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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    27 δουλειές που βρέθηκαν, με τιμές EUR

    hi I'm Faten I'm senior student CIS major I work on my senior project and I need a lot of help and someone have good experience in python and blockchain concept. the idea of my project is too simple I have already the most of important part of the code but just o want to add more features to the project. the project needs to build: - 2 web GUI and connect to the blockchain - generates...

    €166 (Avg Bid)
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    PEATIO customization 6 μέρες left

    i am looking to customize peatio so that orders are settled onchain after trade has occurred with something like lamden clove , and deploy to AWS . the finished product will be a DEX

    €1099 (Avg Bid)
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    Basic Simulation of Private Block-chain Environment 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Basic Simulation of Private Block-chain Environment. Concurrency & bitcoin not required. Simulate the basic definition of block-chain. Growing list of records, called blocks, which are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. (an open, distributed ledger concept.) You may provide me already available implement...

    €37 (Avg Bid)
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    i want a masternode software 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I need an expert to develop a masternode software for me. I would like this software to be developed for Windows using Java or any other compatible programming language. software features include coin, masternode, and staking. Interested developer is required to be well experienced in crypto-currency, masternode and blockchain technology in general.

    €443 (Avg Bid)
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    12 προσφορές
    Edit UI of Block explorer and setup 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We are looking for a blockexplorer similar to this [κάνε είσοδο για να δεις το URL] There is open source code for this but needs a few ui changes [κάνε είσοδο για να δεις τ&...

    €153 (Avg Bid)
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    8 προσφορές
    Fix issues with bitexchange crypto script & site 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We are looking for a developer with proven knowledge in the installation/setup of BITEXCHANGE ([κάνε είσοδο για να δεις το URL]) / crypto exchange The exchange script is installed, but we need some changes done, and hopefully have a long term relationship with a development team. ...

    €190 (Avg Bid)
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    I am located in the United States. We have many regulations that make it difficult to do an ICO. Looking to establish an ICO from a cryptocurrency friendly Country. Helpful if you have experience marketing cryptocurrency ICO"s

    €582 (Avg Bid)
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    We need to build or fork a blockchain 4 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We are looking for blockchain developers to help us build or fork a blockchain for our new project.

    €2385 (Avg Bid)
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    Blockchain data storage 4 μέρες left

    We need to build a one stop shop of real estate with a decentralized storage (in order to allow users to upload all documents required to set up a loan) like [κάνε είσοδο για να δεις το URL], [κάνε είσοδο για ν...

    €410 (Avg Bid)
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    Build ethereum wallet address generator - URGENT 4 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I need to create multiple address on myetherwallet via automation. I need it to be done today. If you can't finish in next few hours, please don't post.

    €43 (Avg Bid)
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    Implement Crypto Payment Into A Game - Blockchain Project 4 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I have a very simple and basic car game where people can upgrade cars by paying in $. I would like to replace this payment method with crypto. Please PM and I will send more details. Thanks!

    €497 (Avg Bid)
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    Need to build ERC20 token listing option in admin panel. 3 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I need to build a ERC20 token listing features in a existing crypto exchange. Main goal is to list unlimited ERC20 token for trade/deposit/withdrawal. And need to set a option to make any token as a base pair. Our peer 2 peer trading platform based on codeigniter. I need an experienced, commited and long term relation maker developer. I have currently 4 ongoing task on that exchanges.

    €653 (Avg Bid)
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    Blockchain help needed 3 μέρες left

    Need consultation on blockchain project that I have. Contact me for more details.

    €171 / hr (Avg Bid)
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    1) Must need to build new blockchain - probably ERC-20 token or coin - must be based on proof-of-work (mineable) 2) Hybrid app is needed 3) Website update based on this must be done

    €1635 (Avg Bid)
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    Cryptocurrency Exchange, Peatio 3 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Know [κάνε είσοδο για να δεις το URL] , able to build this fast, setup server, security and maintenance.

    €1278 (Avg Bid)
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    Hi, We are looking for Blockchain Expert - Developer to prepare Use Case document , Presentation and Proof-of-concept for one of our client in HyperLedger or any other blockchain technology. We are at present looking for following deliverables : - Discuss and understand our requirements. - Suggest best Blockchain Technology for our USE Case scenario. - Prepare high level Use Case document -...

    €302 (Avg Bid)
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    Blockchain - P2P Exchange 2 μέρες left

    I need a new website. I need you to design and build my online store.

    €862 (Avg Bid)
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    create an android app - blockchain knowledge needed! 2 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    some example [κάνε είσοδο για να δεις το URL] Money Cube - PayPal Cash & Free Gift Cards [κάνε είσοδο για να δεις το URL] [κάνε εί&si...

    €479 (Avg Bid)
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    php sending money using blockchain api 1 μέρα left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We want to integrate blockchain send money to make automatic payment to our users we want script in php to do it. only bid if you have experience.

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    10 προσφορές
    Smart Contract for Decentralized Exchange Ethereum 1 μέρα left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Hi we need a decentralized exchange smart contract built. We also need some customization's which would be above any average solidity developers skill set. We would like someone who has worked on decentralized exchanges, or smart contract development with references to their code. Please ensure when you bid to add that.

    €1112 (Avg Bid)
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    Requirements: 1) Must have solid experience in web and software development. Work will be in C# with the latest .net version with NodeJS and other requirments (PHP AND RUBY PROPOSALS WILL NOT BE TAKEN.) 2) Must have a solid background in Security and Cyber Security. 3) Must know how to create full nodes for the coins and tokens listed and offer liquidity solutions. 4) This is only for experienced ...

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    i need a application design for health insurance claiming using blockchain technology.

    €141 (Avg Bid)
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    Smart Asset with Ride on Waves Coin 13 ώρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I wanna make a smart asset.. I have a idea but dont know RIDE code language.

    €460 (Avg Bid)
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    SMART CONTRACT AUDIT, FIXES AND UPGRADE 13 ώρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    AUDIT: We need Audit for our smart contract. FIXES: 1. We have working smart contract on mainet and testnet 2. Couple of functions are not work for me: 1) Transferfrom 2) Burnfrom 3) Frozen account still able to transfer token - (need to check and fix if needed) Limited account still able to transfer tokens above the address limits - (need to check and fix if needed) 4. We need to add couple add...

    €518 (Avg Bid)
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    Build blockchain to verify/certify documents 10 ώρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Need to build a network with application layer for - DAPP (FE) - API Layer (NodeJS) - Blockchain (Ethereum) > Credentials (ERC721) - Certificate Owner; store data HASH > Hierarchical (ERC721) to include historical certificate link > Payment (ERC20) > Users - MongoDB > Store the actual info and version of resume (full versioning)

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    EduxLabs is looking freelancer trainer on different domains. we conduct 5/10 training program in engineering colleges. Training Duration: 2/5/10 Days Mode of Training : offline Training Hour: 5 to 6 Hour each day Location: (for India only) we conduct offline training program like campus based. so location will vary according to college wise. Required Skills: AWS, AI & ML, IoT, Hadoop, Block...

    €361 (Avg Bid)
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    Build a CryptoCurrency Exchange. 19 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    we want to build a cryptocurrency exchange not token exchange not ICO website crypto exchange BTC BCH ETH LTC XRP NEO USDT TRX all coins should be able to trade with each other as pairs. *** you can download requirements document and read that in depth and word by word *** if you want to have a chance to choose as this project freelancer, you should read t...

    €5311 - €8852
    Προεξέχον Σφραγισμένο
    €5311 - €8852
    94 προσφορές

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