The inspected original Uniswap v3 SwapRouter checks exact-input output against the pool’s returned amount rather than the recipient balance increase. Under an illustrative 1% TIBBIR outflow fee, a nominal 1,000-token output can pass a 995-token nominal minimum while an ordinary recipient receives 990. This is a conditional source-path inference, separate from the observed v4 settlement-order transaction.No specific historical v3 incident is claimed, and the original router source was not source-matched to every Robinhood router. Balance-aware wrappers, other routers or additional final checks can behave differently.TIBBIR 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