triggered the authorized USDC depositPublic signatures establish which registered keys authorized an operation, not human names, distinct people, corporate control, credential custody or AI decision-making. This is historical Base evidence; no first-publication claimTIBBIR UNIVERSE THIS IS TIBBIR How to get TIBBIR Ribbit in numbers Connected clues Account archive Bridge & contracts On-chain research Connections Community The story Reading room Network map Timeline Findings Source library Conversations People & companies Open questions Export & reuse