aevum-core

The independent black box for AI agents — tamper-evident, independently verifiable records of what your agents did.

aevum-core is the Aevum context kernel: five governed functions (ingest, query, review, commit, replay) over an append-only episodic ledger, gated by five unconditional barriers (crisis detection, classification ceiling, consent, audit immutability, provenance) that are hardcoded and never policy-controlled.

  • SHA3-256 hash-chained sigchain — every event is RFC 8785 (JCS) canonicalized and Ed25519-signed (RFC 8032); an optional hybrid ML-DSA-65 (FIPS 204) signature runs alongside it for post-quantum defense-in-depth.
  • COSE_Sign1 receipts with RFC 3161 trusted timestamps — each entry is wrapped in a portable, independently verifiable receipt.
  • RFC 6962-style Merkle log — Signed Tree Heads with inclusion and consistency proofs detect any historical rewrite of the ledger.
  • Cedar ABAC + OPA policy engines — consent and content/infrastructure decisions are externalised and optional, sitting behind the unconditional barriers rather than replacing them.
  • Verification logic also ships as a separate package, aevum-verify, so a receipt can be checked without running the rest of the kernel.

Install

pip install aevum-core
pip install "aevum-core[cedar]"  # + real Cedar consent enforcement

Docs

Full documentation, threat model, and regulatory alignment: https://github.com/aevum-labs/aevum

License

Apache-2.0.

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GitHub Statistics

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License

Apache Software License (Apache-2.0)

Requires

Python >=3.11

Provides Extra

a2a adk all anthropic benchmark cedar crewai default dev langchain langgraph maf mcp openai-agents oxigraph postgres pqc server

Tags

ai audit context governance provenance replay

Classifiers

Report project as malware

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