submitted by sidhujag to ethereum [link] [comments]
We are excited to participate and present Syscoin Platform's ideal characteristics and capabilities towards a well-rounded Reddit Community Points solution!
Our scaling solution for Reddit Community Points involves 2-way peg interoperability with Ethereum. This will provide a scalable token layer built specifically for speed and high volumes of simple value transfers at a very low cost, while providing sovereign ownership and onchain finality.
Token transfers scale by taking advantage of a globally sorting mempool that provides for probabilistically secure assumptions of “as good as settled”. The opportunity here for token receivers is to have an app-layer interactivity on the speed/security tradeoff (99.9999% assurance within 10 seconds). We call this Z-DAG, and it achieves high-throughput across a mesh network topology presently composed of about 2,000 geographically dispersed full-nodes. Similar to Bitcoin, however, these nodes are incentivized to run full-nodes for the benefit of network security, through a bonded validator scheme. These nodes do not participate in the consensus of transactions or block validation any differently than other nodes and therefore do not degrade the security model of Bitcoin’s validate first then trust, across every node. Each token transfer settles on-chain. The protocol follows Bitcoin core policies so it has adequate code coverage and protocol hardening to be qualified as production quality software. It shares a significant portion of Bitcoin’s own hashpower through merged-mining.
This platform as a whole can serve token microtransactions, larger settlements, and store-of-value in an ideal fashion, providing probabilistic scalability whilst remaining decentralized according to Bitcoin design. It is accessible to ERC-20 via a permissionless and trust-minimized bridge that works in both directions. The bridge and token platform are currently available on the Syscoin mainnet. This has been gaining recent attention for use by loyalty point programs and stablecoins such as Binance USD.
SolutionsSyscoin Foundation identified a few paths for Reddit to leverage this infrastructure, each with trade-offs. The first provides the most cost-savings and scaling benefits at some sacrifice of token autonomy. The second offers more preservation of autonomy with a more narrow scope of cost savings than the first option, but savings even so. The third introduces more complexity than the previous two yet provides the most overall benefits. We consider the third as most viable as it enables Reddit to benefit even while retaining existing smart contract functionality. We will focus on the third option, and include the first two for good measure.
Syscoin + Matic IntegrationMatic and Blockchain Foundry Inc, the public company formed by the founders of Syscoin, recently entered a partnership for joint research and business development initiatives. This is ideal for all parties as Matic Network and Syscoin Platform provide complementary utility. Syscoin offers characteristics for sovereign ownership and security based on Bitcoin’s time-tested model, and shares a significant portion of Bitcoin’s own hashpower. Syscoin’s focus is on secure and scalable simple value transfers, trust-minimized interoperability, and opt-in regulatory compliance for tokenized assets rather than scalability for smart contract execution. On the other hand, Matic Network can provide scalable EVM for smart contract execution. Reddit Community Points can benefit from both.
Syscoin + Matic integration is actively being explored by both teams, as it is helpful to Reddit, Ethereum, and the industry as a whole.
Proving Performance & Cost SavingsOur POC focuses on 100,000 on-chain settlements of token transfers on the Syscoin Core blockchain. Transfers and burns perform equally with Syscoin. For POCs related to smart contracts (subscriptions, etc), refer to the Matic Network proposal.
On-chain settlement of 100k transactions was accomplished within roughly twelve minutes, well-exceeding Reddit’s expectation of five days. This was performed using six full-nodes operating on compute-optimized AWS c4.2xlarge instances which were geographically distributed (Virginia, London, Sao Paulo Brazil, Oregon, Singapore, Germany). A higher quantity of settlements could be reached within the same time-frame with more broadcasting nodes involved, or using hosts with more resources for faster execution of the process.
Addresses used: 100,014
The demonstration was executed using this tool. The results can be seen in the following blocks:
It is important to note that this POC is not focused on Z-DAG. The performance of Z-DAG has been benchmarked within realistic network conditions: Whiteblock’s audit is publicly available. Network latency tests showed an average TPS around 15k with burst capacity up to 61k. Zero-latency control group exhibited ~150k TPS. Mainnet testing of the Z-DAG network is achievable and will require further coordination and additional resources.
Even further optimizations are expected in the upcoming Syscoin Core release which will implement a UTXO model for our token layer bringing further efficiency as well as open the door to additional scaling technology currently under research by our team and academic partners. At present our token layer is account-based, similar to Ethereum. Opt-in compliance structures will also be introduced soon which will offer some positive performance characteristics as well. It makes the most sense to implement these optimizations before performing another benchmark for Z-DAG, especially on the mainnet considering the resources required to stress-test this network.
