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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    32 δουλειές που βρέθηκαν, με τιμές EUR
    Create article for crypto project 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    Hi, I need someone to create a well consctructed article to explain a crypto / blockchain project.

    €16 (Avg Bid)
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    We need to fork the ethereum blockchain and release as our own blockchain with an additional feature to the blockchain. Forking the ethereum blockchain with the change of creating a wallet in blockchain to collect fee from every transaction and at beginning of month distribute those fees to coins holder based on the percentage of coins they hold. For example i hold 10% of coins in my address the...

    €1515 (Avg Bid)
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    We are early-stage logistics startup based in Bangkok, Thailand which has been operating for more than a year in Southeast Asia. Our company are in fund-raising stage ready to scale up and are looking for skillful and talented people to join our team. If you are interested, feel free to contact us. High Payoffs, Big Equity and Big investors. Qualifications: 1. Specializing in back-end, software e...

    €13633 (Avg Bid)
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    40 προσφορές
    build a trading simulator on an existing coin trading terminal 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    i will like to build a trading simulator on an existing coin trading terminal script, kindly note that developer must be open minded, have work on similar jobs, work focused, willing to build a long term business relationship before you bid on this project.

    €144 (Avg Bid)
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    5 προσφορές

    Need A Cryptocurrency Website FrontEnd Developer.....I want to redesign my Cryptocurrency exchange website!

    €192 (Avg Bid)
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    22 προσφορές
    Live Chat Support - Team - Technical 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    FREELANCERS FROM VIETNAM or PHILIPPINES ONLY Looking to set up a chat support team for technical services. Only experienced BPO professionals needs apply, looking for 5-10 full time staff. I will most likely be contacting you on this job. Details of the project will only be made available over the video call. I have 20 years of BPO experience, testing freelancer for my sister's busine...

    €3 / hr (Avg Bid)
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    Write a technical plan 6 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    This technical plan is for the a solar blockchain development. The purpose is of this plan is to present to software development team to develop. The blockchain will gather energy consumption and generation information from solar energy systems installed on user buildings. The data collected will be used to calculate how much tokens are to be awarded to energy producers. The preferred blockchai...

    €365 (Avg Bid)
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    31 προσφορές
    stellar Developer 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    i am looking for someone who have worked on stellar ( crypto ) . more details will be shared later . Thanks

    €1972 (Avg Bid)
    €1972 Μέση Προσφορά
    17 προσφορές
    Build Crypto Wallet 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I need a lightweight multi-currency wallet. This wallet will NOT have to download the entire chain for all the currencies in this wallet. This wallet will run on Windows, IO, Android and Other Operating systems. The user should be able to switch between the coins and utilize the features of each wallet. 1. Bitcoin Private (BTCP) A. This wallet MUST be able to utilize both Transparent (b) and Shi...

    €840 (Avg Bid)
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    Build A Simple Crypto Coin for me, can be a Hardfork 5 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I need a bitcoin hardfork developed and set up as a mineable coin. Everything else will be exactly the same as the original bitcoin but larger blocks and it will be forked at a block just before segwit. Need it all set up and tested with Linux, windows and Mac wallets. It can be a Zcash hardfork as well so it need to be Bitcoin or Zcash, I mean we will decide it with the discussion. You are respon...

    €646 (Avg Bid)
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    11 προσφορές

    I am looking for a PHP/MySQL expert that has full knowledge of coding using PHP with the EOS Blockchain. I want a simple PHP script created that will: 1. create a EOS Transaction (with memo) by simply sending $0.001 EOS from my ESO Wallet #1 to my EOS Wallet #2 2. get the completed ESO transaction ID and insert in MySQL database Here is how I see it working: - you create a php page with si...

    €1105 (Avg Bid)
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    19 προσφορές

    Need Modifications done to the EOS/BTS Graphene blockchain. Need two smart contracts written and compiled. Must be experienced on this Blockchain. Require by default to make every transaction into stealth mode. Require an auto-boot up system script in Vitual tmux terminal mode or other, if a server goes down with Blockchain start, cli-wallet started, API started. faucet started in 4 different wind...

    €606 (Avg Bid)
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    Needs to hire 10 Freelancers You will be working with SLP tokens. If you’re not familiar with SLP yet, it’s okay. If you’re a capable developer you can learn it as we go. Javascript/typescript backend Either one is a must. It would be good if you have experience with charts/graphs. You’ll be working on a variety of projects as we go on, starting with an SLP “Mint&rdqu...

    €17 / hr (Avg Bid)
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    Backend Developer 5 μέρες left

    Cryptocurrency exchange Chaincreator ([κάνε είσοδο για να δεις το URL]) is looking for a backend developer for its vault product with strong DevOps skills. Responsibilities • Collaborate as a full-time member of the dev team. • Analyze requirements and propose solutions, ...

