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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    Track & Trace blockchain and IoT 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    I just want to talk to a track & trace blockchain specialist We are looking for a consulting partner, Our project is in progress, our project manager is from New Delhi, India. We are specialists in blockchain anchors, and we want to shorten the path to Track & Trace. We want to do the tracking by QRcode (via APP) will be sent to Gelocation and anchored in the Blockchain together with H...

    $10 - $30
    $10 - $30
    0 заявки
    Blockchain 6 дні(-в) left

    I need a blockchain developer for my project

    $15 / hr (Avg Bid)
    $15 / hr Сер. заявка
    1 заявки
    BlockExplorer Developer -- 2 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    I'm going to modify iquidus explorer. I want to add 2 pages for my coin explorer like the following. [увійдіть, щоб побачити URL] [увійдіть, щоб побачити URL] The developer should know the pivx proposal system and iquidus block explorer. *** Please write "Pivx Proposla Iquidus Explorer" on the top of your bid proposal. Else I won't message you. *** Thanks. Cheers.

    $639 (Avg Bid)
    $639 Сер. заявка
    4 заявки

    I need an ERC20 token created, with a matching wallet app, that has the ability to stake the token for rewards. The wallet app must contain 5 of the top crypto currencies, with a simple buy/sell function, along with having the token you will create. The coin that will be created needs to be able to be "staked" on the wallet, so that users can gain rewards for holding a balance. The...

    $1455 (Avg Bid)
    $1455 Сер. заявка
    16 заявки
    Looking for a senior Ethereum blockchain developer 6 дні(-в) left
    ПІДТВЕРДЖЕНО

    Thank you for taking time to read our job post. We are a tech company located in NY, we are excited about blockchain and the different things blockchain can do for us. We want to hire a full time developer to help us create, manage and deploy smart contracts. We have a few samples of smart contracts we like and whats awesome is, its all open source so its simple to R&D if you have the experien...

    $25 - $50 / hr
    Прихований
    $25 - $50 / hr
    16 заявки

    We need a Landing Page with the Dash Wallet ([увійдіть, щоб побачити URL]) integrated for payments in Dash Cryptocurrency to be made directly on the page.

    $515 (Avg Bid)
    $515 Сер. заявка
    19 заявки
    Vipex Crpytocurrency Whitepaper 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    Vipex is a cryptocurrency exchange with it's own token, Vipex Coin. We are building a cryptocurrency exchange. What we want is a description of our exchange, our features, our roadmap and our coin. For example the Freelancer can check other cryptocurrency exchange whitepapers, like Binance. I have already started the writing of the whitepaper. I prefer someone who has create whitepaper before...

    $544 (Avg Bid)
    $544 Сер. заявка
    25 заявки
    debug a smart contract 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    I have a smart contract written in solidity. it is only 65 lines long. it is a crowdsale contract.

    $382 (Avg Bid)
    $382 Сер. заявка
    4 заявки
    Video streaming for Blockchain / Crypto 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    We would like a blockchain specialist to help us make and enable a video streaming platform by extending our proposed smart contract on the ethereum blockchain platform It must allow - Verification of video purchase - The viewer will send ethereum ether to video owner via our smart contract , the viewer should be able to send verification data to video owner (hosted by him via P2P network o...

    $1899 (Avg Bid)
    $1899 Сер. заявка
    5 заявки
    Config laravel echo server 5 дні(-в) left

    I need to config laravel echo server for my project to make it work properly

    $19 / hr (Avg Bid)
    $19 / hr Сер. заявка
    18 заявки
    Digital Token -- 2 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    I want to built a digital token, name Rei Coin, we have already the DESIGN of the coin. The coin will be not listed.

    $1231 (Avg Bid)
    $1231 Сер. заявка
    12 заявки
    BlockExplorer Developer 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    I'm going to modify iquidus explorer. I want to add 2 pages for my coin explorer like the following. [увійдіть, щоб побачити URL] [увійдіть, щоб побачити URL] The developer should know the pivx proposal system and iquidus block explorer. *** Please write "Pivx Proposla Iquidus Explorer" on the top of your bid proposal. Else I won't message you. *** Thanks. Cheers.

