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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    i need to introduce blockchain to my code. we will use it when we do connection with two different players in supply chain. like supplier distributor or to other supplyer. also we have to put specific steps in the supply chain like in reception and end of production . also we need to know the cost that we need to pay for the blockchain (fingerprint in each step the way we do it and implement it)

    $16 (Avg Bid)
    $16 Ср. ставка
    2 ставки

    We are a Bangalore based company dealing with project management.

    $4202 (Avg Bid)
    $4202 Ср. ставка
    14 ставки
    Blockchain Consultant 6 дней(-я) left
    ПОДТВЕРЖДЕН

    Hello We are having a p2p crypto exchange [войдите, чтобы посмотреть URL] we are looking for a Blockchain Expert to Advocate on suggesting new features and such things.

    $496 (Avg Bid)
    $496 Ср. ставка
    11 ставки

    Hello, guys, Who we are: I am a delegate of a new Blockchain startup. Our mission is to create the most secure software for working with modern blockchain technologies. What we are searching for: Full-stack developer with extensive experience in both: web and Blockchain development technologies. A guy, who has experience in working as Senior/Lead developer at least for 3-5 years. If you have exp...

    $51 / hr (Avg Bid)
    $51 / hr Ср. ставка
    12 ставки

    i need to introduce blockchain to my code. we will use it when we do connection with two different players in supply chain. like supplier distributor or to other supplyer. also we have to put specific steps in the supply chain like in reception and end of production . also we need to know the cost that we need to pay for the blockchain (fingerprint in each step the way we do it and implement it)

    $23 (Avg Bid)
    $23 Ср. ставка
    3 ставки

    traceability system where we include block chain.

    $20 (Avg Bid)
    $20 Ср. ставка
    2 ставки

    We would like to request the production of a wallet that allows BTC deposit and withdraw using blockchain technology and an admin panel that can manage the deposit and withdrawal. BTC is the only currency we handle, and we would like to produce on a blockchain basis. We would like to request development including the API. Please refer to below for the model, [войдите, чтобы посмотреть URL] >...

    $1433 (Avg Bid)
    $1433 Ср. ставка
    35 ставки

    I want to add a pool on my website for gathering computing power of multiple users and work on same task.

    $119 (Avg Bid)
    $119 Ср. ставка
    2 ставки
    Develope ICO model process script page 5 дней(-я) left
    ПОДТВЕРЖДЕН

    Hello, What I'm looking for is something like an ICO payment page, a page that works like this: 1) A form where user insert ERC-20 token address and amount, then button "Continue" 2) Pressing "Continue", will appear on screen the amount that need to be paid in ETH based on the exchange rate owner decide for the token and the address where ETH has to be sent 3) After ETH pa...

    $622 (Avg Bid)
    $622 Ср. ставка
    17 ставки
    Block chain 5 дней(-я) left
    ПОДТВЕРЖДЕН

    Want to create new crypto currency reparation goal need someone to be able to also write a smart contract for its and also wanted to be based on investors obviously

    $1776 (Avg Bid)
    $1776 Ср. ставка
    28 ставки

    I need a personalized Linux OS distribution image for clients, web interface for managing, admin backend, etc. I have my own servers to host it. I have to be able to add or remove mining softwares, pools and other settings on the admin back end, control my customers balance, etc. it has to support both GPU and CPU mining simultaneously.

    $1204 (Avg Bid)
    $1204 Ср. ставка
    16 ставки
    Blockchain Expert Needed 4 дней(-я) left
    ПОДТВЕРЖДЕН

    seeking a blockchain developer. Please feel free to contact me.

    $1225 (Avg Bid)
    $1225 Ср. ставка
    27 ставки
    Crypto CD Art 4 дней(-я) left

    What is Crypto CVD Art? Crypto CVD Art is a marketplace of unique and rare stickers all over the world. Born from the idea of ​​the Coronovirus pandemic, it wants to bring more unique than rare collectibles in your homes. Nice collectibles with different types of rarity will be the result of a fantastic and accurate selection model. Based on the Etherum blockchain, it allows you to buy and rese...

