SOLVING ONCHAIN ATTRIBUTION FOR BASE WITH BUILDER CODES

Summary from the TLDR Crypto newsletter

Base has launched ERC-8021, an onchain attribution standard that allows builders across the user funnel to append a signed builder code to transactions, proving participation in the value chain without exposing user data. The standard addresses a core challenge previously encountered by Spindl (acquired by Coinbase), which could not reliably stitch offchain app-layer activity to pseudonymous onchain transactions without running code across every dapp's landing page. ERC-8021 builder codes will serve as the exclusive mechanism for measuring ecosystem contribution on Base and will directly determine eligibility and weighting in future rewards programs. Coinbase Retail, Base native apps, and major Base protocols, including Aerodrome, Moonwell, and Privy, have already integrated the standard.