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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    This project aims to solve the problem of tracking the full supply chain from the production of the coffee beans to the consumer hands. To describe the general structure and functions that this Smart Contract offers to the actors: 1)Farmers 2)Distributors 3)Retailers 4)Consumers We want some thing similar to the above linked project

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    I want a cryptocurrencies professional 6 ngày left
    ĐÃ XÁC THỰC

    i'm interested about investing in crypto

    $500 (Avg Bid)
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    Project Requirements 1. Client has an Apartment buildings and wants to give 1 NFT for 1 house in an apartment to a customer. 2. Launch Coin("KuKu NFT HOMES COIN") pegged to Stable coin(USDT) and using this coin customer will buy the NFT(Apartment house). 3. Create a marketplace where people will BUY/SELL NFTs using "KuKu NFT HOMES COIN"

    $3000 - $5000
    Niêm phong NDA
    $3000 - $5000
    1 lượt đặt giá
    List NFT feature broken - need a fix 6 ngày left
    ĐÃ XÁC THỰC

    Hello, I need a developer who knows how NFT platform works and how it develops. Backend is based on NodeJS (nestjs) and frontend is based on reactjs. I am in need of NFT developer to fix one small broken issue on one of our NFT markerplace we have developed. Please apply only if you can work Saturday or Sunday max as I have a launch by Monday.

    $219 (Avg Bid)
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    I want to make a social platform connecting with wallet for example metamask very similair like this website: metafora.app. So its like twitter. all those functions, of posting messages pictures vids, sharing retweeting liking. Profile making with picture. Wireframes are attached

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    Hello I need a experienced react developer to update an existing simple dapp. This work should be completed within a day. Please place your bid if you can do it. Thanks

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    There is a portal bridge on the SOL network that will transfer GST (green satoshi token) from SOL to BSC but it delivers it on BSC as a wrapped token in wormhole that has no liquidity or practical use, i want to transfer GST token from SOL network to BSC network UNWRAPPED to be able to sell. I am looking for someone who can solve this issue. No generic bids, please start your response with "I can deliver unwrapped GST".

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    hola mis socios y yo tenemos pensado crear un juego play to earn , en este caso seria clic to earn algo un poco mas simple , tenemos la idea de lo que queremos y el proyecto preparado para empezar a crearlo , estamos buscando 2 personas , 1 para programar el juego web clic to earn con experiencia en ese campo , y otra persona con experiencia en el campo blockchain , para la creación de los contratos inteligentes , nft , y demás , daremos mas información a la persona seleccionada. muchas gracias.

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    Redaction of a white Paper 6 ngày left
    ĐÃ XÁC THỰC

    we are looking for a professional editor to proofread, improve and properly write a whitepaper in English. The whitepaper has about 6000 words. Conditions: The editor must have experience in topics, blockchain, cryptocurrency, NFT, economics and technology. We also ask you to present a reference. the project is only for professional editors and not for amateurs or . Thank you for your understanding.

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    NDA
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    Solana Expert Needed -- 2 5 ngày left
    ĐÃ XÁC THỰC

    Good Solana expert needed. Details will be shared in DM.

    $250 - $750
    Niêm phong NDA
    $250 - $750
    12 lượt đặt giá
    Vue and React master needed! 6 ngày left
    ĐÃ XÁC THỰC

    I need a developer who knows well about vue and react. My project is to convert vue to react. Vue project is working but I need to convert it to react version urgently.

    $2 - $6 / hr
    Niêm phong
    $2 - $6 / hr
    36 lượt đặt giá
    blockchain mobile tutor 6 ngày left
    ĐÃ XÁC THỰC

    Hello, Im looking for tutor who can explain to me the logic behind blockchain nft p2e games It wont take longer than 1 hour talk.

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    I want to create a smart contract with some functions like other contract. If you know how to create contract, dm me, and let discuss for more.

