OpenTechnical

OT-2026-000072331

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, single 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-2026-000072331) never changes.

Identity and time

Publication numberOT-2026-000072331 · never reused
Internal UUID01a0ae92-47c3-79d9-a03b-c1c7a80223eb · 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-2026-000072331
StatusPUBLIC

Content hashes

Canonical text9717bd9e0e514ad7aea7e2999a5d7883558daa652d56ad0c45b7c59113157094
Markdown08b5e6e43f9f416fbb7bd6cab4267218ff018f6fc8c3fde10c22c3c7f06b990b
PDF
Publication pagef4919de18d5fd18a29f51af29325123e98927cef41d6621f1f7675999972e384
Manifest1b4ceb2798725cb54bcdd9cb3a1ec4ff4ca74f23b70df09c95325db3c517a004

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
SignatureDuY/5HV4SC7qxp6BatV+NGnjt9NRZ17B8URJj4cfpaYwaz8e5Y4TkMKaoWy2nPgrrv0CS6cpWY4kCwfsflF5Cg==
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

2026-09-17T10:23:33.674907ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072331
observed f4919de18d5fd18a29f51af29325123e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:33.657754ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072331/manifest.json
observed 1b4ceb2798725cb54bcdd9cb3a1ec4ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:33.639530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072331/publication.md
observed 08b5e6e43f9f416fbb7bd6cab4267218...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:33.620513ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072331/publication.txt
observed 9717bd9e0e514ad7aea7e2999a5d7883...
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.