OpenTechnical

OT-2026-000072928

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, vented before set-down

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-2026-000072928) never changes.

Identity and time

Publication numberOT-2026-000072928 · never reused
Internal UUID01a0ae92-c814-73cd-8c11-d3848131850c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:10.336919Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072928
StatusPUBLIC

Content hashes

Canonical text9ad60ae6b836f5b5919a4fb7cf48b479ac20ef08de80c0284de1d96ec45448fa
Markdown81218885cc6819e16b885ca7c289d7c91dda9a9559de6ba51bf3058197ca68d8
PDF
Publication page3dec066ce461376f1c4298ed2fa87a2b077d2ff9d36ac35f46d7f3e166c82911
Manifestb2b93987891fdc78a93946302418735cfdbe00d5352d29553ae1cbfd085f8785

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
SignatureKu/mp5Eac6ibifC9Sgrr5mC4Jp5rRTFOPklUk38t9BWma9LNgi67nzV0MK1P/IbGYwrtFcraJJCt0tLTSqJKAw==
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

2026-09-17T10:21:50.627357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072928
observed 3dec066ce461376f1c4298ed2fa87a2b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:50.611220ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072928/manifest.json
observed b2b93987891fdc78a93946302418735c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:50.593143ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072928/publication.md
observed 81218885cc6819e16b885ca7c289d7c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:50.574349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072928/publication.txt
observed 9ad60ae6b836f5b5919a4fb7cf48b479...
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.