OpenTechnical

OT-2026-000089901

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, pump fed, manifold 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-2026-000089901) never changes.

Identity and time

Publication numberOT-2026-000089901 · never reused
Internal UUID01a0ae9c-428d-7774-92d5-17e8d22e11ae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089901
StatusPUBLIC

Content hashes

Canonical text68e4cbdb91e48a91d5ab4c3decf82625914207ee029050d641dbdebd3ea30d40
Markdown74a2a11752c5366b9b15c6afd08ebbfe9b6b2d024b51407837d6580f1a655e63
PDF
Publication pagea936809238d5054caf412250d1a2dfb95ea8a12aa80fd889d4c1fa069c241b7e
Manifestc44ec70fb2ed0e35a0c5854ea8230dab00807dfd5da8a9520e1ce64992e5399d

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
SignaturetAcdC/fzLQjO77C7gHEbRs0ukSHppV5mhHh8GdMRJUe99/HCUYRoI6RqpSAemnTh2ipYoadbd8NMMkimDXsWBA==
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

2026-09-17T09:45:10.065548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089901
observed a936809238d5054caf412250d1a2dfb9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:10.048022ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089901/manifest.json
observed c44ec70fb2ed0e35a0c5854ea8230dab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:10.029186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089901/publication.md
observed 74a2a11752c5366b9b15c6afd08ebbfe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:10.011776ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089901/publication.txt
observed 68e4cbdb91e48a91d5ab4c3decf82625...
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.