin you can "Be your own bank" and personally secure your bitcoins OR you can use third party companies aka "Bitcoin banks" which will hold the bitcoins for you.
Note: For increased security, use Two Factor Authentication (2FA) everywhere it is offered, including email!
2FA requires a second confirmation code to access your account making it much harder for thieves to gain access. Google Authenticator and Authy are the two most popular 2FA services, download links are below. Make sure you create backups of your 2FA codes.
Google Auth Authy OTP Auth
Android Android N/A
iOS iOS iOS

Watch out for scams

As mentioned above, Bitcoin is decentralized, which by definition means there is no official website or Twitter handle or spokesperson or CEO. However, all money attracts thieves. This combination unfortunately results in scammers running official sounding names or pretending to be an authority on YouTube or social media. Many scammers throughout the years have claimed to be the inventor of Bitcoin. Websites like bitcoin(dot)com and the btc subreddit are active scams. Almost all altcoins (shitcoins) are marketed heavily with big promises but are really just designed to separate you from your bitcoin. So be careful: any resource, including all linked in this document, may in the future turn evil. Don't trust, verify. Also as they say in our community "Not your keys, not your coins".

Where can I spend bitcoins?

Check out spendabit or bitcoin directory for millions of merchant options. Also you can spend bitcoin anywhere visa is accepted with bitcoin debit cards such as the CashApp card. Some other useful site are listed below.
Store Product
Gyft Gift cards for hundreds of retailers including Amazon, Target, Walmart, Starbucks, Whole Foods, CVS, Lowes, Home Depot, iTunes, Best Buy, Sears, Kohls, eBay, GameStop, etc.
Spendabit, Overstock and The Bitcoin Directory Retail shopping with millions of results
ShakePay Generate one time use Visa cards in seconds
NewEgg and Dell For all your electronics needs
Bitwa.la, Coinbills, Piixpay, Bitbill.eu, Bylls, Coins.ph, Bitrefill, LivingRoomofSatoshi, Coinsfer, and more Bill payment
Menufy, Takeaway and Thuisbezorgd NL Takeout delivered to your door
Expedia, Cheapair, Destinia, Abitsky, SkyTours, the Travel category on Gyft and 9flats For when you need to get away
Cryptostorm, Mullvad, and PIA VPN services
Namecheap, Porkbun Domain name registration
Stampnik Discounted USPS Priority, Express, First-Class mail postage
Coinmap and AirBitz are helpful to find local businesses accepting bitcoins. A good resource for UK residents is at wheretospendbitcoins.co.uk.
There are also lots of charities which accept bitcoin donations.

Merchant Resources

There are several benefits to accepting bitcoin as a payment option if you are a merchant;
If you are interested in accepting bitcoin as a payment method, there are several options available;

Can I mine bitcoin?

Mining bitcoins can be a fun learning experience, but be aware that you will most likely operate at a loss. Newcomers are often advised to stay away from mining unless they are only interested in it as a hobby similar to folding at home. If you want to learn more about mining you can read more here. Still have mining questions? The crew at /BitcoinMining would be happy to help you out.
If you want to contribute to the bitcoin network by hosting the blockchain and propagating transactions you can run a full node using this setup guide. If you would prefer to keep it simple there are several good options. You can view the global node distribution here.

Earning bitcoins

Just like any other form of money, you can also earn bitcoins by being paid to do a job.
Site Description
WorkingForBitcoins, Bitwage, Cryptogrind, Coinality, Bitgigs, /Jobs4Bitcoins, BitforTip, Rein Project Freelancing
Lolli Earn bitcoin when you shop online!
OpenBazaar, Purse.io, Bitify, /Bitmarket, 21 Market Marketplaces
/GirlsGoneBitcoin NSFW Adult services
A-ads, Coinzilla.io Advertising
You can also earn bitcoins by participating as a market maker on JoinMarket by allowing users to perform CoinJoin transactions with your bitcoins for a small fee (requires you to already have some bitcoins.

Bitcoin-Related Projects

The following is a short list of ongoing projects that might be worth taking a look at if you are interested in current development in the bitcoin space.
Project Description
Lightning Network Second layer scaling
Blockstream, Rootstock and Drivechain Sidechains
Hivemind and Augur Prediction markets
Tierion and Factom Records & Titles on the blockchain
BitMarkets, DropZone, Beaver and Open Bazaar Decentralized markets
JoinMarket and Wasabi Wallet CoinJoin implementation
Coinffeine and Bisq Decentralized bitcoin exchanges
Keybase Identity & Reputation management
Abra Global P2P money transmitter network
Bitcore Open source Bitcoin javascript library

Bitcoin Units

One Bitcoin is quite large (hundreds of £/$/€) so people often deal in smaller units. The most common subunits are listed below:
Unit Symbol Value Info
bitcoin BTC 1 bitcoin one bitcoin is equal to 100 million satoshis
millibitcoin mBTC 1,000 per bitcoin used as default unit in recent Electrum wallet releases
bit bit 1,000,000 per bitcoin colloquial "slang" term for microbitcoin (μBTC)
satoshi sat 100,000,000 per bitcoin smallest unit in bitcoin, named after the inventor
For example, assuming an arbitrary exchange rate of $10000 for one Bitcoin, a $10 meal would equal:
For more information check out the Bitcoin units wiki.
Still have questions? Feel free to ask in the comments below or stick around for our weekly Mentor Monday thread. If you decide to post a question in /Bitcoin, please use the search bar to see if it has been answered before, and remember to follow the community rules outlined on the sidebar to receive a better response. The mods are busy helping manage our community so please do not message them unless you notice problems with the functionality of the subreddit.
Note: This is a community created FAQ. If you notice anything missing from the FAQ or that requires clarification you can edit it here and it will be included in the next revision pending approval.
Welcome to the Bitcoin community and the new decentralized economy!
submitted by BitcoinFan7 to Bitcoin [link] [comments]

Microsoft patent 2020-060606 linking human brain to crypto payment system

Microsoft filed a patent 2020-060606 on June 20, 2019 for the link between the human body and the crypto payment system. It is a cryptocurrency mining system that uses human pulses such as brain waves and body heat to perform online tasks such as using search engines, chatbots, and reading ads. "A user can solve the arithmetically difficult problem unconsciously," says the patent.
In fact, this is a very brief description of a brain computer interface, which can read and write electromagnetic signals from the brain at such a finely meshed level that the brain literally becomes a biocomputer in a network. To understand that, please watch the video below and read on below. This is necessary so that you understand the current technological state of affairs.
Steve Hoffman - Brain Hacking & MindTech - Produced by DingDingTV
How cryptocurrency works The aim is that we are collectively hung in a hyve mind and it seems that what with crpyo-currency like Bitcoin still had to be done on energy-guzzling mining servers, can now be filled in by the “human bio-computer”.
The unique thing about blockchain payment systems was that as soon as you took a so-called wallet into the network, your computer formed a block in the network, where your computer receives a kind of calculation program that calculates the security key of a coin. All computers on the network must then come up with the same key as confirmation. If the entire network sees a transaction of a coin, all those keys are checked and if one is different, the transaction is illegal and rejected. That would create unhackable security.
The problem, however, is that Bitcoin mining requires a lot of computing power and that requires electricity. That's why Bitcoin mining ended up being one of the most energy-guzzling industries in the world. The Microsoft patent seems to aim at making this blockchain principle, which is not only very energy-guzzling, but also puts a heavy burden on the internet in terms of bandwidth (after all, all computers in the chain must always be checked for positive encryption), superfluous to make.
Simply put: Microsoft wants to use the human brain as a block in the blockchain. The 5G network will provide sufficient bandwidth to realize this.

Link digital ID, vaccination ID and social credit system:
The coronavirus pandemic provides the perfect alibi for the introduction of such a system. In concrete terms, this means that a score of your behavior (expressed in points) will initially be kept in the cloud. If you stick to the rules, you can take public transport or plane. If you don't follow the rules, your score will go down. The upcoming social distancing apps are a precursor to such a behavioral scoring system. After all, if you do not keep enough distance from potential infections, you have to quarantine at home. We also see China taking the lead there. Watch the video below and then read on.
Wuhan coronavirus covid-19 totalitarian UN propaganda?
Although Bill Gates officially retired from Microsoft's board this year, we can guess who the big driving force behind patent 2020-060606 is.
Of course, I need not point out to the attentive reader that we recognize here the Biblical number of the mark of the beast from the Bible book of Revelation: 666. It states that the time will come when no one will be able to buy or sell without to bear 'the beast'. This under the statement that this number is six hundred and sixty-six.
The same Bill Gates is behind the ID2020 initiative that wants to develop a digital ID for vaccination registration. If you combine such a digital ID hallmark with a digital passport (ID) and with patent 2020-060606, then you have completely enslaved people.

Revelation 13: 16-18
16: And it causes it to give a mark to all, small and great, and rich and poor, and free and servants, on their right hand or on their foreheads;
17: And that no one should buy or sell except he who has that mark, or the name of the beast, or the number of his name.
18: Here is wisdom: let him that have understanding count the number of the beast; for the number of a man is, and his number is six hundred sixty and six.

The "Official Gazette of the Kingdom of the Netherlands" announced on March 31, 2020 (“coincidentally”) change in law that allows a digital ID. Translated:
Kingdom Act of 6 March 2020 amending the Passport Act in connection with the introduction of electronic identification with a public identification means and the expansion of the basic register of travel documents.
We Willem-Alexander, by the grace of God, King of the Netherlands, Prince of Oranje-Nassau, etc. etc. etc.
All who will see or hear it read, salute! do to know:
Thus We have considered that it is desirable to amend the Passport Act in connection with the introduction of electronic identification with a public means and the extension of the basic register of travel documents;


The consequences:
So if we don't wake up in masses now and discover that we are witnessing a Psychological Operation that fully complies with the master script, then there is no escape. Then we cannot buy or sell anything if we do not meet all the requirements of the state. And to all, it really means all. Making a minor offense once has immediate consequences. Not cooperating with the vaccination obligation (think Bill Gates) will definitely mean the end of being able to travel and participate in society at all. You should consider the most basic things such as being able to buy food and drink.

We must step out of our programming and know that we are sovereign. Please read the article from the official journal above again. In it you see that you can fully rely on your consciousness sovereignty. You are sovereign by nature and no law can bind you to anything. It says "We Willem-Alexander, by the grace of God". Now let him prove "that grace of God".
Every law is signed by the king by the grace of God. There is no evidence whatsoever of this and so the law does not apply. The only problem is the fact that social systems have built up around that grace of God, to which many swear allegiance.
Do we sit back and relax until we are swallowed up by the system of "the internet of things" by the grace of God, or do we activate ourselves to concrete things? Concrete matters means that we have to switch from passive to active and discover who we are in potential and in essence.
submitted by JemIrie to conspiracy [link] [comments]

Why choose Bitcoin Cash?

