OpenTechnical

OT-2026-000001727

Publication integrity record

Ratchet mechanism and hand tool

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-2026-000001727) never changes.

Identity and time

Publication numberOT-2026-000001727 · never reused
Internal UUID01a0a678-0408-7a8c-8ade-d6c854b7dae3 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:07:58.344542Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001727
StatusPUBLIC

Content hashes

Canonical text769eaffbdc7f203f325c2e513272c14fde86416492e3941598bd15c14729bf36
Markdown42d6d394781fd5f0f47eef27abb46ce27339376c073cb02da62394b99da0aad0
PDF
Publication page2856d247627f8eb4aa5017bbc1f60020c411183e32b89228b74faf3de96c9b41
Manifestd7a0d6da9d13a8b558dca54b1b6c77639d5ec5009e50261a04407d48bbe3d9ad

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
SignaturelfL1lRdzHMubz/g7IspdAd3F4W01weZslt65DmNyRAXuRrd5fNWGhZVHdRDLKiwNdsrOJPlQg5pl5LFBTunyDg==
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

2026-09-15T19:10:32.585358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001727
observed 2856d247627f8eb4aa5017bbc1f60020...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:32.432192ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001727/manifest.json
observed d7a0d6da9d13a8b558dca54b1b6c7763...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:10:32.419776ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001727/publication.txt
observed 769eaffbdc7f203f325c2e513272c14f...
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