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WitnessOS Launches Anchored Evidence System to Verify Autonomous AI Agent Actions

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WitnessOS, a platform focused on AI agent governance, has launched externally timestamped 'E4 anchored receipts' in production to provide verifiable proof of autonomous agent actions. The system addresses a critical gap in AI accountability, where most platforms rely only on agent self-reports — the weakest form of evidence — rather than independently verifiable records. WitnessOS uses a five-tier evidence grading model (E0 to E4), with E4 receipts cryptographically anchored via an RFC 3161 timestamp authority and Merkle-checkpointed for tamper-evident audit trails. Agents never hold destination credentials directly; instead, all actions pass through a policy-enforcing credential broker before execution. The receipts can be independently re-verified offline by any third party, including regulators and auditors, without relying on the platform operator's word.

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WitnessOS Launches Anchored Evidence System to Verify Autonomous AI Agent Actions · ShortSingh