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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    91 jobs fundet, i prisklassen EUR
    Smart Contract for NFT Collection 6 dage left
    VERIFICERET

    NFT Collection Titled “NFT Collection” ○ Token Symbol SYMBOL ● Collection of 10,000 unique 3D assets ○ Solana Network ○ Rust Programming Language ● The collection is comprised of 4 Gangs ○ Goats - White ○ Degens - Green ○ Fudsters - Black ○ Shillers - Gold ● All Attributes and rarities need to be defined ● Self Custody Staking Mechanism: ○ Build a feature that allows Self Custody to earn ranks by staking the token for different durations ○ 8 different Rank, Each rank is earned by Staking the NFT for 1 Month ■ Rank 1: Initiate ■ Rank 2: Associate ■ Rank 3: Soldier ■ Rank 4: Hitman ■ Rank 5: Caporegime ■ Rank 6: Under Boss ■ Rank 7: Boss ■ Rank 8: KingPin ○ A dApp interphase that allows access to self custody staking is required ○ While staking, NFTs...

    €2145 (Avg Bid)
    €2145 Gns Bud
    10 bud

    Scope of work: 1. Integrate crypto wallets into a completed ICO landing page so users can buy tokens during the ICO. 2. Create Solana tokens and smart contract with vesting schedule

    €540 (Avg Bid)
    €540 Gns Bud
    38 bud

    We are looking for an experienced developer for EVM and Solidity smart contracts for smart BCH infrastructure. We are interested in long-term cooperation and have many projects in the field of distributed ledger technology. This project is divided into 2 milestones Milestone 1 – TASK 1 - Create smart contract that includes all functions and features described in the project paper. PDF - Deploy the smart contract on the smartBCH testnet and get it running - test the functions of the smart contract on smartBCH testnet and show all functions and features required by the project paper - test and fix any bugs and optimize the parameters in consultation with our CTO Timeline for successfully finishing milestone 1 = aprox. 10 working days ( 2 weeks ) Unconditional prerequisite and pr...

    €4792 - €9583
    Forseglet NDA
    €4792 - €9583
    14 bud
    NFT Project. 6 dage left
    VERIFICERET

    Hello, We're looking for a dev that has experience in the web3 space. We need to create a website, P2E game, staking for our nft/token creation and an nft marketplace. This project will take place on the SOLANA network. Please let me know if you have experience in this domain and will give out more details. Thank you

    €2747 (Avg Bid)
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    86 bud

    I wonder if you can develop a web platform with the following requirements: The website (platform) should be developed to AUTOMATICALLY RUN and sell the Proof of Priority registration services by making the registrations on blockchain. It will work as follows in the user's view: 1- The user makes the registration on the Site - click on the "Register" menu. 2- When accessing the platform (site) again, access through the login menu. 3- The user makes the purchase of credits via PayPal (or credit card) required for registration. 4- Then informs the data of the record holder, type of record, title and description. 5- The platform AUTOMATICALLY checks if the user has enough credits for the service. 6- Then it releases the user to continue the service request. 7- The user...

    €930 (Avg Bid)
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    60 bud

    Secure IoT blockchain base Application Implement and test security architecture For IoT blockchain base using Edge& fog computing and defined software networks ( SDN ) These architectures are divided into the following: • Blockchain Cloud contains a holistic view of all managed IoT that have occurred to the cloud layer.. Blockchain technology enables to provide cryptographically validated transactions and data. and context-aware attributes-based CP-ABE encryption. It receives the user’s authentication & encrypt the data * IoT devices & IoT gateway * Application Analytics •Edge: composed of devices responsible for ensuring access control, secure data communication, and the application with security rules for managing local area networks. •Fog: compos...

    €611 (Avg Bid)
    €611 Gns Bud
    14 bud
    NFT and crypto art 6 dage left
    VERIFICERET

    I have a collection of digital images and I need information and advice on the whole procedure on how to create an NFT of each image and publish them on OpenSea using the ERC721 protocol. And how can I get profitability from these images.

    €28 (Avg Bid)
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    28 bud

    This is long term projects I am CEO for small company I am looking for only expert! I will ask you some question to u Then I will share my requirement!

