OpenTechnical

OT-2026-000013150

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, 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-2026-000013150) never changes.

Identity and time

Publication numberOT-2026-000013150 · never reused
Internal UUID01a0ae6d-6fc8-768c-8cd6-afa73f46904a · 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-2026-000013150
StatusPUBLIC

Content hashes

Canonical text18e86cfabb0d2dd31921b9e65d061a15c9d9ab79af4cba948a5dbf4910698d24
Markdown8117345f5145975325ac57023f1b40c8672f9b151f70c2c66c8fc6e6c176cea5
PDF
Publication page37dda9d95240ac4f5b75a8d1cb0561a1c8973f42c462ebf0f30abbd252b78927
Manifest4d419abae072121f38a62c4d94350daf16a1a372be31e16e0d88fae4bcf3071a

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
Signatureu4LSguLW6MAdpz6Bo/X4cEA6s6K1cAmvXax898MEV1tbtshbEHzm+0WV7LuNmspGT/GxsIa7X6YEwmBeDnMyCg==
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

2026-09-17T12:09:31.003771ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013150
observed 37dda9d95240ac4f5b75a8d1cb0561a1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.982967ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013150/manifest.json
observed 4d419abae072121f38a62c4d94350daf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.962902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013150/publication.md
observed 8117345f5145975325ac57023f1b40c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:09:30.943029ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013150/publication.txt
observed 18e86cfabb0d2dd31921b9e65d061a15...
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.