OpenTechnical

OT-2026-000013667

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, single stage ejector, 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-2026-000013667) never changes.

Identity and time

Publication numberOT-2026-000013667 · never reused
Internal UUID01a0ae6d-8de8-71e0-8530-6795a47fd53b · 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-2026-000013667
StatusPUBLIC

Content hashes

Canonical text03b7adbf38ec1be1814869bc2a637f4df72113adbc05335158ec65b8949a9a88
Markdown3a4be9f718635f9b8ed09a54db59ebd972db8cbe2d127b9ad314d8e94b3271ed
PDF
Publication page6888536930e68c6c4a88cef70b25dc618b3b086f73024d8ad0b7e1f03e830f76
Manifest1991c1828c493c1817b88513fea28cbccbe7809212aaa9b3f2ff0a66dec4fff3

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
SignaturebBLyGJd1HVRaEvJBsQtaM5/6BZbT/VFJ2jULlPEe2Xk1BuUat9eGiQc6RjrT1GtqfZQ2U3/TF9bXJYeqvgNbAg==
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

2026-09-17T12:08:36.671518ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013667
observed 6888536930e68c6c4a88cef70b25dc61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:36.652522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013667/manifest.json
observed 1991c1828c493c1817b88513fea28cbc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:36.632480ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013667/publication.md
observed 3a4be9f718635f9b8ed09a54db59ebd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:36.611309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013667/publication.txt
observed 03b7adbf38ec1be1814869bc2a637f4d...
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.