    €2432 (Avg Bid)
    €2432 Gns Bud
    21 bud

    i need someone that can build a solana web application and solana smart contract

    €485 (Avg Bid)
    €485 Gns Bud
    32 bud

    I'm looking for a blockchain developer that knows react to build an analytics platform that scans the blockchain where we could figure out how many wallets are long term holders vs short term holders of a token. This would first be done to build an analytics platform on top of BNB chain. I am in the process of building out a team of really talented people to build out a new crypto currency called Oaysus. One of the spots I am looking to fill is for an Blockchain Developer. I'm from the United States working with a mathematician from the UK and a designer from Ukraine. Users in our analytics platform will be able to connect their wallets, share their analytics insights / knowledge, sync their youtube channels and twitter feeds and earn subs paid for in our token. The twitch of cr...

    €24 / hr (Avg Bid)
    €24 / hr Gns Bud
    75 bud

    Hi Everyone, I am looking for a community manager who can handle my Telegram channel and discord server. You will be responsible for growing the channels and attracting crypto and blockchain lovers.

    €29 - €240
    Forseglet
    €29 - €240
    16 bud

    I'm looking for a blockchain developer that knows react to build an analytics platform that scans the blockchain where we could figure out how many wallets are long term holders vs short term holders of a token. This would first be done to build an analytics platform on top of BNB chain. I am in the process of building out a team of really talented people to build out a new crypto currency called Oaysus. One of the spots I am looking to fill is for an Blockchain Developer. I'm from the United States working with a mathematician from the UK and a designer from Ukraine. Users in our analytics platform will be able to connect their wallets, share their analytics insights / knowledge, sync their youtube channels and twitter feeds and earn subs paid for in our token. The twitch of cr...

    €24 / hr (Avg Bid)
    €24 / hr Gns Bud
    27 bud

    Hi how are You? here will be short and all explained exacly in bottom. Project is to: 1. copy smart cotract of Avarice (he is on MIT licence mean can be copied all or part/public). 2. copy also their website one to one (or looks similar mean butons,place etc) 3. installing this on testnet and server from virmach.com. (we will test how its work) 4. making instruction for customer to make him start project on server virmach and smartcontract in real net with his diferent token, giving all codes and istruction to start only by him, and help if any isue. 5. small changes in website really small (adding twitter button, discord, etc) and really small changes in smart contract like (diferent % of lobby tokens next day, and posibility tu upgrade % for referal on some customers from 5 to 10%, sh...

    €1529 (Avg Bid)
    Fremhævet
    €1529 Gns Bud
    33 bud
    A project for Oleks 5 dage left
    VERIFICERET

    A blockchain and NFT project for Oleks.

    €21 (Avg Bid)
    €21 Gns Bud
    7 bud
    Design me a metaverse 5 dage left
    VERIFICERET

    We need a metaverse designer for project, someone who can design the with copy paste proposals will not be entertained.

    €2013 (Avg Bid)
    €2013 Gns Bud
    27 bud
    Unity Expert to build Metaverse 5 dage left
    VERIFICERET

    Looking for a developer or team to build a metaverse on the cronos blockchain

    €62180 (Avg Bid)
    €62180 Gns Bud
    32 bud

    I need a very simple Android and iOS apps to send/receive/swap crypto on Binance Smart Chain. The app can be made using ionic or something that makes it easy to make both Android and iOS apps, but can be made in any technology. The app should be very simple. Just showing the balances in 5 currencies: - BNB - USDT - ETH - WBTC - ILEV (this is our own BEP20 token that will be provided) All of those tokens are just on Binance Smart Chain. The private key is stored in the phone. First time when the app is installed a user should be shown a mnemonic phrase and asked to write down this phrase. All balances should be shown in given currency and the estimation value in USD There are 3 options in the app: - Send crypto: There is an option to input address or scan QR code, enter amount (user...

    €637 (Avg Bid)
    €637 Gns Bud
    43 bud
    Marketing for NFT Project 5 dage left
    VERIFICERET

    New NFT project that requires long term marketing. Will be paid monthly. Experience required in NFT projects. No experience, no project...

    €454 (Avg Bid)
    €454 Gns Bud
    57 bud

    we need a metaverse platform where players and teams can play esports tournaments. Each team can have their own arena,each team should have their own token and new user can stroll in the metaverse.

