Digital Identity Standards for Tokenization
Digital identity standards — from W3C Verifiable Credentials to ONCHAINID and Circle's Verite — provide the KYC infrastructure that makes programmable compliance possible in tokenized asset markets.
ERC-3643 — The Institutional Security Token Standard
ERC-3643 (formerly the T-REX protocol) is the most widely adopted Ethereum token standard for tokenized securities, embedding investor identity verification, transfer restrictions, and regulatory compliance directly into the token's smart contract logic.
Ethereum (for Tokenization)
Ethereum is the dominant blockchain for institutional tokenized assets, hosting BlackRock's BUIDL, Ondo Finance's OUSG, and most major ERC-3643 security tokens — with $25B+ in RWA locked on-chain, Ethereum's smart contract platform provides the deepest DeFi liquidity for tokenized assets.
Programmable Compliance
Programmable compliance embeds regulatory requirements directly into a token's smart contract code, automatically enforcing investor eligibility, transfer restrictions, investor count limits, and jurisdictional rules without human intervention.
Security Token
A security token is a blockchain-based digital representation of a traditional financial security — equity, debt, real estate, or fund interest — that must comply with US securities laws including registration or exemption requirements.