Conformance

An implementation is AEF-conformant when it can both produce and verify records that satisfy the spec.

Minimum checks

• recompute canonical hash exactly
• validate previous_hash links through the chain
• validate optional detached signatures
• reject malformed UUIDv4 record ids
• reject malformed kinds and non-JSON-native payloads

Reference verifier

The reference verifier lives in python/src/axiom_sdk/verify.py and is also exposed through:

• axiom verify ...
• the MCP server axiom_verify tool

Fixture vectors

python/tests/test_canonical.py contains fixed hash vectors. They are the regression guard against accidental canonicalization drift.