OpenTechnical

OT-2026-000075887

Publication integrity record

Three cup vacuum gripper, three zone face, two 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-2026-000075887) never changes.

Identity and time

Publication numberOT-2026-000075887 · never reused
Internal UUID01a0ae94-29ff-74da-a309-72fa90eb0824 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075887
StatusPUBLIC

Content hashes

Canonical text046f70f74c1bbd2e8d8ec13ce5615988f44d51b89c34a9834f404326cbfc85eb
Markdown2e26536f6bbbb173a16af3a4ca233557591e6957a3bdd99e46057ba3cbf9cf37
PDF
Publication pagee24f4d292a8677890281d9bd37dc00d0656495b6432c15db48a51928054ecc6f
Manifest212e8a46119325380740c9f415e7b575cb58e2654e2aaed883c9d5bd0085d4db

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
SignaturezcN5ewL4dowiKxO5oVTCT1+FPJ2SZMJqwPAmR2Brc/GwRFKxH0CW2t5H+F3OEvrEJua20yVSpdxkHtlr6WsnAg==
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

2026-09-17T10:14:40.216768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075887
observed e24f4d292a8677890281d9bd37dc00d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:40.196404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075887/manifest.json
observed 212e8a46119325380740c9f415e7b575...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:40.062367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075887/publication.md
observed 2e26536f6bbbb173a16af3a4ca233557...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:40.043754ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075887/publication.txt
observed 046f70f74c1bbd2e8d8ec13ce5615988...
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.