    $27 / hr (Avg Bid)
    $27 / hr Сер. заявка
    10 заявки
    BUILD BITCOIN MACHINES 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    I HAVE VERY CHEAP ELECTRICITY SO NOW I WANT TO BUILD OR BUY CHEAP BITCOIN MACHINES. I WOULD EXCEPT PARTNERS ALSO. I AM US BASED

    $140 (Avg Bid)
    $140 Сер. заявка
    4 заявки
    Easy Transfer Between Crypto Exchanges. 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    Looking for a simple program that can simply and easily transfer funds of specific coins in my wallets between Binance and Kucoins.

    $655 (Avg Bid)
    $655 Сер. заявка
    6 заявки
    Microservices, golang, React, blockchain for ecommerce 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    Looking for a talented developer who has experience into multi vendor ecommerce with template editor panel. SaAS need to have those skills mob dev micronaut, golang java laravel react and redux

    $10 / hr (Avg Bid)
    $10 / hr Сер. заявка
    11 заявки
    Online videos for students 5 дні(-в) left
    ПІДТВЕРДЖЕНО

    Looking for tutors who can create videos for the following topics. >Digital Marketing >Scala Programming >Julia Programing >Block chain >Abacus The remuneration for the work is like the tutor will get twenty five percent of the money for each student joining .It will be a long term investment [увійдіть, щоб побачити URL] tutors who can create such kinds of video lessons For more de...

    $405 (Avg Bid)
    $405 Сер. заявка
    3 заявки
    Scripting Expert 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    I have a bot that is currently hooked up to binance.com. It was built using Electron, mongodb and is connected to a server on digital ocean. Some of the tasks would be connecting the bot to the USA site of [увійдіть, щоб побачити URL], improving upon the current algorithms used to make buys, adding additional features(improve pings, results, balance and order tables), add additional indicators, ne...

    $174 (Avg Bid)
    $174 Сер. заявка
    4 заявки
    block chain integration to video 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    block chain integration to video

    $4 / hr (Avg Bid)
    $4 / hr Сер. заявка
    1 заявки
    Build me an Arbitrage 4 дні(-в) left

    I need an Arbitrage system like [увійдіть, щоб побачити URL] Can you?

    $640 (Avg Bid)
    $640 Сер. заявка
    5 заявки
    Technical book writing 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    Minimum 300 pages. Need technical person well versed with Cyber Security, AI and ML. How these 3 can help make the IOT system secure. Graphics has to be there in the book.

    $393 (Avg Bid)
    $393 Сер. заявка
    7 заявки
    Pasarela de Pagos Cripto + Fiat 4 дні(-в) left
    ПІДТВЕРДЖЕНО

    Desarrollar una pasarela de pagos que reciba criptomonedas y Dinero Fiat.

    $1329 (Avg Bid)
    $1329 Сер. заявка
    9 заявки

    Smart contract project Combination of these projects into one: 1) Forsage: login page [увійдіть, щоб побачити URL] insert 113501 to log in, smart contract [увійдіть, щоб побачити URL] 2) Million money: login page [увійдіть, щоб побачити URL] insert 579984 to log in, smart contract [увійдіть, щоб побачити URL] The second smart contract need to be changed with mid-levels and automation to upgrade ...

    $1209 (Avg Bid)
    $1209 Сер. заявка
    18 заявки

    We want to build a smart contract similar to Proof Of Weak Hands. If you have built these type of smart contracts in the past and we can see them and audit them please contact me about working with us on our POWH style contract.

    $611 (Avg Bid)
    $611 Сер. заявка
    7 заявки
    setup cardano stake pool 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    setup full cardano staking pool on cloud

    $126 (Avg Bid)
    $126 Сер. заявка
    3 заявки
    Smart Contracts Requirement 3 дні(-в) left
    ПІДТВЕРДЖЕНО

    We have built a blockchain in Hyperledger Fabric and we need smart contracts created to implement the scenario detailed below. We would liked Open Source Cicero Templates used as per the attached documentation. Further information at: [увійдіть, щоб побачити URL] We need the smart contracts created that will allow the ownership of real assets to be controlled digitally. As such, on the bloc...

