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Author Topic: [ANN] [VITE] [DAG + Reactive Contracts] Vite | Asynchronous Architecture  (Read 3037 times)
eli_lyd1
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June 08, 2018, 03:01:31 PM
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A Next Generation High-performance Decentralized Application Platform


The Core Key Designs of Vite

Asynchronous Architecture | DAG Ledger | HDPoS Consensus Algorithm | Reactive Contract | Integrated Value System


Specifications

  • Name: Vite
  • Symbol: VITE
  • Initial Supply: 1,000,000,000 Vite
  • Consensus Algorithm: HDPoS Consensus Algorithm
  • Snapshot Chain Block Time: 1 seconds
  • Ledger: DAG (Block-Lattice) + Snapshot Chain
  • Smart Contract: Reactive Contract (Asynchronous Contract)
  • Token Address: 0x1b793E49237758dBD8b752AFC9Eb4b329d5Da016

Introduction

Vite is a next-generation Reactive Blockchain that adopts a message-driven, asynchronous architecture and a DAG-based ledger.  The goal for Vite’s design is to provide a reliable public platform for industrial dApps, with features of ultra-high throughput and scalability.


The most important innovation of Vite is its asynchronous architecture.

The following are the main asynchronous characteristics in Vite’s designs:


  • Asynchronous model of requests and responses
  • Asynchronous model of writing and confirmation of transactions
  • Asynchronous model of communications between contracts


In addition, Vite makes use of a DAG ledger structure called block-lattice, which has far better performance than the traditional blockchain structure.  To make up for the inherent security deficiency of the DAG structure, Vite incorporates the Snapshot Chain technology.

Vite's consensus algorithm, called HDPoS, is a hierarchical consensus algorithm with low latency and high scalability.

In order to accommodate the existing ecosystem, the Vite virtual machine maintains maximum compatibility with EVM,  while providing a more powerful smart contract language, which we call solidity++.

Vite's original quota-based resource model and resource-leasing function ensure that system resources get allocated with maximum efficiency. Commercial Heavy users can be guaranteed sufficient quotas, while lightweight users do not have to pay commissions.

Vite's design of token issuing, token exchanging via loopring protocol and cross-chain protocol constitutes a complete closed-loop value system. Users can conveniently issue, store and exchange their digital assets in Vite system.

In the future, Vite’s mobile app will come with an HTML5 engine for creating dApplets (Decentralized Applets).  Smart contracts on the Vite platform and corresponding SDK support will make it easy to develop and deploy dApps on Vite.


The DAG ledger


Vite makes use of a DAG ledger structure called block-lattice. Each account has its own chain. Each transaction refers to the hash of the previous transaction in the same account. Transactions are divided into two types: "request transactions" and "response transactions.”  A response transaction needs to refer to the hash of the corresponding request transaction. This setup creates a grid-like DAG structure.

Such a structure allows parallel writing of individual transactions, reducing the probability of collisions and improving system throughput.

Note that this structure has an inherent deficiency in security.   This is because transactions are grouped by accounts, and each transaction is only attached to the chain associated with the relevant account. Transactions generated by other accounts do not automatically become the subsequent nodes of the previous transaction. Therefore, for some transactions, the rollback probability of their reversion will not drop over time.  To address this issue, Vite makes use of the snapshot chain technology.



The Model of Asynchronous Requests


Transactions in Vite can be categorized as request transactions and response transactions.  Regardless of whether an event is a transfer or the call of a contract, two successive transactions get generated on the ledger.

A transfer can be split into a receive transaction and a send transaction; a transaction to invoke a contract can be split into a contract request transaction and a contract response transaction; the message call within each contract can be split into a request transaction and a response transaction.

After the split, each transaction only affects the state of a single account, and transactions do not interfere with one another, which improves throughput.  In addition, transactions by different accounts are also allocated to different nodes in the network, thereby increasing scalability.


The Model of Asynchronous Confirmation



In the Vite framework, writing transactions into a ledger and receiving confirmations by the system are also asynchronous.  Different users may write transactions into the ledger in parallel., and the snapshot chain will take snapshots of the ledger at a constant rate.  A confirmation happens once a snapshot of a transaction is taken.  As the snapshot chain grows, the number of confirmations will also increase.

The mechanism of asynchronous confirmation will reduce the peaks and troughs of the speed of transaction writing, thus optimizing usage of resources.

Vite employs a hierarchical HDPoS consensus algorithm. Each account chain in the ledger generates local consensus results,  and the snapshot chain at the highest level selects the final consensus result from the local consensus results.


