Was the proposed six-month credential sandbox authorized, and were any participants publicly identified?The original letter and signatories are now verified. Submission, later general recommendations and credential guidance do not identify an approved project pilot.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