OpenTechnical

OT-2026-000071617

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, 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-2026-000071617) never changes.

Identity and time

Publication numberOT-2026-000071617 · never reused
Internal UUID01a0ae92-1e90-794b-91bd-61fccc962829 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071617
StatusPUBLIC

Content hashes

Canonical text8b8b1bc65e5a02fc23293fc54891b1e3f2e91c1425279b54e5e0fa5d88243612
Markdown3b1bd53e805511581848092ebef2b039be4b28420340190e72df9af76f493da1
PDF
Publication page040fa2a542d80cd29a1ba9ce8178be469d9a53a930d76ca1b9c03d6c68a7593c
Manifest41c135d26e1d2331646d7850cfb5355b3798961ea4e97fffa93bfc463f762e44

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
SignatureUDEiU+aa2M89V6SoPBeTusrfDmUb+Fjc7ibDNBjAMSY7F96koW9n6QDCbX88bi0NNUfcb48p0ripy5sr3CUwAw==
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

2026-09-17T10:23:39.098082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071617
observed 040fa2a542d80cd29a1ba9ce8178be46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:39.080452ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071617/manifest.json
observed 41c135d26e1d2331646d7850cfb5355b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:39.064861ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071617/publication.md
observed 3b1bd53e805511581848092ebef2b039...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:39.048575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071617/publication.txt
observed 8b8b1bc65e5a02fc23293fc54891b1e3...
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.