UnsafeMath for Solidity 0.8.0+
UnsafeMath is a Solidity library used to perform unchecked, or “unsafe”, math operations. Prior to version 0.8.0 all math was unchecked meaning that subtracting 1 from 0 would underflow and result in the max...
Tagged: Solidity
NFT Keyed Ephemeral Counterfactual Minimal Proxy Contracts
These example contracts demonstrate a gas effective way to deploy counterfactual contracts using CREATE2. Using minimal proxy instances that are destroyed between transactions is a secure way to isolate assets in a way that...
NFT – Mint Random Token ID
The perceived value of many NFTs is based on that item’s rarity making it ideal to mint them fairly. Rarity snipers and bad actors on a team can scoop up rare items from a...
Provable Randomness with VDF
A Verifiable Delay Function (VDF) is a linearly computed function that takes a relatively long time to calculate, however the resulting proof can be verified to be the result of this computation in a...
