CAIN-INV-1598: E20 canonical primitives: deterministic JSON (RFC 8785 profile), SHA-256 and Ed25519

VERIFIED source compiles

Domain	TOOL_AND_SUPPLY_CHAIN_GOVERNANCE
Tier	IMPLEMENTATION
Source	`cain/e20/_canon.py`
Mapped tests ran	298
Passed / failed / errored	298 / 0 / 0
Compiles	yes

Mapped tests

tests/clawx_foundation/test_clawx20_invariants_hostile.py

tests/e21/test_e21_state.py

tests/e22/test_e22_execution.py

tests/e26/test_e26_core.py

tests/govkernel/test_authority.py

tests/govkernel/test_govkernel.py

Generated 2026-10-06T19:15:35Z from git unknown. This page is a republication of the run result; it is not an independent audit.

Same-project verification only. The tests are authored in this repository; no third party has reviewed or reproduced these results. VERIFIED means the mapped tests passed in this run, not that the mechanism is independently correct.