OpenTechnical

OT-2026-000069816

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, 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-2026-000069816) never changes.

Identity and time

Publication numberOT-2026-000069816 · never reused
Internal UUID01a0ae91-185f-7976-9067-afa7f974ff99 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:19.726120Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069816
StatusPUBLIC

Content hashes

Canonical text92c23d64ec8b6bb19fde080157684e590732a05957962417704f395eab5150ab
Markdown12a16232dec7d4a531e0df7596f70032bb7d6c37ec4bc6fd1cf2ba18ebcc2c28
PDF
Publication page5c37176c9c05c3860f303bc03f6384f72fb1233bd73fd6ff1c4eae5db7c85586
Manifest222d257fe9bbc09b84a80837614addf1eca6ca429b48decd37e0ec3b0a38fda5

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
SignatureQns7GbG5P0DT1fpbsIOfiwUyUY4P7yQNazeXCedob4aTSuBHLUi5dIs5JxwsBLx8CeI+SqZzdD27xFUwLdd8Cw==
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

2026-09-17T10:26:38.910066ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069816
observed 5c37176c9c05c3860f303bc03f6384f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:38.892283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069816/manifest.json
observed 222d257fe9bbc09b84a80837614addf1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:38.873450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069816/publication.md
observed 12a16232dec7d4a531e0df7596f70032...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:38.855667ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069816/publication.txt
observed 92c23d64ec8b6bb19fde080157684e59...
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.