OpenTechnical

OT-2026-000091129

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, three stage ejector, pressure sensor per zone, 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-2026-000091129) never changes.

Identity and time

Publication numberOT-2026-000091129 · never reused
Internal UUID01a0ae9c-f16b-7181-b16a-757df9ac655f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091129
StatusPUBLIC

Content hashes

Canonical textd4a2c098cefa6c98907b5cde194a32c3a18ac324a0123a8310066f271eb3e3c7
Markdownfc87401fbb4d60829fc7be8ba5b03182d140df8028ff4732e6207a69dd31526e
PDF
Publication pagea4a6a2d259c186cf52ae72380653ebaabd7a422c2f4959a3b9b78e0b51d884f4
Manifesta03ddca9e172026b80fd1d74a99df4d640a2bd4c618e26b9abde82524e81cd19

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
Signature3Q18dvtzz8BsxPwBJDgzBtMtOzokPGUXsGI0OJqCd4irWbJHFuOPpQnNDw6/3pXjtA6GFqRTS4eiMuoEPtNxBw==
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

2026-09-17T09:43:17.090974ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091129
observed a4a6a2d259c186cf52ae72380653ebaa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:17.073610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091129/manifest.json
observed a03ddca9e172026b80fd1d74a99df4d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:17.056404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091129/publication.md
observed fc87401fbb4d60829fc7be8ba5b03182...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:17.037329ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091129/publication.txt
observed d4a2c098cefa6c98907b5cde194a32c3...
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.