OpenTechnical

OT-2026-000074678

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, two stage ejector, 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-2026-000074678) never changes.

Identity and time

Publication numberOT-2026-000074678 · never reused
Internal UUID01a0ae93-ac2b-7f50-ad2e-08e9dc080bab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074678
StatusPUBLIC

Content hashes

Canonical text53a77d36006f8df6a649ed5fb59a406a0c5b2ee0c26fc8e931374b65cebb7b94
Markdown4e815e0373cda0ce33710bcd5c38b14c8901dd4932beef986aae8fe9f4e30205
PDF
Publication page1fad189f320bb465a21e42a76a4b5c0dbec81a42c0df01badd35ea0bc3c9a69e
Manifest6059d236e8f0fb7638f60f56349ae4b546beaa75f22928bd64fac70806381149

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
Signature0LIaixGyJXMZsT2jxYuwti22yvZxg4HqArIIYGeGlORudHQje2vpL/j01ziOoNP1WJG5m+VnMo07XL2gmkylAQ==
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

2026-09-17T10:18:15.702803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074678
observed 1fad189f320bb465a21e42a76a4b5c0d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:15.685396ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074678/manifest.json
observed 6059d236e8f0fb7638f60f56349ae4b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:15.667648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074678/publication.md
observed 4e815e0373cda0ce33710bcd5c38b14c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:15.649153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074678/publication.txt
observed 53a77d36006f8df6a649ed5fb59a406a...
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.