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Category Archives: Decentralized Applications

Dejun Qian, Founder of BitSE, is on a new path with one of the most promising blockchain project for 2018

The south-east Asia tech influencer and thought leader has founded a new blockchain project that its goal is to establish a public blockchain that will break the bottlenecks of interoperability and scalability

Singapore, January 19th, 2018 Fusion (http://fusion.org/), the project that is establishing an inclusive cryptofinance platform that will breaking the bottlenecks of interoperability and scalability in order to provide a full set of financial functions, is unveiling today its founding team, among them is Dejuan (DJ) Qian, Founder of BitSE, one of the earliest teams researching and developing blockchain technology.

Fusion, currently in stealth mode, is working on a solution for the scalability and usability problems within the various blockchain ecosystems, since current cryptocurrencies have only achieved limited functions of a complete cryptofinance ecosystem. With its solution, Fusion will allow all non-inherent blockchain assets to be a part of the chain, by tokenizing such off-chain assets as on-chain tokens and making them execute and transact within smart contracts.

Founded by DJ, BitSE is one of the earliest teams researching and developing blockchain technology, as the company has started its ASIC mining chip design at 2014, owning the earliest and largest mining centre in China. Since then, DJ and the team have launched two high profile blockchain projects: QTUM (https://qtum.org/en/) and VeChain (https://www.vechain.com/). In 2016, BitSE was selected as one of the “Top 10 FinTech Startups” and “The powerful blockchain infrastructure of the year”by Caishi China. DJ was selected as the ‘most Innovative CEO of that year for ‘Jiepu Prize’.

“As one of the early adaptors, I’m excited to see how 2017 brought the blockchain technology to the mainstream financial conversation,” says, DJ Qian, Founder at Fusion. “2018 is the right time to start looking at the scene as being mature enough and recognized enough to start thinking about the next steps, one of them: how to bring non-inherent blockchain assets to the chain, and that’s exactly what we’re planning to do.”

About Fusion:

Founded in 2017, Fusion provides an inclusive solution for integrating cryptocurrencies that exist today and ones that will be issued in the future by connecting centralized and decentralized organizations, balancing authentication and anonymity, and integrating both on-chain and off-chain data.  Fusion utilizes distributed network nodes to control various types of tokens’ private keys, and establishes a control and management layer on top of different types of blockchains.

The Cryptoverse Update: Chris Coney Explains EOS In The Upcoming Movie “New Kids On The Blockchain”

The Cryptoverse Update: Chris Coney Explains EOS In The Upcoming Movie “New Kids On The Blockchain”

Source: The Cryptoverse

Brian Phobos Update: EOS Deep Dive – King Crypto In 2018?

Brian Phobos Update: EOS Deep Dive – King Crypto In 2018?

Source: Brian Phobos

BREAKING NEWS: Over 300 ETH Borrowed on ETHLend Decentralized Lending Application under two Weeks!

Over 300 ETH in Decentralized Loans Reached

Since the Alpha 0.2 release on 15 December 2017, ETHLend is proud and humble to announce that over 300 worth of Ethereum has been borrowed through our decentralized application!

Borrowers have used variety of different collaterals ranging from the pre-defined list the DAPP provides. There have been currently over 120 loans and the most popular collateral is ETHLend’s native LEND token.

The USD-pegged Ethereum loans consists of around 12% of the total loan book, and rest of the loans being pure Ethereum. Most loans are up to 30 days and fewer loans are above 30 days. The biggest loan is around 20 000 USD worth of Ethereum and other bigger loans have varied from 10-17 ETH. Due to gas costs on Ethereum, under 0.5 ETH loans are less efficient and we consider loans below 0.5 ETH more or less as testing purposes.

Lending volume provides cash flow. Upon each loan request, ETHLend collects 0.01 ETH fee from the borrower and 0.01 ETH fee from the lender when funding a loan. Therefore, even such early stage as Alpha, ETHLend is creating turnover for the project. Despite the fact that the volumes are recently accumulated and the fee structure will be change to more efficient by lowering the threshold for borrowing and making more return on bigger loans, such fee collecting is a proof-of-concept that ETHLend could grow into a fully established FinTech house soon.

The unexpected success is a great milestone not solely for ETHLend team, moreover for the whole community of decentralized applications. Developing decentralized applications is surely not the easiest path, however in the long run provides a market that is determined by the lenders and borrowers instead of banks and financial institutions.

Do you have a token portfolio and need to unlock some of that liquidity you have lying around in your tokens?

Place a loan request by installing metamask (from https://metamask.io) and browsing to the decentralized application at https://app.ethlend.io. Press help for instructions or chat with us.

Join our Telegram to join the soon 11.5K member community: https://t.me/ETHLend

To stay up to date with the project, join our announcement channel: https://t.me/ETHLend_Official

– The ETHLend team

Discuss on Telegram

EOS.IO Dawn 2.0 Released

EOS.IO Dawn 2.0 has been released along with a public test network which will be maintained by the block.one team. This release provides an Alpha implementation of most of the remaining features described in our Roadmap for Fall 2017 and originally targeted for completion by December 21, 2017. As published in our Roadmap, “Phase 2 – Minimal Viable Test Network” was to demonstrate the following by Fall 2017:

  1. P2P Network Code

  2. Wasm Sanitation & CPU Sandboxing

  3. Resource Usage Tracking / Rate Limiting

  4. Genesis Import Testing

  5. Inter-Blockchain Communication

At this time, we have the achieved the initial implementation of most of these features; however, due to parallel development paths our implementation of Inter-Blockchain Communication exists on a separate branch that will not be used for the initial test network.

Those interested in performance-testing our EOS.IO Dawn 2.0 release will find that all blockchain and network code necessary to launch and operate a private network can be found in our GitHub repository. Our internal testing shows we can sustain several thousand transfers per second and 1 second blocks using our single-threaded implementation on average hardware. That said, there are known attack vectors for which we have unimplemented solutions. For example, compilation of new contracts for the first time can take up to 34ms, which if exploited could cause the network to fragment at transaction rates over 30 TPS.

Our solution for this issue is to place limits on the frequency with which contract code can be updated, as well as a time delay between when code is updated and when transactions using that new code can be processed.  This time delay will be on the order of 60 seconds to allow all block producers time to compile/cache the optimized x86 instructions from the web assembly.

Because of these outstanding attack vectors, performance testing will remain a task for private test networks, but feature testing can now be performed on a public test network which we are artificially limiting to 30 TPS to ensure uptime and access. 

Over the next 6 months, we will be continuously testing and debugging the network to improve stability and performance.

New Features in Dawn 2.0 

Genesis Import Testing

We have implemented a snapshot tool that will import initial state based upon the EOS ERC-20 token distribution on the Ethereum network. Our test network will only include balances which registered a valid EOS public key. About 20% of ERC-20 tokens have been properly registered to an EOS public key. Our snapshot tool also implements a fallback tool for all unregistered ERC-20 tokens held by an Ethereum account for which we can recover a public key from signed ethereum transactions. This covers 99% of all EOS ERC-20 tokens, but will require importing your Ethereum private key into your EOS.IO wallet.

For security purposes, our test network will not ask users to import their Ethereum private keys recovered via the fallback process. If your EOS private key is compromised while testing, you can always register a new key on the Ethereum network.

Token Faucets

We have also implemented a “faucet” facility to allow testing of the network by those who do not hold tokens or have not yet registered a valid EOS public key.

Resource Usage & Rate Limiting

We have implemented basic rate limiting and resource usage tracking. This tracks  bandwidth, database storage, and computational usage. At this time there are some known bugs with our rate limiting algorithm, but nothing that should interfere with testing and developing of applications. 

We know that many people have been asking for more information about how rate limiting will operate, who will be billed, and how they can lease their staked tokens for income. 

Bandwidth

All transactions consume some of the maximum network bandwidth as configured by the block producers. All accounts whose authority is required for the transaction will have their 3-day average bandwidth incremented based upon the size of the transaction. Bandwidth will require the authorizing account (not the contract) to have staked tokens or to be delegated staked tokens by the application provider.

Computational Bandwidth 

All transactions consume some computation. Computation can be executed in parallel, so it can be viewed as a multi-lane highway with each lane having different congestion. Each scope (lane) will have its own independent rate limit and a user will be billed O(S^2) for the number of simultaneous scopes (lanes) requested and rate limited based upon the most congested scope.

Database Storage

EOS.IO contracts have access to an in-memory database where they can store application state. The contract is billed based upon the total data they store plus a constant overhead factor for each independent database entry.  This in-memory database is independent and separate from the EOS.IO Storage protocol for decentralized bulk hosting and storage.  

P2P Network Code

We have a basic implementation of mesh network code that is being demonstrated by our public test network. Block.one is operating 21 independent servers each with one of the initial producers configured.

EOS Dawn 3.0

EOS Dawn 3.0 will re-introduce horizontal scaling of single chains and infinite scaling via secure inter-blockchain communication. With these two features there will be no limit to what can be built on blockchain technology, nor for how decentralized the network of blockchains can become.

Infinite Scaling and Infinite Decentralization

The holy grail of blockchain technology is to enable secure communication between two independent blockchains without requiring both blockchains to validate everything on the other blockchain.  This requires making one blockchain a light-client of another blockchain.

Light clients authenticate transactions using only the block headers and merkle proofs. EOS.IO will be the first proof-of-stake protocol with support for light client validation. More importantly, it will be the only one capable of generating proof-of-completeness. This means it will be possible to prove you have received all relevant prior messages from another chain in order without having a waiting/challenge period.

Whereas traditionally light clients have to process all block headers, EOS.IO will enable light clients that only have to process block headers when producers change or when a new message is required from a more recent block. This will enable efficient infrequent communication between chains along with frequent communication. In the worst case, the overhead of two blockchains communicating every 500 ms will be about 2 transactions per second above the total number of messages sent.

Under this model, the communication will be secured so long as at least ⅓ of producers are honest. Furthermore, if even one producer is corrupt they can be automatically punished if they sign any message that could potentially corrupt a light client (aka foreign blockchain).

Lastly, the round-trip time for communicating to another blockchain depends upon the latency until irreversibility of each chain. An EOS.IO based chains will be able to send a message to a foreign EOS.IO chain and get a cryptographically verified response in under 3 seconds. 

This level of interchain communication and security enables the creation of two-way pegs between chains with very low latency. While the two-way peg is the most obvious example, any business-to-business communication can be performed using this same method.

Public / Private Communication

With interchain communication it will be possible for private blockchains to have secure two-way communication with public blockchains. This enables all kinds of blockchain applications which are not well suited to the public nature of traditional blockchains. For example, someone could create the Swiss-Bank of blockchains that is super secret to everyone but the bank owners and the individuals.  

Development Progress 

In order to deliver our public test network, we divided our development into two parallel paths so that we could refactor significant portions of our code for readability, performance, and inter-blockchain communication. This refactoring work has been occurring in the eos-noon branch. 

In past updates we indicated our intention to focus on shared-memory architectures so that developers could easily perform synchronous read-access and atomic transactions with other contracts. The consequence of this approach was a loss of horizontal scaling beyond a single high end machine.

With EOS Dawn 3.0 we will be restoring the ability to do multi-machine horizontal scaling by use of up to 65,000 different regions. All regions will share the same accounts and contract code, but have independent in memory databases. Contracts within one region must use asynchronous transactions to communicate with their counterparts in other regions. With this architecture a single block producer could be implemented as a cluster.

Working Integration with Apple’s Secure Enclave

In our last update we announced our intention to support the same elliptic curve as used by Apple, Android, and many smart cards.  Our eos-noon branch now includes a fully functional proof-of-concept where messages are signed and verified using Touch ID (and also Face ID) on the latest MacBook Pro’s.  Similar code also works on native iPhone applications.  This means that EOS.IO based mobile applications will be among the most secure blockchain wallets known.

Furthermore, the eos-noon branch has now integrated this support for multiple signature types which means it is possible to use secure enclave to sign transactions which will be validated on eos-noon.

500 ms Block Confirmation

On our eos-noon branch we have implemented a number of changes to the underlying DPOS framework to support 500 ms blocks (2 blocks every second). This change will dramatically increase the responsiveness of decentralized applications. To achieve this we have introduced some changes in how block scheduling occurs.