    €15205 (Avg Bid)
    €15205 Gns Bud
    15 bud
    NFT Minting site and Pixel art 5 dage left
    VERIFICERET

    I need a 7777 NFT collection (pixel art) 100-120 traits. Plus the full minting site (only one page) and contract on ethereum. I already have the domain and hosting. Message me for full details and discussion

    €843 (Avg Bid)
    €843 Gns Bud
    64 bud

    Hello, i need an artist for a web3 gaming NFT project . we're a new gaming company, playmint @ We need 3 base arts of 3 different characters and 6,000 variations each. Please link your past nft projects in the proposal so we can screen for a proven track record before contacting, Thanks.

    €14598 (Avg Bid)
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    24 bud

    Looking for blockchain based developers. Unmarshal API's are perfect solutions to the blockchain related data issues

    €11 / hr (Avg Bid)
    €11 / hr Gns Bud
    2 bud

    Hello, As title states, you will work ALONGSIDE with me to create an API to interact with blockchain. I will handle the interacting with blockchain and you will need to create the API interaction. Prefer NODEJS Please only bid if you are available to start working now. Need to finish this ASAP

    €159 (Avg Bid)
    €159 Gns Bud
    27 bud

    Estoy necesitando desarrollador blockchain, web3, contratos inteligentes a medida. El proyecto esta pensado para armar cumunidad y un ecosistema saludable en el cual interactuen todas sus patrtes y obtengan todos beneficios de distintas maneras. Hay que crear una pagina en la cual se pueda comprar vender NFT y token. Van a haber quemas de token y NFT. Stakin y juegos, etc. Los NFT de la primer serie ya estan creados. igual el token, logo. Tengo pensado armar un gran equipo y comunidad. Tenes ganas de formar parte de algo grande, a largo plazo, sin techo. Ésta es tu oportunidad.

    €2515 (Avg Bid)
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    26 bud

    Please use node.js to write a simple script to: 1. Generate infinite numbers of BTC address which is belong to one parent address by using Hierarchical Deterministic wallet Please conduct a transfer test in testnet of Bitcoin. Please also let me know that whether the transfer of bitcoin to any one of the BTC addresses will be consolidated to one BTC parent address.

    €181 (Avg Bid)
    €181 Gns Bud
    16 bud
    Secure IoT blockchain base App. 4 dage left
    VERIFICERET

    Secure IoT blockchain base Application Implement and test security architecture For IoT blockchain base using Edge& fog computing and defined software networks ( SDN ) These architectures are divided into the following: • Blockchain Cloud contains a holistic view of all managed IoT that have occurred to the cloud layer.. Blockchain technology enables to provide cryptographically validated transactions and data. and context-aware attributes-based CP-ABE encryption. It receives the user’s authentication & encrypt the data * IoT devices & IoT gateway * Application Analytics •Edge: composed of devices responsible for ensuring access control, secure data communication, and the application with security rules for managing local area networks. •Fog: compos...

    €219 (Avg Bid)
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    13 bud
    Trading expert 4 dage left
    VERIFICERET

    I am looking for an experienced blockchain and trading expert

    €493 (Avg Bid)
    €493 Gns Bud
    51 bud

    The pool already running and config as PROP Auto generator for all coins: Need to BTC Bitcoin Only Config and Set PPS+ or FPPS to at YIIMP POOL . Its not VPS Server. Team viewer remote for doing project require. If you have done it before please massage me and we talk about it. Requirement: ****Experience Done it before - Must be Expert in YIIMP mining pool.**** Please Don't Bid if you had no experience in YIIMP. ***Enable to start project in12hour. **** No milestone **** Full Payment after checking project. ****Max budget : 30$**** Higher BID & Auto bot BID will be removed. If you BID Don't ask for Higher BID in private, your Bid will be removed & and You will get Block by our company. ***

    €43 / hr (Avg Bid)
    €43 / hr Gns Bud
    2 bud

    The pool already running and config as PROP Auto generator for all coins: Need to BTC Bitcoin Only Config and Set PPS+ or FPPS to at YIIMP POOL . Its not VPS Server. Team viewer remote for doing project require. If you have done it before please massage me and we talk about it. Requirement: ****Experience Done it before - Must be Expert in YIIMP mining pool.**** Please Don't Bid if you had no experience in YIIMP. ***Enable to start project in12hour. **** No milestone **** Full Payment after checking project. ****Max budget : 30$**** Higher BID & Auto bot BID will be removed. If you BID Don't ask for Higher BID in private, your Bid will be removed & and You will get Block by our company. ***

    €38 (Avg Bid)
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    4 bud

    We want to build a blockchain network on Hyperledger Fabric, a permissioned blockchain, so that it can be implemented for healthcare purposes. We want to build a network on the cloud preferably. And then evaluate its performance in terms of the scalability.

