OpenTechnical

OT-2026-000072207

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, plant vacuum 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-2026-000072207) never changes.

Identity and time

Publication numberOT-2026-000072207 · never reused
Internal UUID01a0ae92-47c2-7d1b-ab60-4a3d7e312900 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072207
StatusPUBLIC

Content hashes

Canonical text873d8c479ffda46607ca6c6e1083dfa8ae259b6718792df0b239847c7f7bced4
Markdown311d484107f9fc7daed58b92882662b2b9fcf67236c011088a4555800f1b3b09
PDF
Publication page168a94c62eaa61fc5280f26963d52857064e0d59b0cebef7c2245c761d8c9706
Manifest28d5b74edbdb67d3c0bf96e0e84de0db68e22f9e1dc255a152b14ae6df1ea72c

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
Signature2Pq8fIkhRjQRhgt50eXIObCMNae9YZmWdsN94MDGZPo/6jdtICslxQeO/Ii/taq7GTRW2ndXoTbZ03ZWAJM8Aw==
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

2026-09-17T10:23:18.518208ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072207
observed 168a94c62eaa61fc5280f26963d52857...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:18.500951ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072207/manifest.json
observed 28d5b74edbdb67d3c0bf96e0e84de0db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:18.485112ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072207/publication.md
observed 311d484107f9fc7daed58b92882662b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:18.468831ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072207/publication.txt
observed 873d8c479ffda46607ca6c6e1083dfa8...
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.