OpenTechnical

OT-2026-000001460

Publication integrity record

Device For Supporting And Holding The Gate of A Wedge Valve During A Maintenance Operation

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-2026-000001460) never changes.

Identity and time

Publication numberOT-2026-000001460 · never reused
Internal UUID01a0a676-2f53-7450-81fc-c2bf975d5c0b · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:05:58.355677Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001460
StatusPUBLIC

Content hashes

Canonical text7fe60dc7ce0a2a921a14c0362e5208f6ba202db8b2d349b26759e8f409266ec3
Markdowna23a5609a1d4cee871f1bc4a269650be56fe24d78fcfd30b21764dc88c3dca52
PDF
Publication pagea9fb626123273c7597bc9d271e9a173d2a0e112b4730a43c4e59fd4e682b84b7
Manifesta864faea2c9726e5d93902457b43ec4de078958ba3d835619a495deba1b5e396

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
SignaturesgMfY645Jde3U6chZjdzhS6PCv4RU8aMHK8h5swB8FCa77fD1jLEGLwn9Oa6pCyv2o92aJM66ZkL5GX4jLv0Cw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-09-15T20:10:13.212530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001460
observed a9fb626123273c7597bc9d271e9a173d...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:13.051699ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001460/manifest.json
observed a864faea2c9726e5d93902457b43ec4d...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:10:13.038022ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001460/publication.txt
observed 7fe60dc7ce0a2a921a14c0362e5208f6...
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