The Model of Asynchronous Communication


Vite's inter-contract communications incorporate a message-driven architecture, where the contracts do not share states but only communicate by sending messages to each other.

If a contract calls another contract, the former needs to send a request transaction first. This is logically similar to producing a message in MQ.  After the node running the target contract observes the request transaction, the node writes a corresponding response transaction in the ledger, and updates the state of the contract. This process is equivalent to consuming a message from MQ.if a return value is needed,  the target contract will send another message to the source contract in the same way.

In this model, Vite's ledger serves the role of the message middleware, and can guarantee the exactly-once semantics of messages.

The message-based architecture features high throughput and scalability.  But on the flip side, the programming models become more complex. Not only is strong consistency not guaranteed, but latencies may become longer.

To address the above issues and reduce the cost of asynchronous programming, Vite will provide a contract language called Solidity++ and a full SDK associated with it. After rigorous research, we found that in actual scenarios , BASE semantics can replace ACID semantics. The increase in delay is still under control since the HDPoS consensus algorithm guarantees completion of the transaction confirmation  within 1 second.


Other Designs


Vite’s design also comes with a few other features.  They are practical solutions to problems and pain points in the realm of decentralized applications. The development of Vite's community and implementation of the VEPs( Vite Enhancement Proposals) will drive continual improvement of Vite protocol.

Vite’s protocol supports multiple tokens. Unlike the ERC20 scheme, user-issued tokens and Vite tokens share the same underlying trading protocol.  This ensures identical level of security between types of tokens, and obviates security concerns due to poor implementation (e.g., those caused by stack overflow).

Vite will have the Loopring protocol built in, enabling exchange of multiple tokens. Therefore, the Vite wallet has functions of a decentralized exchange.

In addition, Vite proposed the VCTP cross-chain protocol that allows the transfer of assets between chains. The Vite team will implement the cross chain gateways with Ethereum.  Cross-chain gateways with other target chains will open to the community.

The resource allocation mechanism in Vite is based on the stake of VITE tokens, the one-time fee, and the difficulty of PoW for a transaction.  The mechanism provides flexibility for users with different needs. Users can choose to stake  VITE for a period, to get fixed amount of TPS quotas. They can also pay a one-time fee to increase quotas temporarily.  They could also lease resource quotas from existing VITE stake holders.  Lastly, they could even obtain quotas by computing  a PoW.

Moreover, the design of Vite includes the naming services, contract updating, timer scheduling, Solidity++ standard library, block pruning, and so on.

The white paper contains more specifics.


Distribution

The financing of the Vite project has been successfully completed, with a total of approximately 60,000 ETHs (including some BTC converted according to market prices).

A total of 400,000,000 Vite was issued, which accounted for 40% of the total circulation. It is expected that the first token will be issued before June 15 .

All token issuance is divided into 5 times, 20% each time, one month apart.

Vite’s investment institutions include: Bitmain, Node Capital, LinkVC, Genesis Capital, etc.





Resources


Airdrop

we will make an announcement for a plan for an Airdrop soon! Stay tuned!


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eli_lyd1
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June 08, 2018, 03:01:58 PM
 #2

Reserved

eli_lyd1
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June 08, 2018, 03:02:14 PM
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Reserved

Dasengineer
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June 08, 2018, 03:11:01 PM
 #4

The new kid on the block! The investors and partners part are just top notch. Teams seems young but has already extensive experience. Seems very high hard cap and I can't find info if there was a public sale? Or it was sold to only private investors? Very interesting project

________Any Store Can Buy, Sell and Accept Cryptocurrency________
█████████ ██ ███ ██      PUNDI X      ██ ███ ██ █████████
Whitepaper      Twitter      Facebook      Telegram      Medium      Youtube
eli_lyd1
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June 08, 2018, 03:14:36 PM
 #5

The new kid on the block! The investors and partners part are just top notch. Teams seems young but has already extensive experience. Seems very high hard cap and I can't find info if there was a public sale? Or it was sold to only private investors? Very interesting project

There is no ICO. We accept fund from capital.

Our team is becoming stronger. We hired 16 engineers and PMs with six of them already on-boarded. The rest are in process of leaving their current positions.

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June 08, 2018, 03:48:16 PM
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reserve Chinese translation
Dasengineer
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June 08, 2018, 03:50:44 PM
 #7

The new kid on the block! The investors and partners part are just top notch. Teams seems young but has already extensive experience. Seems very high hard cap and I can't find info if there was a public sale? Or it was sold to only private investors? Very interesting project

There is no ICO. We accept fund from capital.

