OpenTechnical

OT-2026-000087953

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, pump fed, supply line pressure sensor, sustained blow-off 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-2026-000087953) never changes.

Identity and time

Publication numberOT-2026-000087953 · never reused
Internal UUID01a0ae9b-1aa6-7ef7-9c9e-d4450d3692b0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087953
StatusPUBLIC

Content hashes

Canonical textd4f87489e4b1467a5c4711fb28f69bdd6ab865f529496ed3b23608629f99c020
Markdowncd76ad488a1faa3748b05a3d7447dd709a02ba309e8220bf6ce61c75778dc509
PDF
Publication page23203c15fd61ec08335ea88fa35165a6a22033d2e49fcab224e986a225873b65
Manifest01e2cb564cf87a25aefc408a9501e7dea9908899223d063405c8f42daf4cefe3

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
Signatureoah9eefreq8/j4gPwf/GKJJ6282X7wrc50mDd5TFM8YwNjGQs5LQPblEJ0C1LYu/ZgfQBRqEDM/udxTOAvNiDA==
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

2026-09-17T09:49:14.623024ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087953
observed 23203c15fd61ec08335ea88fa35165a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:14.606547ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087953/manifest.json
observed 01e2cb564cf87a25aefc408a9501e7de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:14.588082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087953/publication.md
observed cd76ad488a1faa3748b05a3d7447dd70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:14.568391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087953/publication.txt
observed d4f87489e4b1467a5c4711fb28f69bdd...
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.