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Examination Pack

Run Integrity & Audit Report

Run ID run_meridian_003

Generated Thu, 18 Jun 2026 05:59:10 GMT

Schema v1.0

✓ CHAIN INTEGRITY VERIFIED

Identity & Provenance

Run ID	`run_meridian_003`
Model snapshot	`claude-sonnet-4-6@sn-4.6-0519`
Policy pack	`pack-v12`
Genesis timestamp	Sat, 13 Jun 2026 23:38:16 GMT
Report generated	Thu, 18 Jun 2026 05:59:10 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	20 events
Chain head (last hash)	`b8cbcc5992bacd9b492db2387c0abd2f355506c44fa81e3ccab5d58e110a8686`
Model drift	None

Full hash sequence

seq	type	prev_hash	hash
0	genesis	`GENESIS…`	`af806fe8cca88109…`
1	reasoning	`af806fe8cca88109…`	`de45e87c267feafb…`
2	tool_call	`de45e87c267feafb…`	`711c820ef2a8333f…`
3	retrieval	`711c820ef2a8333f…`	`7a7d53901294e678…`
4	reasoning	`7a7d53901294e678…`	`456513816c08fb6c…`
5	tool_call	`456513816c08fb6c…`	`08766eac9e9da01e…`
6	fault	`08766eac9e9da01e…`	`2da21f66dcf88f87…`
7	decision	`2da21f66dcf88f87…`	`16bf3c01c4a5d037…`
8	fault	`16bf3c01c4a5d037…`	`63def0446860d68c…`
9	decision	`63def0446860d68c…`	`1325269e3780bd51…`
10	genesis	`1325269e3780bd51…`	`2f03d6b5470b08a6…`
11	reasoning	`2f03d6b5470b08a6…`	`e58064293a5256e9…`
12	tool_call	`e58064293a5256e9…`	`15ca49eb0de75ce3…`
13	retrieval	`15ca49eb0de75ce3…`	`52498bba8b3feded…`
14	reasoning	`52498bba8b3feded…`	`be5c3d25d1290e5b…`
15	tool_call	`be5c3d25d1290e5b…`	`713857944a5239cc…`
16	fault	`713857944a5239cc…`	`cf843102eb1c53a9…`
17	decision	`cf843102eb1c53a9…`	`043787979685ac9a…`
18	output	`043787979685ac9a…`	`7f936f4aa50dde7a…`
19	seal	`7f936f4aa50dde7a…`	`b8cbcc5992bacd9b…`

Fault Record

Total faults detected	3
Verified outputs released	1

C2HIGHseq 6 · 2026-06-13T23:38:16Z

Reference "§6.1" in output

Evidence: "§6.1" does not appear in any document in the retrieval set.

C2HIGHseq 6 · 2026-06-13T23:38:16Z

Reference "amendment dated March 12, 2026" in output

Evidence: "amendment dated March 12, 2026" does not appear in any document in the retrieval set.

C2HIGHseq 6 · 2026-06-13T23:38:16Z

Reference "Exhibit C" in output

Evidence: "Exhibit C" does not appear in any document in the retrieval set.

C2HIGHseq 8 · 2026-06-13T23:38:16Z

Reference "§6.1" in output

Evidence: "§6.1" does not appear in any document in the retrieval set.

C2HIGHseq 16 · 2026-06-13T23:38:49Z

Reference "amendment dated March 12, 2026" in output

Evidence: "amendment dated March 12, 2026" does not appear in any document in the retrieval set.

C2HIGHseq 16 · 2026-06-13T23:38:49Z

Reference "Exhibit C" in output

Evidence: "Exhibit C" does not appear in any document in the retrieval set.

Policy Decisions

seq	action	rule	constraint
7	`regenerate`	C2 → regenerate (pack-v12)	Every factual sentence must include an explicit citation to a document in the retrieval set. Do not assert any specific value, date, or named entity that cannot be traced to the retrieved content. Use hedged language ('the filing states…', 'per §3.2 p.14…') rather than bare assertions.
9	`regenerate`	C2 → regenerate (pack-v12)	Every factual sentence must include an explicit citation to a document in the retrieval set. Do not assert any specific value, date, or named entity that cannot be traced to the retrieved content. Use hedged language ('the filing states…', 'per §3.2 p.14…') rather than bare assertions.
17	`regenerate`	C2 → regenerate (pack-v12)	Every factual sentence must include an explicit citation to a document in the retrieval set. Do not assert any specific value, date, or named entity that cannot be traced to the retrieved content. Use hedged language ('the filing states…', 'per §3.2 p.14…') rather than bare assertions.

Event Timeline

seq	type	title	model	cost	latency	hash (16)
0	genesis	System context sealed	`—`	—	—	`af806fe8cca88109`
1	reasoning	Plan covenant review for Helios Industrial	`claude-sonnet-4-6`	$0.0021	900ms	`de45e87c267feafb`
2	tool_call	query_dataroom("Helios Q1-2026 financial statements")	`—`	$0.0000	1400ms	`711c820ef2a8333f`
3	retrieval	Extract financial line items from Q1-2026 audit	`claude-sonnet-4-6`	$0.0058	1100ms	`7a7d53901294e678`
4	reasoning	Test covenant §6.1(b) — max leverage 3.75x	`claude-sonnet-4-6`	$0.0034	780ms	`456513816c08fb6c`
5	tool_call	fetch_market_data("BSL secondary pricing, industrials")	`—`	$0.0000	620ms	`08766eac9e9da01e`
6	fault	⚠ 3 citation fault(s) detected — output quarantined	`claude-sonnet-4-6`	$0.0071	1950ms	`2da21f66dcf88f87`
7	decision	Policy: C2 → regenerate (pack-v12)	`—`	—	—	`16bf3c01c4a5d037`
8	fault	⚠ 1 citation fault(s) detected — output quarantined	`claude-sonnet-4-6`	$0.0102	2000ms	`63def0446860d68c`
9	decision	Policy: C2 → regenerate (pack-v12)	`—`	—	—	`1325269e3780bd51`
10	genesis	System context sealed	`—`	—	—	`2f03d6b5470b08a6`
11	reasoning	Plan covenant review for Helios Industrial	`claude-sonnet-4-6`	$0.0021	900ms	`e58064293a5256e9`
12	tool_call	query_dataroom("Helios Q1-2026 financial statements")	`—`	$0.0000	1400ms	`15ca49eb0de75ce3`
13	retrieval	Extract financial line items from Q1-2026 audit	`claude-sonnet-4-6`	$0.0058	1100ms	`52498bba8b3feded`
14	reasoning	Test covenant §6.1(b) — max leverage 3.75x	`claude-sonnet-4-6`	$0.0034	780ms	`be5c3d25d1290e5b`
15	tool_call	fetch_market_data("BSL secondary pricing, industrials")	`—`	$0.0000	620ms	`713857944a5239cc`
16	fault	⚠ 2 citation fault(s) detected — output quarantined	`claude-sonnet-4-6`	$0.0071	1950ms	`cf843102eb1c53a9`
17	decision	Policy: C2 → regenerate (pack-v12)	`—`	—	—	`043787979685ac9a`
18	output	Memo regenerated — all claims verified	`claude-sonnet-4-6`	$0.0102	2000ms	`7f936f4aa50dde7a`
19	seal	Run sealed — chain anchored	`—`	—	—	`b8cbcc5992bacd9b`

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 05:59:10 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 b8cbcc5992bacd9b… 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.