Grep-Fu

Custom errors are a feature of Solidity that allow you to display error messages to the user in a convenient and gas-efficient way. They are declared in the head of the contract and called after a revert statement.

error Unauthorized();
if (msg.sender != owner()) {
  revert Unauthorized();
}

However, a challenge …

Introduction to proofs of knowledge - journal club

A proof of knowledge is a proof in which a prover can convince a verifier that it knows a secret. Typically the goal is to do so without revealing the secret which arrives at zero knowledge being expressed by the proving process.

In …

Now available ETOPO 30 Arc Second 2022 Relief Model Docker container. This project is hosted on GitHub and available to download from either Docker Hub or GHCR

Ultra HD Wallpapers:

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Package Contents:

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Dynamic Address Set

This is a complete step by step walkthrough implementation of a dynamic address set in Solidity for Ethereum blockchain.

Includes:

• foundry
• modifier
• event
• dynamic data structures

• unit testing

• Full project on GitHub

• Full tutorial on YouTube:

Compiled Switch

This example demonstrates how to incorporate a compiled switch construct in an event driven application such as a market data handler or parser.

Full tutorial on YouTube:

Immediately get started developing smart contracts using the Collective.

Full tutorial on YouTube: