Auditor evidence pack
Supplier contract at execute
Procurement & Source-to-Pay · Contract Execution · line PR5B · Contract Amendment. more
Chain verified
Every record links to the one before it and hashes to its stored value. 5 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
5
Append-only, sequenced
Agent actions
3
Taken by software
Human actions
2
Taken by a named person
Refusals
0
Blocked by the authority register
Corrections
0
Later record supersedes an earlier one
Legal hold
Held
HOLD-003
The unit
What the work was, and where it sits
Reference
PR5B-1003
Subject
Amara Okafor
Requested by
Naomi Raman
Value
$91k
Materiality
medium
Currently held by
S2P spine (gbs)
Sub-function owner
Director, Contract Management
Orchestrator
Procurement Contract Orchestrator
Every action, in order
Actor, authority, versions in force, and the hash link to the record before it
1
Template Selection AgentgbsCleared
Cleared request
2026-08-18 04:13:00ZAuthority PR5-AUTH-A1 · cap $250,000Jurisdiction SGAutonomy A3Retention PROC-7YLegal hold HOLD-003
Model
Prompt
task-execution@p21
Policy
supplier-onboarding@v6
Tools
ledger-write@t7, document-fetch@t9
in fe3f0026...08f966out 7b3cec73...acde7eartifact ART-PR5B-1000-1 genesis → b7f539a6...1ce59d
2
Terms Assembly AgenttaskCleared
Cleared model delta
2026-08-18 05:10:00ZAuthority PR5-AUTH-A1 · cap $250,000Jurisdiction SGAutonomy A3Retention PROC-7YLegal hold HOLD-003
Model
Prompt
task-execution@p21
Policy
supplier-onboarding@v6
Tools
document-fetch@t9, read-only-lookup@t12
in ba7d69e6...724505out 9912985c...51feacartifact ART-PR5B-1000-2 b7f539a6...1ce59d → 58e84c7d...3db2d0
3
Director, Contract Managementaccountable-ownerCleared
Cleared legal check
2026-08-18 06:08:00ZAuthority PR5-AUTH-H1 · cap $250,000Jurisdiction SGAutonomy A0Retention PROC-7YLegal hold HOLD-003
Model
human@n-a
Prompt
human@n-a
Policy
supplier-onboarding@v6
Tools
none
in 50a2ce28...c2b7b2out 9c8f4ef2...77b0eaartifact ART-PR5B-1000-3 58e84c7d...3db2d0 → ff155763...b34553
4
Director, Contract Managementaccountable-ownerCleared
Cleared approve
2026-08-18 07:05:00ZAuthority PR5-AUTH-H1 · cap $250,000Jurisdiction SGAutonomy A0Retention PROC-7YLegal hold HOLD-003
Model
human@n-a
Prompt
human@n-a
Policy
supplier-onboarding@v6
Tools
none
in a1fd268e...0d8b1cout 78c751a7...0cd84cartifact ART-PR5B-1000-4 ff155763...b34553 → 09a27d6b...ae6f84
5
Template Selection AgentgbsIn progress
Holding at execute
2026-08-18 08:03:00ZAuthority PR5-AUTH-A1 · cap $250,000Jurisdiction SGAutonomy A3Retention PROC-7YLegal hold HOLD-003
Model
Prompt
task-execution@p21
Policy
supplier-onboarding@v6
Tools
ledger-write@t7, document-fetch@t9
in d5642099...114d01out a6dc3b29...82094dartifact ART-PR5B-1000-5 09a27d6b...ae6f84 → fdaad167...a18357
Authority relied on
Who was allowed to do this, up to what value, in which jurisdictions
Any unit on a contract execution 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 · SG · AUDelegated from Director, Contract ManagementExpires 2026-09-11
Anything the agent grant refuses, plus any override of an agent outcome. more
Cap $2,000,000US · UK · DE · SG · AUDelegated from Procurement & Source-to-Pay leadershipExpires 2027-02-07
Versions in force
Exactly what was running when these actions were taken
| Kind | Identifier | Version | Status | Owner |
|---|---|---|---|---|
| model | extract-lite | 2.9 | current | Platform model council |
| policy | supplier-onboarding | v6 | current | Chief procurement officer |
| prompt | task-execution | p21 | current | Shared service engineering |
| toolset | ledger-write | t7 | current | Finance systems |
| toolset | read-only-lookup | t12 | current | Platform engineering |
| toolset | document-fetch | t9 | current | Shared service engineering |
Gates on this line
The control points this unit had to clear
Legal check
Held for a named human when the unit exceeds the supplier contract decision envelope, when confidence falls below the floor, or when a policy clause is engaged.
Approver: Director, Contract Management · not reached
Approve
Held for a named human when the unit exceeds the supplier contract decision envelope, when confidence falls below the floor, or when a policy clause is engaged.
Approver: Director, Contract Management · not reached
Records schedule and holds
How long this evidence must be kept, and whether it is frozen
PROC-7Y7 years
Supplier and contract evidence
Contract limitation periods and public-sector supplier audit rights.
Deleted at seven years from contract expiry, not from record creation.
HOLD-003active
Supplier dispute — award challenge
An unsuccessful supplier has challenged an award on process grounds. more
Custodian Head of Commercial Law · requested by Chief Procurement Officer
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