    €31 / hr (Avg Bid)
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    implementation of keccak mining algo on mainnet 4 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    project is to implent a keecak miner on mainnet that will work with a keecak Asic miner that is selling on the market

    €1347 (Avg Bid)
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    10 προσφορές
    Smart Contract Supply-Chain Management Website (Node, Solidity) 3 μέρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I would like some help in building a website using solidity with a timed smart contract that manages the transactions and notes the ownership changes of the 4 players (producer, transport, wholesale, consumer) to ensure transparency of object(for instance apple)'s exchange through the supply chain. I am skilled in web-development and am mostly looking for help with how to work with the smart ...

    €12 / hr (Avg Bid)
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    Italiano realizzazione di una applicazione che utilizza la blockchain Digibyte ( digi-id + pagamento con digibyte ). La webapp deve essere un semplice e-commerce fra utenti vicini fra loro (es: max 10 km o 7 miglia - geolocalizzazione necessaria ), tramite una fotografia di un oggetto usato o nuovo ( una solo ) , con pagamento immediato tramite Digibyte e ritiro a mano dell'oggetto. preferib...

    €3973 (Avg Bid)
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    Ico, token, blockchain 2 μέρες left

    I need blockchain expert, blockchain developer for a good project!

    €3755 (Avg Bid)
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    37 προσφορές

    I am looking for motivated freelancer to build me a Stable coin such as Tether (USDT) if you are Blockchain devolper then you already know that it's running on OmniLayer [κάνε είσοδο για να δεις το URL] and it can be duplicated however we need our own Blockchain and backend. So...

    €696 (Avg Bid)
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    15 προσφορές

    Someone who has already been integrated liquidity API of an renowned exchange like binance or kraken or any other established one. 1 week deadline is there. My existing exchange is Angularjs based.

    €1019 (Avg Bid)
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    10 προσφορές
    €315 Μέση Προσφορά
    6 προσφορές
    Need to create cryptocurrency 1 μέρα left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I need you to develop some software for me. I would like this software to be developed.

    €262 (Avg Bid)
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    15 προσφορές
    Azure Blockchain Expert 1 μέρα left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    We are looking at using Azure Blockchain Data Manager with Azure Service Bus and Azure Events Grid to exchange data between multiple organisations (parties) working on the same project Someone who has worked with Azure blockchain or can work on it for sure should apply

    €589 (Avg Bid)
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    8 προσφορές
    Build a website to monitor crypto dapps 1 μέρα left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I want to build a website which monitors crypro dapps - volumes, transactions, number of players. The site should be a directory where the dapp is listed and can be filtered to show different views. I can show working example of what I want. MUST have experience working on crypto projects and blockchain.

    €868 (Avg Bid)
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    58 προσφορές
    Remodify Bitcoin Wallet Website 1 μέρα left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I need an existing bitcoin wallet website rebuilt. I need you to design and build I need you to design and build my personal website.

    €525 (Avg Bid)
    €525 Μέση Προσφορά
    41 προσφορές
    Build a blockchain based YouTube alternative network 1 μέρα left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    This is a project to build a platform similar to YouTube, which is based off blockchain technologies, and has a fair payment system to creators and opt-in ad viewing from users. *BTW no upfront pay its a % of all potential earnings in the future*

    €45 / hr (Avg Bid)
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    node expert blockchain 1 μέρα left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    need expert blockchain node to buld bitcoin node to my wallet . Hello I'm thinking to buy wallet but in these wallet I have to find node expert of blockchain to uplaod it so the price of project will not much becouse he just install the node and help me to start my project and install in my server . please write how many houre it take from you to know my budget .Thanks

    €8 / hr (Avg Bid)
    €8 / hr Μέση Προσφορά
    9 προσφορές

    I am looking for motivated freelancer to build me a Stable coin such as Tether (USDT) if you are Blockchain devolper then you already know that it's running on OmniLayer [κάνε είσοδο για να δεις το URL] and it can be duplicated however we need our own Blockchain and backend. So...

    €404 (Avg Bid)
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    11 προσφορές
    Build A Simple Stable Crypto Coin for me and List on Exchanges 12 ώρες left
    ΕΠΙΒΕΒΑΙΩΜΕΝΟ

    I am looking for motivated freelancer to build me a Stable coin such as Tether (USDT) if you are Blockchain devolper then you already know that it's running on OmniLayer [κάνε είσοδο για να δεις το URL] and it can be duplicated however we need our own Blockchain and backend. So...

    €486 (Avg Bid)
    €486 Μέση Προσφορά
    11 προσφορές
    Building A PIVX Fork 6 ώρες left

    I am attempting to build a PIVX fork. I'm able to change all the params I want, but need guidence on how to generate the Merkle Root Hash and Genesis block hash. I am interested to learn HOW to do this. Not have it done for me. Again, this is only to learn how to generate the Merkle Root and Genesis block hashes. I will probably need more help in the future, so there is a good chance I'...

    €18 (Avg Bid)
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    2 προσφορές
    blockchain project 5 ώρες left

    BlockChain implementation project - required expert advice

    €14 / hr (Avg Bid)
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    15 προσφορές

    Hello, We would like Swap Ethereum ERC20 Tokens with Cross chain Ethereum based Blockchain alt MainNet.

    €146 (Avg Bid)
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    4 προσφορές

    Κορυφαία Blockchain Άρθρα Κοινότητας