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    Nos encontramos en el proceso de desarrollo de un contrato inteligente que genera NFT para un juego. Estamos bloqueados en un punto y requerimos asesoría y participación en desarrollo, en caso de ser necesario. Tendríamos que valorarlo inicialmente. Específicamente: 1. Hay un proceso que denominamos Ciclaje: en el struct {refref_pay: []} debemos crear array que nos permita registrar las referencias de pago, al hacer la 4 referencia de pago hacer el ciclaje y dejar vaciado el array 2. Transcaccion: para generar los nft se deben descontar de nuestro token 3. Comprar: transferir los fondos (YAZ) al Smart contrat generador de los NFT y enviar a otra WALLET variable USER¯

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    UNREAL ENGINE FPS TITLE 5 ngày left
    ĐÃ XÁC THỰC

    UPDATE KOMMANDO FPS MULTIPLAYER TEMPLATE 4.0 you must develop/add and or integrate the following contents below to the FPS MULTIPLAYER TEMPLATE 4.0 1 INTEGRATE: Modular soldier pack CUSTIOMZER system 2 INTEGRATE: Advanced VoIP Voice Chat System 3INTEGRATE:Modern Weapon Customization Framework 4Make FPS MULTIPLAYER AI (THROW GRENADES AND SMOKE BOMBS) particle assets will be provided 5Make FPS MULTIPLAYR AI have hit reactions using this asset 6Improve FPS MULTIPLAYER AI movements they need to move more realistically they need to walk crouch and run 7Improve FPS MULTIPLAYER AI: make ai have death anims that work with physics 8Make players have ability to launch drone attacks from ground on specific areas around the map (the player can utillize this abilty 3x/ basically the player ne...

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    Hello, devs. I am looking for a rust developer who is proficient in cosmwasm smart contract development on Juno, Secret Network. The task is trefactoring Secret Contracts into Juno Contracts. Both of them are building with cosmwasm and the projected is purely related with rust(cosmwasm). It is ongoing project. Please feel free to send a proposal if you exp on them.

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    Hello all, I am going to gather data about crypto exchanges (i.e., binance, bitfinex, ...) specifically regarding when they listed the cryptos (bitcoin, solana, ...) they have in their platform. Some of them must be added at the beginning and some of them might have been added later. The nunber of exchanges would be around 300 although I didn't count precisely and each platform would have tens of or hundreds of coins. I can pay for apis if needed (e.g., coinmarketcap and coingecko). Please let me know if you have precise idea and plans. I might NOT answer if it is saying hello or merely saying you can do it. The final result would be something like this: Binance bitfinex OKex ...... BTC Oct 7 2017 .. Etc Oct 7 2017 XRP ..... ....

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    Solana Private RPC Node 5 ngày left
    ĐÃ XÁC THỰC

    Hi, I need someone who can create a Solana RPC Private Node. This private node will be used for minting hyped NFTs in the Solana network. These are some samples of nodes: 35.6ms 37ms 39.4ms 44.7ms 50.1ms 55ms 55.5ms These are public nodes. I need you to build a fast custom RPC private node. If you have some samples you've done in the past, let me know.

    $184 (Avg Bid)
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    Polygon Staking Site Needed. 5 ngày left
    ĐÃ XÁC THỰC

    I need blockchain and Dapp developer needed. I want build smart contract for staking on Polygon net because that's cheapest and fastest net. Of course I need Dapp of the smart contract for users. I want build that with React.js and web3.js. Of course I have design and I'll send that. No agency or team, only individual freelancer needed. If you don't know about the blockchain, especially about the Polygon, and if you don't have rich experience about the React.js and , don't bid please. Thank you.

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    I need help converting my ERC20 token that worths 300usd to ETH, but I can't find liquidity in any DEX, so what can I do? I pay for this job the half, 150usd, and I need to understand the process. I find a way, because a customer of mine wants to change all their ERC20 token to FIAT currency. Thanks.

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    Hello developers I need a program that create liquitidy for ERC20 tokens without liquidity in several DEX like uniswap or pankakswap or others. More details will be given privately Thanks.

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    NFT Blockchain COIN project 5 ngày left
    ĐÃ XÁC THỰC

    Project Requirements 1. Client has an Apartment buildings and wants to give 1 NFT for 1 house in an apartment to a customer. 2. Launch Coin("KuKu NFT HOMES COIN") pegged to Stable coin(USDT) and using this coin customer will buy the NFT(Apartment house). 3. Create a marketplace where people will BUY/SELL NFTs using "KuKu NFT HOMES COIN"

    $5000 - $10000
    Niêm phong NDA
    $5000 - $10000
    8 lượt đặt giá
    Upload NFT on solana 5 ngày left
    ĐÃ XÁC THỰC