Some of you might be coming to this sub, and wondering why so many people support Bitcoin Cash. This is directly answered in the pinned FAQ, and also briefly goes over the history of the sub. Now onto why Bitcoin Cash has huge potential when it comes to changing the world:
Bitcoin Cash was created with the purpose of bringing economic freedom to everyone all across the globe. With the current banking, financial, and payment systems, there are many issues when it comes to the usability of money. These issues are:
- Sending money across the globe without having to pay high fees (percentage fees), and waiting days or even weeks for your transfer to go through
- Having payment options like Visa and Mastercard that help deal with high-volume business, but having to pay a flat fee ($0.15), and a fee of 2%-3% per purchase
- Having full control over your money, so the government can't devalue your savings by printing more money for their personal interests
- Being able to use your money however you like, without having to get permission from an intermediary, middleman, or financial institution
- Being able to know how much money will be circulating at any given time in the future
- Paying high fees (4%+) for converting currency when travelling
Let's take a look at how Bitcoin Cash solves these problems:
Remittance
When it comes to sending money across the globe from one bank account to another, often times the fees will be very high because when your bank is sending money, it has to go through several intermediary banks that each take from the initial amount of money, making the process slow, and expensive. Currently, Western Union is advertising "free" transfers of currency across the globe. Seems like a good deal, right? Well here's the thing: they're tricking you into thinking that transfers are free when they're actually making money off of the exchange rate. We believe that money (digital cash) should be as frictionless as possible, and that a user shouldn't have to deal with transfer fees, and have to get permission to transfer their money from one bank to another. Currently, the fees on Bitcoin Cash are only $0.0007, and we plan on keeping them that low.
Payment Systems
When it comes to traditional payment systems, like Visa, Mastercard, and American Express, credit card companies often charge a 2%-3% fee on every transaction that takes place, and a transaction can take anywhere from 24-36 hours to confirm, and go into a merchant's bank account. These payment systems are both slow and expensive. With Bitcoin Cash, your funds are available instantly for you to spend, but if you want to take extra security measures, you can always wait ~10 minutes for a confirmation to go through.
Control Over Your Own Money
With the banking system as we currently know it, one of the biggest problems is the lack of control your have over your own money. Every year, people are forced to pay taxes to politicians only to have their money basically wasted on providing effectively nothing to them. Bitcoin Cash solves this problem by giving you full control over your money. Making a wallet does not require anyone to give ID, personal information, or anything that could potentially lead to the government having any say in what you can do with your hard-earned money. Another issue with traditional currencies is the inflationary nature of them. This is another form of taxation that doesn't appear to be as bad as taxing, but it's just a different way of taking money from the hands of citizens. When the government prints more money, your savings get devalued, meaning that the government has effectively stolen money without physically "stealing" it. With Bitcoin Cash, the inflation relies on a purely mathematical system in which the maximum number of Bitcoins will always be 21 million. With mathematical certainty, you can always be sure of the exact supply of Bitcoins based on the block number. I made a graph that helps illustrate this with >99.99997% accuracy on how many Bitcoin Cash will be in circulation based on the block height. This works for Bitcoin, and Bitcoin SV too. You can check the accuracy by putting the block height/number in the brackets of the second expression.
Currency Conversion
Have you ever travelled to another country where you had to convert to the local currency in order to be able to use it? If so, you would've realized that conversion rates can often be very high, and it is impractical to do unless you're converting a large sum of money. Our idea is to increase merchant adoption so that Bitcoin Cash can have its own economy, so it doesn't matter where in the world you are, you can always use Bitcoin Cash, and not have to worry about conversion fees. If you want to "convert" to another currency, you can always use SLP tokens that will eventually come in a variety of local fiat currencies in the near future. Tether USDT is already planning to make SLP tokens too. This is also a great alternative if you aren't sure whether you want to put your money into crypto, and want to stick with fiat instead. Think of SLP tokens as "paper" tokens on top of Bitcoin Cash that can be sent and received for fractions of a penny!
How to use Bitcoin Cash for Buying Goods and Services
Right now, there are many ways you can use Bitcoin Cash, including local usage, and online usage. If you want to see which merchants near you accept Bitcoin Cash, you can check using map.bitcoin.com and see which local merchants are accepting Bitcoin Cash. If you want to buy things online, you can use purse.io, and get 30% off on any Amazon purchase, so you contribute to the economy of growing Bitcoin Cash, and get a great deal for any item you want to buy!
TL;DR: Bitcoin Cash is sound money which you have full control over your own money, and allows you to send any amount of money, anywhere in the world, instantly, and practically for free. If you have any additional questions, feel free to comment.
Resources:
Bitcoin Inflation Graph: https://www.desmos.com/calculatolaijpbrh4s
Buy things on Amazon using Bitcoin Cash: https://purse.io/shop
purse.io chrome extension: https://chrome.google.com/webstore/detail/purse-shop-with-bitcoin-b/amdginnpaflghjbbdkfenpekaeifnpee
See which local merchants accept Bitcoin Cash: https://map.bitcoin.com/
Wallets with Bitcoin Cash: Electron Cash, Bitcoin.com Wallet, Exodus, Badger Wallet
Bitcoin Cash website: https://bitcoincash.org
submitted by 1MightBeAPenguin to btc [link] [comments]

Symbol Platform by NEM - Tokenomics

First of all, remember that, you can get 1 XYM for 1 NEM you have.
Tokenomics
The Symbol public chain is a self-sustaining economic ecosystem involving node operators, harvesters, investors, users, and the XYM token. In this way, it’s similar to many decentralized blockchains, but there are important differences that make it easier for anyone to earn rewards. Here are the basics of the system.
XYM Supply and Inflation
XYM has a fixed maximum supply of approximately 9 billion tokens. At public chain release, the supply will consist of about 7.3 billion XYM, allocated to users based on their holdings of XEM on the NEM blockchain. Another 1.7 billion XYM will be created as inflationary rewards over time. The inflation rate is closely mapped to that of bitcoin, extending out over the next 100 years. Similar to mining rewards, Symbol’s rewards will be released to each block creator, but based on a POS+ (Proof of Stake+) system.
Proof of Stake
POS+ lets nodes create blocks based on their XYM stakes, which are holdings. Symbol uses the term harvesting instead of mining. The more tokens held by a node operator, the higher the chances of creating the next block and earning harvesting rewards. POS is a well-known system in the blockchain industry, but Symbol adds some improvements. POS+ calculates a score for each node operator based on the size of their stake AND other factors, such as recent network activity and the stakes that other users may delegate to them (see Delegated Harvesting below.) In this way, POS+ attempts to incentivize usage, competition for low fees, and other desirable behavior. You can read details on how POS+ is calculated in the Symbol whitepaper.
Nodes
Node operators all over the world keep the Symbol protocol robust and decentralized. For keeping the system running, node owners earn rewards from four sources.
Node operators can set up their nodes locally or on cloud services. For details on how to set up a node, refer to the developer documentation.
Block Rewards
Since Symbol’s blocks are confirmed several times per minute, rewards are frequent. Block rewards consist of inflation rewards and transaction fees. The chances of earning a block reward are based mainly on the operator’s XYM stake, as well as other factors like network activity. Both node operators and anyone else with a XYM wallet can earn block rewards.
The higher an account’s XYM balance, the higher the chance of it earning a block reward. Even those who don’t run a node can earn block rewards by delegating their stake to a node.
Delegated Harvesting
XYM owners who don’t operate nodes can also earn block rewards by delegating their stake to a node. Holders who delegate their stake retain full ownership of their coins and never expose their private keys. No funds have ever been lost from delegated harvesting. When delegated harvesters earn a block reward, the node operator who processed it earns 25% and the delegated harvester earns 75%. In this way, a node operator can greatly increase their earned rewards, and all holders can participate in rewards whether or not they run a node.
Transaction Fees
Node operators can set their own minimum fees for which they wish to process transactions. The lower the fees accepted, the more transactions they will be able to process. Generous node operators may even choose to process transactions for free if they wish. This creates competition among node operators.
Node Bonus Program
In order to incentivize stability in the number of nodes and circulating supply after launch, bonus rewards will be paid to node operators who maintain nodes with minimum balances of 1 million, 2 million, or 3 million XYM, with higher bonus rates for each tier. These rewards will draw from a fixed pool of reserves and gradually ramp down over six years.
Total Node Income
To summarize, node operators will earn income from block rewards (inflation + transaction fees) based on their own stakes and a 25% share of delegated stake block rewards. Estimates place these combined node rewards at approximately 5% or 6% for the first year, though this is not guaranteed. Operators can also earn bonuses for maintaining minimum stakes of over 1 million XYM.
Inflation Rate
Symbol’s inflation is mapped to bitcoin’s inflation with one difference. Bitcoin halves its rewards every four years. Symbol also drops its reward rate by half every four years, but instead of a single big drop, these reductions are spaced out to occur every quarter. This gives the same overall inflation as bitcoin, but with a more gradual decline.
Team Reserves
The Symbol Core Team will hold approximately 22% of XYM supply for funding future development, marketing, and partner projects. Historically, Core Team funds have not been used for harvesting and there are no plans to begin, meaning more block rewards available for other harvesters.
https://symbolplatform.com/
submitted by waterbottles4 to nem [link] [comments]

Symbol Platform by NEM - Tokenomics

First of all, remember that, you can get 1 XYM for 1 NEM you have.
Tokenomics
The Symbol public chain is a self-sustaining economic ecosystem involving node operators, harvesters, investors, users, and the XYM token. In this way, it’s similar to many decentralized blockchains, but there are important differences that make it easier for anyone to earn rewards. Here are the basics of the system.
XYM Supply and Inflation
XYM has a fixed maximum supply of approximately 9 billion tokens. At public chain release, the supply will consist of about 7.3 billion XYM, allocated to users based on their holdings of XEM on the NEM blockchain. Another 1.7 billion XYM will be created as inflationary rewards over time. The inflation rate is closely mapped to that of bitcoin, extending out over the next 100 years. Similar to mining rewards, Symbol’s rewards will be released to each block creator, but based on a POS+ (Proof of Stake+) system.
Proof of Stake
POS+ lets nodes create blocks based on their XYM stakes, which are holdings. Symbol uses the term harvesting instead of mining. The more tokens held by a node operator, the higher the chances of creating the next block and earning harvesting rewards. POS is a well-known system in the blockchain industry, but Symbol adds some improvements. POS+ calculates a score for each node operator based on the size of their stake AND other factors, such as recent network activity and the stakes that other users may delegate to them (see Delegated Harvesting below.) In this way, POS+ attempts to incentivize usage, competition for low fees, and other desirable behavior. You can read details on how POS+ is calculated in the Symbol whitepaper.
Nodes
Node operators all over the world keep the Symbol protocol robust and decentralized. For keeping the system running, node owners earn rewards from four sources.
Node operators can set up their nodes locally or on cloud services. For details on how to set up a node, refer to the developer documentation.
Block Rewards
Since Symbol’s blocks are confirmed several times per minute, rewards are frequent. Block rewards consist of inflation rewards and transaction fees. The chances of earning a block reward are based mainly on the operator’s XYM stake, as well as other factors like network activity. Both node operators and anyone else with a XYM wallet can earn block rewards.
The higher an account’s XYM balance, the higher the chance of it earning a block reward. Even those who don’t run a node can earn block rewards by delegating their stake to a node.
Delegated Harvesting
XYM owners who don’t operate nodes can also earn block rewards by delegating their stake to a node. Holders who delegate their stake retain full ownership of their coins and never expose their private keys. No funds have ever been lost from delegated harvesting. When delegated harvesters earn a block reward, the node operator who processed it earns 25% and the delegated harvester earns 75%. In this way, a node operator can greatly increase their earned rewards, and all holders can participate in rewards whether or not they run a node.
Transaction Fees
Node operators can set their own minimum fees for which they wish to process transactions. The lower the fees accepted, the more transactions they will be able to process. Generous node operators may even choose to process transactions for free if they wish. This creates competition among node operators.
Node Bonus Program
In order to incentivize stability in the number of nodes and circulating supply after launch, bonus rewards will be paid to node operators who maintain nodes with minimum balances of 1 million, 2 million, or 3 million XYM, with higher bonus rates for each tier. These rewards will draw from a fixed pool of reserves and gradually ramp down over six years.
Total Node Income
To summarize, node operators will earn income from block rewards (inflation + transaction fees) based on their own stakes and a 25% share of delegated stake block rewards. Estimates place these combined node rewards at approximately 5% or 6% for the first year, though this is not guaranteed. Operators can also earn bonuses for maintaining minimum stakes of over 1 million XYM.
Inflation Rate
Symbol’s inflation is mapped to bitcoin’s inflation with one difference. Bitcoin halves its rewards every four years. Symbol also drops its reward rate by half every four years, but instead of a single big drop, these reductions are spaced out to occur every quarter. This gives the same overall inflation as bitcoin, but with a more gradual decline.
Team Reserves
The Symbol Core Team will hold approximately 22% of XYM supply for funding future development, marketing, and partner projects. Historically, Core Team funds have not been used for harvesting and there are no plans to begin, meaning more block rewards available for other harvesters.
https://symbolplatform.com/
submitted by waterbottles4 to ico [link] [comments]

Symbol Platform by NEM - Tokenomics

First of all, remember that, you can get 1 XYM for 1 NEM you have.
Tokenomics
The Symbol public chain is a self-sustaining economic ecosystem involving node operators, harvesters, investors, users, and the XYM token. In this way, it’s similar to many decentralized blockchains, but there are important differences that make it easier for anyone to earn rewards. Here are the basics of the system.
XYM Supply and Inflation
XYM has a fixed maximum supply of approximately 9 billion tokens. At public chain release, the supply will consist of about 7.3 billion XYM, allocated to users based on their holdings of XEM on the NEM blockchain. Another 1.7 billion XYM will be created as inflationary rewards over time. The inflation rate is closely mapped to that of bitcoin, extending out over the next 100 years. Similar to mining rewards, Symbol’s rewards will be released to each block creator, but based on a POS+ (Proof of Stake+) system.
Proof of Stake
POS+ lets nodes create blocks based on their XYM stakes, which are holdings. Symbol uses the term harvesting instead of mining. The more tokens held by a node operator, the higher the chances of creating the next block and earning harvesting rewards. POS is a well-known system in the blockchain industry, but Symbol adds some improvements. POS+ calculates a score for each node operator based on the size of their stake AND other factors, such as recent network activity and the stakes that other users may delegate to them (see Delegated Harvesting below.) In this way, POS+ attempts to incentivize usage, competition for low fees, and other desirable behavior. You can read details on how POS+ is calculated in the Symbol whitepaper.
Nodes
Node operators all over the world keep the Symbol protocol robust and decentralized. For keeping the system running, node owners earn rewards from four sources.
Node operators can set up their nodes locally or on cloud services. For details on how to set up a node, refer to the developer documentation.
Block Rewards
Since Symbol’s blocks are confirmed several times per minute, rewards are frequent. Block rewards consist of inflation rewards and transaction fees. The chances of earning a block reward are based mainly on the operator’s XYM stake, as well as other factors like network activity. Both node operators and anyone else with a XYM wallet can earn block rewards.
The higher an account’s XYM balance, the higher the chance of it earning a block reward. Even those who don’t run a node can earn block rewards by delegating their stake to a node.
Delegated Harvesting
XYM owners who don’t operate nodes can also earn block rewards by delegating their stake to a node. Holders who delegate their stake retain full ownership of their coins and never expose their private keys. No funds have ever been lost from delegated harvesting. When delegated harvesters earn a block reward, the node operator who processed it earns 25% and the delegated harvester earns 75%. In this way, a node operator can greatly increase their earned rewards, and all holders can participate in rewards whether or not they run a node.
Transaction Fees
Node operators can set their own minimum fees for which they wish to process transactions. The lower the fees accepted, the more transactions they will be able to process. Generous node operators may even choose to process transactions for free if they wish. This creates competition among node operators.
Node Bonus Program
In order to incentivize stability in the number of nodes and circulating supply after launch, bonus rewards will be paid to node operators who maintain nodes with minimum balances of 1 million, 2 million, or 3 million XYM, with higher bonus rates for each tier. These rewards will draw from a fixed pool of reserves and gradually ramp down over six years.
Total Node Income
To summarize, node operators will earn income from block rewards (inflation + transaction fees) based on their own stakes and a 25% share of delegated stake block rewards. Estimates place these combined node rewards at approximately 5% or 6% for the first year, though this is not guaranteed. Operators can also earn bonuses for maintaining minimum stakes of over 1 million XYM.
Inflation Rate
Symbol’s inflation is mapped to bitcoin’s inflation with one difference. Bitcoin halves its rewards every four years. Symbol also drops its reward rate by half every four years, but instead of a single big drop, these reductions are spaced out to occur every quarter. This gives the same overall inflation as bitcoin, but with a more gradual decline.
Team Reserves
The Symbol Core Team will hold approximately 22% of XYM supply for funding future development, marketing, and partner projects. Historically, Core Team funds have not been used for harvesting and there are no plans to begin, meaning more block rewards available for other harvesters.
https://symbolplatform.com/
submitted by waterbottles4 to CryptoICO [link] [comments]

