OpenTechnical

OT-2026-000076791

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000076791) never changes.

Identity and time

Publication numberOT-2026-000076791 · never reused
Internal UUID01a0ae94-b070-7a0f-8483-1bb0b9d620b0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:15.236414Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000076791
StatusPUBLIC

Content hashes

Canonical text4187bd5d5f59d8ed64748a4e90f1871127bbb277aa87b1e31d3d98e066499ad5
Markdown1d4a923595818b234d1031818a1b534fe6f08759cef1507f8f25b3f6ade89ea2
PDF
Publication page6f250d20f0ae432316d4c1c10b41eaae61960953617aed8c688b3ed86d2b18d9
Manifest140d0e55ea421be1c3416c219080dca987add368ce7111831560c3baa54866a5

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
SignatureQ7WzdH7L5lkYN+ug1TNrE7KAlOa9bbOhYrjVjj1yjoRETiXCPwtSLwteMiWD3umYVCM42K0G7hl/Jb+rKaUsAA==
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

2026-09-17T10:09:39.318452ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076791
observed 6f250d20f0ae432316d4c1c10b41eaae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:39.299432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076791/manifest.json
observed 140d0e55ea421be1c3416c219080dca9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:39.281535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076791/publication.md
observed 1d4a923595818b234d1031818a1b534f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:39.262911ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000076791/publication.txt
observed 4187bd5d5f59d8ed64748a4e90f18711...
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.