Cost SavingsTotal cost for these 100k transactions: $0.63 USD
See the live fee comparison for savings estimation between transactions on Ethereum and Syscoin. Below is a snapshot at time of writing:
ETH price: $318.55 ETH gas price: 55.00 Gwei ($0.37)
Syscoin price: $0.11
Snapshot of live fee comparison chart
Z-DAG provides a more efficient fee-market. A typical Z-DAG transaction costs 0.0000582 SYS. Tokens can be safely redeemed/re-spent within seconds or allowed to settle on-chain beforehand. The costs should remain about this low for microtransactions.
Syscoin will achieve further reduction of fees and even greater scalability with offchain payment channels for assets, with Z-DAG as a resilience fallback. New payment channel technology is one of the topics under research by the Syscoin development team with our academic partners at TU Delft. In line with the calculation in the Lightning Networks white paper, payment channels using assets with Syscoin Core will bring theoretical capacity for each person on Earth (7.8 billion) to have five on-chain transactions per year, per person, without requiring anyone to enter a fee market (aka “wait for a block”). This exceeds the minimum LN expectation of two transactions per person, per year; one to exist on-chain and one to settle aggregated value.
Tools, Infrastructure & Documentation
Syscoin BridgeMainnet Demonstration of Syscoin Bridge with the Basic Attention Token ERC-20
A two-way blockchain interoperability system that uses Simple Payment Verification to enable:
APITools to simplify using Syscoin Bridge as a service with dapps and wallets will be released some time after implementation of Syscoin Core 4.2. These will be based upon the same processes which are automated in the current live Sysethereum Dapp that is functioning with the Syscoin mainnet.
DocumentationSyscoin Bridge & How it Works (description and process flow)
Superblock Validation Battles
HOWTO: Provision the Bridge for your ERC-20
HOWTO: Setup an Agent
Developer & User Diligence
Trade-offThe Syscoin Ethereum Bridge is secured by Agent nodes participating in a decentralized and incentivized model that involves roles of Superblock challengers and submitters. This model is open to participation. The benefits here are trust-minimization, permissionless-ness, and potentially less legal/regulatory red-tape than interop mechanisms that involve liquidity providers and/or trading mechanisms.
The trade-off is that due to the decentralized nature there are cross-chain settlement times of one hour to cross from Ethereum to Syscoin, and three hours to cross from Syscoin to Ethereum. We are exploring ways to reduce this time while maintaining decentralization via zkp. Even so, an “instant bridge” experience could be provided by means of a third-party liquidity mechanism. That option exists but is not required for bridge functionality today. Typically bridges are used with batch value, not with high frequencies of smaller values, and generally it is advantageous to keep some value on both chains for maximum availability of utility. Even so, the cross-chain settlement time is good to mention here.
CostEthereum -> Syscoin: Matic or Ethereum transaction fee for bridge contract interaction, negligible Syscoin transaction fee for minting tokens
Syscoin -> Ethereum: Negligible Syscoin transaction fee for burning tokens, 0.01% transaction fee paid to Bridge Agent in the form of the ERC-20, Matic or Ethereum transaction fee for contract interaction.
Z-DAGZero-Confirmation Directed Acyclic Graph is an instant settlement protocol that is used as a complementary system to proof-of-work (PoW) in the confirmation of Syscoin service transactions. In essence, a Z-DAG is simply a directed acyclic graph (DAG) where validating nodes verify the sequential ordering of transactions that are received in their memory pools. Z-DAG is used by the validating nodes across the network to ensure that there is absolute consensus on the ordering of transactions and no balances are overflowed (no double-spends).
APISyscoin-js provides tooling for all Syscoin Core RPCs including interactivity with Z-DAG.
DocumentationZ-DAG White Paper
Useful read: An in-depth Z-DAG discussion between Syscoin Core developer Jag Sidhu and Brave Software Research Engineer Gonçalo Pestana
Trade-offZ-DAG enables the ideal speed/security tradeoff to be determined per use-case in the application layer. It minimizes the sacrifice required to accept and redeem fast transfers/payments while providing more-than-ample security for microtransactions. This is supported on the premise that a Reddit user receiving points does need security yet generally doesn’t want nor need to wait for the same level of security as a nation-state settling an international trade debt. In any case, each Z-DAG transaction settles onchain at a block target of 60 seconds.
