OpenTechnical

OT-2026-000077219

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, single stage ejector, 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-2026-000077219) never changes.

Identity and time

Publication numberOT-2026-000077219 · never reused
Internal UUID01a0ae94-f508-7efc-972d-d99813bcb3bb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077219
StatusPUBLIC

Content hashes

Canonical textf63be78cc14e94b7bf65e3517c9574279ea91f5c1df8f293313ac95e22e51f9e
Markdownf84357e28acf96ac24610ccff12c6b005d727fe5ab33e4edf46d0a553b5d01ca
PDF
Publication page1b40477e074bc0dc31ae82be69ebd8d9e581aea16a9e527603a67a143e871731
Manifestb803f67061640f497cdaeaa9c2fbfeef1ff20e23016e31ca74a489c818426ee9

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
SignatureEutQ5iK3+BrNCWaFQTi+YY/BxMRnVmhtylXAxDIg7mcn6FaacTc1ZgS3ZXb+OZWqfztPOGnq4Gh66GpiE89WBg==
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

2026-09-17T10:08:49.397862ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077219
observed 1b40477e074bc0dc31ae82be69ebd8d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:49.379721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077219/manifest.json
observed b803f67061640f497cdaeaa9c2fbfeef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:49.360159ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077219/publication.md
observed f84357e28acf96ac24610ccff12c6b00...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:49.341603ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077219/publication.txt
observed f63be78cc14e94b7bf65e3517c957427...
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.