Procurement
Cycle integrity and independent verification
Procurement arrives from a partnership announcement describing policy-layer governance. The runtime evidence below documents what is actually executing.
Current period 2026-04
Receipts attested 2,411,183 99.97% · STH-signed
Last STH 02:00:00 UTC Ed25519 · RFC 6962
Verifier in-browser no network · no vendor
Period integrity
Every record for a monitoring period is included in a Merkle tree per RFC 6962. The tree’s root is signed (Signed Tree Head, Ed25519) and published below. Any party can independently rebuild the tree from records and confirm the root.
Cycle 2026-04 (current)
STH-signed Merkle tree (RFC 6962)Records included 2,411,183
Verified 99.97%
Tree size 2,411,183
Signed at Tue, 12 May 2026 02:00:00 UTC
Merkle root
8e1a4b27f9c3e6d05a8b1f3c7d2e4a6b9f0c1d2e3a4b5c6d7e8f9a0b1c2d3e4f5STH signature (Ed25519)
How to verify this period root →yoLPyP2O3UTtqX5Di3pZQChvggPdnia0fcSo3dq3zbTN67LOWm+UVYFDnEjK1wbtu1D849K3QqY5tsnKy2a3Dw==Previous periods
| Period | Records | Verified | Merkle root | Published |
|---|---|---|---|---|
| Cycle 2026-03 | 2,317,491 | 99.96% | 3a7c91d8e4f2b6058c…f1a3b5c7d9 | Fri, 01 May 2026 00:02:51 UTC |
| Cycle 2026-02 | 2,186,044 | 99.94% | f5d0e8b3a92c7e14d8…3f5a7c9e1b | Wed, 01 Apr 2026 00:11:18 UTC |
| Cycle 2026-01 | 1,942,775 | 99.91% | 1c3e5a7b9d2f4081c3…d2f4081c3e | Sun, 01 Mar 2026 00:08:33 UTC |
Policy describes intent and is reviewed periodically. Runtime emits cryptographic evidence per AI check and is verifiable continuously. The diagram below describes what runs where.
What is documented
Reviewed periodically · executive-signed
- Centralized AI inventory. Every model and use case cataloged in a structured GRC platform.
- Risk-based intake workflows. New capabilities pass a documented assessment before deployment.
- Audit-ready documentation. Policies mapped to NIST AI RMF, EU AI Act, and state laws.
- Periodic model assessments. Performance, bias, and impact reviewed at defined cadence.
What is executing
Continuous · mathematically verifiable
- Ed25519 signature per AI check. Every output paired with a tamper-evident record naming the feature, prompt, evidence-span hash, and time signature.
- Hold on missing evidence. Outputs citing nonexistent spans or unsupported results are blocked before any program reviewer sees them.
- Daily fairness test set. Three text-analysis prompts × five demographic checks. Findings published within 48 hours of detection.
- Per-period Merkle verification. Every record in a monitoring period is included in an RFC 6962 tree. Root is STH-signed and publicly anchored.
Live record stream — last 20
Most recent twenty signed AI-check records. Applicant identifiers are masked. Each entry is a one-line view; click an ID to retrieve the full signed record JSON.
- 13:58:47 UTC Cortex Screening Composite signal · Moderate 2026-•••44
r_a7f2e91b - 13:58:21 UTC Career Interest Strong 2026-•••12
r_4f2b9c1e - 13:57:58 UTC Grade Normalization Band 4 (84th percentile) 2026-•••08
r_d8c1e453 - 13:57:14 UTC Cortex Screening Composite signal · High 2026-•••72
r_3b9e7a02 - 13:56:55 UTC Career Interest Limited 2026-•••35
r_8f1d2c46 - 13:56:09 UTC Cortex Screening Composite signal · Moderate 2026-•••81
r_e4b6a07d - 13:55:31 UTC Grade Normalization Band 3 (71st percentile) 2026-•••27
r_92c1f8b4 - 13:54:58 UTC Career Interest Moderate 2026-•••64
r_7d3e9a12 - 13:54:22 UTC Cortex Screening Composite signal · Moderate 2026-•••19
r_1f5c8d3e - 13:53:47 UTC Grade Normalization Band 5 (91st percentile) 2026-•••93
r_b6e2a5f9 - 13:53:11 UTC Cortex Screening Composite signal · High 2026-•••55
r_4c8d1a67 - 13:52:43 UTC Career Interest Strong 2026-•••03
r_a9f3e814 - 13:52:09 UTC Cortex Screening Composite signal · Moderate 2026-•••76
r_2e7b9c41 - 13:51:38 UTC Grade Normalization Band 4 (79th percentile) 2026-•••48
r_5d1a3f29 - 13:51:02 UTC Career Interest Strong 2026-•••91
r_c8e4b072 - 13:50:28 UTC Cortex Screening Composite signal · Limited 2026-•••38
r_f1a9d6c3 - 13:49:57 UTC Grade Normalization Band 3 (68th percentile) 2026-•••24
r_9b2e7a48 - 13:49:21 UTC Career Interest Moderate 2026-•••67
r_3e8c5d1f - 13:48:46 UTC Cortex Screening Composite signal · High 2026-•••11
r_7a4f9b25 - 13:48:12 UTC Career Interest Strong 2026-•••82
r_d6b1e493