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RareSkills has released a free and comprehensive introduction to Solidity for experienced programmers. Although there are many resources for the...
Solidity events are the closest thing to a print or console.log statement in Ethereum. We will explain how they work, when to use them, and go into a...
Here is a minimal (copy and paste) example of how to safely create and verify ECDSA signatures with OpenZeppelin in the Foundry environment. Contract:...
How gasleft() is used in production smart contracts · Introduction The purpose of this article is to describe the behavior of the solidity gasleft()...
The cost to deploy a smart contract on ethereum has six factors. The biggest factors are the contract size and what code gets executed during the...
Using cryptography libraries, not web3 libraries · Generate Ethereum Address from Public Key An ethereum address is the last 20 bytes of the keccack256...