Greenroom Wristband Afteruse

A greenroom wristband is narrow proof of contact unless the game preserves a wearer, handler/date context, cited scope, claimant posture, proof bridge, and future reader. It can become route evidence only through a selected posture that mutates counters and future route state.

Valid branches: certify fan scope, restrict reader, attach wearer bridge, reopen claimant, split wristband from voice custody, quarantine afteruse, or false-clean default.