    €2307 (Avg Bid)
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    9 bud
    Bitcoin Mining Developer 4 dage left
    VERIFICERET

    I am looking for an experienced blockchain expert or miner that can develop or provide easy-to-use software to mine bitcoin on my laptop. Detailed guidance and set-up in a timely and efficient manner would be much appreciated given the project is mainly to get acquainted with the process of automated mining on my laptop

    €737 (Avg Bid)
    €737 Gns Bud
    18 bud

    The pool already running and config as PROP Auto generator for all coins: Need to Add and Set Ethereum Coin PPS+ or FPPS to Existing YIIMP POOL . coind-geth & stratum & payments (FPPS or PPS+) need to configure Its not VPS Server. Team viewer remote for doing project require. If you have done it before please massage me and we talk about it. Requirement: ****Experience Done it before - Must be Expert in YIIMP mining pool.**** Please Don't Bid if you had no experience in YIIMP. ***Enable to start project in12hour. **** No milestone **** Full Payment after checking project. ****Max budget : 30$**** Higher BID & Auto bot BID will be removed. If you BID Don't ask for Higher BID in private, your Bid will be removed & and You will get Block by our company. *...

    €24 (Avg Bid)
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    1 bud

    We are looking for an experienced React developer to join our team, who is excited about our mission to bring Defi primitives to Millions of users. They will be responsible for helping the team in building the most secure, seamless, and high-performance protocol that offers our customers an easy-to-use application for lending and borrowing in the Kadena ecosystem. Responsibilities You will work directly with the core team, where your experience will help the team to build an innovative lending and borrowing platform dapp. You will work to implement new features end to end. Collaborate closely with the team around both the designs and the implementation of the designs. Sense checking with the team and prioritizing work from our backlog. Requirements ● Proven background working as a React ...

    €32 / hr (Avg Bid)
    €32 / hr Gns Bud
    32 bud

    I have an Ethereum EVM compatible type of Blockchain programmed with Proof of Authority (PoA) algorithm and which works very fine but since yesterday my chain suddenly stopped confirming transactions. I would like a blockchain expert to check it for me and fix the issue. Here is one the transaction I made that never got confirmed till now. Please bid only if you are truly blockchain expert otherwise don't waste my time and do not come to break down my service.

    €21 / hr (Avg Bid)
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    16 bud

    For our upcoming presale Marketing, we need an expert in presale and a good influencer

    €1200 (Avg Bid)
    €1200 Gns Bud
    21 bud

    Need to build an API to interact with Hashgraph SDK for an NFT collection Please get familiar with Hashgraph SDK and Hashconnect. It is built on Hedera Hashgraph chain. Steps: Steps: 1. User Click button and it sends a transaction to my account of 10 HBAR using Hashgraph SDK/HTS 2. Backend api detects that it was successful and that it was 10 HBAR 3. My account ints nft[i] with CID[i] using hashgraph sdk then removes that CID[i] from the array 4. My account sends the NFT[i] to the user who sent the transaction through the use of Hashgraph SDK/ HTS

    €159 (Avg Bid)
    €159 Gns Bud
    18 bud
    Hashgraph SDK NFT API 3 dage left
    VERIFICERET

    Need to build an API to interact with Hashgraph SDK for an NFT collection Please get familiar with Hashgraph SDK and Hashconnect. It is built on Hedera Hashgraph chain.

    €127 (Avg Bid)
    €127 Gns Bud
    12 bud

    The pool already running and config as PROP Auto generator for all coins: Need to Add and Set Ethereum Coin to Existing YIIMP POOL - PPS+ or FPPS payment. coind-geth & stratum & payments (FPPS or PPS+) need to configure Its not VPS Server. Team viewer remote for doing project require. If you have done it before please massage me and we talk about it. Requirement: ****Experience Done it before - Must be Expert in YIIMP mining pool.**** Please Don't Bid if you had no experience in YIIMP. ***Enable to start project in12hour. **** No milestone **** Full Payment after checking project. ****Max budget : 20$**** Higher BID & Auto bot BID will be removed. If you BID Don't ask for Higher BID in private, your Bid will be removed & and You will get Block by our c...