Symbol Platform by NEM - Tokenomics

First of all, remember that, you can get 1 XYM for 1 NEM you have.
Tokenomics
The Symbol public chain is a self-sustaining economic ecosystem involving node operators, harvesters, investors, users, and the XYM token. In this way, it’s similar to many decentralized blockchains, but there are important differences that make it easier for anyone to earn rewards. Here are the basics of the system.
XYM Supply and Inflation
XYM has a fixed maximum supply of approximately 9 billion tokens. At public chain release, the supply will consist of about 7.3 billion XYM, allocated to users based on their holdings of XEM on the NEM blockchain. Another 1.7 billion XYM will be created as inflationary rewards over time. The inflation rate is closely mapped to that of bitcoin, extending out over the next 100 years. Similar to mining rewards, Symbol’s rewards will be released to each block creator, but based on a POS+ (Proof of Stake+) system.
Proof of Stake
POS+ lets nodes create blocks based on their XYM stakes, which are holdings. Symbol uses the term harvesting instead of mining. The more tokens held by a node operator, the higher the chances of creating the next block and earning harvesting rewards. POS is a well-known system in the blockchain industry, but Symbol adds some improvements. POS+ calculates a score for each node operator based on the size of their stake AND other factors, such as recent network activity and the stakes that other users may delegate to them (see Delegated Harvesting below.) In this way, POS+ attempts to incentivize usage, competition for low fees, and other desirable behavior. You can read details on how POS+ is calculated in the Symbol whitepaper.
Nodes
Node operators all over the world keep the Symbol protocol robust and decentralized. For keeping the system running, node owners earn rewards from four sources.
Node operators can set up their nodes locally or on cloud services. For details on how to set up a node, refer to the developer documentation.
Block Rewards
Since Symbol’s blocks are confirmed several times per minute, rewards are frequent. Block rewards consist of inflation rewards and transaction fees. The chances of earning a block reward are based mainly on the operator’s XYM stake, as well as other factors like network activity. Both node operators and anyone else with a XYM wallet can earn block rewards.
The higher an account’s XYM balance, the higher the chance of it earning a block reward. Even those who don’t run a node can earn block rewards by delegating their stake to a node.
Delegated Harvesting
XYM owners who don’t operate nodes can also earn block rewards by delegating their stake to a node. Holders who delegate their stake retain full ownership of their coins and never expose their private keys. No funds have ever been lost from delegated harvesting. When delegated harvesters earn a block reward, the node operator who processed it earns 25% and the delegated harvester earns 75%. In this way, a node operator can greatly increase their earned rewards, and all holders can participate in rewards whether or not they run a node.
Transaction Fees
Node operators can set their own minimum fees for which they wish to process transactions. The lower the fees accepted, the more transactions they will be able to process. Generous node operators may even choose to process transactions for free if they wish. This creates competition among node operators.
Node Bonus Program
In order to incentivize stability in the number of nodes and circulating supply after launch, bonus rewards will be paid to node operators who maintain nodes with minimum balances of 1 million, 2 million, or 3 million XYM, with higher bonus rates for each tier. These rewards will draw from a fixed pool of reserves and gradually ramp down over six years.
Total Node Income
To summarize, node operators will earn income from block rewards (inflation + transaction fees) based on their own stakes and a 25% share of delegated stake block rewards. Estimates place these combined node rewards at approximately 5% or 6% for the first year, though this is not guaranteed. Operators can also earn bonuses for maintaining minimum stakes of over 1 million XYM.
Inflation Rate
Symbol’s inflation is mapped to bitcoin’s inflation with one difference. Bitcoin halves its rewards every four years. Symbol also drops its reward rate by half every four years, but instead of a single big drop, these reductions are spaced out to occur every quarter. This gives the same overall inflation as bitcoin, but with a more gradual decline.
Team Reserves
The Symbol Core Team will hold approximately 22% of XYM supply for funding future development, marketing, and partner projects. Historically, Core Team funds have not been used for harvesting and there are no plans to begin, meaning more block rewards available for other harvesters.
https://symbolplatform.com/
submitted by waterbottles4 to CryptoICONews [link] [comments]

Symbol Platform by NEM - Tokenomics

First of all, remember that, you can get 1 XYM for 1 NEM you have.
Tokenomics
The Symbol public chain is a self-sustaining economic ecosystem involving node operators, harvesters, investors, users, and the XYM token. In this way, it’s similar to many decentralized blockchains, but there are important differences that make it easier for anyone to earn rewards. Here are the basics of the system.
XYM Supply and Inflation
XYM has a fixed maximum supply of approximately 9 billion tokens. At public chain release, the supply will consist of about 7.3 billion XYM, allocated to users based on their holdings of XEM on the NEM blockchain. Another 1.7 billion XYM will be created as inflationary rewards over time. The inflation rate is closely mapped to that of bitcoin, extending out over the next 100 years. Similar to mining rewards, Symbol’s rewards will be released to each block creator, but based on a POS+ (Proof of Stake+) system.
Proof of Stake
POS+ lets nodes create blocks based on their XYM stakes, which are holdings. Symbol uses the term harvesting instead of mining. The more tokens held by a node operator, the higher the chances of creating the next block and earning harvesting rewards. POS is a well-known system in the blockchain industry, but Symbol adds some improvements. POS+ calculates a score for each node operator based on the size of their stake AND other factors, such as recent network activity and the stakes that other users may delegate to them (see Delegated Harvesting below.) In this way, POS+ attempts to incentivize usage, competition for low fees, and other desirable behavior. You can read details on how POS+ is calculated in the Symbol whitepaper.
Nodes
Node operators all over the world keep the Symbol protocol robust and decentralized. For keeping the system running, node owners earn rewards from four sources.
Node operators can set up their nodes locally or on cloud services. For details on how to set up a node, refer to the developer documentation.
Block Rewards
Since Symbol’s blocks are confirmed several times per minute, rewards are frequent. Block rewards consist of inflation rewards and transaction fees. The chances of earning a block reward are based mainly on the operator’s XYM stake, as well as other factors like network activity. Both node operators and anyone else with a XYM wallet can earn block rewards.
The higher an account’s XYM balance, the higher the chance of it earning a block reward. Even those who don’t run a node can earn block rewards by delegating their stake to a node.
Delegated Harvesting
XYM owners who don’t operate nodes can also earn block rewards by delegating their stake to a node. Holders who delegate their stake retain full ownership of their coins and never expose their private keys. No funds have ever been lost from delegated harvesting. When delegated harvesters earn a block reward, the node operator who processed it earns 25% and the delegated harvester earns 75%. In this way, a node operator can greatly increase their earned rewards, and all holders can participate in rewards whether or not they run a node.
Transaction Fees
Node operators can set their own minimum fees for which they wish to process transactions. The lower the fees accepted, the more transactions they will be able to process. Generous node operators may even choose to process transactions for free if they wish. This creates competition among node operators.
Node Bonus Program
In order to incentivize stability in the number of nodes and circulating supply after launch, bonus rewards will be paid to node operators who maintain nodes with minimum balances of 1 million, 2 million, or 3 million XYM, with higher bonus rates for each tier. These rewards will draw from a fixed pool of reserves and gradually ramp down over six years.
Total Node Income
To summarize, node operators will earn income from block rewards (inflation + transaction fees) based on their own stakes and a 25% share of delegated stake block rewards. Estimates place these combined node rewards at approximately 5% or 6% for the first year, though this is not guaranteed. Operators can also earn bonuses for maintaining minimum stakes of over 1 million XYM.
Inflation Rate
Symbol’s inflation is mapped to bitcoin’s inflation with one difference. Bitcoin halves its rewards every four years. Symbol also drops its reward rate by half every four years, but instead of a single big drop, these reductions are spaced out to occur every quarter. This gives the same overall inflation as bitcoin, but with a more gradual decline.
Team Reserves
The Symbol Core Team will hold approximately 22% of XYM supply for funding future development, marketing, and partner projects. Historically, Core Team funds have not been used for harvesting and there are no plans to begin, meaning more block rewards available for other harvesters.
https://symbolplatform.com/
submitted by waterbottles4 to ICOAnalysis [link] [comments]

Bitcoin! What it is!?

This material is published using the PII algorithm (point information impact) developed by zitramon1

Bitcoin is the lowest projection of the energy standard of the Higher Plans Erzanil and has nothing to do with money or cryptocurrencies. In its primary principle, bitcoin was intended to replace the modern banking credit monetary system to SES — the system of energy-informational-energy settlements / mutual settlements. Unfortunately, something went wrong.
Money is a deadly virus that in the past destroyed the vast majority of ancient highly developed civilizations of our planet. Our civilization is no exception. The real Bitcoin, which was supposed to replace the existing bank credit monetary system with a system of energy settlements, as well as countless times in the past, was successfully destroyed.
At the moment, bitcoin is deprived of its basic qualities. But, nevertheless, even in such a “truncated” form it is a powerful tool for terraforming the existing paradigm of the material world.
At the level of society or the manifested physical world, represented by the third dimension, Bitcoin is the Standard and Measure from which any Countdown starts, and which are the basis of all Principles. Bitcoin itself is not only composed of pure energy, but also itself is energy in the very purest form.
Our world is energy-informational. Everything that exists in this Universe and in this Dimension, as well as in many other dimensions, is the same Energy, but in its various states. And the state of Vibration of this energy, providing one or another level of its Density, just decides how it will manifest in our Reality. Matter is the compressed energy of slow vibration. In fact, bitcoin is the equivalent of energy, of which everything around us consists, including — and we are with you!
The tragedy of the majority is that it does not understand the true purpose of Bitcoin — it is that Measure of everything and everything from which the entire Countdown comes. Not the price of Bitcoin should be modeled in dollars, gold or parrots — which is absolutely equivalent, but the value of all other attributes of society in bitcoins!
The fractality of Bitcoin, as the foundation of any of the Worlds in which you are located, is reflected in its essence: at low-frequency levels, its projection represents two diverse anu combined in a single whole. It is this explosive-implosive particle that combines two opposites, and not some mythical atoms, quanta, neutrinos, and similar nonsense, is the basis of everything!
Not Satoshi is the smallest part of bitcoin, but a double anu or argo! Remember the catch phrase that personifies the synonym of all the great Beginnings — “like the Argonauts in the old days” !? Try to guess the first time about its origins, located on a subconscious level.
The mining process itself is nothing more than a manifestation of the lower projections of the energy standard of the higher planes of erzanil. The latter are “materialized” at the level of the third dimension or society in the form of bitcoins. During mining, the three main types of energy: electrical energy, the thermal energy of the video card / device itself and the energy that the programmer potentiated into the mining process itself, are converted into energy to fill the shells of bitcoins generated during the hashing process. This energy is stored in every bitcoin forever and will increase until the last block of the last bitcoin is fully mined.
This energy, which is potentialized in bitcoin, which can neither be felt nor touched, is what you get with bitcoin and / or any part of it !!! And in the future, invest it / Bitcoin, exchange, buy, change, etc. etc.
And it is this energy, in the future, that will serve as an evaluation standard for the value of all things.
The smallest part of bitcoin is not Satoshi, but Argo or the double Anu. One argo is one in minus twenty-first degree part of bitcoin, and its energy potential corresponds to one in minus twenty-first degree of it, bitcoin, the maximum possible energy content.
The entire energy potential of 21 million bitcoins determines the energy / energy-information capacity = energy / energy-information potential of the sephira Malkut of the Tree of life (Kabbalah) or the manifest physical world at the level of the third dimension.
In other words, all people including you and me, to some extent consist of bitcoins and represent its integral and composition parts! More confirmation of this:
https://patentscope.wipo.int/search/en/detail.jsf?docId=WO2020060606&tab=PCTBIBLIO
Calculations / mutual settlements by bitcoins are possible not only at the level of society / third dimension, but also on higher planes — astral and mental, since bitcoin is not an equivalent but pure energy and this makes subsequent contacts with more advanced forms of life possible other systems!
THAT’S WHAT IS THE ESSENCE OF BITCOIN!
p.s. You can see how bitcoin is managed here:
https://www.reddit.com/Bitcoin/comments/hy4x5y/is_bitcoin_real_bitcoin_today/
submitted by Yoo_Tu to Bitcoin [link] [comments]

