OpenTechnical

OT-2026-000071543

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, two stage ejector, supply line pressure sensor, 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-2026-000071543) never changes.

Identity and time

Publication numberOT-2026-000071543 · never reused
Internal UUID01a0ae91-e0ee-7870-b552-4ee41edc704c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071543
StatusPUBLIC

Content hashes

Canonical textc99baf4bf437b82580b3d447fc6b0d1a1bb5939c22b1008d7448007a6a6bb29d
Markdown1babe0d05e2a3e23b3d99676c832fb26859c886973ec4635f6125ddd9b9f1b86
PDF
Publication page79d29f7139899e25f4fbeac0db7a6777c94097e314b8838aa9dc500149a66735
Manifest76d5b3a11f34c73e3c2a7ffe28248607f74efc1b10eecbd84b3e8536426ddbba

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
SignaturetrODQEAcLwlBlx+OmmPEUYiN97/1JzUMDj9ynHSPM/xjO740ibM5IzvAQsKkadkeECQ4tFzQdGxjLpgway3iBA==
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

2026-09-17T10:25:11.776791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071543
observed 79d29f7139899e25f4fbeac0db7a6777...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:11.759917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071543/manifest.json
observed 76d5b3a11f34c73e3c2a7ffe28248607...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:11.742663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071543/publication.md
observed 1babe0d05e2a3e23b3d99676c832fb26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:11.723825ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071543/publication.txt
observed c99baf4bf437b82580b3d447fc6b0d1a...
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.