OpenTechnical

OT-2026-000017374

Publication integrity record

Foam pad vacuum gripper, pump 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-2026-000017374) never changes.

Identity and time

Publication numberOT-2026-000017374 · never reused
Internal UUID01a0ae6e-76c9-76bd-b651-e78c7fca2ed6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:30.105855Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000017374
StatusPUBLIC

Content hashes

Canonical textc2a1b4e94535317e04c861d8497dbae7d9e8558dd344cbe6daf9df6b4db02305
Markdownee57030a9e79b5206b0f9d5a4b7bd5e94bb11623b3904c51a8dcdb8312862dbd
PDF
Publication pageb6e7685a25475bc718edf77b20ddfe82084628dfd3312ec379626954054c3908
Manifest3a1c3b7782c98287e478a82745107ab5e9f7b644ce252fd98ce51c1ba6ad6a88

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
SignatureZAPPJdhCY2DV7mR+h2gWDBsfPeH1yi9XCU1GD9Q4oRH0VBBmqKAIZ1ohgwPf6aiHFkCstj+/SzfcJZun8Y/wAw==
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

2026-10-10T20:41:30.359764ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017374
observed b6e7685a25475bc718edf77b20ddfe82...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T20:41:30.284085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017374/manifest.json
observed 3a1c3b7782c98287e478a82745107ab5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T20:41:30.210767ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017374/publication.md
observed ee57030a9e79b5206b0f9d5a4b7bd5e9...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-10T20:41:30.123871ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017374/publication.txt
observed c2a1b4e94535317e04c861d8497dbae7...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-17T12:02:29.630349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017374
observed b6e7685a25475bc718edf77b20ddfe82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:29.614276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017374/manifest.json
observed 3a1c3b7782c98287e478a82745107ab5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:29.595898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017374/publication.md
observed ee57030a9e79b5206b0f9d5a4b7bd5e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:02:29.578543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000017374/publication.txt
observed c2a1b4e94535317e04c861d8497dbae7...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent