Blockchain is a distributed register that is used to maintain a continuously growing list of records, called blocks. It has revolutionary applications in finance (such as cryptocurrencies like Bitcoin) and decentralized applications like online voting.

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    45 仕事が見つかりました。次の価格: USD

    A 25 pages whitepaper that explains what the exchange does, its operation model, its cutting edges, about its token, etc. Send a message to get more details. thanks

    $286 (Avg Bid)
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    9 入札

    I want a white labeled version of Polymath with my company brand on it. Exact same features using ST20 and ERC1440 Tokens. Ability to mint on Ethereum Main net, Automated Smart contracts for investor management, lockup periods and tokenomics etc.. [ログインしてURLを表示]

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    3 入札

    Hi, i need to create a simple search form displaying the results from a Ethereum Blockchain, like explorer, TX hash etc ( image 1 ) and display decoded content from op_return below ( image 2 )

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    9 入札

    Hi Sergey. This is Carlita. do you remember [ログインしてURLを表示] We tested and reviewed your previous work - dice game, baccarat smart contract. Unfortunately, it doesn't work properly. Please come again and prove your works. Otherwise, I should file refund request. If you want to go ahead, then we can restart our contract here again. but must handle current issues. Regards

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    21 入札

    I wanna change the name of my ERC20 Ethereum token into a New one, and list it on the Etherscan

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    47 入札

    We need our own cryptocurrency coin created for a new project. Needs to be POW and POS with masternodes. Ideally based on either Dash, PIVX or Zencash. If you can do project based on Loki or Zencash, Horizen let us know. You must have experience in creating similar coins before and show proof of work that you have done so. Share links to us and your github links. We need wallets for Linux, ...

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    9 入札

    Hi, - You need to know about blockchain. - I need to hire a graphics to help me make my website better. - Please have an image ready if you wanna add something. - It should be right now. +++ Plus point if you are content writer also. Thanks

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    7 入札

    We are developing a trading application for which payments are to be made through block chain technology. Any one who has knowledge and experience on working with block chain may quote

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    7 入札

    I am looking for a person to do a copy of the UI/UX of the website [ログインしてURLを表示] For Peer to Peer lending software that would be on wordpress @ Http://[ログインしてURLを表示] Features: - On-boarding for companies and accredited investors - creation of Security token automated (similar to ploymath system) - Payment processing & fund management - Manage Equity, Debt, Securities, Cryptocurrencies -...

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    32 入札

    I want ERC20 tokens developed, if you can do that, please place a bid.

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    13 入札

    Looking for blockchain and crypto developer who can work on current already developed blockchain and make some adjustments to it. You must also be expert in creating wallets out of blockchain code and it will be a big plus if you have created ICO and Cryptocurrency Exchange sites.

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    17 入札

    I want to have a very basic application created to demonstrate basic usage of Hyperledger fabric. I want an application that allows users to send each other messages. 1. Needs to use Hyperledger Fabric 2. Every message that is sent would be an Asset 3. Ability to retrieve messages sent to you or sent by you 4. You only have access to the messages that are sent to you or you sent yourself I am ...

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    16 入札
    YEP COIN GATEWAY -- 2 4 日 left
    認証完了

    I am looking for a person to develop a Gateway for credit card and PayPal in order to pay a crypto currency. Communications with the wallet are done in RPC. The gateway will need to be integrated into a website.

    $624 (Avg Bid)
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    15 入札

    I am looking for a person to build the back-end of a portal that allows me to integrate my current clients and new clients, users, investors and companies to launch new STO's native to the platform. Similar to polymath. Currently I have the front-end with wordpress @ Http://[ログインしてURLを表示] Features: - On-boarding for companies and accredited investors - creation of Security token automated ...

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    22 入札
    Create a cryptocurrency (coin) 4 日 left
    認証完了

    Hi, I need a crypto coin. People should help to promote the coin and run the ICO successful. Payment will be released only after the ICO gets completed. Purpose of the coin will be discussed privately. I m planning to list that in YOBIT,i think it is free of cost. But not sure.(Please check). White paper also required. Please suggest ur designs and ideas to successfully run the ICO and to get list...

