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Examination Pack

Run Integrity & Audit Report

Run ID run_meridian_001

Generated Thu, 18 Jun 2026 05:59:45 GMT

Schema v1.0

✓ CHAIN INTEGRITY VERIFIED

Identity & Provenance

Run ID	`run_meridian_001`
Model snapshot	`claude-sonnet-4-6@sn-4.6-0519`
Policy pack	`pack-v12`
Genesis timestamp	Sat, 13 Jun 2026 22:27:06 GMT
Report generated	Thu, 18 Jun 2026 05:59:45 GMT
System prompt hash (SHA-256)	`4e070c4ce8a68b52a1544a69f0677a13d9627eee255908e9942128e890d76623`
System prompt length	184 chars
Tools declared	query_dataroom, fetch_market_data, draft_memo
Sampling params	`{"temperature":0.3,"seed":881204}`

Hash Chain Integrity

Integrity status	✓ VALID — all event hashes compute correctly
Chain length	10 events
Chain head (last hash)	`716a1fd3dec50096c7b56d1f269cb0f91482e383723c7d49c24bac7f02304dc9`
Model drift	None

Full hash sequence

seq	type	prev_hash	hash
0	genesis	`GENESIS…`	`31f00f3dc28ac17c…`
1	reasoning	`31f00f3dc28ac17c…`	`73be379c181eb101…`
2	tool_call	`73be379c181eb101…`	`298c5cd853f3c6f7…`
3	retrieval	`298c5cd853f3c6f7…`	`9b8b16c1b6dba3fe…`
4	reasoning	`9b8b16c1b6dba3fe…`	`abf56ada69e1f311…`
5	tool_call	`abf56ada69e1f311…`	`f2ba6345ef58c10c…`
6	fault	`f2ba6345ef58c10c…`	`24623e4507238b6d…`
7	decision	`24623e4507238b6d…`	`6d4ae4f1264c4cb5…`
8	output	`6d4ae4f1264c4cb5…`	`68ac96b1aa12846e…`
9	seal	`68ac96b1aa12846e…`	`716a1fd3dec50096…`

Fault Record

Total faults detected	1
Verified outputs released	1

No faults detected in this run.

Policy Decisions

seq	action	rule	constraint
7	`—`	hallucination_C2 → constrained_regeneration	every factual sentence must carry a resolvable citation

Event Timeline

seq	type	title	model	cost	latency	hash (16)
0	genesis	System context sealed	`—`	—	—	`31f00f3dc28ac17c`
1	reasoning	Plan covenant review for Helios Industrial	`claude-sonnet-4-6`	$0.0021	900ms	`73be379c181eb101`
2	tool_call	query_dataroom("Helios Q1-2026 financial statements")	`—`	$0.0000	1400ms	`298c5cd853f3c6f7`
3	retrieval	Extract financial line items	`claude-sonnet-4-6`	$0.0058	1100ms	`9b8b16c1b6dba3fe`
4	reasoning	Test covenant §6.1(b) — max leverage 3.75x	`claude-sonnet-4-6`	$0.0034	780ms	`abf56ada69e1f311`
5	tool_call	fetch_market_data("BSL secondary pricing, industrials")	`—`	$0.0000	620ms	`f2ba6345ef58c10c`
6	fault	⚠ Hallucinated citation in memo draft	`claude-sonnet-4-6`	$0.0071	1950ms	`24623e4507238b6d`
7	decision	Regenerate with citation constraint	`—`	$0.0000	18ms	`6d4ae4f1264c4cb5`
8	output	Memo regenerated — all 14 claims verified	`claude-sonnet-4-6`	$0.0102	2000ms	`68ac96b1aa12846e`
9	seal	Run sealed — chain anchored	`—`	—	—	`716a1fd3dec50096`

Daily Merkle Anchor

Anchor date (UTC)	2026-06-13
Merkle root	`03bff7c39f8e50f1fed26e72c02a17654295cf80698df6120f18b513d0646381`
Anchor computed at	Sat, 13 Jun 2026 22:54:23 GMT

Attestation

This examination pack was generated by BLACKBOX on Thu, 18 Jun 2026 05:59:45 GMT. The hash chain integrity status above reflects the result of independently recomputing SHA-256 over the canonical JSON of every recorded event. The chain head 716a1fd3dec50096… is the tamper-evident fingerprint of this run. Any alteration to any event — however small — will produce a different chain head that can be detected by re-running the verifier against the stored event sequence.

Faithful playback: all inputs and outputs are stored verbatim. Approximate re-execution: provider non-determinism means bit-identical replay is not claimed or guaranteed.