How To Buy Bitcoin

A user-friendly guide on how to buy Bitcoin
Figure out how much bitcoin you need. Go to http://www.coindesk.com/calculato and enter the amount you need in USD. ALWAYS buy $5 more than you need as Bitcoin rates can go up and down though out the day, and partial payments are refunded by our payment system.
Step 1) Create a wallet – Somewhere to put your coins: e.g.. Cash App, Paxful, Robinhood etc. there are so many out there.
The Easiest Wallet: Cash App or Paxful
How to Buy Bitcoin with Cash App
How to Send Bitcoin with Cash App
Step 2) If you created your wallet on your desktop, download the app to your smart phone.
Suggested Places to Buy Bitcoins:a) CashApp – Fast and easy
b) Paxful – Buy bitcoin with paypal, zelle, venmo, gift cards etc
c) Robinhood App
d) LibertyX – buy bitcoin on their app or at any 7-11, CVS, or Rite Aid (usa only)
e) Local Coin (Buy with Interac E-transfer for Canadians)
f) Localbitcoins.com
g) Coinmama – Fast
h) Search Google for a Bitcoin atm in your city (takes cash, gives you Bitcoins – Easiest & Fastest Method. You can now do this in 2 minutes with LibertyX at any 7-11, CVS or Riteaid)
Step 3) Purchase your bitcoins.
Remember, you don’t have to a full bitcoin, you may buy decimal amounts ie 0.05btc / 0.0675btc etc – according to what you need.
Please note all bitcoin ATM’s etc take a % for a transaction fee – always calculate that when purchasing your bitcoins as typically you’ll need to buy 3-5% more than your order purchase price.
Step 4) Proceed to www.idviking.com and place your order!!
Step 5) It is IMPORTANT to buy your bitcoins and send them to your own wallet first, before ordering from us. Sometimes it takes a few hours after you first order your bitcoins, before they arrive in your wallet. (with an ATM this is instant).
Voila! You’re Done!
* One thing to note for Canadians using bitcoin ATM’s, the company that runs Honey Badger or Badger Coin in Canada are known scammers, please do not use them as they have been regularly defrauding people out of money. A quick search of their reviews will also confirm this is. There are many other bitcoin ATM’s out there, do not use them.

How To Use A Bitcoin ATM
submitted by Antonio2000x to PhakeIDs [link] [comments]