    I need to upload 1 mp4 NFT on solana but allow it to be minted 14500 times, could you get the way to do it ? I need it now

    $24 (Avg Bid)
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    Hello, We need a developer to build our inventory/SCM utility token and blockchain ecosystems on Algorand. A. Scope of Work - There are three phases as below; 1. The first step will be to create and deploy tokens on Algo Mainnet with API development to link the DApp and/or ICO website. 2. Algorand based Smart Contract development to enhance its functionality and scalability. 3. Integration to the DApp and ensure functionality and scalability with workmanship B. Architecture/Language - Python with Algorand SDK and/or Pyteal (NO SOLIDITY) - Blockchain algorithm: ASA C. Terms & Conditions - Backdoor-proof, security audit should be included on each phase - Testing on testnet, bug-free, QA, UAT testing included. - Multichain; we may use multiple networks and/or s...

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    Hello. I am looking for senior solidity developer. You have experience with token development. This will be long term job if you are good developer. Best regards.

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    List of tasks: 1. Add Excoincial Blockchain to 2. Do some aesthetic frontend and backend work on such as logo change, colour change, content change. Here is a reference site: and you will do exactly what ZYX Scan has on such as display of graph using API, adding validators, multisender, connecting our bridge to explorer, connecting swap, adding testnet, etc. For the above task I think you have seen ? So should be updated to function like that. - Add logo - Add favicon - Make a few colour changes - Add meta data to the injector so we can manage it easily. - Make EXL price automated - Add price/market chart - Add smart contract verification - Add testnet - Add our social media links. - Optimise speed of the explorer. So basically upgrade to the level of 3. Pro...

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    Create Criptocorrency witch Blockchain 5 ngày left
    ĐÃ XÁC THỰC

    Create the whole world to generate a new Blockchain-based cryptocurrency. Proof-of-stake model, also create the pool and nodes model. Initial product will be based on binance.

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    I NEED A DEVELOPER WHO HAVE+ YEAR OF EXPERIENCE IN WRITING SMART CONTRACT. REQ. TO WRITE SMART CONTRACT FOR TOKEN BUY AND USDT DEPOSIT. NEED AN INDIVIDUAL DEVELOPER WHO WILL START ASAP AFTER FINAL DICUSSION.

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    mobile crypto game 5 ngày left
    ĐÃ XÁC THỰC

    mobile crypto game on solana that will connect to nft wallet on blockchain

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    SAFUU Fork -- 2 4 ngày left

    I want to fork safuu project . 250$

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    Ib to get more details about the project.

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    I'm urgently looking for a fully customizable cryptocurrency wallet and funds manager written in python 3, that can safely and efficiently move funds between addresses and to and from all large CEX's and DEX's. I need this application to be customizable so that I can implement it as part of cryptocurrency trading bots that I am developing. The funds manager application should be compatible with BTC, USDT and XMR, and also allow for payments to and from legacy, bech32 and segwit btc addresses. I need to be able to send instructions to the funds manager through a command prompt as well by calling it in python applications. This project is fairly time-sensitive and I would like to have a working result within a few days if possible.

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    i want to develop a modelling framework in matlab to determine trading price

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    We are looking for a seasoned trading developer with good DeFi and smart contract experience. You must have a track record of: - Trading-related development projects (for cryptos, futures, stocks, ETFs, currencies, or options). - DeFi bot development projects. - Smart contract development projects. You must: - Believe in the merits of Test Driven Development, Unit Testing, and CI/CD. - Be fluent in git. - Be able to write and speak in English clearly and fluently. If all of the above describe you accurately, we would love to hear from you. (** no agencies, please **) What is in it for you? You will get a steady stream of exciting and challenging DeFi trading-related development projects to grow your range of skills and experience further.

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    Scientific paper in computing and blockchain Required : Writing a research problem and questions Writing a step-by-step methodology Delivery within 2-3 hours (This is a very important condition )

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    Cryptocurrency bridge with metamask 4 ngày left
    ĐÃ XÁC THỰC

    be able to add the information of the network in the database so that it works with metamask. 2. Being able to Add the Currency, Network Fee in currency value and Page Fee, Being able to enable which input and output networks will be available for that currency, the commission will only be for the output network. 3. Configure the Private Key and the Address of each network where the funds will arrive, with the Private Key it will be executed to send the funds to the outgoing network that the client requested. 4. The client connects with metamask to choose the input network with which to send the funds, if you give an example: 100 USDT from the BEP20 network, and choose the output network: ERC20, the commission for the output network ERC20 will be calculated According to how it was conf...

