OpenTechnical

OT-2026-000019474

Publication integrity record

Foam pad vacuum gripper, plant vacuum fed, supply line 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-2026-000019474) never changes.

Identity and time

Publication numberOT-2026-000019474 · never reused
Internal UUID01a0ae6e-f393-7fd5-82bf-e1c8f5fed671 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019474
StatusPUBLIC

Content hashes

Canonical text2a77030321d86ca1720f3d30dfef4b54dcba3a95a905ffe7287f7eb2c10e8dfa
Markdownd0706ccb6b803463a284c5d6dc903f380f299e352ee0980666d43c0972957fcf
PDF
Publication page981261396013dc098da47ec88a682475914a1a3f99f717b0b5585f2b7a724412
Manifestfe188b86d86edb2b6b51ba8fc09b3080b0f0bfbe5acd2bffe887b5372ccffd8d

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
SignatureUrw9/TThZaxNcmxwQV37W+JWMXMIWTtiHZ1v3dTzXcqcKqCuzR0Cy4RabmT2SZrfEmfppBuF5SHz6M7+EtI5Ag==
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

2026-09-17T11:58:53.520691ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019474
observed 981261396013dc098da47ec88a682475...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:53.495345ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019474/manifest.json
observed fe188b86d86edb2b6b51ba8fc09b3080...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:53.469807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019474/publication.md
observed d0706ccb6b803463a284c5d6dc903f38...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:53.443427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019474/publication.txt
observed 2a77030321d86ca1720f3d30dfef4b54...
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.