Syscoin SpecsSyscoin 3.0 White Paper
(4.0 white paper is pending. For improved scalability and less blockchain bloat, some features of v3 no longer exist in current v4: Specifically Marketplace Offers, Aliases, Escrow, Certificates, Pruning, Encrypted Messaging)
WalletsWeb3 and mobile wallets are under active development by Blockchain Foundry Inc as WebAssembly applications and expected for release not long after mainnet deployment of Syscoin Core 4.2. Both of these will be multi-coin wallets that support Syscoin, SPTs, Ethereum, and ERC-20 tokens. The Web3 wallet will provide functionality similar to Metamask.
Syscoin Platform and tokens are already integrated with Blockbook. Custom hardware wallet support currently exists via ElectrumSys. First-class HW wallet integration through apps such as Ledger Live will exist after 4.2.
Current supported wallets
Syscoin Spark Desktop
ExplorersMainnet: https://sys1.bcfn.ca (Blockbook)
Thank you for close consideration of our proposal. We look forward to feedback, and to working with the Reddit community to implement an ideal solution using Syscoin Platform!
Q: Once NEX is rolled out, what will be the easiest way for US residents to buy some stake? I'm aware it's going to be issued as a security so I'm thinking the NEX token will only be tradable on NEX itself because most non decentralized exchanges will not list security's or tokens that don't pass the Howet Test. Is this correct?(u/Cozmo525)(C)You are correct, for US persons you will need to wait other licensed exchanges list NEX or we acquire the proper licenses to allow US people to trade securities. Whatever happens first =)
Best Cryptocurrency Exchanges for Beginnerssubmitted by Tokenberry to NewbieZone [link] [comments]
Before we get into exchanges, let’s refresh our minds about what cryptocurrency is. The concept behind cryptocurrencies is relatively simple, while the math and technology are not. Essentially, a cryptocurrency is a virtual or digital currency that utilizes cryptography as a means for protection and security.
Cryptography is also used to regulate the creation of additional units, so as to not drive the overall digital currency market wild. One of the greatest appeals of cryptocurrencies is that they are not regulated by any government agencies. The most popular digital asset is the bitcoin, followed by ethereum.
What Are Cryptocurrency Exchanges?Cryptocurrencies can be traded through cryptocurrency exchanges. These cryptocurrency exchanges are platforms through which you can purchase or sell digital currencies for dollars, euros, and pounds, as well as other digital assets. For example, you can sell bitcoins and purchase dollars with the sold bitcoins, or you could exchange bitcoins for ether. These exchanges are a vital part of the virtual currency expansion rate.
There are private exchanges, which are exclusive and operate by invite only, as well as those available for the public. Local exchanges also exist. Some are easier to use than others are; certain exchanges are so flexible that digital assets can be traded directly through the built-in chat features of specific popular messengers, like Telegram.
What to Consider When Picking the Best Cryptocurrency ExchangesHere are a few things you will want to consider before picking the best cryptocurrency exchange suited for your trading and speculative needs.
Fees – Almost all exchanges charge fees for you to do business on their platforms. Make sure that when you are signing up or committing yourself to a specific exchange that you know everything about its fees.
Verification Requirements and Security – These are vital to understand before starting out on an exchange. Most exchanges require some sort of identity verification in the form of a passport, driver’s license, proof of residence, or other similar document before joining. The more complex the verification process, the safer the exchange platform.
Exchange Rates – Exchange rates are also important, as you don’t want to join a cryptocurrency exchange that charges draconian fees for transactions and exchanges. That just wouldn’t be fair to you or financially savvy.
Reputation – The best cryptocurrency exchanges always have ups and downs. However, the general opinion of the top ones is positive. The best exchanges have a solid reputation and are well trusted by traders.
Region – It’s also important to find an exchange that supports your geographic region. Some exchanges may support all of the countries in South America, while not supporting any of the countries in Asia, and vice versa. If you are living in Russia, for example, make sure you pick the best exchange platform that supports your region.
Now, let’s take a look at some of the best cryptocurrency exchanges out there.
SecuritySomething which is important to bare in mind when choosing a cryptocurrency exchange to make your trades and purchases on is their security measures. It is well-known that many exchanges have been hacked in the past, most notably the Mt Gox exchange, which people are still feeling the fall-out from ever since.
You should know that the your funds or coins on an exchange or not really yours, unless you own the private keys to the wallet of your coins you are relying on someone else to be custodian of your funds.
Luckily there are some basic measures you can take when using an exchange. The most important is to never store more there than you are willing to lose, if you have a significant balance, you should withdraw it back to your own wallet and for extra security, use a Hardware wallet to secure these funds.