Scaling Reddit Community Points with Arbitrum Rollup: a piece of cake

Scaling Reddit Community Points with Arbitrum Rollup: a piece of cake
https://preview.redd.it/b80c05tnb9e51.jpg?width=2550&format=pjpg&auto=webp&s=850282c1a3962466ed44f73886dae1c8872d0f31
Submitted for consideration to The Great Reddit Scaling Bake-Off
Baked by the pastry chefs at Offchain Labs
Please send questions or comments to [[email protected] ](mailto:[email protected])
1. Overview
We're excited to submit Arbitrum Rollup for consideration to The Great Reddit Scaling Bake-Off. Arbitrum Rollup is the only Ethereum scaling solution that supports arbitrary smart contracts without compromising on Ethereum's security or adding points of centralization. For Reddit, this means that Arbitrum can not only scale the minting and transfer of Community Points, but it can foster a creative ecosystem built around Reddit Community Points enabling points to be used in a wide variety of third party applications. That's right -- you can have your cake and eat it too!
Arbitrum Rollup isn't just Ethereum-style. Its Layer 2 transactions are byte-for-byte identical to Ethereum, which means Ethereum users can continue to use their existing addresses and wallets, and Ethereum developers can continue to use their favorite toolchains and development environments out-of-the-box with Arbitrum. Coupling Arbitrum’s tooling-compatibility with its trustless asset interoperability, Reddit not only can scale but can onboard the entire Ethereum community at no cost by giving them the same experience they already know and love (well, certainly know).
To benchmark how Arbitrum can scale Reddit Community Points, we launched the Reddit contracts on an Arbitrum Rollup chain. Since Arbitrum provides full Solidity support, we didn't have to rewrite the Reddit contracts or try to mimic their functionality using an unfamiliar paradigm. Nope, none of that. We launched the Reddit contracts unmodified on Arbitrum Rollup complete with support for minting and distributing points. Like every Arbitrum Rollup chain, the chain included a bridge interface in which users can transfer Community Points or any other asset between the L1 and L2 chains. Arbitrum Rollup chains also support dynamic contract loading, which would allow third-party developers to launch custom ecosystem apps that integrate with Community Points on the very same chain that runs the Reddit contracts.
1.1 Why Ethereum
Perhaps the most exciting benefit of distributing Community Points using a blockchain is the ability to seamlessly port points to other applications and use them in a wide variety of contexts. Applications may include simple transfers such as a restaurant that allows Redditors to spend points on drinks. Or it may include complex smart contracts -- such as placing Community Points as a wager for a multiparty game or as collateral in a financial contract.
The common denominator between all of the fun uses of Reddit points is that it needs a thriving ecosystem of both users and developers, and the Ethereum blockchain is perhaps the only smart contract platform with significant adoption today. While many Layer 1 blockchains boast lower cost or higher throughput than the Ethereum blockchain, more often than not, these attributes mask the reality of little usage, weaker security, or both.
Perhaps another platform with significant usage will rise in the future. But today, Ethereum captures the mindshare of the blockchain community, and for Community Points to provide the most utility, the Ethereum blockchain is the natural choice.
1.2 Why Arbitrum
While Ethereum's ecosystem is unmatched, the reality is that fees are high and capacity is too low to support the scale of Reddit Community Points. Enter Arbitrum. Arbitrum Rollup provides all of the ecosystem benefits of Ethereum, but with orders of magnitude more capacity and at a fraction of the cost of native Ethereum smart contracts. And most of all, we don't change the experience from users. They continue to use the same wallets, addresses, languages, and tools.
Arbitrum Rollup is not the only solution that can scale payments, but it is the only developed solution that can scale both payments and arbitrary smart contracts trustlessly, which means that third party users can build highly scalable add-on apps that can be used without withdrawing money from the Rollup chain. If you believe that Reddit users will want to use their Community Points in smart contracts--and we believe they will--then it makes the most sense to choose a single scaling solution that can support the entire ecosystem, eliminating friction for users.
We view being able to run smart contracts in the same scaling solution as fundamentally critical since if there's significant demand in running smart contracts from Reddit's ecosystem, this would be a load on Ethereum and would itself require a scaling solution. Moreover, having different scaling solutions for the minting/distribution/spending of points and for third party apps would be burdensome for users as they'd have to constantly shuffle their Points back and forth.
2. Arbitrum at a glance
Arbitrum Rollup has a unique value proposition as it offers a combination of features that no other scaling solution achieves. Here we highlight its core attributes.
Decentralized. Arbitrum Rollup is as decentralized as Ethereum. Unlike some other Layer 2 scaling projects, Arbitrum Rollup doesn't have any centralized components or centralized operators who can censor users or delay transactions. Even in non-custodial systems, centralized components provide a risk as the operators are generally incentivized to increase their profit by extracting rent from users often in ways that severely degrade user experience. Even if centralized operators are altruistic, centralized components are subject to hacking, coercion, and potential liability.
Massive Scaling. Arbitrum achieves order of magnitude scaling over Ethereum's L1 smart contracts. Our software currently supports 453 transactions-per-second for basic transactions (at 1616 Ethereum gas per tx). We have a lot of room left to optimize (e.g. aggregating signatures), and over the next several months capacity will increase significantly. As described in detail below, Arbitrum can easily support and surpass Reddit's anticipated initial load, and its capacity will continue to improve as Reddit's capacity needs grow.
Low cost. The cost of running Arbitrum Rollup is quite low compared to L1 Ethereum and other scaling solutions such as those based on zero-knowledge proofs. Layer 2 fees are low, fixed, and predictable and should not be overly burdensome for Reddit to cover. Nobody needs to use special equipment or high-end machines. Arbitrum requires validators, which is a permissionless role that can be run on any reasonable on-line machine. Although anybody can act as a validator, in order to protect against a “tragedy of the commons” and make sure reputable validators are participating, we support a notion of “invited validators” that are compensated for their costs. In general, users pay (low) fees to cover the invited validators’ costs, but we imagine that Reddit may cover this cost for its users. See more on the costs and validator options below.
Ethereum Developer Experience. Not only does Arbitrum support EVM smart contracts, but the developer experience is identical to that of L1 Ethereum contracts and fully compatible with Ethereum tooling. Developers can port existing Solidity apps or write new ones using their favorite and familiar toolchains (e.g. Truffle, Buidler). There are no new languages or coding paradigms to learn.
Ethereum wallet compatibility. Just as in Ethereum, Arbitrum users need only hold keys, but do not have to store any coin history or additional data to protect or access their funds. Since Arbitrum transactions are semantically identical to Ethereum L1 transactions, existing Ethereum users can use their existing Ethereum keys with their existing wallet software such as Metamask.
Token interoperability. Users can easily transfer their ETH, ERC-20 and ERC-721 tokens between Ethereum and the Arbitrum Rollup chain. As we explain in detail below, it is possible to mint tokens in L2 that can subsequently be withdrawn and recognized by the L1 token contract.
Fast finality. Transactions complete with the same finality time as Ethereum L1 (and it's possible to get faster finality guarantees by trading away trust assumptions; see the Arbitrum Rollup whitepaper for details).
Non-custodial. Arbitrum Rollup is a non-custodial scaling solution, so users control their funds/points and neither Reddit nor anyone else can ever access or revoke points held by users.
Censorship Resistant. Since it's completely decentralized, and the Arbitrum protocol guarantees progress trustlessly, Arbitrum Rollup is just as censorship-proof as Ethereum.
Block explorer. The Arbitrum Rollup block explorer allows users to view and analyze transactions on the Rollup chain.
Limitations
Although this is a bake-off, we're not going to sugar coat anything. Arbitrum Rollup, like any Optimistic Rollup protocol, does have one limitation, and that's the delay on withdrawals.
As for the concrete length of the delay, we've done a good deal of internal modeling and have blogged about this as well. Our current modeling suggests a 3-hour delay is sufficient (but as discussed in the linked post there is a tradeoff space between the length of the challenge period and the size of the validators’ deposit).
Note that this doesn't mean that the chain is delayed for three hours. Arbitrum Rollup supports pipelining of execution, which means that validators can keep building new states even while previous ones are “in the pipeline” for confirmation. As the challenge delays expire for each update, a new state will be confirmed (read more about this here).
So activity and progress on the chain are not delayed by the challenge period. The only thing that's delayed is the consummation of withdrawals. Recall though that any single honest validator knows immediately (at the speed of L1 finality) which state updates are correct and can guarantee that they will eventually be confirmed, so once a valid withdrawal has been requested on-chain, every honest party knows that the withdrawal will definitely happen. There's a natural place here for a liquidity market in which a validator (or someone who trusts a validator) can provide withdrawal loans for a small interest fee. This is a no-risk business for them as they know which withdrawals will be confirmed (and can force their confirmation trustlessly no matter what anyone else does) but are just waiting for on-chain finality.
3. The recipe: How Arbitrum Rollup works
For a description of the technical components of Arbitrum Rollup and how they interact to create a highly scalable protocol with a developer experience that is identical to Ethereum, please refer to the following documents:
Arbitrum Rollup Whitepaper
Arbitrum academic paper (describes a previous version of Arbitrum)
4. Developer docs and APIs
For full details about how to set up and interact with an Arbitrum Rollup chain or validator, please refer to our developer docs, which can be found at https://developer.offchainlabs.com/.
Note that the Arbitrum version described on that site is older and will soon be replaced by the version we are entering in Reddit Bake-Off, which is still undergoing internal testing before public release.
5. Who are the validators?
As with any Layer 2 protocol, advancing the protocol correctly requires at least one validator (sometimes called block producers) that is honest and available. A natural question is: who are the validators?
Recall that the validator set for an Arbitrum chain is open and permissionless; anyone can start or stop validating at will. (A useful analogy is to full nodes on an L1 chain.) But we understand that even though anyone can participate, Reddit may want to guarantee that highly reputable nodes are validating their chain. Reddit may choose to validate the chain themselves and/or hire third-party validators.To this end, we have begun building a marketplace for validator-for-hire services so that dapp developers can outsource validation services to reputable nodes with high up-time. We've announced a partnership in which Chainlink nodes will provide Arbitrum validation services, and we expect to announce more partnerships shortly with other blockchain infrastructure providers.
Although there is no requirement that validators are paid, Arbitrum’s economic model tracks validators’ costs (e.g. amount of computation and storage) and can charge small fees on user transactions, using a gas-type system, to cover those costs. Alternatively, a single party such as Reddit can agree to cover the costs of invited validators.
6. Reddit Contract Support
Since Arbitrum contracts and transactions are byte-for-byte compatible with Ethereum, supporting the Reddit contracts is as simple as launching them on an Arbitrum chain.
Minting. Arbitrum Rollup supports hybrid L1/L2 tokens which can be minted in L2 and then withdrawn onto the L1. An L1 contract at address A can make a special call to the EthBridge which deploys a "buddy contract" to the same address A on an Arbitrum chain. Since it's deployed at the same address, users can know that the L2 contract is the authorized "buddy" of the L1 contract on the Arbitrum chain.
For minting, the L1 contract is a standard ERC-20 contract which mints and burns tokens when requested by the L2 contract. It is paired with an ERC-20 contract in L2 which mints tokens based on whatever programmer provided minting facility is desired and burns tokens when they are withdrawn from the rollup chain. Given this base infrastructure, Arbitrum can support any smart contract based method for minting tokens in L2, and indeed we directly support Reddit's signature/claim based minting in L2.
Batch minting. What's better than a mint cookie? A whole batch! In addition to supporting Reddit’s current minting/claiming scheme, we built a second minting design, which we believe outperforms the signature/claim system in many scenarios.
In the current system, Reddit periodically issues signed statements to users, who then take those statements to the blockchain to claim their tokens. An alternative approach would have Reddit directly submit the list of users/amounts to the blockchain and distribute the tokens to the users without the signature/claim process.
To optimize the cost efficiency of this approach, we designed an application-specific compression scheme to minimize the size of the batch distribution list. We analyzed the data from Reddit's previous distributions and found that the data is highly compressible since token amounts are small and repeated, and addresses appear multiple times. Our function groups transactions by size, and replaces previously-seen addresses with a shorter index value. We wrote client code to compress the data, wrote a Solidity decompressing function, and integrated that function into Reddit’s contract running on Arbitrum.
When we ran the compression function on the previous Reddit distribution data, we found that we could compress batched minting data down to to 11.8 bytes per minting event (averaged over a 6-month trace of Reddit’s historical token grants)compared with roughly 174 bytes of on-chain data needed for the signature claim approach to minting (roughly 43 for an RLP-encoded null transaction + 65 for Reddit's signature + 65 for the user's signature + roughly 8 for the number of Points) .
The relative benefit of the two approaches with respect to on-chain call data cost depends on the percentage of users that will actually claim their tokens on chain. With the above figures, batch minting will be cheaper if roughly 5% of users redeem their claims. We stress that our compression scheme is not Arbitrum-specific and would be beneficial in any general-purpose smart contract platform.
8. Benchmarks and costs
In this section, we give the full costs of operating the Reddit contracts on an Arbitrum Rollup chain including the L1 gas costs for the Rollup chain, the costs of computation and storage for the L2 validators as well as the capital lockup requirements for staking.
Arbitrum Rollup is still on testnet, so we did not run mainnet benchmarks. Instead, we measured the L1 gas cost and L2 workload for Reddit operations on Arbitrum and calculated the total cost assuming current Ethereum gas prices. As noted below in detail, our measurements do not assume that Arbitrum is consuming the entire capacity of Ethereum. We will present the details of our model now, but for full transparency you can also play around with it yourself and adjust the parameters, by copying the spreadsheet found here.
Our cost model is based on measurements of Reddit’s contracts, running unmodified (except for the addition of a batch minting function) on Arbitrum Rollup on top of Ethereum.
On the distribution of transactions and frequency of assertions. Reddit's instructions specify the following minimum parameters that submissions should support:
Over a 5 day period, your scaling PoC should be able to handle:
  • 100,000 point claims (minting & distributing points)
  • 25,000 subscriptions
  • 75,000 one-off points burning
  • 100,000 transfers
We provide the full costs of operating an Arbitrum Rollup chain with this usage under the assumption that tokens are minted or granted to users in batches, but other transactions are uniformly distributed over the 5 day period. Unlike some other submissions, we do not make unrealistic assumptions that all operations can be submitted in enormous batches. We assume that batch minting is done in batches that use only a few percent on an L1 block’s gas, and that other operations come in evenly over time and are submitted in batches, with one batch every five minutes to keep latency reasonable. (Users are probably already waiting for L1 finality, which takes at least that long to achieve.)
We note that assuming that there are only 300,000 transactions that arrive uniformly over the 5 day period will make our benchmark numbers lower, but we believe that this will reflect the true cost of running the system. To see why, say that batches are submitted every five minutes (20 L1 blocks) and there's a fixed overhead of c bytes of calldata per batch, the cost of which will get amortized over all transactions executed in that batch. Assume that each individual transaction adds a marginal cost of t. Lastly assume the capacity of the scaling system is high enough that it can support all of Reddit's 300,000 transactions within a single 20-block batch (i.e. that there is more than c + 300,000*t byes of calldata available in 20 blocks).
Consider what happens if c, the per-batch overhead, is large (which it is in some systems, but not in Arbitrum). In the scenario that transactions actually arrive at the system's capacity and each batch is full, then c gets amortized over 300,000 transactions. But if we assume that the system is not running at capacity--and only receives 300,000 transactions arriving uniformly over 5 days-- then each 20-block assertion will contain about 200 transactions, and thus each transaction will pay a nontrivial cost due to c.
We are aware that other proposals presented scaling numbers assuming that 300,000 transactions arrived at maximum capacity and was executed in a single mega-transaction, but according to our estimates, for at least one such report, this led to a reported gas price that was 2-3 orders of magnitude lower than it would have been assuming uniform arrival. We make more realistic batching assumptions, and we believe Arbitrum compares well when batch sizes are realistic.
Our model. Our cost model includes several sources of cost:
  • L1 gas costs: This is the cost of posting transactions as calldata on the L1 chain, as well as the overhead associated with each batch of transactions, and the L1 cost of settling transactions in the Arbitrum protocol.
  • Validator’s staking costs: In normal operation, one validator will need to be staked. The stake is assumed to be 0.2% of the total value of the chain (which is assumed to be $1 per user who is eligible to claim points). The cost of staking is the interest that could be earned on the money if it were not staked.
  • Validator computation and storage: Every validator must do computation to track the chain’s processing of transactions, and must maintain storage to keep track of the contracts’ EVM storage. The cost of computation and storage are estimated based on measurements, with the dollar cost of resources based on Amazon Web Services pricing.
It’s clear from our modeling that the predominant cost is for L1 calldata. This will probably be true for any plausible rollup-based system.
Our model also shows that Arbitrum can scale to workloads much larger than Reddit’s nominal workload, without exhausting L1 or L2 resources. The scaling bottleneck will ultimately be calldata on the L1 chain. We believe that cost could be reduced substantially if necessary by clever encoding of data. (In our design any compression / decompression of L2 transaction calldata would be done by client software and L2 programs, never by an L1 contract.)
9. Status of Arbitrum Rollup
Arbitrum Rollup is live on Ethereum testnet. All of the code written to date including everything included in the Reddit demo is open source and permissively licensed under the Apache V2 license. The first testnet version of Arbitrum Rollup was released on testnet in February. Our current internal version, which we used to benchmark the Reddit contracts, will be released soon and will be a major upgrade.
Both the Arbitrum design as well as the implementation are heavily audited by independent third parties. The Arbitrum academic paper was published at USENIX Security, a top-tier peer-reviewed academic venue. For the Arbitrum software, we have engaged Trail of Bits for a security audit, which is currently ongoing, and we are committed to have a clean report before launching on Ethereum mainnet.
10. Reddit Universe Arbitrum Rollup Chain
The benchmarks described in this document were all measured using the latest internal build of our software. When we release the new software upgrade publicly we will launch a Reddit Universe Arbitrum Rollup chain as a public demo, which will contain the Reddit contracts as well as a Uniswap instance and a Connext Hub, demonstrating how Community Points can be integrated into third party apps. We will also allow members of the public to dynamically launch ecosystem contracts. We at Offchain Labs will cover the validating costs for the Reddit Universe public demo.
If the folks at Reddit would like to evaluate our software prior to our public demo, please email us at [email protected] and we'd be more than happy to provide early access.
11. Even more scaling: Arbitrum Sidechains
Rollups are an excellent approach to scaling, and we are excited about Arbitrum Rollup which far surpasses Reddit's scaling needs. But looking forward to Reddit's eventual goal of supporting hundreds of millions of users, there will likely come a time when Reddit needs more scaling than any Rollup protocol can provide.
While Rollups greatly reduce costs, they don't break the linear barrier. That is, all transactions have an on-chain footprint (because all calldata must be posted on-chain), albeit a far smaller one than on native Ethereum, and the L1 limitations end up being the bottleneck for capacity and cost. Since Ethereum has limited capacity, this linear use of on-chain resources means that costs will eventually increase superlinearly with traffic.
The good news is that we at Offchain Labs have a solution in our roadmap that can satisfy this extreme-scaling setting as well: Arbitrum AnyTrust Sidechains. Arbitrum Sidechains are similar to Arbitrum Rollup, but deviate in that they name a permissioned set of validators. When a chain’s validators agree off-chain, they can greatly reduce the on-chain footprint of the protocol and require almost no data to be put on-chain. When validators can't reach unanimous agreement off-chain, the protocol reverts to Arbitrum Rollup. Technically, Arbitrum Sidechains can be viewed as a hybrid between state channels and Rollup, switching back and forth as necessary, and combining the performance and cost that state channels can achieve in the optimistic case, with the robustness of Rollup in other cases. The core technical challenge is how to switch seamlessly between modes and how to guarantee that security is maintained throughout.
Arbitrum Sidechains break through this linear barrier, while still maintaining a high level of security and decentralization. Arbitrum Sidechains provide the AnyTrust guarantee, which says that as long as any one validator is honest and available (even if you don't know which one will be), the L2 chain is guaranteed to execute correctly according to its code and guaranteed to make progress. Unlike in a state channel, offchain progress does not require unanimous consent, and liveness is preserved as long as there is a single honest validator.
Note that the trust model for Arbitrum Sidechains is much stronger than for typical BFT-style chains which introduce a consensus "voting" protocols among a small permissioned group of validators. BFT-based protocols require a supermajority (more than 2/3) of validators to agree. In Arbitrum Sidechains, by contrast, all you need is a single honest validator to achieve guaranteed correctness and progress. Notice that in Arbitrum adding validators strictly increases security since the AnyTrust guarantee provides correctness as long as any one validator is honest and available. By contrast, in BFT-style protocols, adding nodes can be dangerous as a coalition of dishonest nodes can break the protocol.
Like Arbitrum Rollup, the developer and user experiences for Arbitrum Sidechains will be identical to that of Ethereum. Reddit would be able to choose a large and diverse set of validators, and all that they would need to guarantee to break through the scaling barrier is that a single one of them will remain honest.
We hope to have Arbitrum Sidechains in production in early 2021, and thus when Reddit reaches the scale that surpasses the capacity of Rollups, Arbitrum Sidechains will be waiting and ready to help.
While the idea to switch between channels and Rollup to get the best of both worlds is conceptually simple, getting the details right and making sure that the switch does not introduce any attack vectors is highly non-trivial and has been the subject of years of our research (indeed, we were working on this design for years before the term Rollup was even coined).
12. How Arbitrum compares
We include a comparison to several other categories as well as specific projects when appropriate. and explain why we believe that Arbitrum is best suited for Reddit's purposes. We focus our attention on other Ethereum projects.
Payment only Rollups. Compared to Arbitrum Rollup, ZK-Rollups and other Rollups that only support token transfers have several disadvantages:
  • As outlined throughout the proposal, we believe that the entire draw of Ethereum is in its rich smart contracts support which is simply not achievable with today's zero-knowledge proof technology. Indeed, scaling with a ZK-Rollup will add friction to the deployment of smart contracts that interact with Community Points as users will have to withdraw their coins from the ZK-Rollup and transfer them to a smart contract system (like Arbitrum). The community will be best served if Reddit builds on a platform that has built-in, frictionless smart-contract support.
  • All other Rollup protocols of which we are aware employ a centralized operator. While it's true that users retain custody of their coins, the centralized operator can often profit from censoring, reordering, or delaying transactions. A common misconception is that since they're non-custodial protocols, a centralized sequencer does not pose a risk but this is incorrect as the sequencer can wreak havoc or shake down users for side payments without directly stealing funds.
  • Sidechain type protocols can eliminate some of these issues, but they are not trustless. Instead, they require trust in some quorum of a committee, often requiring two-third of the committee to be honest, compared to rollup protocols like Arbitrum that require only a single honest party. In addition, not all sidechain type protocols have committees that are diverse, or even non-centralized, in practice.
  • Plasma-style protocols have a centralized operator and do not support general smart contracts.
13. Concluding Remarks
While it's ultimately up to the judges’ palate, we believe that Arbitrum Rollup is the bakeoff choice that Reddit kneads. We far surpass Reddit's specified workload requirement at present, have much room to optimize Arbitrum Rollup in the near term, and have a clear path to get Reddit to hundreds of millions of users. Furthermore, we are the only project that gives developers and users the identical interface as the Ethereum blockchain and is fully interoperable and tooling-compatible, and we do this all without any new trust assumptions or centralized components.
But no matter how the cookie crumbles, we're glad to have participated in this bake-off and we thank you for your consideration.
About Offchain Labs
Offchain Labs, Inc. is a venture-funded New York company that spun out of Princeton University research, and is building the Arbitrum platform to usher in the next generation of scalable, interoperable, and compatible smart contracts. Offchain Labs is backed by Pantera Capital, Compound VC, Coinbase Ventures, and others.
Leadership Team
Ed Felten
Ed Felten is Co-founder and Chief Scientist at Offchain Labs. He is on leave from Princeton University, where he is the Robert E. Kahn Professor of Computer Science and Public Affairs. From 2015 to 2017 he served at the White House as Deputy United States Chief Technology Officer and senior advisor to the President. He is an ACM Fellow and member of the National Academy of Engineering. Outside of work, he is an avid runner, cook, and L.A. Dodgers fan.
Steven Goldfeder
Steven Goldfeder is Co-founder and Chief Executive Officer at Offchain Labs. He holds a PhD from Princeton University, where he worked at the intersection of cryptography and cryptocurrencies including threshold cryptography, zero-knowledge proof systems, and post-quantum signatures. He is a co-author of Bitcoin and Cryptocurrency Technologies, the leading textbook on cryptocurrencies, and he has previously worked at Google and Microsoft Research, where he co-invented the Picnic signature algorithm. When not working, you can find Steven spending time with his family, taking a nature walk, or twisting balloons.
Harry Kalodner
Harry Kalodner is Co-founder and Chief Technology Officer at Offchain Labs where he leads the engineering team. Before the company he attended Princeton as a Ph.D candidate where his research explored economics, anonymity, and incentive compatibility of cryptocurrencies, and he also has worked at Apple. When not up at 3:00am writing code, Harry occasionally sleeps.
submitted by hkalodner to ethereum [link] [comments]