    €14 (Avg Bid)
    €14 Gns Bud
    2 bud

    We're in the planning phase of a new Token which will be connected to hardware in the real world. In our project we have people with experience from Finance, Web development, Hardware development and Design. We are now looking for an expert on developing on the blockchain. Your work will consist of everything from designing the product together with the founding team to deploying a final smart contract. We are looking for someone with experience from real world cases, show us previous smart contracts you've developed and deployed. Looking forward to chat!

    €23504 (Avg Bid)
    €23504 Gns Bud
    15 bud

    Two parts to this request. 1). I need a magic eden sniper bot, web based. Preferably on-chain with wallet connection. A uto Buy/Sell based on Floor price. Magic eden $SOL integration. Rarity based listing and how much for. Search Function Search by X trait. List of Rarities based on NFTs listed. Dynamic buy price based on the floor price. Ex: “50” will buy the listings listed for 50% below the floor price! Auto-sell snipes – you can instantly list for sale in multiple ways! Auto buy when Floorprice reaches X - EX: “0.10” will buy listings for 0.10 or below! Auto Sell when Floorprice reaches Y - EX: “0.10” will sell listings for 0.10” 2). Minting bot that supports Magic Eden + launchmynft. PLEASE NOTE WEB BASED NOT desktop applicati...

    €6150 (Avg Bid)
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    28 bud

    I need a working prototype of a private blockchain concept using the hyper ledger, solidity, or other relevant tools which I can demonstrate with real participants and collect some data to include in my dissertation.

    €710 (Avg Bid)
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    20 bud
    ICO token page setup 3 dage left
    VERIFICERET

    Hello, I have an ICO page and need help with connecting my token to the page. If you have experience please bid to help me. It takes few minutes of your time. This is urgent.

    €22 / hr (Avg Bid)
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    43 bud

    I wanna support of miners who can help me my crypto bot

    €471 (Avg Bid)
    €471 Gns Bud
    12 bud

    Like the title says : I need someone to build an Identity management system on blockchain

    €2824 (Avg Bid)
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    34 bud

    Hi we want to develop Android and IOS app using the Api of our crypto exchange we have ux ui designs ready

    €5258 (Avg Bid)
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    49 bud
    Blockchain - Fork NFT Lending Site 3 dage left
    VERIFICERET

    Project: NFT Lending Site Fork READ FIRST BEFORE BIDDING!!! Please read the entire project description. We will not entertain low bids that are used to kick off conversations and negotiations to increase the price in the project. Please bid on the entire project, and take into consideration your bid price that could focus on profitability for you while staying competitive against other bidders. Also, note that we will be using milestones, and expectations for this project. Bidding: Please bid the total cost of the project, and the timeframe. Also, please take your bid and add 10-15% to the project to allow for a buffer of odds and ends. Project Summary: We are looking to fork a specific crypto project. DM me, and I will share with you the exact project name, website, and smart cont...

    €1758 (Avg Bid)
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    76 bud
    Mint Smart Contract (ERC-721) 2 dage left
    VERIFICERET

    Hey I need to mint out a 777 supply no traits all the same NFT 777 tokens on the ETH blockchain

    €795 - €1121
    Forseglet
    €795 - €1121
    90 bud
    I need Rust expert to fix bugs. 2 dage left
    VERIFICERET

    Hi freelancers. I need an experienced Rust developer with strong working knowledge and excellent familiarity with blockchain technologies. I have some bugs in project developed by Rust. Budget TBD. Requirements: - Rust developer, ideally 2 years+ - Crypto experience: creation of smart contracts, wallet interactions, code audits. - Specific experience with Rust development for NEAR protocol.

    €163 (Avg Bid)
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    12 bud
    Lead blockchain engineer 2 dage left
    VERIFICERET

    Full stack engineer with experience in Rust programming needed for a long term projects. Should be able to work on independent projects and overseeing other development work. Represent the project as technical lead and communicate with other projects when needed. Extensive knowledge of blockchain needed.

    €51 / hr (Avg Bid)
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    15 bud

    AYRA ECOSYSTEM APP: AYRA BEP20 TOKEN: I need a withdrawal method for tokens earned by users. They must be able to withdraw Ayra token both in Metamask and in trust wallet as a minimum.

    €732 (Avg Bid)
    €732 Gns Bud
    37 bud

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