The configured 69-block faster-than-finality route and delivered[messageId] check do not, by themselves, establish deduplication of an economic action reappearing under a new message ID after a source reorganization.No such incident is evidenced here. Assessing actual exposure requires lane/verifier/reorg conditions; this is a design-review question, not a demonstrated loss or exploit.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