Exchanges should be used for quick purchases of your desired cryptocurrency or for trading an amount you are happy with. They should never be used as your primary wallet, that is not their intended function.
Another important step to take is to use all the security options available on the site, make sure that two-factor authentication (2FA) is setup correctly and you use an app like Authy or Google authenticator. Do not use the mobile phone option which texts you a code, this is not safe as their have been a number of high-profile hacks involving sim-swaps which allow a would-be hacker to take over your phone number and then gain access to your account.
CoinbaseCoinbase is one of the, if not the, most trusted cryptocurrency exchange platforms in the world. It is also the largest digital asset exchange platform in the world. The platform supports more than 32 countries and has more than 4 million active users. Traders are allowed to acquire and sell bitcoins using their bank account, credit card, PayPal, and other payment methods, as well. In order to begin trading on Coinbase, you will have to set up an e-wallet for buying and selling cryptocurrencies. Furthermore, users have to be able to link a valid bank account in order to purchase bitcoins.
Currently, fully verified U.S. residents are only allowed to hold up to 50,000 bitcoins per day. Overall, Coinbase has a great reputation and is highly respected in the trader community. Most transactions through Coinbase only have a 1 percent transaction fee in addition to any fees that your selected payment method may carry.
As with CEX, you can only purchase a few currencies: Bitcoin, Ethereum and Litecoin. You would then need to use Changelly to convert these to other crypto currencies.
Another benefit of registering with Coinbase is the fact you are then able to use the Coinbase Pro exchange which is owed by the same company. Coinbase Pro allows to more advanced trading features such as margin trading and Market, Limit, & Stop Orders. Coinbase Pro also has lower fees than Coinbase.
Read our full Coinbase Review here to learn more. We have also conducted a thourough look at Coinbase’s security measures here.
BinanceBinance is a newer exchange but one we have grown to love, it has a wide range of cryptocurrencies available to purchase and trade and has a basic and advanced view which you can switch between easily. Their fees are very reasonable and they allow you to register and trade immediately without having to verify your account. You will then be able to make withdrawals of up to 2 BTC per day, if you want to withdraw higher amounts you will then need to upload your photo ID and a “selfie” photo.
The public opinion of Binance at this time is very high with people praising the speed of the site, ease of use and cheap fees.
For more details you can read our complete review of Binance here.
KuCoinKuCoin is a new but very exciting exchange based in South Korea. They operate similarly to Binance in the fact that they list new altcoins much quicker than other exchanges so it’s a good place to purchase cryptocurrencies shortly after their ICO meaning there is a greater opportunity to profit by getting in early.
The interface is very clean and modern and much easier to operate than other older and more clunky exchanges.
They also offer their own token KCS which allows all holders to receive a daily share of profits of the platform, this is a great token to hold as you are paid in the many different currencies that the site allows people to trade in.
LocalBitcoinsLocalBitcoins is a peer-to-peer cryptocurrency exchange used in most big cities around the world. The general principle behind this exchange is that you can find people who live in your area or city and meet with them in person to conduct an exchange. The platform also offers options for purchasing digital currencies via PayPal, Square, direct-to-bank transfers, and many other payment-processing methods. The platform charges a small fee of 1 percent per transaction in cases where sellers apply their own exchange rate.
Similar to the way Uber passengers and drivers are rated, LocalBitcoins applies a rating to each trader that uses the platform, and this rating is publicly displayed. Trades first have to undergo an escrow process to ensure that nobody will be scammed by using the platform. Once everything is verified, the funds and cryptocurrencies transfer between traders. LocalBitcoins takes a commission of 1 percent from sellers. W
Take a look at our LocalBitcoins Review to find out more.
CoinMamaCoinMama is a large bitcoin brokerage that allows users to acquire coins with their debit or credit cards. The platform issues small fees for transactions. To make up for this, however, the limits for how many bitcoins a user can buy are much higher in comparison to Coinbase. Users can acquire up to $5,000 of coins per day or up to $20,000 per month. All users need to do to use CoinMama is to set up an account, log in, and navigate to the profile page section to fill in personal information.
Following this, users will be introduced to a page that allows them to select how many bitcoins they would like to purchase, and once a fitting amount has been selected, users will be allowed to add their preferred payment methods and bitcoin addresses. Users will also be required to verify their phone number and email address. CoinMama does not require most users to upload their government-issued ID. After completing the aforementioned steps and passing the verification process, users will be able to acquire bitcoins through CoinMama.
