Cohesion directive Mandates 4+5. The ADR-0243 lifecycle modules were the only
content-address sites still truncating SHA-256 to 96 bits (24 hex) and passing
default=str to json.dumps — the rest of the codebase already uses full 64-hex
digests (claim_digest, cert_id, decision_id, pressure_id, ...). The default=str
+ [:24] drift had also just replicated into Lane C (biography_wiring.py).
- cognitive_lifecycle.py: _content_id drops default=str (non-serializable payload
now fails closed with TypeError) + full 64-hex; _psi_digest full 64-hex over
canonical little-endian f64 bytes via a new _le_f64_bytes helper (coercion, not
the assert form the ADR-0244 draft used — assert is stripped under -O);
matrix_sha routed through _le_f64_bytes too.
- biography_wiring.py, self_authorship.py: same _content_id hardening. Verified
every payload is JSON-safe after the existing float()/str() wrapping, so
removing default=str changes no current digest value — only future
non-serializable inputs fail closed.
- On little-endian targets the widening is an un-truncation: the new 64-hex
digest's 24-char prefix equals the old value (pinned).
tests: test_adr_0243_cognitive_lifecycle psi_digest gold updated to full+LE; new
test_adr_0244_semantic_rigor pins full-64 length, fail-closed TypeError, LE
byte-order canonicality (native vs >f8 hash-equal), and determinism.
[Verification]: D1-affected suites 66 + miner suites 23 green; smoke + fast lane below.
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