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Octopus Research Institute
Status: Active researchEvidence, Audit and ReplayResponsible AI

Evidence and Workstate

Store-untrusting, fail-closed design where verdicts are captured as evidence, contracts are pinned, and work state is replayable and tamper-evident.

Abstract

This programme studies how the state of ongoing AI work can be represented as replayable, tamper-evident evidence. We treat the store as untrusted, fail closed when contracts are violated, and capture verdicts as first-class evidence rather than transient logs.

Problem & motivation

When AI systems act over time, their state is often stored in ways that cannot be verified or replayed, making after-the-fact audit unreliable.

Research questions

  • What is the minimum evidence needed to replay a unit of AI work faithfully?
  • How should a system behave when stored state cannot be trusted?

Methods

  • Design a pinned-contract evidence format.
  • Implement fail-closed verification on load.
  • Test replay determinism against captured evidence.

Limitations

  • Findings are internal and not peer reviewed.
  • Tamper-evidence is not the same as tamper-proofing; threat model is bounded and stated per experiment.

Disclosures

Funding
Infrastructure support provided by Octopus Core Pty Ltd.
Conflicts of interest
Octopus Core offers commercial audit/evidence infrastructure; findings are reported independently.