The same producer will now produce 12 blocks in a row before handing off to the next producer. This solves the single biggest bottleneck on block production which is producer-to-producer handoff.  Under the new structure unexpected latency may cause a few blocks to be missed, every time there is a hand off, but between handoffs there should be very fast confirmation. We will be experimenting with different hand-off periods. The longer the handoff period the fewer missed blocks during normal operation, but the longer the outage will be if a single node goes down. With 500ms and hand off every 12 blocks, the “down time” is no worse than when a single producer misses a single block on Steem and BitShares. In this event it could take 6 seconds for first confirmation.  

Removing Runner Up Producers

Inter-blockchain communication requires light clients to keep track of all blocks where the set of active producers changes. The “runner up producer list” causes a new producer to be added or removed every minute which forces light clients to process at least one block header per minute, if not more. In order to reduce the frequency of producer set changes we have changed block scheduling to only include the top 21 producers. We are considering offering some kind of stand-by pay for the runner ups, but they will not actually be tasked with producing blocks.

One Second Irreversibility 

Every block producer will sign every block which will enable a block to be marked irreversible as soon as ⅔+ producers have signed it. Producers are only allowed to sign one block header per block height. This means that in the event of a fork producers cannot sign blocks at the same height on both forks. Any such a signature will be cryptographic proof of misbehavior of a producer which can be dealt with by a number of methods including, automatic loss of producer position, potential loss of bond, and potentially liability for damages under arbitration.

Unlike other protocols which gather ⅔+ signatures before the next block can be produced, EOS DPOS does optimistic pipelining that allows the blockchain to advance in “pending state” while the signatures are gathered. These additional signatures occur outside the blockchain and can be pruned after a block becomes irreversible under traditional DPOS rules of Steem or BitShares.

Under this model, it is possible to achieve byzantine fault tolerance because it is impossible for any block to receive ⅔+ signatures without cryptographic evidence of the byzantine nodes.

Removing Producer Schedule Shuffling

In order to minimize the number of missed blocks during producer handoff, it is desirable to minimize the latency between consecutive producers. If a producer in New York is scheduled to follow a producer in China it may take 250ms to receive a block under normal conditions (50% of block interval) and potentially much longer if there is network congestion. A producer in New York and Texas on the other hand would only have 50ms of latency (10% of block interval). This means there is a significantly lower probability of missing blocks during a handoff from New York to Texas than from New York to China.  

If we schedule block production such that it rotates from New York, to Texas, to California, to Hawaii, to Japan, China, India, Israel, Italy, England, Island, and back to New York then there is never a hand off of more than 50 to 100ms. However if the order is randomized then the average hand off will be significantly higher.

Producer shuffling was introduced to minimize the potential of one producer to pick on a subsequent producer. This risk was in a world where producers were presumed to be potentially malicious, but in the world of highly vetted, public, producers with high quality data centers it no longer makes sense.  There is a constitution and expected level of behavior along with a process of resolving disputes in the event one producer intentionally harms his neighbor.  

Under EOS the producers will vote on the production rotation order in a way that minimizes average latency and minimizes total missed blocks due to Internet network congestion.

Known Issues

There are a number of known issues with EOS Dawn 2.0 and it is expected for there to be significant instability with this early release. The purpose of this release is to demonstrate a basic capability and our team will be ironing out the bugs, improving stability and performance over the the next 6 months.

In order to support stability of the test network, we have disable producer voting.

Conclusion

We would like to thank our development team for working around the clock and around the globe to build and deliver EOS Dawn 2.0, an alpha version of what will become the most robust, highest performance, most decentralized application platform available. We are executing according to our published roadmap and delivering more features and capabilities than originally planned. We look forward to 2018 and are confident that all features will be complete and bugs resolved by the time the EOS token distribution is concluded.

Status, first ever mobile Ethereum OS, joins the Enterprise Ethereum Alliance (EEA)

Status will foster the public Ethereum blockchain by joining the EEA, the world’s largest open-source blockchain initiative

ZUG, Switzerland, December 4, 2017Status, the first ever mobile Ethereum client built entirely on peer-to-peer technologies, is announcing that it has joined the Enterprise Ethereum Alliance (EEA), the world’s largest open-source blockchain initiative. With membership across the Fortune 500, enterprises, startups, research facilities, and even governments, the EEA’s mission is to enhance the privacy, security, and scalability of Ethereum-based blockchain technologies.

