OpenTechnical

OT-2026-000074258

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, plant vacuum fed, supply line pressure sensor, vented before set-down, on a tool changer

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-2026-000074258) never changes.

Identity and time

Publication numberOT-2026-000074258 · never reused
Internal UUID01a0ae93-7178-7b78-89b9-8499f779cb96 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074258
StatusPUBLIC

Content hashes

Canonical textc0271a59877d9b99b6d0a466341b3edb515d2f2a8d00711a3c025b242ae7fba8
Markdown789cc25139d75f53dd81b0d219e91935a49d274bac0a924354539068de1aead5
PDF
Publication page1a0a7521a6ed1cbf9e959239761664fdf47d0392ea5464ce3600ba03e3818f31
Manifest912d597994cc788413f0dedd3441985ad123089120f217c24f7eba888bf3b300

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
Signature018jTovzBZjLzrY/zllmGBFrcf42/CSKLhLaRlW/hmu31Kst8iq5ybKJnc8cYYjGtHhjoTDsXan5as+eiCXJBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:19:09.515919ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074258
observed 1a0a7521a6ed1cbf9e959239761664fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:09.498171ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074258/manifest.json
observed 912d597994cc788413f0dedd3441985a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:09.480846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074258/publication.md
observed 789cc25139d75f53dd81b0d219e91935...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:09.462438ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074258/publication.txt
observed c0271a59877d9b99b6d0a466341b3edb...
fetched by instance-3.rotem.ai from 34.69.0.72, 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

Custody packagePending Custody packages are produced weekly.