OpenTechnical

OT-2026-000029563

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, 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-2026-000029563) never changes.

Identity and time

Publication numberOT-2026-000029563 · never reused
Internal UUID01a0ae73-5e22-7287-98ba-1285127ab5a1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:51.545382Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000029563
StatusPUBLIC

Content hashes

Canonical text6dda4f24e07681643ced86d7f45f31c6772e15045c9fff1f021c50f4fbcef2ce
Markdowna20014d7489bb3fc7e56fef7a729a6510ad178c029c3b5ce5182147bcf5a3c2e
PDF
Publication page29475b579e74a03b2ed053e7279080ff578a7e0bb58a4818d04a0c4be2adb4bc
Manifest5d639b6bf0920a7cde88df0df0b45d7f64a477c863e04b4c4e4cf7fca6a17f63

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
SignatureIbERsaUaq3tYpxbAqs5S1PBqI2bP8k2PF/pBoUS9RF76dRDrN0HQHUd+Pr7M4U5TDj+g0d9EozOoFoXR8vsOCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:39:15.552141ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029563
observed 29475b579e74a03b2ed053e7279080ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:15.533938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029563/manifest.json
observed 5d639b6bf0920a7cde88df0df0b45d7f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:15.514624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029563/publication.md
observed a20014d7489bb3fc7e56fef7a729a651...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:39:15.492508ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000029563/publication.txt
observed 6dda4f24e07681643ced86d7f45f31c6...
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.