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    Looking for think script expert 4 ngày left
    ĐÃ XÁC THỰC

    Looking for someone with experience in TOS scripting , someone who already wrote successfully few algorithms in thinkscript editor, for automated entry bracket with few conditions/ triggers for entry and exit trading positions

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    Hi I am a blockchain developer I have made a Stellar Remit App for my usa client but the client is lack of fund so he said I cannot pay for the wallet purchase now ..so that's why i am posting this so that any developer or a client who wants to buy this can purchase from me A stellar integrated account can be created It can be funded Transfer the amount to another wallet without any taxtes Checking the account balance Front end is fully developed I just need to work on the backend by developing blockchain by integrating of payment gateway after speaking with the correct person who will buy this i will complete the project and hand over the project I have attached the front end pic Please check and only real buyers bid in My Wallet will cost -3200$USD Happy bidding

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    Our team is looking for a Solana expert who can build NFT, Staking contracts using Rust perfectly. I tried to do test several guys about their experience and skills. But all guys are scammers and fake. They doesn't know well about the Solana contract development. If you are not expert in Solana, Do not apply please. Only expert will be hired and work long term with our team. Waiting for your proposals. Thanks.

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    am looking for professional developer that will build a cryptocurrency wallet app

    $25 / hr (Avg Bid)
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    Hello everyone, I am looking for a team of experts to create a website from scratch. First feature of this casino website will be similar to , users should be able to enter lotteries with crypto. So everything from user registration with basic kyc process, crypto deposits, random winner selection with provable fair system and everything else that is necessary needs to be done. Second feature of the site is a simple crypto dice game like We also need an admin interface with all types of statistics, user management, support ticket system I will request many more features as this projects grows and as we see what else is needed. I need someone who keeps working with us after the website is finsihed to manage content and keep developing this project. Further details will...

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    Solana NFT minting project 4 ngày left
    ĐÃ XÁC THỰC

    I need to build NFT minting site on Solana. UI is simple. This need to be done in 1 or 2 days. Only expert apply to my project plz. If you do this project perfectly, I will award you more and more project. Thanks.

    $250 - $750
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    Create nfts and tokenise them on opensea testnet , using smart contracts and erc21 standards , its a very simple project, front end page needed

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    nft marketplace backend need 3 ngày left
    ĐÃ XÁC THỰC

    nft marketplace backend need i alrady have frontend but no fucntion in there

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    Hello! We are hiring people to grind on Discord NFT servers to get the whitelist for us. Here are the points you must know about the role: 1️⃣ You enter a Discord NFT server we send you, and find the requirements needed to get an ETH wallet address whitelisted (if any questions, feel free to ask us). 2️⃣ Once you're in the server, you perform the requested tasks to get whitelisted (sometimes, this may involve using social media accounts). 3️⃣ Once whitelisted, you notify us to get compensated. What is usually required for getting whitelisted on NFT projects: ?? Interacting in the chat positively, and engaging with the community with genuine conversations. THAT'S IT! Tips that can help you to get whitelisted sooner: ?? On some Discord servers, you'll have more chance...

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    I need a Well experienced Flutter Developer for a month who will deal with the client directly and report on daily basis on our CRM. Attend calls with the client and make sure the work is done on time. This will be a Cryptocurrency related project. So knowledge of Cryptocurrency is a Plus.

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    Swap dapp full exchange 3 ngày left
    ĐÃ XÁC THỰC

    we want to create a decentralized exchange platform with staking system, please do not bids and i the message you tell me different price its need to be dapp full exchange, also are you going to use infrastructure or no

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    I am looking for a blockchain developer to create me Metaverse website. If you can do this kindly bid in with your past work. Thanks

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    Basically I need a website where people can buy ticket for a raffle. Prize can be a whitelist / a NFT piece. It is just a bidding feature where you have the NFT display on the website and then you can bid for X amount of time. The last bidder will win the auction. I need to make Raffle / Auction system like this.

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    NEAR nft project 3 ngày left
    ĐÃ XÁC THỰC

    Deploy Near nft smart contract, whitelist token, landing page & minting site, and fix the metadata format.

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