CAIN-INV-1354: E22 Frontier-20 composition engine (spec §7, §8, §25)

VERIFIED source compiles

Domain	VERIFICATION_AND_ASSURANCE
Tier	ENGINEERING_INNOVATION
Source	`cain/e22/composition.py`
Mapped tests ran	133
Passed / failed / errored	133 / 0 / 0
Compiles	yes

Mapped tests

tests/e22/test_e22_execution.py

tests/e23/test_e23_core.py

tests/e24/test_e24_core.py

tests/govfabric/test_compose_diff_federation.py

tests/test_artifact_attestation.py

tests/test_cain41_universal_proof.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.