    $820 (Avg Bid)
    $820 Сер. заявка
    21 заявки
    Revamp my website 2 дні(-в) left

    My team and I are building in a niche industry and we're looking for the right individual to help us fine time our website. Seeking a front-end developer familiar with blockchain technology, web3, and building on ethereum.

    $32 / hr (Avg Bid)
    $32 / hr Сер. заявка
    27 заявки
    Crypto Exchange With Invest Program 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    Exchange 1. Cryptocurrency exchange with three(3) trading pair as follows: BTC-Others, ETH-Others, USDT-Others # BTC/ETH/USDT ---- 30 coin trading pair. 2. All market trading should look like genuine. To do that in API you should show other exchange data (as public can realize that this data is genuine trading ongoing) 3. In exchange user can see the last 24 hour total trade volume for every pa...

    $1649 (Avg Bid)
    $1649 Сер. заявка
    14 заявки

    Статья обьемом не менее 500 слов за 10$

    $20 (Avg Bid)
    $20 Сер. заявка
    9 заявки
    need blockchain developer to develop MLM website 2 дні(-в) left
    ПІДТВЕРДЖЕНО

    as I need MLM website using Ethereum Smart Contract

    $250 - $750
    Прихований
    $250 - $750
    14 заявки

    I need you to develop a cryptocurrency coin like bitcoin. I do not want tokens on Ethereum.

    $4565 (Avg Bid)
    $4565 Сер. заявка
    12 заявки

    Need a Blockchain Developer...

    $587 (Avg Bid)
    $587 Сер. заявка
    18 заявки
    Build an end to end recruitment automation product 1 день left
    ПІДТВЕРДЖЕНО

    I have all the specs that I can send to the potential freelancer.

    $2509 (Avg Bid)
    $2509 Сер. заявка
    11 заявки

    looking for a experienced Blockchain develooer to perform the tasks of attached file.

    $1656 (Avg Bid)
    $1656 Сер. заявка
    7 заявки

    I want to build a digital economy based on supply chain (with inventory re-order system, point of sales menu)that fits any business,any industry have you done also ewallet/crypto exchange? for new account , the applicant need to hold his passport, make a selfi and upload with address proof , right? i want to branch one more step down for 'corporate user' in crypto exchange/ewallet, n...

    $4053 (Avg Bid)
    $4053 Сер. заявка
    35 заявки
    Urgent: Geth Champion for solving issues on POA blockchain 1 день left
    ПІДТВЕРДЖЕНО

    POA Blockchain has stopped. We like somebody to recover.

    $27 / hr (Avg Bid)
    $27 / hr Сер. заявка
    5 заявки
    (Remote) Online Research RESIDE IN THAILAND 1 день left
    ПІДТВЕРДЖЕНО

    Note: Please apply only if you reside in Thailand Remitano: One of the largest peer-to-peer (p2p) cryptocurrency trading platforms in the world, currently serving users in more than 30 countries. The platform provides an escrowed p2p crypto marketplace allowing users to buy, sell and swap crypto and fiat easily and safely. Remitano is a market leader in the p2p platform space, featuring an intuit...

    $476 (Avg Bid)
    $476 Сер. заявка
    4 заявки

    I have a lot of issues. If you can fix them, I have a great long term opportunity for you.

    $522 (Avg Bid)
    $522 Сер. заявка
    23 заявки

    Build a Crypto Decentralized Exchange like kyberswap

    $962 (Avg Bid)
    $962 Сер. заявка
    9 заявки
    i need a blog writter 14 годин(-и) left

    I need you to write some articles.

    $6 / hr (Avg Bid)
    $6 / hr Сер. заявка
    50 заявки
    Looking for p2p exchange 12 годин(-и) left
    ПІДТВЕРДЖЕНО

    Hi i am looking for p2p exchange script kindly bid which have already project which is ready made. Thanks

    $1000 (Avg Bid)
    $1000 Сер. заявка
    8 заявки
    Bitcoin Lightning Network 11 годин(-и) left

    Building the network and showing on screen the network nodes, the channels with their balances, and the transactions using the testnet to show the behavior of the network (HTLC, Onion Protocol, etc...).

    $22 / hr (Avg Bid)
    $22 / hr Сер. заявка
    8 заявки

    Топ-статті спільноти Blockchain