OpenTechnical

OT-2026-000077970

Publication integrity record

Single bellows cup vacuum gripper, three stage ejector, vented after 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-2026-000077970) never changes.

Identity and time

Publication numberOT-2026-000077970 · never reused
Internal UUID01a0ae95-2ed1-77ef-934a-05f23dadafcd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077970
StatusPUBLIC

Content hashes

Canonical text9842b3d7db69f51b3d3c238eab99e073fa25c6d93435d454afd6760056afad31
Markdownd72f7777d346f792b45f61769128a878f973a7bda85c41a69f6ce3546177bd7f
PDF
Publication pagef9056c2181e704211f9d0e8f23fe340e92d4945821ec07ee90779c24cfc6acdd
Manifestd063a7eab5874450f7fdb967246b6b0134311e787ddefe488dc0fc3b4a5480a0

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
SignatureyNGgfM83bJ+BSQ8eSF0k5a3Ea3bFydOTGf6qYBNxtJjvYUDeAXvKyjGD21Ngp2vNW96gkqxQOYGKcmGmvd50CQ==
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

2026-09-17T10:10:22.464737ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077970
observed f9056c2181e704211f9d0e8f23fe340e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:22.442144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077970/manifest.json
observed d063a7eab5874450f7fdb967246b6b01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:21.794978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077970/publication.md
observed d72f7777d346f792b45f61769128a878...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:10:21.775858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077970/publication.txt
observed 9842b3d7db69f51b3d3c238eab99e073...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:15.250020ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077970
observed f9056c2181e704211f9d0e8f23fe340e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:15.232081ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077970/manifest.json
observed d063a7eab5874450f7fdb967246b6b01...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:15.215069ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077970/publication.md
observed d72f7777d346f792b45f61769128a878...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:15.197601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077970/publication.txt
observed 9842b3d7db69f51b3d3c238eab99e073...
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.