Wisdom Chian:AccountState

In the current block chain world, there are mainly two ways of record preservation, UTXO mode and Account mode. Bitcoin adopts UTXO model, Ethereum/EOS adopts Account model, and WisdomChian also adopts Account model. Today we will explain in detail why WisdomChian also adopted the account model.
Before introducing the UTXO model and the Account balance model, we have to first introduce the most important concepts and data structures in their two or even all block chain applications, that is, Block. The block chain is actually made up of a list of growing chains, which contains many records, that is, blocks.
📷
UTXO model
In the UTXO model, transactions only represent changes in the UTXO collection. The concept of accounts and balances is a higher abstraction on the UTXO collection. The concept of accounts and balances only exists in wallets. Let's look at some examples to understand the difference.
First, Bitcoin UTXO can not be partially expended. If a user wants to spend 0.5 Bitcoins, but he has 1 Bitcoins in his UTXO collection.He has to send half a Bitcoin to himself to get change at the same time as he sends half a Bitcoin to someone else. If he doesn't send it to himself, he will pay 0.5 Bitcoin to the miner.
📷
Second, Bitcoin itself does not store account balances. Users only need to sign these UTXO with the private key to spend Bitcoins. The digital wallet makes the Bitcoin blockchain look like it has the function of user account balance. This is not the case.
How visual wallets work in Bitcoin
Bitcoin's UTXO system works well, partly because digital wallets can help to accomplish most of the work related to transactions. Including but not limited to:
a) Processing UTXO
b) Storage key
c) Set transaction costs
d) Provide change address
e) Aggregated UTXO (display available, pending and total balance)
Trading in the UTXO model is similar to paper currency. Each account shows how much money it has by calculating the sum of all the paper money (UTXO) in the wallet (corresponding to the wallet address). When we want to spend money, we need to use one or more UTXO with enough cost and we may get a new UTXO. Each UTXO can only be used once, because once UTXO is expended, it will be deleted from the UTXO pool.
All in all, we know that:
Bitcoin blockchain does not store account balance
Bitcoin Wallet Holds secret key
If it is included in the transaction, it will cost the entire UTXO (in some cases, the change is in the form of a new UTXO).
WisdomChain
WisdomChain adopts the same Account transaction structure as ETH. Unlike Ethernet, there are two very different data in Ethernet: permanent data and temporary data. An example of permanent data is a transaction, which, when fully confirmed, will be recorded in the transactiontrie and will never change. An example of temporary data is the balance on a specific Ethereum account address. The balance of the account address is stored in statetrie and will be changed whenever the transaction of the particular account changes. In Ethereum, permanent data (such as mined transactions) and temporary data (such as account balances) are stored separately. Ethereum uses trie data structure to manage data.
And about WisdomChain, when the transaction is initiated, the node will calculate the status information after transaction based on the current state information and transaction content in the virtual machine, and store the relevant hash value of the state information along with the transaction. When the transaction is packaged by a miner, the remaining nodes store data on the Merkletrees to ensure that the state information of their nodes and other nodes in the network is consistent.
So WisdomChain's records are kept like banks. Similar to using ATM / debit cards, banks track the amount of each debit card. When we need to spend money, the bank checks its records to make sure we have enough balance before confirming the transaction.
Of course, WisdomChain uses the Account transaction structure, which inevitably leads to the problems of the Account transaction structure itself. First, there is no dependency between Account model transactions, so the problem of replay attacks needs to be solved. Second, for the realization of lightning network, Plasma and so on, users need more complex Proof mechanism to produce evidence. The state transfer of sub chains to the main chain requires more complicated protocols.
submitted by Frosty_Gene_7770 to u/Frosty_Gene_7770 [link] [comments]

Weekly Wrap: This Week In Chainlink August 31 - September 6

Weekly Wrap: This Week In Chainlink August 31 - September 6

Chainlink Hackathon - September 7th - 27th!

We've already received over 300 developer signups from over 40 countries for the Chainlink Hackathon. Get ready to join one of the biggest blockchain developer events of the year and build the next top DeFi dApp with support from our world-class mentors and a chance to win over $40K prizes.

Announcements and Integrations 🎉

@synthetix_io is now fully #PoweredByChainlink, switching all its cryptocurrency and index synths to Chainlink's Price Reference Data due to its high-quality data, decentralization, & ability to scale the platform to secure more value.

Bitcoin smart contract platform @RSKsmart has successfully integrated Chainlink oracles via its @rif_os technology. This allows RSK developers to build smart contract applications connected to real-world data that are secured by the Bitcoin blockchain.

@01node is a new node operator supporting Chainlink's live Price Reference Contracts. As operators experienced in securing millions of USD for PoS chains, they bring added decentralization by running their own physical servers that further minimize cloud dependencies.

Decentralized lending protocol @useteller is live on testnet consuming Chainlink's Price Reference Data for ETH/USD, BTC/USD & LINK/USD. These price feeds help Teller ensure that all APR calculations for unsecured loans reflect real market conditions.

Telecommunications blockchain @QLCchain is integrating Chainlink to make its aggregated data available to smart contracts. This data can power new DeFi applications like automating payments between telco providers, tokenizing telco infrastructure & more.

Social reputation score provider @DecentrNet is integrating Chainlink to allow users to share their data in #DeFi dApps to obtain better interest & collateralization rates. Chainlink also helps Decentr make this key data available across any blockchain.

@opium_network is using Chainlink's USDT/USD Price Reference Data live on mainnet to launch the first credit default swap on a centralized stablecoin—USDT. This is another example of how Chainlink oracles are powering innovative DeFi products.

Blockchain card game @EtherLegends will use Chainlink VRF to power their random distribution of NFT-backed end-of-season rewards. These rare items will be awarded to top players at the end of the ongoing season with verifiable proof of fair distribution.

We’re thrilled to award a grant to @ensdomains from the Chainlink Community Grant Program: https://blog.chain.link/introducing-the-chainlink-community-grant-program/…, supporting them in developing human-readable names for oracle contracts, making Chainlink easily accessible to even more smart contract devs

Featured Videos & Educational Pieces 🎥

DeFi is disrupting finance and crypto by moving beyond tokens and wallets into sophisticated smart contract applications that allow p2p lending, liquidity mining, synthetic assets, derivatives, and more. DeFi pioneers Sergey Nazarov (Chainlink), Andre Cronje (yEarn), Stani Kulechoiv (Aave), and Kain Warwick (Synthetix) come together to explain DeFi’s remarkable growth on Ethereum, expansion into new markets, and the impact of live infrastructure, especially decentralized oracles, on DeFi protocols.

Chainlink Labs Chief Scientist Dr. Ari Jules gives a #SmartCon Keynote explaining how DECO helps Chainlink oracles liberate more web data for smart contracts, including identity records, financial data, accredited investor confirmation, supply chain logistics, and more. Using DECO to make this data available on-chain allows blockchains to enhance many enterprise use cases today while still retaining the key property of data confidentiality.

Chainlink-powered decentralized oracles provide smart contracts with definitive truth about the validity of real-world data. In this Keynote, Sergey Nazarov explains how Chainlink is using its secure and reliable oracles to expand the addressable market of smart contract applications into the trillions, thanks to opening up blockchain applications in DeFi, CeFi, Fintech, Web 2.0, and enterprise systems. He also discusses Chainlink’s new DECO acquisition and how it opens up access to web data for smart contracts while preserving data security and confidentiality.

Other SmartCon talks now posted include:

Ecosystem & Community Celebrations 👏


Upcoming Events 📅


Are you interested in hosting your own meetup? Apply to become a Chainlink Community Advocate today: https://events.chain.link/advocate

Chainlink Labs is hiring to build Chainlink’s network: Check out these open roles 👩‍💼

View all open roles at https://careers.smartcontract.com
Are there other community content and celebrations that we missed? Post them in the comments below! ⤵️
submitted by linkedkeenan to Chainlink [link] [comments]

Bittrex Review: One of the First Crypto Exchanges| Final Part

Bittrex Review: One of the First Crypto Exchanges| Final Part

4. Transaction Fees

Transferring funds across the blockchain and withdrawing them from Bittrex costs a fee for customers, with the rate unique for every coin.
Bittrex Global charges no commission for deposits. Please keep in mind that some tokens or cash may be required to perform a transaction by a crypto coin or token’s community. Bittrex crypto exchange can’t keep away from it.
Every token or coin has a blockchain transaction fee that is built in it, and the Bittrex fee is a small amount to cover this charge. You can view the fee percentage for every coin or token by clicking Withdrawal near to the coin. There you will see a transaction fee you will be charged for withdrawing a specific coin or token.
In the example below, the withdrawal fee amounts to 1 USDT
https://preview.redd.it/209uz2p64zh51.jpg?width=974&format=pjpg&auto=webp&s=9ee9355c4d75d41931a3073b8a230bd1ffddaf08
The transaction fee for Bitcoin came to 0.00050000 BTC
https://preview.redd.it/vh7zbe884zh51.jpg?width=974&format=pjpg&auto=webp&s=e6293650b46a7e0ba661478bd2467471b8b213f9

5. Trading Fees

The fee schedule below provides the applicable rate based on the account's 30-Day Volume and if the order is a maker or taker.
Bittrex Global Fee30 Day Volume (USD)MakerTaker$0k - $50k0.2%0.2%$50k - $1M0.12%0.18%$1M - $10M0.05%0.15%$10M - $60M0.02%0.1%$60M+0%0.08%>$100MContact TAM representative
Trading expenses are incurred when an order is prepared by means of the Bittrex worldwide matching engine. While an order is being executed, the purchaser and the vendor are charged a rate primarily based on the order’s amount. The fee charged by Bittrex exchange is calculated by the formula amount * buy rate * fee. There aren't any charges for placing an order which is not being executed so far. Any portion of an unfinished order will be refunded completely upon order cancelation.
Prices vary depending on the currency pair, monthly trade volume, and whether the order is a maker or taker. Bittrex reserves the right to alternate fee quotes at any time, including offering various discounts and incentive packages.

