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White paper WP-015

Cryptographic Audit Trails for Autonomous AI Agents

Mutable logs cannot keep up with agents that act faster than your reviewers.

At a glance

Paper
WP-015
Topic
Cryptographic Audit Trails for Autonomous AI Agents
Format
PDF + web summary
Signatures
ML-DSA-65 post-quantum (NIST FIPS 204)
Sandbox
Reproducible at affix-io.com/sandbox
Company
AffixIO, Wales, UK

Cryptographic Audit Trails for Autonomous AI Agents is an AffixIO technical paper. Mutable logs cannot keep up with agents that act faster than your reviewers.

Agents plan, call tools, and delegate to other agents with little supervision. Eighty-four percent of teams fail agent compliance audits using ordinary logs. We describe per-action zero-knowledge proof chains that bind identity, policy scope, and authorisation without exposing prompts or weights.

Summary

Agents plan, call tools, and delegate to other agents with little supervision. Eighty-four percent of teams fail agent compliance audits using ordinary logs. We describe per-action zero-knowledge proof chains that bind identity, policy scope, and authorisation without exposing prompts or weights.

Download the full PDF for technical detail, diagrams, and reproduction steps. Public sandbox: affix-io.com/sandbox.

Related reading

Frequently asked questions

Why do logs fail for agentic AI?

Agents mutate state quickly, share credentials, and get updated mid-session. Logs are editable and hard to replay after the fact.

What is an agent proof chain?

A linked sequence of compact proofs, one per action, each signed and Merkle-anchored so auditors verify behaviour without vendor access.

Which regulations apply?

EU AI Act Articles 11 to 15, NIST AI agent guidance, ISO 42001, and OWASP Agentic Top 10 controls map directly to proof artefacts.