OpenTechnical

OT-2026-000002383

Publication integrity record

Ladder assembly for a fire apparatus

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000002383) never changes.

Identity and time

Publication numberOT-2026-000002383 · never reused
Internal UUID01a0a67c-49f2-7bd7-b122-7ea28cec4c16 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:12:38.387204Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002383
StatusPUBLIC

Content hashes

Canonical text1beb1680f0828a3d769b43c370ae8fdc827e882821a460461eb4fe85121cf7a7
Markdown49731424494b45c21f03db53649c3125531b0b4a854ae249cbaafc23cd547ac9
PDF
Publication pagebbf6132f24cd229d369edff02a1e8e55f7c0ef3cf029d560a28aab37006a7edd
Manifest7e1935618d5647f7050f9c348473d282de3d4b6913f6c1205bc7796d8a720367

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignaturerF0OR0437wlk3BrdRDYV7z7PonElyTF0VFrk6Z5DnQXf7E0ZJnF1XScwKkGvYGuIcVARoa+BIow3zjR7HKzuBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-09-15T19:40:21.542956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002383
observed bbf6132f24cd229d369edff02a1e8e55...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:21.514061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002383/manifest.json
observed 7e1935618d5647f7050f9c348473d282...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:21.501995ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002383/publication.txt
observed 1beb1680f0828a3d769b43c370ae8fdc...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent