Auditor evidence pack

Invoice at post

Procurement & Source-to-Pay · Invoice & Three-Way Match · line PR9C · Period Accrual. more

Chain verified

Every record links to the one before it and hashes to its stored value. 4 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

Append-only, sequenced

Agent actions

Taken by software

Human actions

Taken by a named person

Refusals

Blocked by the authority register

Corrections

Later record supersedes an earlier one

Legal hold

Held

HOLD-003

The unit

What the work was, and where it sits

Reference

PR9C-1024

Subject

Ines Achebe

Requested by

Callum Ito

Value

$73k

Materiality

medium

Currently held by

S2P spine (gbs)

Sub-function owner

Director, Accounts Payable Operations

Orchestrator

Invoice Match Orchestrator

Every action, in order

Actor, authority, versions in force, and the hash link to the record before it

Invoice Capture AgentgbsCleared

Cleared identify unmatched

2026-08-18 04:59:00ZAuthority PR9-AUTH-A1 · cap $250,000Jurisdiction USAutonomy A4Retention PROC-7YLegal hold HOLD-003

Model

[email protected]

Prompt

task-execution@p21

Policy

supplier-onboarding@v6

Tools

ledger-write@t7, document-fetch@t9

in 706dd77a...a40931out 17bd1ebd...2c1e5bartifact ART-PR9C-1003-1 genesis → 976042a5...4bb891

Invoice Capture AgentgbsCleared

Cleared model accrual

2026-08-18 05:59:00ZAuthority PR9-AUTH-A1 · cap $250,000Jurisdiction USAutonomy A4Retention PROC-7YLegal hold HOLD-003

Model

[email protected]

Prompt

task-execution@p21

Policy

supplier-onboarding@v6

Tools

ledger-write@t7, document-fetch@t9

in 56e25c84...a7f30aout 3c5e9ffb...c518aeartifact ART-PR9C-1003-2 976042a5...4bb891 → 83176779...229edf

Director, Accounts Payable Operationsaccountable-ownerCleared

Cleared controller review

2026-08-18 06:59:00ZAuthority PR9-AUTH-H1 · cap $250,000Jurisdiction USAutonomy A0Retention PROC-7YLegal hold HOLD-003

Model

human@n-a

Prompt

human@n-a

Policy

supplier-onboarding@v6

Tools

none

in a88c0899...93d058out cc21859b...e8f08cartifact ART-PR9C-1003-3 83176779...229edf → 4a58c20d...c22f48

Invoice Capture AgentgbsIn progress

Holding at post

2026-08-18 08:00:00ZAuthority PR9-AUTH-A1 · cap $250,000Jurisdiction USAutonomy A4Retention PROC-7YLegal hold HOLD-003

Model

[email protected]

Prompt

task-execution@p21

Policy

supplier-onboarding@v6

Tools

ledger-write@t7, document-fetch@t9

in f9f51857...d1a8eeout cb49b38a...9068caartifact ART-PR9C-1003-4 4a58c20d...c22f48 → 4f2618f1...bb5a4b

Authority relied on

Who was allowed to do this, up to what value, in which jurisdictions

PR9-AUTH-A1ActiveInvoice Match Orchestrator

Any unit on a invoice & three-way match line where every intake check passed, the policy in force is current, and the value sits inside the cap below.

Cap $2,000,000US · UK · DE · SG · AUDelegated from Director, Accounts Payable OperationsExpires 2027-05-14

PR9-AUTH-H1ActiveDirector, Accounts Payable Operations

Anything the agent grant refuses, plus any override of an agent outcome. more

Cap $25,000,000US · UK · DE · SG · AUDelegated from Procurement & Source-to-Pay leadershipExpires 2027-07-10

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	document-fetch	t9	current	Shared service engineering

Gates on this line

The control points this unit had to clear

Controller review

Held for a named human when the unit exceeds the invoice decision envelope, when confidence falls below the floor, or when a policy clause is engaged.

Approver: Director, Accounts Payable Operations · 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