The Mechanism · Gated-generation receipt

gen-what-is-the-significance-of-an-hmac-answer-concisely-in-2-3-51c0

stable pending witness
2026-05-29 07:30:44 UTC · anthropic/claude-sonnet-4-5

Prompt

What is the significance of an HMAC? Answer concisely in 2-3 sentences.
71 chars

Generation

An HMAC (Hash-based Message Authentication Code) provides both data integrity and authentication by combining a cryptographic hash function with a secret key. It allows the recipient to verify that a message hasn't been altered in transit and confirms it came from someone possessing the shared secret key. This makes HMACs essential for secure communications, API authentication, and protecting against tampering attacks.
29 tokens in · 81 tokens out · 3126 ms · $0.0013

The four gates

RED
pass
no disqualifying input patterns detected
FLOOR
pass
output above protective minimum; no mismatches
WAY
pass
no declared way_path (Way check NA); no coercion language
EXECUTION
deferred
no witnesses available (Witness Roll not yet constituted)

Verifier results

scripture_anchors NOT_APPLICABLE
0 Scripture citation(s) extracted
theology_doctrine NOT_APPLICABLE
no doctrine keyword patterns detected

Metrics

Total latency
3132.2 ms
Base LLM
3125.5 ms
Verifiers
0.1 ms
Gates
0.0 ms
Cost
$0.0013

Trail

07:30:44 received prompt_chars=71 verifiers=['scripture_anchors', 'theology_doctrine']
07:30:44 red_gate decision=pass reason=no disqualifying input patterns detected
07:30:47 base_llm_call model=anthropic/claude-sonnet-4-5 tokens_in=29 tokens_out=81 latency_ms=3125.5 cost_usd=0.0013
07:30:47 verifier:scripture_anchors verdict=NOT_APPLICABLE summary=0 Scripture citation(s) extracted
07:30:47 verifier:theology_doctrine verdict=NOT_APPLICABLE summary=no doctrine keyword patterns detected
07:30:47 floor_gate decision=pass reason=output above protective minimum; no mismatches
07:30:47 way_gate decision=pass reason=no declared way_path (Way check NA); no coercion language
07:30:47 execution_gate decision=deferred reason=no witnesses available (Witness Roll not yet constituted)
07:30:47 signed hash_algo=sha256 hash=sha256:a3fd05ca1289c53b0d856d9117d8648693fce3f91e43ea446c1d79fc2de33df8

Content hash

sha256:a3fd05ca1289c53b0d856d9117d8648693fce3f91e43ea446c1d79fc2de33df8

SHA256 over the canonical JSON (excluding this field). Tamper detection. Ed25519 signing planned for v2 once the operator’s signing key is provisioned on disk.

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