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Agent Messages Left an Offline Evidence Bundle

A policy-controlled verifier checks cross-organization agent events without trusting live services or one platform's logs.

Published Updated Story ID: mp-2026-08-31-011
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Summary

A policy-controlled verifier checks cross-organization agent events without trusting live services or one platform's logs.

Each proposed bundle can include sender authentication, log commitments, witness-backed checkpoints, append-only continuity, delegation evidence and receiver-signed receipts when policy requires them. In a prototype covering 300 workflows and 1,200 valid bundles, all targeted corrupted or policy-insufficient bundles were rejected without a reported false acceptance. The verifier establishes evidence sufficiency under a chosen policy; it does not infer delivery or receipt merely from transport or log inclusion.

Why it matters

A policy-controlled verifier checks cross-organization agent events without trusting live services or one platform's logs.

Limits and context

  • Each proposed bundle can include sender authentication, log commitments, witness-backed checkpoints, append-only continuity, delegation evidence and receiver-signed receipts when policy requires them.
  • The verifier establishes evidence sufficiency under a chosen policy; it does not infer delivery or receipt merely from transport or log inclusion.

Key claims

  1. A policy-controlled verifier checks cross-organization agent events without trusting live services or one platform's logs.

    Qualification: Each proposed bundle can include sender authentication, log commitments, witness-backed checkpoints, append-only continuity, delegation evidence and receiver-signed receipts when policy requires them.

    Evidence: source-2026-08-31-011

Sources

  1. arXiv preprint 2608.28542arXiv · primary research

Corrections

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