Module two
Immutable Audit Log
Every action appends a signed, hash-chained record. Entries cannot be edited or deleted; corrections are written as new entries that reference the original.
Ledger entries
240
Append-only
Chain verified
240
Hash links intact
Integrity failures
0
None detected
Last sweep
2026-08-02 09:10:00Z
Runs every 15 minutes
Integrity status
Continuous verification of the append-only hash chain
Hash chain continuous and signed
Every entry hash equals SHA-256(previous hash + payload). The sweeper re-walks the full chain every 15 minutes and signs the resulting checkpoint.
Ledger
240 matching entries
| Timestamp | Action | Module | Rule | Verification ID | Proof hash | Result | Signature | Integrity |
|---|---|---|---|---|---|---|---|---|
| 2026-08-02 08:54:00Z | Eligibility rule evaluated | Decision Engine | ENG-4.2.1 | vrf_23bc7d0dc3393432 | 161cd77df1cd08… | pass | valid | linked |
| 2026-08-02 08:27:00Z | Eligibility rule evaluated | Decision Engine | ENG-4.2.1 | vrf_5a214f877c1bc615 | 498e3945a8c506… | pass | valid | linked |
| 2026-08-02 08:10:00Z | Eligibility rule evaluated | Decision Engine | ENG-4.2.1 | vrf_4c96b7562a0910e2 | 31519761d08eec… | pass | valid | linked |
| 2026-08-02 07:38:00Z | Device attestation refreshed | Identity Services | FED-2026.03 | vrf_835482b4684c1a77 | cb2088f6258f5e… | pass | valid | linked |
| 2026-08-02 07:21:00Z | Passkey assertion accepted | Identity Services | FED-2026.03 | vrf_d1125a287dc3e1f9 | 43691b2fa16fad… | pass | valid | linked |
| 2026-08-02 07:04:00Z | Eligibility rule evaluated | Decision Engine | ENG-4.2.1 | vrf_5503e69cbf076935 | 8fc6b6ca670220… | pass | valid | linked |
| 2026-08-02 06:37:00Z | Verification failed — stale proof | Decision Engine | ENG-4.2.1 | vrf_de660853ff65f368 | 66ce4ad8c4cf0a… | fail | unverified | linked |
| 2026-08-02 06:11:00Z | Credential proof verified | Credential Wallet | FED-2026.03 | vrf_458fc98d6ba9d95a | 3415ed96978740… | pass | valid | linked |
| 2026-08-02 05:55:00Z | Ledger integrity sweep | Audit & Governance | FED-2026.03 | vrf_c8ac7246ec0c7f7a | 7cd372011c68f2… | pass | valid | linked |
| 2026-08-02 05:31:00Z | Credential proof verified | Credential Wallet | FED-2026.03 | vrf_3ea7b77d1f3acad7 | 9cd86448375791… | pass | valid | linked |
| 2026-08-02 05:15:00Z | Eligibility rule evaluated | Decision Engine | ENG-4.2.1 | vrf_ddf03966bf8d4434 | 8b920485aebd63… | pass | valid | linked |
| 2026-08-02 04:47:00Z | Passkey assertion accepted | Identity Services | FED-2026.03 | vrf_28254084cb571414 | 4f552dd9e4e47a… | pass | valid | linked |
| 2026-08-02 04:28:00Z | Credential proof verified | Credential Wallet | FED-2026.03 | vrf_2e4625c20028174c | 30508cc5d62194… | pass | valid | linked |
| 2026-08-02 04:04:00Z | Ledger integrity sweep | Audit & Governance | FED-2026.03 | vrf_968f91ed31f4468d | 1f5b57eeb19b52… | pass | valid | linked |
| 2026-08-02 03:40:00Z | Device attestation refreshed | Identity Services | FED-2026.03 | vrf_5e5a61817e042364 | ea6bf32641ae0d… | pass | valid | linked |
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