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    11 入札

    I have the source code for the project. Also it was completed almost. but I need to fix some bugs in there. If you have many experiences in iOS blockchain wallet app, please bid in here. I will discuss about it over chat.

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    15 入札
    block chain development 4 日 left
    認証完了

    need to hire a block chain developer to assist us on a project. we are building a website with many functionalities however we need to develop some apis that require knowledge in blockchain. Please note that if you get awarded this project expect to be occupied with us till the end of 2019

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    35 入札

    [Removed by Freelancer.com Admin] Only Looking for Blockchain Developers here. I AM NOT LOOKING FOR PEOPLE WHO BUILT WORDPRESS WEBSITE FOR BITCOIN. I AM LOOKING FOR AN ACTUAL BLOCKCHAIN DEVELOPER HERE. === Bid this project ONLY IF YOU HAVE ACTUALLY BUILD A PROJECT ON BTC NODE, ON SOLIDITY BEFORE. I don't need a WORDPRESS NULLED TEMPLATE FAKE DEVELOPER.

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    34 入札
    Blockchain Development 3 日 left
    認証完了

    Startup project Development of financial service on Rust Requirements: Blockchain expert Rust development experience

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    30 入札

    I have two files which will be translated from English to Korean. The content is about blockchain. I am looking for a Korean translator. Please note that the translator must be Korean. For more information, welcome to contact me.

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    23 入札

    In this android app I want to integrate a reward program based on a Crypto Currency ([ログインしてURLを表示]). The reward program would drive more engagement as it is based on crypto currency and users will have complete ownership of rewards as it is based on blockchain. We will be using a reward SDK provided by [ログインしてURLを表示] ([ログインしてURLを表示]) Before bidding please go through the *blockchain based rewar...

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    29 入札

    Blockchain Developer needed to develop a secure and decentralized file transfer application.

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    14 入札

    create and deploy erc20 token. Send ownership and tokens to me

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    11 入札

    Need a very simple site where users can download an mp3 file. They will have the choice of bitcoin, Ethereum or an Ethereum token to download and once payment is received they will receive download automatically. This system will work similar to iTunes but with cryptocurrency. The site will have a stylish, modern index page where the download will be found and a couple simple sub pages such as pri...

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    14 入札
    Token modeling 3 日 left
    認証完了

    For a token model for which I would to have critics and challenges, I am looking for someone with strong passion for blockchains/Token/Smart Contracts etc,, This is a job for someone who have passion than for someone who want to make money immediately.

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    10 入札

    We are looking for a blockchain developer who will be responsible for designing, implementing, and supporting a distributed blockchain-based network. Primary responsibility will be analyzing requirements, designing blockchain technology around a certain business model, and the building and launching of a blockchain network. You'll be assisting a team (two full stack developers) that has a &q...

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    23 入札

    Multiple Blockchain developers needed to contribute to various blockchain projects on repositories like github. We are a new blockchain company and are looking for developers. Payment will be based on hourly efforts, and prominent developers could be offered full time contracts. General terms: The developer is required to join the organization on github The submitted code must consist of clean ...

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    18 入札

    Good experience in monero or fork of monero is vital. Particularly interesting is experience of building and extending the std monero wallet (all versions - Linux/Mac/Windows)   Experience of testing and releasing hard (upgrade) forks, gitian builds and CI.

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    3 入札

    Node: We need one team/company 4-10 people for work this project Fullstack experence about Cryptocurrent and Revenue system. - Fund Bitcoin, Ethererum, USDT, BCH, TUSD ... - Requairement: + Complete this project on time deadline 2-3 week. + Design UI/UX Cyberpunk style, another better for crypto. + Whitepaper (Writer, Infographic ...) + Building Website (Lending page) + Building App (An...

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    59 入札

    A Blockchain Developer : Blockchain project collaboration offer ([ログインしてURLを表示]) ================================== The team leading the Wastechains project ([ログインしてURLを表示]) is eager to increase its strengths by welcoming new employees. The skill we are looking for is: - a Blockchain Developer The developer must take the open source source code on github We we do not wanta service provider. ...