    $624 (Avg Bid)
    $624 Ср. ставка
    9 ставки
    Build Ethereum Smart Contract: Bounty 4 дней(-я) left
    ПОДТВЕРЖДЕН

    I need a form for creating and managing a reward-paying bounty smart contract using Ethereum (some links below to see similar Ethereum bounty projects/tools). I will provide the exact specifications to the freelancer(s) selected. Please share experience with Ethereum smart contracts and/or bounty projects. You should be familiar with openzeppelin, ER20, and security best practices. LINKS: [в...

    $15 / hr (Avg Bid)
    $15 / hr Ср. ставка
    11 ставки
    Hyperledger Fabric developer 3 дней(-я) left

    Developer needed to alter some aspects of a HLF1.4+ instance that will house music and track file usage.

    $1194 (Avg Bid)
    $1194 Ср. ставка
    15 ставки

    Hello, I want to understand how can i developp on the Copay app(bitpay) and their Bitcoin Wallet Service! I need a real blockchain expert..

    $264 (Avg Bid)
    $264 Ср. ставка
    9 ставки

    I want to build a block chain based web application using react js UI, Which interim implements the smart contracts.

    $437 (Avg Bid)
    $437 Ср. ставка
    16 ставки
    Hyperledger Caliper Script for Sawtooth 2 дней(-я) left
    ПОДТВЕРЖДЕН

    Hi- I want to test my network for hyperledger sawtooth and need a script that can be manually configured to run stress testing for hyperledger sawtooth using hyperledger caliper. I want a script like [войдите, чтобы посмотреть URL] (and parameters in front the command) and I give different scenarios to test the sawtooth. please let me know if you can create a documentation and script for using ca...

    $143 (Avg Bid)
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    4 ставки

    We are looking for blockchain engineers - front end, back end, on and off chain - to consolidate my idea for NFT marketplace which will be a basis for EverythingStore in the emerging virtual reality space. For the first iteration, we will start with an app for NFT marketplace, putting some creative and IP assets on chain, allowing users to register them and sell and trade them.

    $36 / hr (Avg Bid)
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    35 ставки
    A Blockchain Project 2 дней(-я) left
    ПОДТВЕРЖДЕН

    This is a Blockchain Project based on Sia Protocol. Anyone interested can message me to get more info

    $947 (Avg Bid)
    $947 Ср. ставка
    8 ставки

    If you are experienced in the blockchain development with Hyperledger Fabric and Nodejs, please apply to this job. When submitting the proposal, including the projects that you have worked with Hyperledger Fabric. I will discuss and share the details with the right candidate. Regards, PS: if you have experience, please answer the following questions. 1. What kind of network in creating network c...

    $587 (Avg Bid)
    $587 Ср. ставка
    8 ставки
    Desarrollar Sitio Web PWA -- 2 2 дней(-я) left
    ПОДТВЕРЖДЕН

    Necesitamos desarrollar Sitio web en el formato PWA utilizando tecnicas MEAN, el sitio web debera funcionar como tienda en el cual podamos mostrar y vender nuestros productos, requerimientos de proyecto en Archivo Adjunto

    $553 (Avg Bid)
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    27 ставки

    If you are experienced in the blockchain development with Hyperledger Fabric and Nodejs, please apply to this job. When submitting the proposal, including the projects that you have worked with Hyperledger Fabric. I will discuss and share the details with the right candidate. Regards,

    $662 (Avg Bid)
    $662 Ср. ставка
    13 ставки
    Blockchain Explorer -- 2 1 день left
    ПОДТВЕРЖДЕН

    Hello, we are searching for a skilled developer in order to work on our Blockchain Explorer UI. Please save us time if you are not experienced!

    $200 (Avg Bid)
    $200 Ср. ставка
    16 ставки
    Help me build a PVIX fork 3 часов(-а) left
    ПОДТВЕРЖДЕН

    Need someone who is able to write me a good tutorial of forking PVIX coin ! I don't want you to build the fork and give it to me. I wan't you to show me or write me each steps.

    $410 (Avg Bid)
    $410 Ср. ставка
    8 ставки
    Blockhain in e-commerce Заканчивающийся left

    Hi, I looking for the best inovation solutions in blockchain for e- commerce. Pls contact on priv.

    $274 (Avg Bid)
    $274 Ср. ставка
    10 ставки

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