OpenTechnical

OT-2026-000019425

Publication integrity record

Single cup vacuum gripper, common isolation valve, single stage ejector, 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-2026-000019425) never changes.

Identity and time

Publication numberOT-2026-000019425 · never reused
Internal UUID01a0ae6e-f393-77e5-9bc2-e041f807a205 · 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-2026-000019425
StatusPUBLIC

Content hashes

Canonical texta1673d79d4156acbd516ed8b5ab64ec4cecce7346a6a9f3b0bbde00118657bc4
Markdown1199600856af252f2162f13748c81a93a8281c0c8ccdae7cee9e6a7beaab5199
PDF
Publication page6a20c7033a5a16bfda96c67b66ee9674915af40c4de987c1a2ae77aba439fbe1
Manifest67cfe841b1cfc90a6b388e1282dae11473019f343074ac414d0f1763b65f6cdd

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
SignaturesZOHp7QHA0miOJ3JlZtPIk/pZdpXslw69m5C8SQOzQL4GKXfzRpBVaa6RWyPl5R2nHH0rFNfcqjJRyptI9PRDg==
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

2026-09-17T11:58:49.111859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019425
observed 6a20c7033a5a16bfda96c67b66ee9674...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:49.092831ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019425/manifest.json
observed 67cfe841b1cfc90a6b388e1282dae114...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:49.073816ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019425/publication.md
observed 1199600856af252f2162f13748c81a93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:49.056391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019425/publication.txt
observed a1673d79d4156acbd516ed8b5ab64ec4...
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.