    $8 / hr (Avg Bid)
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    5 入札

    We need a blockchain experienced for a long-term project

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    18 入札

    If you are a great writer able to provide engaging content on cryptocurency, blockchain, please feel free to place bid in this project. please don't bid without any prior experience on cryptocurrency, blockchain as well as lack of highly skilled writing ability. Paying INR 120 for each 600 words article. Thanks and regards.

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    11 入札

    Looking for a cryptocurrency experience web developer to sync our woocommerce store with a blockchain wallet to deliver items as orders are completed.

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    33 入札
    Chat app in blockchain 2 日 left
    認証完了

    My client would like to build chat app in blockchain. We need fast delivery so only those have done before to bid here. You have to show me what you have done with screenshots as proof. You may hide your client logo and name. Here is the detail (build in iOS and Android). Phase 1: Basic - Chat in text and audio message - Group chat (public and private) - IBM Watson Translator (API) - Chat m...

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    66 入札

    If you are a great writer able to provide engaging content on cryptocurency, blockchain, please feel free to place bid in this project. please don't bid without any prior experience on cryptocurrency, blockchain as well as lack of highly skilled writing ability. Paying INR 120 for each 600 words article. Thanks and regards.

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    7 入札

    Необходимо создать смарт контракт на базе Ethereum для проведения ICO подобное Ice Rock Mining ([ログインしてURLを表示]), разработка сайта ICO с кабинетом инвестора, все вопросы пишите мне

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    7 入札

    I need a blockchain developer to develop [ログインしてURLを表示]

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    18 入札

    Deploy Multi Org Hyperledger Fabric network with Kafka orderers (2 orderers, 3 Orgs - Each org has 3 peers) - Configure CA and MSP, etc...

    $227 (Avg Bid)
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    8 入札

    If you are a great writer able to provide engaging content on cryptocurency, blockchain, please feel free to place bid in this project. please don't bid without any prior experience on cryptocurrency, blockchain as well as lack of highly skilled writing ability. Thanks and regards.

    $4 / hr (Avg Bid)
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    12 入札

    I need an app for Android. I already have a drawing for it, I just need it built. I would like an application that only simulates transactions, as presented in the link. [ログインしてURLを表示] we want to find the right team for the development of this system in blockchain, using artificial intelligence, neural networks with chabot, after the approved simulator team will be responsible for the complete...

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    12 入札
    Hard fork of existing altcoin 17 時間 left
    認証完了

    Want to hard fork existing altcoin. Want to make a few simple changes. Need windows, Mac and Linux wallets. GitHub set up and open source explorer set up.

    $994 (Avg Bid)
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    24 入札
    Blockchain cryptocurrency web wallet 15 時間 left
    認証完了

    I need a new web wallet of single cryptocurrency. I need you to design and build it. blockchain

    $213 (Avg Bid)
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    6 入札
    Hyperledger Fabric - Use cases wanted 13 時間 left
    認証完了

    Hi there, I am willing to buy any completed blockchain solution (hyperdledger, ethereum, quorum, corda). I need the use case explanation and cost. Please post me any solution you have developed and you have the rights to sell. Thanks

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    22 入札

    A Blockchain Developer : Blockchain project collaboration offer ([ログインしてURLを表示]) ================================== The team leading the Wastechains project ([ログインしてURLを表示]) is eager to increase its strengths by welcoming new employees. The skill we are looking for is: - a Blockchain Developer Salary payment: We offer a base salary and participation in our token projects

    $8 / hr (Avg Bid)
    $8 / hr 平均入札額
    12 入札

    Blockchain project collaboration offer ([ログインしてURLを表示]) ================================== The team leading the Wastechains project ([ログインしてURLを表示]) is eager to increase its strengths by welcoming new employees. The skill we are looking for is: - a Blockchain Developer Salary payment: We offer a base salary and participation in our token projects

    $539 (Avg Bid)
    $539 平均入札額
    13 入札

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