OpenTechnical

OT-2026-000073590

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, two stage ejector, manifold 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-2026-000073590) never changes.

Identity and time

Publication numberOT-2026-000073590 · never reused
Internal UUID01a0ae92-efb9-79ba-8d80-253e06743ec1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073590
StatusPUBLIC

Content hashes

Canonical text725eeb85b5096beb3ead6ac5e11de2892bc367d7ad42364987fc627981cd289c
Markdownfbc0193f422d7ca6ad0a4cf97d5ca14ad4479c1a1308df0d7ee5b26e057c1ed7
PDF
Publication page488f5b41517b5df34a6d7f1fe0eb7725f015804fcb1017235ea39daeddd9bccd
Manifest0b60909eb5879e840a791511c3ced17c7f91fbafa309661c955b9824b0989903

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
SignatureTRRxKj+W3qi2WDy/edLLOHb9JbkM6bxNrxdMtDy9nZNlv4f+5mzvv0dPfv1bxKdxkDoe1WdPeS6MwaYpD4L2BA==
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

2026-09-17T10:21:46.198304ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073590
observed 488f5b41517b5df34a6d7f1fe0eb7725...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:46.181292ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073590/manifest.json
observed 0b60909eb5879e840a791511c3ced17c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:46.162002ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073590/publication.md
observed fbc0193f422d7ca6ad0a4cf97d5ca14a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:46.144482ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073590/publication.txt
observed 725eeb85b5096beb3ead6ac5e11de289...
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.