OpenTechnical

OT-2026-000021246

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, 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-2026-000021246) never changes.

Identity and time

Publication numberOT-2026-000021246 · never reused
Internal UUID01a0ae6f-865c-7d26-9702-b937edf83e5f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:39.631048Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021246
StatusPUBLIC

Content hashes

Canonical text1dbff80bcead1b3415f58e9ae4c2e565c722ec84f2f75f8737ee0ec04360863e
Markdown2d576c5d17b3a87fbb555f45808c5dac8732ab238c7123ac7273dd279fcd403e
PDF
Publication page1aac6cd1f922b1fd323d8d647ec6c045e669e0438959b37327d4c824c2d35e8c
Manifestd32f5fcac236b81e13af94ca2318b7302d7f5ceccab6ec06679fee6ab0235dfe

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
SignatureaZdVRwBrqKUAxK2gmHeleazJfnjFkVnv6N7Q6QmD0nlwiV+3sNkw+LBbHDKSN8+lCKrBw0yIlyDvKSV+YZj+Ag==
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

2026-09-17T11:55:03.677091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021246
observed 1aac6cd1f922b1fd323d8d647ec6c045...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:03.659103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021246/manifest.json
observed d32f5fcac236b81e13af94ca2318b730...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:03.640560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021246/publication.md
observed 2d576c5d17b3a87fbb555f45808c5dac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:55:03.622958ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021246/publication.txt
observed 1dbff80bcead1b3415f58e9ae4c2e565...
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.