Our team is becoming stronger. We hired 16 engineers and PMs with six of them already on-boarded. The rest are in process of leaving their current positions.

I see, so are the tokens for all the capitalists already distributed? What was the bonuses given (at least specify the range please). Is your token (as I understand it is still a token on Waves?) available for trading?

________Any Store Can Buy, Sell and Accept Cryptocurrency________
█████████ ██ ███ ██      PUNDI X      ██ ███ ██ █████████
Whitepaper      Twitter      Facebook      Telegram      Medium      Youtube
eli_lyd1
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June 08, 2018, 03:56:02 PM
 #8

The new kid on the block! The investors and partners part are just top notch. Teams seems young but has already extensive experience. Seems very high hard cap and I can't find info if there was a public sale? Or it was sold to only private investors? Very interesting project

There is no ICO. We accept fund from capital.

Our team is becoming stronger. We hired 16 engineers and PMs with six of them already on-boarded. The rest are in process of leaving their current positions.

I see, so are the tokens for all the capitalists already distributed? What was the bonuses given (at least specify the range please). Is your token (as I understand it is still a token on Waves?) available for trading?

Tokens for all the capitalists are not distributed. All token issuance is divided into 5 times, 20% each time, one month apart.

Now it's a ERC20 token on eth not on waves, you can check it at : https://etherscan.io/token/0x1b793E49237758dBD8b752AFC9Eb4b329d5Da016

In private sale, the Subscription Ratio is 1 eth for 7000 vite.

Now vite only can trade on loopring.io. Some of vite was sold on the loopring.io.  

lionheartmg
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June 09, 2018, 04:10:31 AM
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Is there staking or masternodes involved for regular Joe investors?
Afkbio
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June 09, 2018, 12:24:12 PM
 #10

Hey, we launched a while ago a discord channel exclusively dedicated to DAG cryptocurrencies.

We list over 40 DAG projects and we have 1000+ users. Each DAG project has its own channel so you can check what's up with your favorite DAG.
VITE has just gotten its own channel !

You can join here:

https://discord.gg/dzSn3jY

See ya !

DAG DISCORD
https://discord.gg/dzSn3jY
Plitoog
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June 09, 2018, 12:55:37 PM
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 Wink Wink i love vite
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June 09, 2018, 01:05:34 PM
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The new kid on the block! The investors and partners part are just top notch. Teams seems young but has already extensive experience. Seems very high hard cap and I can't find info if there was a public sale? Or it was sold to only private investors? Very interesting project

There is no ICO. We accept fund from capital.

Our team is becoming stronger. We hired 16 engineers and PMs with six of them already on-boarded. The rest are in process of leaving their current positions.

I see, so are the tokens for all the capitalists already distributed? What was the bonuses given (at least specify the range please). Is your token (as I understand it is still a token on Waves?) available for trading?

Tokens for all the capitalists are not distributed. All token issuance is divided into 5 times, 20% each time, one month apart.

Now it's a ERC20 token on eth not on waves, you can check it at : https://etherscan.io/token/0x1b793E49237758dBD8b752AFC9Eb4b329d5Da016

In private sale, the Subscription Ratio is 1 eth for 7000 vite.

Now vite only can trade on loopring.io. Some of vite was sold on the loopring.io.  

Cool! Will buy some on loopring.io!  Smiley Smiley
rufia75
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June 10, 2018, 07:03:13 AM
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This should be interesting. 5% is alot, but wondering how they will distribute. There's already 8500 telegram members. If it grows to 30K+, sure distribution gets larger, but then 5% seems alot smaller. Not like a crowdsale, where public gets much larger slice of overall pie. I hope this doesn't turn into a $10 airdrop.
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June 10, 2018, 08:29:00 AM
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Good project. But no token sale?
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June 10, 2018, 10:25:58 AM
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Would like also to know if we can run nodes or stack it for passive income
niharpradhan
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June 10, 2018, 10:32:42 AM
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Awesome...

https://akropolis.io/
♦ AKROPOLIS ♦ Blockchain Pensions Infrastructure ♦
♦ Token Generation Event Q2 2018 ♦
Cauchy
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June 10, 2018, 11:18:39 AM
 #17

Interesting Project, congratulations on the funding and your recent newhires.
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June 10, 2018, 11:52:29 AM
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Top 10 [Suspicious link removed]d work team
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June 10, 2018, 02:11:11 PM
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Wait airdrop Roll Eyes
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June 10, 2018, 03:22:22 PM
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wait for airdrops
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