Verification chain
Four things are pinned, and each can be checked independently of the others.
The assessment PDF. SHA-256: 10a522fbd6b812366ce99c023ed7e0285592e795008ef15ae44b502dd79770ec
Download the file and run shasum -a 256 over it. If the value differs, the file is not the one struck here.
The timestamp. The receipt AOS-AAH-2026-001-v1.0.pdf.ots is an OpenTimestamps proof over exactly those bytes, submitted to four calendars on 13 September 2026 and pending confirmation in the Bitcoin blockchain at publication. It has since been anchored: the receipt served here carries one Bitcoin attestation. It establishes that the file existed no later than the moment it was stamped. It establishes nothing about whether the file is correct.
The assessed source. The assessment rests on nine pinned artefacts. Five of them are captures this practice retrieved from the publisher and holds as served; the other four are texts extracted from pinned PDFs by pdftotext -layout, which is the text every substring count and every detector verdict in this assessment was computed on. Two of the extractions were taken from blobs pinned by other registers of this corpus — asd-ai-cyber-defence-2026-08, attestation-survey-scoping-2026-08 — and the rest from this register’s own captures. Each blob was re-verified against the hash its row records when this page was generated; a miss would have stopped the render. Quotations were checked against the text layer of each pinned artefact - a web page with its markup stripped, the PDF’s extraction - not against page images; every count states the artefact it was taken from and the test that produced it, and every statement that something is absent states the population searched.
Re-fetch, measured at this case’s own pins. The log at RETRIEVAL-LOG-2026-09-12.tsv records four of the five own captures fetched twice within the minute under convention 50, each pair byte-identical. AAH-5 carries no second fetch and its stability is unmeasured; it is held as the record of a negative and no claim is made about it. The four extracted rows were not fetched: they are derived from blobs already pinned, and the originating retrievals for the two taken from other registers stand on those registers’ logs. No row is a Wayback Machine memento.
| Ref | Artefact | Extracted from | SHA-256 | Third-party copy |
|---|---|---|---|---|
| AAH-1 | Agentic AI Harnesses - The layer above the model, ASD, landing page as served; its First published field reads 11 Sep 2026. Stable across both fetches. | retrieved by this practice | f9435043e72237cd4f7eccfa838779d87e1682d20509df3f00896b0c023ba09c | - |
| AAH-2 | Agentic AI Harnesses - The layer above the model, ASD, publisher PDF, 12 pages. Stable across both fetches. | retrieved by this practice | 6cfba14702b47723a5bf87d9786518a90d0b7a00f1d09d3b2d289ca3641b402c | - |
| AAH-3 | Careful adoption of agentic AI services, ASD ACSC with CISA, NSA, Canadian Centre for Cyber Security, NCSC-NZ and NCSC-UK, landing page as served. Stable across both fetches. | retrieved by this practice | f0a700bec3ea3732fefbeef89f9c0dd275f638371842406bc3676eb1c4b91a02 | - |
| AAH-4 | Careful adoption of agentic AI services, publisher PDF, 29 pages, served from the publisher 2026-05 directory. Stable across both fetches. | retrieved by this practice | d41bc59cde8ddcc00bf69d09a3bef9f3c577225ba99f9d8aa61c2b76bc27b74d | - |
| AAH-5 | ASD artificial intelligence index page as served, cyber.gov.au. Its publication list is in the markup as served and carries fifteen cards, each with a title, a path and a description; thirteen of the paths sit beneath the artificial intelligence path. | retrieved by this practice | 21643fce7dfefa0f907144d5c55d29fc2e805379d7d35c24662c1f89deb19154 | - |
| AAH-T1 | Agentic AI Harnesses, text extracted from AAH-2 by pdftotext -layout; the text every substring count and detector verdict over this instrument was computed on. 380 lines, 22,396 bytes. | AAH-2 · this register | e978c859e2d5627a64dbffe5a0f23b6fc46664cf66a242ff7c74745d36b76725 | - |
| AAH-T2 | Careful adoption of agentic AI services, text extracted from AAH-4 by pdftotext -layout. 1,115 lines, 69,761 bytes. | AAH-4 · this register | f82aa7713a92bc1f0f3cc703b5f500ea336bd12a7f1aec6deed57568b4f6b2ef | - |
| AAH-T3 | Frontier AI cyber threat considerations for boards of directors, text extracted from AT-ASD-2 as pinned in attestation-survey-scoping-2026-08. 315 lines, 15,501 bytes. | AT-ASD-2 · attestation-survey-scoping-2026-08 | 5b32861df0597d8996fdf75a5c2164dad310cd2bf2e31c4107cb8ac14471add9 | - |
| AAH-T4 | Opportunities for AI in cyber defence, text extracted from A-GUID-1 as pinned in asd-ai-cyber-defence-2026-08. 806 lines, 51,313 bytes. | A-GUID-1 · asd-ai-cyber-defence-2026-08 | 3c973ba776ab80db3a386ed3f8d760a2fd445d86b79f787f408776f39be4f806 | - |
Of the nine artefacts, none is a third-party archival copy: no Wayback Machine memento is pinned here and no independent capture of any row is held. The five own captures were retrieved from the publisher by this practice; the four extractions derive from PDFs pinned here or by the registers named above. A reader must rely on this site, on those registers’ pages, or on the publisher’s server.
The build. The PDF is produced deterministically from tracked source by build.sh, with SOURCE_DATE_EPOCH pinned to midnight UTC of 13 September 2026, the publication day, which does not move at any revision. Repeat builds on one machine and one toolchain are byte-identical; independent third-party reproducibility is not established and is not claimed. Verify by SHA-256, not by rebuild.
Version history
One version. The assessment date and the publication date are both recorded, and they differ.
| Version | Assessed | Published | SHA-256 | Status |
|---|---|---|---|---|
| v1.0 | 12 September 2026 | 13 September 2026 | 10a522fbd6b812366ce99c023ed7e0285592e795008ef15ae44b502dd79770ec | current · download |
The cover carries 13 September 2026, the day this assessment was published. The reading it records was made on 12 September 2026, the date the sources were retrieved and the date the version table gives as assessed. Two dates are recorded because there are two acts, and the cover carries the later one.
Corrections
None. This is the first published version. Any correction to this assessment will be recorded here and in the practice’s corrections register, and the published bytes of this version will not move.
Corrections made before publication are not listed here. They are recorded in the case’s own pre-insertion audit, which is tracked with the source.
Assessment PDF
SHA-256: 10a522fbd6b812366ce99c023ed7e0285592e795008ef15ae44b502dd79770ec