OpenTechnical

OT-2026-000081754

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented after 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-2026-000081754) never changes.

Identity and time

Publication numberOT-2026-000081754 · never reused
Internal UUID01a0ae97-0f74-7685-8966-fb7c6ba60ab9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081754
StatusPUBLIC

Content hashes

Canonical text9a03a38bfa0a4fbb78974084bfe835eacf55fd17451784eaeeb27ed35ebc619e
Markdown9b812096cb73617603dcb962d96b7737e64492c53aba67323ef1acda5f59b811
PDF
Publication pageb891ad0819da6eea34c327eed16ec8cb19bace744d0e7e809737e94d1c627321
Manifest52ad3728697471cc13956a6b0fef4e9c01fcd0091ea894eadd3dd0ce300ae673

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
Signature2lJtBGU1YLTQ+sagpWUfWyIbs70/7xD591Dmy3VDGdqvWycGeHLrnwKKgeGXqelac//UB6pdOyTsRg3ycyr/Bg==
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

2026-09-17T09:59:50.436142ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081754
observed b891ad0819da6eea34c327eed16ec8cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.419200ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081754/manifest.json
observed 52ad3728697471cc13956a6b0fef4e9c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.400680ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081754/publication.md
observed 9b812096cb73617603dcb962d96b7737...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:50.381405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081754/publication.txt
observed 9a03a38bfa0a4fbb78974084bfe835ea...
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.