Auditor evidence pack
Analysis at cto review
Engineering · Engineering Analytics · line EN11A · Monthly Engineering Read. more
Chain verified
Every record links to the one before it and hashes to its stored value. 6 records were re-hashed on this page load, in order, starting from the genesis value. Nothing was read from a cached verdict.
hash = sha256(prevHash + "|" + JSON{seq, unitRef, actor, action, outcome, occurredAt})
Records
6
Append-only, sequenced
Agent actions
5
Taken by software
Human actions
1
Taken by a named person
Refusals
1
Blocked by the authority register
Corrections
0
Later record supersedes an earlier one
Legal hold
None
Free to age out on schedule
The unit
What the work was, and where it sits
Reference
EN11A-1023
Subject
Maeve Kaplan
Requested by
Grace Bianchi
Value
$1.3m
Materiality
high
Currently held by
Director, Engineering Analytics (human)
Sub-function owner
Director, Engineering Analytics
Orchestrator
Engineering Analytics Orchestrator
Every action, in order
Actor, authority, versions in force, and the hash link to the record before it
1
Engineering Analytics OrchestratororchestratorCleared
Cleared ingest
2026-08-18 04:54:00ZAuthority EN11-AUTH-A1 · cap $2,000,000Jurisdiction DEAutonomy A3Retention TECH-3Y
Model
Prompt
orchestrator-brief@p14
Policy
segregation-of-duties@v4
Tools
read-only-lookup@t12, notify-and-route@t5
in 7256e76b...da08cfout aff74ae6...88e880artifact ART-EN11A-1003-1 genesis → 09092a9b...93369d
2
Cycle Time AgenttaskCleared
Cleared model delivery metrics
2026-08-18 05:43:00ZAuthority EN11-AUTH-A1 · cap $2,000,000Jurisdiction DEAutonomy A4Retention TECH-3Y
Model
Prompt
task-execution@p21
Policy
segregation-of-duties@v4
Tools
document-fetch@t9, read-only-lookup@t12
in 0b39b0f6...b301f0out bdea129e...3afbf4artifact ART-EN11A-1003-2 09092a9b...93369d → 476de60a...b77c87
3
Cost per Service AgenttaskCleared
Cleared detect trend
2026-08-18 06:32:00ZAuthority EN11-AUTH-A1 · cap $2,000,000Jurisdiction DEAutonomy A4Retention TECH-3Y
Model
Prompt
task-execution@p21
Policy
segregation-of-duties@v4
Tools
document-fetch@t9, read-only-lookup@t12
in 7feda988...b1fd23out ed15b29e...aa68a3artifact ART-EN11A-1003-3 476de60a...b77c87 → 8495b5dc...d916ec
4
Reliability Trend AgenttaskCleared
Cleared draft readout
2026-08-18 07:22:00ZAuthority EN11-AUTH-A1 · cap $2,000,000Jurisdiction DEAutonomy A4Retention TECH-3Y
Model
Prompt
task-execution@p21
Policy
segregation-of-duties@v4
Tools
document-fetch@t9, read-only-lookup@t12
in 44c771a3...5a4785out d4435e37...c9b361artifact ART-EN11A-1003-4 8495b5dc...d916ec → dd4c0b92...10fea9
5
Engineering Analytics OrchestratororchestratorRefused
Attempted clearance above the delegated cap
2026-08-18 08:08:00ZAuthority EN11-AUTH-A1 · cap $2,000,000Jurisdiction DEAutonomy A3Retention AI-10Y
Model
Prompt
orchestrator-brief@p14
Policy
segregation-of-duties@v4
Tools
read-only-lookup@t12, notify-and-route@t5
in bce1f1d9...fc758aout 821a55cb...d5bea3artifact ART-EN11A-5-refusal dd4c0b92...10fea9 → cae6a51e...f10065
6
Director, Engineering Analyticsgate-approverHeld
Holding at cto review
2026-08-18 08:11:00ZAuthority EN11-AUTH-H1 · cap $2,000,000Jurisdiction DEAutonomy A0Retention TECH-3Y
Model
human@n-a
Prompt
human@n-a
Policy
segregation-of-duties@v4
Tools
none
in bb3de865...896e1fout eb3b9143...7b8fc0artifact ART-EN11A-1003-6 cae6a51e...f10065 → 62f3f479...2cbf3f
Authority relied on
Who was allowed to do this, up to what value, in which jurisdictions
Any unit on a engineering analytics line where every intake check passed, the policy in force is current, and the value sits inside the cap below.
Cap $250,000US · UK · DE · SGDelegated from Director, Engineering AnalyticsExpires 2027-05-09
Anything the agent grant refuses, plus any override of an agent outcome. more
Cap $2,000,000US · UK · DE · SGDelegated from Engineering leadershipExpires 2027-06-27
Versions in force
Exactly what was running when these actions were taken
| Kind | Identifier | Version | Status | Owner |
|---|---|---|---|---|
| model | reasoner-core | 5.4 | current | Platform model council |
| model | extract-lite | 2.9 | current | Platform model council |
| policy | segregation-of-duties | v4 | current | Internal audit |
| prompt | orchestrator-brief | p14 | current | Chief of Staff office |
| prompt | task-execution | p21 | current | Shared service engineering |
| toolset | read-only-lookup | t12 | current | Platform engineering |
| toolset | notify-and-route | t5 | current | Platform engineering |
| toolset | document-fetch | t9 | current | Shared service engineering |
Gates on this line
The control points this unit had to clear
CTO review
Held for a named human when the unit exceeds the analysis decision envelope, when confidence falls below the floor, or when a policy clause is engaged.
Approver: Director, Engineering Analytics · cleared on this chain
Records schedule and holds
How long this evidence must be kept, and whether it is frozen
TECH-3Y3 years
Technology change and access evidence
Security review and change audit requirement.
Deleted at three years from the change closing.
AI-10Y10 years
Autonomous decision evidence
Model risk and AI regulation expectations on traceability of automated decisions, taken at the longest emerging requirement rather than the current minimum.
Deleted at ten years. more
What this pack proves, and what it does not
Read this before you rely on it
It does prove
- Every action carries a named actor, an actor kind, and a timestamp.
- Every action names the authority grant that permitted it and the cap that grant carries.
- Every action stamps the model, prompt, policy and tool versions in force at that moment.
- Corrections are additive. A later record supersedes an earlier one and says why more
- The chain is re-hashed live on this page, so a single altered field is detected immediately.
It does not prove
- It is not tamper-proof against an attacker with write access to the store, who could rewrite the whole chain from genesis. more
- The evidence in this demonstration is modeled from a simulated estate, not captured from production systems.
- Identity here is the actor name recorded on the action. more