OpenTechnical

OT-2026-000013677

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, 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-2026-000013677) never changes.

Identity and time

Publication numberOT-2026-000013677 · never reused
Internal UUID01a0ae6d-8de8-7ef5-b05c-e2ddde2af76c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013677
StatusPUBLIC

Content hashes

Canonical textabb9ac7d138441bcde434b0d2138dc16ba83521e7800b56ba3d0c94a33515638
Markdown185b2b81defe0fd842fe105192a8c2d1a19f829a9eb8af0f2298ca1b02210fa7
PDF
Publication page8556ed03b46e0b7c0d223d81bb3d89812e2eafe9632b546fcef78f51b4d41351
Manifest9c634ab6b8d48dd0b2c0f4c454a851a126cd903269c3df5ab31edf2fc9a80e8c

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
SignaturerWvYIU4MGDQKF23iO9uQe/EXTZ8fTrSXVfgwc7vdBio+mu+ToiKwRBB18V4+rKjs2S8JsK84GqcWnADi1/cVCg==
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

2026-09-17T12:08:37.456911ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013677
observed 8556ed03b46e0b7c0d223d81bb3d8981...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:37.435805ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013677/manifest.json
observed 9c634ab6b8d48dd0b2c0f4c454a851a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:37.416447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013677/publication.md
observed 185b2b81defe0fd842fe105192a8c2d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:37.397779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013677/publication.txt
observed abb9ac7d138441bcde434b0d2138dc16...
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.