Read our complete CoinMama Review here.
CEX.IOCEX.IO is one of the oldest cryptocurrency exchanges in the world. However, despite being referred to as a cryptocurrency exchange, CEX.IO can only be used with bitcoins and ethereum which are the main two trading pairs for alt-coins. If you want to purchase other currencies, you can use CEX and then a service named Changelly to convert them to many other cryptos.
The platform is registered with the FINCEN and applies KYC and AML principles. In other words, users have to completely verify their identity before they can get involved in any trades with this platform. Currently, the platform supports purchases with credit cards, wire transfers, or SEPA transfers for European residents.
Once you enter a trade, the platform automatically calculates the price of the transaction and freezes the exchange rate for 120 seconds, which is quite convenient. However, many users note that there are occasional hidden fees. CEX.IO has a flat fee of 7 percent for anything involving fiat currencies. For example, if you acquire $100 in bitcoins, you will only receive $93 in coins.
Read our indepth CEX Review here to learn more.
BittrexBittrex is well established and highly regarded crypto trading platform, with many coins and tokens to choose from. The interface is not for complete beginner’s but you should be able to find your way around after a little while.
Read our full review of Bittrex here.
Unsurprisingly, Bittrex’s most popular trading pairs are BTC and ETH. It must be noted that the exchange currently does not offer any kind of fiat-to-crypto pairs, e.g. with U.S. dollars, euros, or British pounds). One thing investors can do is buy USDT (Tether tokens) via wired bank transfers in order to use USDT for crypto-to-crypto exchanges.
However, you’ll need to be fully verified and willing to slap down at least $10,000 USD for Bittrex to even consider the transfer. And we here at Blockonomi don’t remind this approach anyways; there’s been a lot of controversy surrounding Tether lately, and it’s best just to stay away for now until further developments actualize.
ConclusionPicking the ideal cryptocurrency exchange platform for your specific needs may be a difficult and time-consuming process. Remember to pay attention to the fees, reputation, security, verification processes, and geographical services an exchange platform has to offer. Remember that you are not limited to using only one cryptocurrency exchange. Hopefully, the information provided will assist you in deciding which exchange platform to use.
We have selected 6 Cryptocurrency exchanges here which are trustworthy and easy to use for beginners to get started building their investment portfolios.
Original article link: https://blockonomi.com/cryptocurrency-exchanges/
Best Bitcoin Miners Comparison. I compared the leading miners against one another in our Bitcoin mining calculator. For electricity costs I used $0.12 which is high, just to get a better idea of how important low electricity costs are for profitable mining. For pool fees I used the standard 2% fee that can be found on most pools. Calculations are done according to June 2019 values. I compared ... So now that I have listed the best Bitcoin mining hardware, I will move on to doing a mining hardware comparison of each. But before I start doing a review on each of the hardware, it is very crucial that you know that Bitcoin mining is becoming more and more competitive every day. In addition, China is dominating the Bitcoin market because of its cheap electricity. The Trezor Bitcoin hardware wallet pioneered the era of hardware wallets. Created by SatoshiLabs, it is the world’s first secure Bitcoin hardware wallet.. It looks like a small calculator with an OLED screen. Randomly generated nine digit pins and a 24-word recovery seed key ensures security in case the device is lost or damaged. Mining Hardware Comparison Table. Below, I’ve included a comparison table of the six pieces of Bitcoin mining hardware I’ve covered in this guide. This should help you to decide which is going to be the best unit for your mining operation. Calculate Bitcoin (BTC) mining profitability in realtime based on hashrate, power consumption and electricity cost. BTC exchange rates, mining pools. BTC exchange rates, mining pools. $15,471.60 $61.05 $460.56 $122.40 $5.43 $71.06 $63.67 Follow @WhatToMine dark mode Note: Hardware Bitcoin wallets were invented after Bitcoin was born, ... It looks like a small calculator with an OLED screen and can be connected to a USB to your laptop or desktop computer. Earn passive income with Quadency TRADING BOT. Connect Binance account and use Quadency bot for 6 MONTHS COMPLETELY FREE. Hurry up, this deal is not around for long! This hardware wallet generates it keys ... Binance Trading Platform Binance Futures and Derivatives. Binance Futures, which was launched in 2019, enables traders to speculate on the price of (rather than to purchase and sell) Bitcoin and various popular altcoins, including Bitcoin Cash, Ethereum, Litecoin, Ripple and more.. The platform allows leveraged trading of up to 125x, which means that traders can multiply their profits (but ...
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