OpenTechnical

OT-2026-000021822

Publication integrity record

Foam pad vacuum gripper, common isolation valve, plant vacuum fed, sustained 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-2026-000021822) never changes.

Identity and time

Publication numberOT-2026-000021822 · never reused
Internal UUID01a0ae6f-bb5a-7269-b0c4-85bd0b3c64c6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021822
StatusPUBLIC

Content hashes

Canonical text03f44525c59767f26bfb128c432b5cf694fe0e2eccf270bff19ab05f24790aee
Markdownb6efab27e90882d291969623529a724d7e8fac8aea408ca8c6eb7b633ebb7fde
PDF
Publication page4db51272aed8bb7ce8fd7b15533fed078ee6bad5e6614d9ddf23a8e93a74ca80
Manifeste748f088491ee1b132c3555ced102a90b56ad247530189e46daeda2740ad809f

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
SignatureAi+SuzQ0rg8/yZLejrp/hbS/y/NRV1aiysp3T6bWAZC/l+tbguS/jTej1gHl8oDEz7FSSCeLNAi1OQ5vGMIiBA==
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

2026-09-17T11:54:22.658839ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021822
observed 4db51272aed8bb7ce8fd7b15533fed07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:22.641545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021822/manifest.json
observed e748f088491ee1b132c3555ced102a90...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:22.622895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021822/publication.md
observed b6efab27e90882d291969623529a724d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:22.604706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021822/publication.txt
observed 03f44525c59767f26bfb128c432b5cf6...
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.