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Off Chain Transaction Data Smart Contract ERC-721

Hello,

I want to whitelist ETH wallets of people who want to buy NFT, but it costs high gas fee. I want someone to build me mechanism that allows me to sign the transaction data off chain and only allow signed data with the owners signature to call the function in the contract.

ECDSA library will be needed for this. One part will be handled on chain (verifying the data was by the owner) and the other part is handled through a javascript library like web3 or ethers to sign the data.

Only bid if you have done this before.

Навыки: Solidity, Ethereum, Smart Contracts, Web3.js

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О работодателе:
( 1 отзыв ) Lahore, Pakistan

ID проекта: #31815728

3 фрилансеров(-а) готовы выполнить эту работу в среднем за $200

kesicprograms192

Hello, Thanks for your kind post. I've just checked your requirement carefully. I'm a senior developer with 6+ years experiences in web development related with blockchain. I am very familiar with Php/Laravel/CI, Java Больше

$200 USD за 7 дней(-я)
(1 отзыв)
2.6
jacobkitema2021

AN EXPERT IN BLOCKCHAIN HELLO DEAR CLIENT, MASTER IN ENGINEERING AN STASTICS Hi there! Main skills being PYTHON, MATLAB, ENGINEERING, SOLAR PROJECTS and ALL STATISTICAL WORK (if interested I can share samples of my pre Больше

$200 USD за 3 дней(-я)
(0 отзывов(-а))
0.0
egorcrieg2

My name is Egor and I am an experienced and professional Javascript developer. My specialization is the creation of back-end and front-end parts for websites and web applications, as well as blockchain development of a Больше

$200 USD за 8 дней(-я)
(0 отзывов(-а))
0.0