Following a successful token sale of SNT raising more than $100M in ether in less than 24 hours, Status is currently in development. Status is an open source mobile platform that serves as a gateway to decentralized apps (DApps) and services built on Ethereum. The base offering enables access to encrypted messages, smart contracts, digital currency, and more.

The early-stage startup is a passionate open-source project committed to the public blockchain. Status’ goal is to partner across the EEA membership roster to ensure the promise of Ethereum is tangible for billions of people. Playing a leading role in improving the user experience to interact with Ethereum, Status will cultivate relationships and leverage resources that drive the development of open-source standards for the public Ethereum blockchain.

Alongside leading global enterprises and startups in the EEA, Status will help to drive a clear roadmap, robust governance model, and useful Ethereum resources. As participation continues to grow, Status involvement in the EEA is an important strategic initiative that will support the decentralization movement and the shared vision of a world where blockchain-based technology is in the hands and smartphones of people around the world on a massive scale.

“Status is committed to decentralization and joining the EEA is a unique opportunity to help traditional enterprises that are often challenged by a deep legacy of investment in centralized systems,” said Carl Bennetts, Status Co-Founder. “We hope our combined efforts with all of the EEA organizations will quicken the pace of development and new tech adoption to make Ethereum accessible for all.”

The team recently announced a new COO from Google, development of Status Hardwallet for wireless transactions using NFC, and Status Open Bounty, a new open bounty fund. Pledging a commitment of $1M to aid open source projects, Status is already bringing together developers and organizations, demonstrating commitment to open source.

Learn more by reading the Status whitepaper or join the Riot channel to stay up to date about Status, Ethereum, and the EEA.

EOS’s New Storage Project is Major + CME Futures and How They Affect Pricing

EOS’s New Storage Project is Major + CME Futures and How They Affect Pricing

Source: Crypto Blood

Announcing EOS.IO Dawn v1.0

EOS.IO Dawn 1.0 is the first pre-release of the EOS.IO SDK (Software Development Kit).  The Dawn series of EOS.IO software releases represent early alpha-quality software suitable for use by those looking to get a head start on the EOS.IO ecosystem.

What’s in the Release?

For the full list of features included in this release check the Release Notes.  

This release includes all Phase 1 features, including documentation and guides for developers to build a private P2P network  to test smart contracts.

In addition, we were able to include some features from Phase 2 ahead of schedule, a full list of those can be found here in the Release Notes.  

For Developers with C++ and/or blockchain experience you can Get Started here.

Updated Website

We’ve also updated the EOS.IO website to better highlight all of the news, releases, and excitement about this software.  As well as the new homepage, we have an expanded resources page where we will be regularly adding new content related to EOS.IO, including announcements, development guides, videos, and community content. EOS Explorer will become the best single location to find out what’s new, though of course we will continue to share everything on Steemit and through our mailing list as well.

Looking Ahead

EOS.IO Dawn 2.0, the next major pre-release, will come by the end of the year. EOS.IO Dawn 2.0 will include several critical features that are not present in EOS.IO Dawn 1.0 including:

* Resource Rate Limiting (preventing spam / abuse)
* Merkle Tree Generation (for cross chain communication)
* Upgrade Management and Governance
* More robust SDK
* General Infrastructure improvements
* Example Snapshot from ERC20 tokens

The goal of EOS.IO Dawn 2.0 is to be functional enough that one could launch a live blockchain.

There’s still much to be done, but everyone working on the EOS.IO software is very excited to have reached the end of Phase 1 in such good shape.  We look forward to continuing to deliver on the promise of blockchain technology.

Sincerely,

block.one

Could Ethereum Be Made Obsolete By The New Decentralized Smart Contract Platform EOS?

Could Ethereum Be Made Obsolete By The New Decentralized Smart Contract Platform EOS?

Source: The Dollar Vigilante

Reasons why you don’t want to miss out on buying some EOS

Jeff Berwick of TheAnarchast interviews developer of Steem and EOS, Dan Larimer.

Source: TheAnarchast