Monthly Volume

Your buying and selling volume affects the fee you pay for every order. Our expenses are built to encourage customers who ensure liquidity in the Bittrex crypto exchange markets. Your buying and selling charges are reduced according to your trade volume for the last 30 years in dollars.
Bittrex calculates the 30-day value every day, updating every account's volume calculation and buying and selling charge between of 12:30 AM UTC and 01:30 AM UTC every day.
You can check your monthly trade volume by logging in and opening Account > My Activity.
https://preview.redd.it/n1djh2ob4zh51.jpg?width=974&format=pjpg&auto=webp&s=2eebb9c9ac63de207c4dd2e49bc45aeb53a8dec8

6. Withdrawing Funds

Withdrawing any type of funds is likewise simple. You can profit by buying and selling Bitcoin, Ether, or any other cryptocurrency.
You determine the crypto address—to which the amount will be credited—and the transaction amount. The withdrawal fee will be automatically calculated and shown right away.
After confirming the transaction, the finances will be sent to the specified addresses and all that you need to do is to wait for the community to confirm the transaction.
If the 2FA is enabled, then the user receives a special code (via SMS or application) to confirm the withdrawal.

7. How to Trade on Bittrex Global

Currency selling and buying transactions are performed using the Sell and Buy buttons, accordingly.
To begin with, the dealer selects a currency pair and sees a graph of the rate dynamics and different values for the pair.
Below the chart, there is a section with orders where the user can buy or sell a virtual asset.
To create an order, you just need to specify the order type, price, and quantity. And do not forget about the 0.25% trade fee whatever the quantity.
For optimum profit, stay with liquid assets as they can be quickly sold at a near-market rate effective at the time of the transaction. Bittrex offers no referral program; so buying and selling crypto is the easiest way to earn.
https://preview.redd.it/hopm6fih4zh51.jpg?width=1302&format=pjpg&auto=webp&s=68c0aaae86f64c3e6b9d351c3df2a9c331f94038

Order Types

Bittrex helps you alternate Limit and Stop-Limit orders.
A limit order or a simple limit order is performed when the asset fee reaches—or even exceeds—the price the trader seeks. To execute such an order, it is required that there's a counter market order on the platform that has the identical fee as the limit order.

Differences between Limit Order and Stop Limit Order

A stop limit order is a mixture of a stop limit order and a limit order. In such an application, charges are indicated—a stop charge and the limit.

Stop Limit Order Purpose

https://preview.redd.it/hlxvy9ti4zh51.jpg?width=1141&format=pjpg&auto=webp&s=064a77459a4dcb4555a885cbc56629aae10fc38b

Trade Terminal

Let’s discuss how you could trade conveniently with our service.
The key features include a user-friendly interface and precise currency pair statistics (timeframe graphs, network data, trade volumes, and so forth).
The platform’s top-notch advantage is handy, easy-to-analyze, customizable charts. There is also a column for quick switching between currency pairs and an order panel beneath the fee chart. Such an all-encompassing visual solution helps compare orders efficiently and in one place.
You can use the terminal in a day or night mode; when in the night mode, the icon in the upper-right corner changes and notice the Bittrex trading terminal in night mode is displayed. The main menu consists of 4 sections: Markets, Orders, Wallets, Settings.
Markets are the trade section. Bittrex allows handling over 270 currency pairs.
Orders. To see all open orders, go to OrdersOpen.
To see completed orders, go to OrdersCompleted.
Wallets. The Wallets tab displays many wallets for all cryptocurrencies supported by the exchange and the current balance of each of them.
After refilling the balance or creating a buy or sale order, you will see all actions in the section. Bittrex allows creating a separate wallet for every coin. Additionally, you can see how the coin price has changed, in terms of percentage, throughout the day.
Here’s what you can also do with your wallets:
  • Hide zero balances: hide currencies with zero balance
  • Green and red arrows: replenish balance/withdraw funds
  • Find: search for a cryptocurrency
The Settings section helps manage your account, verification, 2FA, password modification, API connection, and many more.

How to Sell

The process of selling crypto assets follows the same algorithm. The only difference is that after choosing the exchange direction, you need to initiate a Sell order. All the rest is similar: you select the order type, specify the quantity and price, and click Sell *Currency Name* (Sell Bitcoin in our case).
If you scroll the screen, the entire history of trades and orders will be displayed below.

LONG and SHORT

You can make a long deal or a short deal. Your choice depends on whether you expect an asset to fall or rise in price.
Long positions are a classic trading method. It concerns purchasing an asset to profit when its value increases. Long positions are carried out through any brokers and do not require a margin account. In this case, the trader’s account must have enough funds to cover the transaction.
Losses in a long position are considered to be limited; no matter when the trade starts, the price will not fall below zero with all possible errors. Short positions, in contrast, are used to profit from a falling market. A trader buys a financial instrument from a broker and sells it. After the price reaches the target level, the trader buys back the assets or buys them to pay off the initial debt to the broker.
A short position yields profit if the price falls, and it is considered unprofitable the price matches the asset value. Performing a short order requires a margin account as a trader borrows valuable assets from a broker to complete a transaction. Long transactions help gain from market growth; short from a market decline.

Trade via API

Bittrex also supports algorithmic trading through extensive APIs (application programming interface), which allows you to automate the trading process using third-party services.
To create an API key, the user must enable the two-factor authentication 2FA, verify their account, and log in to the site within 3 minutes.
If all the requirements of the system are fulfilled, you can proceed to generate the API key. Log in to your Bittrex account, click Settings. Find API Keys. Click Add new key (Create a new key).
Toggle on / off settings for READ INFO, TRADE, or WITHDRAW, depending on what functionality you want to use for our API key.
Click Save and enter the 2FA code from the authenticator → Confirm.
The secret key will be displayed only once and will disappear after the page is refreshed. Make sure you saved it!
To delete an API key, click X in the right corner for the key that you want to delete, then click Save, enter the 2FA code from the authenticator and click Confirm.

Bittrex Bot, a Trader’s Assistant

Robotized programs that appeared sometimes after the appearance of cryptocurrency exchanges save users from monotonous work and allow automating the trading process.
Bots for trading digital money work like all the other bots: they perform mechanical trading according to the preset parameters.
Currently, one of Bittrex’s most popular trading bots is Bittrex Flash Crash Buyer Bot that helps traders profit from altcoin volatility without missing the right moment.
The program monitors all the market changes in the market every second; also, it even can place an order in advance. The Bittrex bot can handle a stop loss—to sell a certain amount of currency when the rate changes in a favorable direction and reaches a certain level.

8. Secure Platform

Bittrex Global employs the most reliable and effective security technologies available. There are many cases of theft, fraud. It is no coincidence that the currency is compared to the Wild West, especially if we compare the 1800s when cowboys rushed to the West Coast of America to earn and start something new in a place that had no rules.
Cryptocurrency is still wild. One can earn and lose money fast. But Bittrex has a substantial security policy thanks to the team’s huge experience in security and development for companies such as Microsoft, Amazon, Qualys, and Blackberry.
The system employs an elastic, multi-stage holding strategy to ensure that the majority of funds are kept in cold storage for extra safety.
Bittrex Global also enables the two-factor authentication for all users and provides a host of additional security features to provide multiple layers of protection.
Bittrex cold wallet: https://bitinfocharts.com/en/bitcoin/address/385cR5DM96n1HvBDMzLHPYcw89fZAXULJP

How to Pass IP Verification

To ensure higher security of your Bittrex Global account, the system requires all users to approve each new IP address through an email confirmation. This IP verification procedure is required every time you attempt to log in from a new IP Address.
Confirming your IP address.
https://preview.redd.it/rnl730z75zh51.jpg?width=971&format=pjpg&auto=webp&s=bd13fba0a844ab01cadc40003f5ea5de7439cbf9
The new IP address must be confirmed from the device that you are using to access Bittrex Global. This means that you must follow the CLICK HERE TO LOGIN link in an email on the device that you want to use to access your account.
https://preview.redd.it/tq9eje795zh51.jpg?width=607&format=pjpg&auto=webp&s=160b2ebfd1b9e0a287d4d2b99017dd45518ef2f7
To ensure even more security, Bittrex Global supports whitelisting of IP addresses and Crypto addresses. These two features can help protect the account in the event of credentials or API key loss.

How to Add IP Address to Whitelist

By setting one or more whitelisted addresses, you are telling Bittrex Global to only authorize trades or withdrawals from those IPs. This concerns both the global.bittrex.com web interface and API-based trades or withdrawals. To do this, click IP Whitelist in Site Settings.
https://preview.redd.it/m2klahja5zh51.jpg?width=971&format=pjpg&auto=webp&s=7cfb941ecb5284973baed1a2b0301459e36a0ab6

How to Add Crypto Address to Whitelist

By setting a withdrawal address, you are telling Bittrex Global to authorize withdrawals only to that address.
This concerns both the global.bittrex.com web interface and API based withdrawals.
Note that when opting into this feature, you need to specify a withdrawal address would like to withdraw funds from for every currency. To do this, click Withdrawal Whitelist in the Site Settings section. The example below shows a BTC address.
https://preview.redd.it/yrror8zd5zh51.jpg?width=974&format=pjpg&auto=webp&s=179dd7da9f6e59d3fca628cbfcd2c3962562f911

Afterword

Bittrex Global is a reliable and advanced platform for trading digital assets with a respected reputation, long history, and active market presence and development nowadays. The exchange is eligible to be used globally, including the US and its territories.
The legal component of Bittrex Global is one of the most legitimate among numerous crypto-asset exchanges.
The Bittrex team has had great ambitions and managed to deliver promises and more. The exchange staff comprises forward-thinking and exceptional individuals whose success is recognized in the traditional business and blockchain sector.
Bittrex's purpose is to be the driving force in the blockchain revolution, expanding the application, importance, and accessibility of this game-changing technology worldwide.
The exchange fosters new and innovative blockchain and related projects that could potentially change the way money and assets are managed globally.
Alongside innovation, safety will always be the main priority of the company. The platform utilizes the most reliable and effective practices and available technologies to protect user accounts. Bittrex customers have always primarily been those who appreciate the highest degree of security.
Because of the way the Bittrex trading platform is designed, it can easily scale to always provide instant order execution for any number of new customers.
Bittrex supports algorithmic trading and empowers its customers with extensive APIs for more automated and profitable trading.
One of the common features which is not available on the exchange is margin trading. No leverage used however adds up to the exchange's stability and prevents fast money seekers and risky traders from entering the exchange.
Bittrex is a force of the blockchain revolution and an important entity of the emerging sector.
The full version
First part
Second part
submitted by mPrestige to revain_org [link] [comments]

How To End The Cryptocurrency Exchange "Wild West" Without Crippling Innovation


In case you haven't noticed the consultation paper, staff notice, and report on Quadriga, regulators are now clamping down on Canadian cryptocurrency exchanges. The OSC and other regulatory bodies are still interested in industry feedback. They have not put forward any official regulation yet. Below are some ideas/insights and a proposed framework.



Many of you have limited time to read the full proposal, so here are the highlights:

Offline Multi-Signature

Effective standards to prevent both internal and external theft. Exchange operators are trained and certified, and have a legal responsibility to users.

Regular Transparent Audits

Provides visibility to Canadians that their funds are fully backed on the exchange, while protecting privacy and sensitive platform information.

Insurance Requirements

Establishment of basic insurance standards/strategy, to expand over time. Removing risk to exchange users of any hot wallet theft.


Background and Justifications


Cold Storage Custody/Management
After reviewing close to 100 cases, all thefts tend to break down into more or less the same set of problems:
• Funds stored online or in a smart contract,
• Access controlled by one person or one system,
• 51% attacks (rare),
• Funds sent to the wrong address (also rare), or
• Some combination of the above.
For the first two cases, practical solutions exist and are widely implemented on exchanges already. Offline multi-signature solutions are already industry standard. No cases studied found an external theft or exit scam involving an offline multi-signature wallet implementation. Security can be further improved through minimum numbers of signatories, background checks, providing autonomy and legal protections to each signatory, establishing best practices, and a training/certification program.
The last two transaction risks occur more rarely, and have never resulted in a loss affecting the actual users of the exchange. In all cases to date where operators made the mistake, they've been fully covered by the exchange platforms.
• 51% attacks generally only occur on blockchains with less security. The most prominent cases have been Bitcoin Gold and Ethereum Classic. The simple solution is to enforce deposit limits and block delays such that a 51% attack is not cost-effective.
• The risk of transactions to incorrect addresses can be eliminated by a simple test transaction policy on large transactions. By sending a small amount of funds prior to any large withdrawals/transfers as a standard practice, the accuracy of the wallet address can be validated.
The proposal covers all loss cases and goes beyond, while avoiding significant additional costs, risks, and limitations which may be associated with other frameworks like SOC II.

