Nonces alone do not prevent authorization replay, enforcement is required

A digital signature on a message does not inherently prevent its reuse, as it only verifies the message's origin. Effective replay protection depends on the receiving system validating the authorization's scope, time limits, and usage state. In systems like PriorSeal, a single-use authorization nonce is only consumed when a correlated transaction is confirmed on the blockchain. Therefore, atomic enforcement across distributed systems requires coordinated, durable state management to prevent duplicate executions.