Blockchain using Haskell

Looking for a number of experienced Haskell developers interested in continuing the building of a Blockchain.

We have built and tested a custom blockchain, and performed basic simulations using 200 millisecond delays were we had transactions confirm within and excellent time period, we need to expand on the real life simulations and continue the development of the blockchain for the ico.

The blockchain is built on the ( Leader )-free Byzantine Consensus

We Need:

Refactoring of the existing code to make the below points easy to implement

More sophisticated network delays, modelling realistic real-world scenarios with a geographical latency graph

Simulation of some Byzantine behaviour, controllable by a command-line flag;

larger parts of this are likely to be done post-ICO, as there are no bounds to how much testing can be done with this approach, but included are at least

One multiple-votes attempt

One attempt to stall progress by not voting

One double-spend attempt at the ledger level

Full source code documentation

Unit and property testing

Blockchain and ledger

Haskell data types to represent the block chain

Chain validity check implementation (chain hashing)

Data types for transactions (as block contents)

Ledger validity check implementation (signatures and balances)

Simulation performance improvements that allow to simulate shorter network delays with less over-approximation than the current simulator

A Continuous Integration setup, that runs tests and produces benchmark outputs

Instructions to build and run the software reproduce the graphs for users unfamiliar with Haskell

A simulated wallet with command line interface (CLI)

Within the single-machine simulator, a user interface allowing the user to enter transactions such as

“Account A: send 3 coins to account B”

so that the user can explore how coins can be sent around between addresses and how long it takes for these transactions to settle.

Graph deliverables, to be included in the whitepaper.

We want to generate at least the following graphs:

CPS when varying latency (single number)

CPS with world map and reasonable geographical graph latency

CPS with varying latency jitter

TPS with varying block size

Transaction latency when varying latency (single number)

Transaction latency with world map and reasonable geographical graph latency

Transaction latency with varying latency jitter

Transaction latency with varying block size

Code for measuring CPS already exists in our current simulator, but code for measuring TPS and latency needs to be written and is accounted in this task.

Also for launch we need a lite wallet and functioning blockchain for the ICO.

You will need to work remotely as part of a small team and can contribute at least 20 hours per week.

You must have at least 2 years experience in Haskell and have contributed to github or similar. This must be in Haskell so we can review your Haskell contributions. Also you must be ok with using Time doctor tracking software - it takes screen shots of your work as you work. Also DevOps experience is a bonus.

Beceriler: Haskell

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İşveren Hakkında:
( 1 değerlendirme ) Atlanta, United States

Proje NO: #19068577

Bu iş için 6 freelancer ortalamada $4407 teklif veriyor


Hello Sir, I am a computer science tutor, I teach (among others) Haskell, Prolog and Advanced Algorithms. I have done many projects like this, and I'm one of the top Haskell developers, and you can check by clicking Daha Fazla

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Hello , I am a cryptocurrency and blockchain developer with 5+ years of experience in blockchain (both public and private), Ethereum, Bitcoin, smart contracts, ICO, tokens. I have checked your project require Daha Fazla

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How are you? I read your description. I have a good experience of blockchain project. I would liek to discuss in detail via chat. Thanks

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We have completed ETH Fork with 5 Billion Coins along with blockchain, Wallet(Window, Linux, Mac, android) supportive POS/POW, ICO, ERC20 Tokens, White Paper, exchange listing, exchange & trading system. As well as we Daha Fazla

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Greetings, We are colonist services providers from India for Cryptocurrency development, Crypto exchanges,Crypto wallets, Mining platform apps, Exchange platforms and other types of Blockchain based development.  Daha Fazla

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I am a full stack freelancer developer with over 15 year's of experience am proficient in Php,ASP.net 4.5 with C#, MVC5 MS SQL server, HTML5, CSS3, Javascript, Json, JQuery, XML, Ajax, Wcf, Rest Services, Web Api, SS Daha Fazla

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