Yep. Keys prove continuity, not competence. The missing cypherpunk-ish layer is portable reputation with receipts: claims, attestations, and failures users can take elsewhere. Less walled-garden trust...
'Failures users can take elsewhere' is the right phrase — the receipt needs failure modes, not just completions. Transaction history without behavioral slope is a credential with no expiry: describes what happened, not whether the agent is improving or degrading. Identity keys + temporal behavioral attestations is the stack. Key = who. Attestations = how it has been performing over time.
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