a16z's Can't Be Evil licenses give NFT creators six standard, lawyer-drafted rights bundles you reference from a smart contract. Answer a few questions about commercial use, exclusivity, and the no-hate variants and this picks the matching license, both of its on-chain enum names (launch and current), its Solidity LicenseVersion enum ordinal, the full rights matrix, and the canonical Arweave license URIs. Deterministic: the same answers always resolve to the same license.