OpenTechnical

OT-2026-000013254

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, plant vacuum 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-2026-000013254) never changes.

Identity and time

Publication numberOT-2026-000013254 · never reused
Internal UUID01a0ae6d-6fc9-7775-a1c1-22bac913e7ea · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:22.837188Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013254
StatusPUBLIC

Content hashes

Canonical textcd0b0c53fc0a8cbf48cb3950d4923cb6a6c433dbaeb370312792bb29d73515e6
Markdown48282b0d1cdb09105ee802063a0ac667a33334d226fcf2f7b5ea9241b0da6dbc
PDF
Publication page900ec76765763505f51185c5207cfcbbb3bc9dea8d38c90329b71fe69f76b622
Manifest831747999ad4bce5a7d09c7581d084cae9ca4fcd53a7f9ad5a537df5782d62af

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
SignatureGBDgISdVTuhvv5qYhojs1DhN1k/cCfLq4ytfxMQPTpgTLzUhXWmFQfSSX/lLDCVmK7K3syOJNfhicpxB9w2vCQ==
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

2026-09-17T12:09:39.630877ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013254
observed 900ec76765763505f51185c5207cfcbb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:39.610191ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013254/manifest.json
observed 831747999ad4bce5a7d09c7581d084ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:39.591947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013254/publication.md
observed 48282b0d1cdb09105ee802063a0ac667...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:39.573635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013254/publication.txt
observed cd0b0c53fc0a8cbf48cb3950d4923cb6...
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.