On The Subject of Third Party Custodians
Many Canadian platforms are currently experimenting with third party custody. From the standpoint of the exchange operator, they can liberate themselves from some responsibility of custody, passing that off to someone else. For regulators, it puts crypto in similar categorization to oil, gold, and other commodities, with some common standards. Platform users would likely feel greater confidence if the custodian was a brand they recognized. If the custodian was knowledgeable and had a decent team that employed multi-sig, they could keep assets safe from internal theft. With the right protections in place, this could be a great solution for many exchanges, particularly those that lack the relevant experience or human resources for their own custody systems.
However, this system is vulnerable to anyone able to impersonate the exchange operators. You may have a situation where different employees who don't know each other that well are interacting between different companies (both the custodian and all their customers which presumably isn't just one exchange). A case study of what can go wrong in this type of environment might be Bitpay, where the CEO was tricked out of 5000 bitcoins over 3 separate payments by a series of emails sent legitimately from a breached computer of another company CEO. It's also still vulnerable to the platform being compromised, as in the really large $70M Bitfinex hack, where the third party Bitgo held one key in a multi-sig wallet. The hacker simply authorized the withdrawal using the same credentials as Bitfinex (requesting Bitgo to sign multiple withdrawal transactions). This succeeded even with the use of multi-sig and two heavily security-focused companies, due to the lack of human oversight (basically, hot wallet). Of course, you can learn from these cases and improve the security, but so can hackers improve their deception and at the end of the day, both of these would have been stopped by the much simpler solution of a qualified team who knew each other and employed multi-sig with properly protected keys. It's pretty hard to beat a human being who knows the business and the typical customer behaviour (or even knows their customers personally) at spotting fraud, and the proposed multi-sig means any hacker has to get through the scrutiny of 3 (or more) separate people, all of whom would have proper training including historical case studies.
There are strong arguments both for and against using use of third party custodians. The proposal sets mandatory minimum custody standards would apply regardless if the cold wallet signatories are exchange operators, independent custodians, or a mix of both.

On The Subject Of Insurance
ShakePay has taken the first steps into this new realm (congratulations). There is no question that crypto users could be better protected by the right insurance policies, and it certainly feels better to transact with insured platforms. The steps required to obtain insurance generally place attention in valuable security areas, and in this case included a review from CipherTrace. One of the key solutions in traditional finance comes from insurance from entities such as the CDIC.
However, historically, there wasn't found any actual insurance payout to any cryptocurrency exchange, and there are notable cases where insurance has not paid. With Bitpay, for example, the insurance agent refused because the issue happened to the third party CEO's computer instead of anything to do with Bitpay itself. With the Youbit exchange in South Korea, their insurance claim was denied, and the exchange ultimately ended up instead going bankrupt with all user's funds lost. To quote Matt Johnson in the original Lloyd's article: “You can create an insurance policy that protects no one – you know there are so many caveats to the policy that it’s not super protective.”
ShakePay's insurance was only reported to cover their cold storage, and “physical theft of the media where the private keys are held”. Physical theft has never, in the history of cryptocurrency exchange cases reviewed, been reported as the cause of loss. From the limited information of the article, ShakePay made it clear their funds are in the hands of a single US custodian, and at least part of their security strategy is to "decline[] to confirm the custodian’s name on the record". While this prevents scrutiny of the custodian, it's pretty silly to speculate that a reasonably competent hacking group couldn't determine who the custodian is. A far more common infiltration strategy historically would be social engineering, which has succeeded repeatedly. A hacker could trick their way into ShakePay's systems and request a fraudulent withdrawal, impersonate ShakePay and request the custodian to move funds, or socially engineer their way into the custodian to initiate the withdrawal of multiple accounts (a payout much larger than ShakePay) exploiting the standard procedures (for example, fraudulently initiating or override the wallet addresses of a real transfer). In each case, nothing was physically stolen and the loss is therefore not covered by insurance.
In order for any insurance to be effective, clear policies have to be established about what needs to be covered. Anything short of that gives Canadians false confidence that they are protected when they aren't in any meaningful way. At this time, the third party insurance market does not appear to provide adequate options or coverage, and effort is necessary to standardize custody standards, which is a likely first step in ultimately setting up an insurance framework.
A better solution compared to third party insurance providers might be for Canadian exchange operators to create their own collective insurance fund, or a specific federal organization similar to the CDIC. Such an organization would have a greater interest or obligation in paying out actual cases, and that would be it's purpose rather than maximizing it's own profit. This would be similar to the SAFU which Binance has launched, except it would cover multiple exchanges. There is little question whether the SAFU would pay out given a breach of Binance, and a similar argument could be made for a insurance fund managed by a collective of exchange operators or a government organization. While a third party insurance provider has the strong market incentive to provide the absolute minimum coverage and no market incentive to payout, an entity managed by exchange operators would have incentive to protect the reputation of exchange operators/the industry, and the government should have the interest of protecting Canadians.

On The Subject of Fractional Reserve
There is a long history of fractional reserve failures, from the first banks in ancient times, through the great depression (where hundreds of fractional reserve banks failed), right through to the 2008 banking collapse referenced in the first bitcoin block. The fractional reserve system allows banks to multiply the money supply far beyond the actual cash (or other assets) in existence, backed only by a system of debt obligations of others. Safely supporting a fractional reserve system is a topic of far greater complexity than can be addressed by a simple policy, and when it comes to cryptocurrency, there is presently no entity reasonably able to bail anyone out in the event of failure. Therefore, this framework is addressed around entities that aim to maintain 100% backing of funds.
There may be some firms that desire but have failed to maintain 100% backing. In this case, there are multiple solutions, including outside investment, merging with other exchanges, or enforcing a gradual restoration plan. All of these solutions are typically far better than shutting down the exchange, and there are multiple cases where they've been used successfully in the past.

Proof of Reserves/Transparency/Accountability
Canadians need to have visibility into the backing on an ongoing basis.
The best solution for crypto-assets is a Proof of Reserve. Such ideas go back all the way to 2013, before even Mt. Gox. However, no Canadian exchange has yet implemented such a system, and only a few international exchanges (CoinFloor in the UK being an example) have. Many firms like Kraken, BitBuy, and now ShakePay use the Proof of Reserve term to refer to lesser proofs which do not actually cryptographically prove the full backing of all user assets on the blockchain. In order for a Proof of Reserve to be effective, it must actually be a complete proof, and it needs to be understood by the public that is expected to use it. Many firms have expressed reservations about the level of transparency required in a complete Proof of Reserve (for example Kraken here). While a complete Proof of Reserves should be encouraged, and there are some solutions in the works (ie TxQuick), this is unlikely to be suitable universally for all exchange operators and users.
Given the limitations, and that firms also manage fiat assets, a more traditional audit process makes more sense. Some Canadian exchanges (CoinSquare, CoinBerry) have already subjected themselves to annual audits. However, these results are not presently shared publicly, and there is no guarantee over the process including all user assets or the integrity and independence of the auditor. The auditor has been typically not known, and in some cases, the identity of the auditor is protected by a NDA. Only in one case (BitBuy) was an actual report generated and publicly shared. There has been no attempt made to validate that user accounts provided during these audits have been complete or accurate. A fraudulent fractional exchange, or one which had suffered a breach they were unwilling to publicly accept (see CoinBene), could easily maintain a second set of books for auditors or simply exclude key accounts to pass an individual audit.
The proposed solution would see a reporting standard which includes at a minimum - percentage of backing for each asset relative to account balances and the nature of how those assets are stored, with ownership proven by the auditor. The auditor would also publicly provide a "hash list", which they independently generate from the accounts provided by the exchange. Every exchange user can then check their information against this public "hash list". A hash is a one-way form of encryption, which fully protects the private information, yet allows anyone who knows that information already to validate that it was included. Less experienced users can take advantage of public tools to calculate the hash from their information (provided by the exchange), and thus have certainty that the auditor received their full balance information. Easy instructions can be provided.
Auditors should be impartial, their identities and process public, and they should be rotated so that the same auditor is never used twice in a row. Balancing the cost of auditing against the needs for regular updates, a 6 month cycle likely makes the most sense.

Hot Wallet Management
The best solution for hot wallets is not to use them. CoinBerry reportedly uses multi-sig on all withdrawals, and Bitmex is an international example known for their structure devoid of hot wallets.
However, many platforms and customers desire fast withdrawal processes, and human validation has a cost of time and delay in this process.
A model of self-insurance or separate funds for hot wallets may be used in these cases. Under this model, a platform still has 100% of their client balance in cold storage and holds additional funds in hot wallets for quick withdrawal. Thus, the risk of those hot wallets is 100% on exchange operators and not affecting the exchange users. Since most platforms typically only have 1%-5% in hot wallets at any given time, it shouldn't be unreasonable to build/maintain these additional reserves over time using exchange fees or additional investment. Larger withdrawals would still be handled at regular intervals from the cold storage.
Hot wallet risks have historically posed a large risk and there is no established standard to guarantee secure hot wallets. When the government of South Korea dispatched security inspections to multiple exchanges, the results were still that 3 of them got hacked after the inspections. If standards develop such that an organization in the market is willing to insure the hot wallets, this could provide an acceptable alternative. Another option may be for multiple exchange operators to pool funds aside for a hot wallet insurance fund. Comprehensive coverage standards must be established and maintained for all hot wallet balances to make sure Canadians are adequately protected.

Current Draft Proposal

(1) Proper multi-signature cold wallet storage.
(a) Each private key is the personal and legal responsibility of one person - the “signatory”. Signatories have special rights and responsibilities to protect user assets. Signatories are trained and certified through a course covering (1) past hacking and fraud cases, (2) proper and secure key generation, and (3) proper safekeeping of private keys. All private keys must be generated and stored 100% offline by the signatory. If even one private keys is ever breached or suspected to be breached, the wallet must be regenerated and all funds relocated to a new wallet.
(b) All signatories must be separate background-checked individuals free of past criminal conviction. Canadians should have a right to know who holds their funds. All signing of transactions must take place with all signatories on Canadian soil or on the soil of a country with a solid legal system which agrees to uphold and support these rules (from an established white-list of countries which expands over time).
(c) 3-5 independent signatures are required for any withdrawal. There must be 1-3 spare signatories, and a maximum of 7 total signatories. The following are all valid combinations: 3of4, 3of5, 3of6, 4of5, 4of6, 4of7, 5of6, or 5of7.
(d) A security audit should be conducted to validate the cold wallet is set up correctly and provide any additional pertinent information. The primary purpose is to ensure that all signatories are acting independently and using best practices for private key storage. A report summarizing all steps taken and who did the audit will be made public. Canadians must be able to validate the right measures are in place to protect their funds.
(e) There is a simple approval process if signatories wish to visit any country outside Canada, with a potential whitelist of exempt countries. At most 2 signatories can be outside of aligned jurisdiction at any given time. All exchanges would be required to keep a compliant cold wallet for Canadian funds and have a Canadian office if they wish to serve Canadian customers.
(2) Regular and transparent solvency audits.
(a) An audit must be conducted at founding, after 3 months of operation, and at least once every 6 months to compare customer balances against all stored cryptocurrency and fiat balances. The auditor must be known, independent, and never the same twice in a row.
(b) An audit report will be published featuring the steps conducted in a readable format. This should be made available to all Canadians on the exchange website and on a government website. The report must include what percentage of each customer asset is backed on the exchange, and how those funds are stored.
(c) The auditor will independently produce a hash of each customer's identifying information and balance as they perform the audit. This will be made publicly available on the exchange and government website, along with simplified instructions that each customer can use to verify that their balance was included in the audit process.
(d) The audit needs to include a proof of ownership for any cryptocurrency wallets included. A satoshi test (spending a small amount) or partially signed transaction both qualify.
(e) Any platform without 100% reserves should be assessed on a regular basis by a government or industry watchdog. This entity should work to prevent any further drop, support any private investor to come in, or facilitate a merger so that 100% backing can be obtained as soon as possible.
(3) Protections for hot wallets and transactions.
(a) A standardized list of approved coins and procedures will be established to constitute valid cold storage wallets. Where a multi-sig process is not natively available, efforts will be undertaken to establish a suitable and stable smart contract standard. This list will be expanded and improved over time. Coins and procedures not on the list are considered hot wallets.
(b) Hot wallets can be backed by additional funds in cold storage or an acceptable third-party insurance provider with a comprehensive coverage policy.
(c) Exchanges are required to cover the full balance of all user funds as denominated in the same currency, or double the balance as denominated in bitcoin or CAD using an established trading rate. If the balance is ever insufficient due to market movements, the firm must rectify this within 24 hours by moving assets to cold storage or increasing insurance coverage.
(d) Any large transactions (above a set threshold) from cold storage to any new wallet addresses (not previously transacted with) must be tested with a smaller transaction first. Deposits of cryptocurrency must be limited to prevent economic 51% attacks. Any issues are to be covered by the exchange.
(e) Exchange platforms must provide suitable authentication for users, including making available approved forms of two-factor authentication. SMS-based authentication is not to be supported. Withdrawals must be blocked for 48 hours in the event of any account password change. Disputes on the negligence of exchanges should be governed by case law.

Steps Forward

Continued review of existing OSC feedback is still underway. More feedback and opinions on the framework and ideas as presented here are extremely valuable. The above is a draft and not finalized.
The process of further developing and bringing a suitable framework to protect Canadians will require the support of exchange operators, legal experts, and many others in the community. The costs of not doing such are tremendous. A large and convoluted framework, one based on flawed ideas or implementation, or one which fails to properly safeguard Canadians is not just extremely expensive and risky for all Canadians, severely limiting to the credibility and reputation of the industry, but an existential risk to many exchanges.
The responsibility falls to all of us to provide our insight and make our opinions heard on this critical matter. Please take the time to give your thoughts.
submitted by azoundria2 to QuadrigaInitiative [link] [comments]

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