OpenTechnical

OT-2026-000022739

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, 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-2026-000022739) never changes.

Identity and time

Publication numberOT-2026-000022739 · never reused
Internal UUID01a0ae70-46ea-70b9-8b46-aec952e3d060 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022739
StatusPUBLIC

Content hashes

Canonical text3f25b44dbb200637da92b586f24bd1fde607d3541718e39cce822c1b796c46fa
Markdown7d3a705fab3809dc628adf08a2d78285a4e2d3069766112bffc28d038a3c7ecc
PDF
Publication pageda7714fe593cd104a69c8ba93d159d6da79ee84653e09d9f347856a6c0339b57
Manifest4579cda618365d22fefbf125ab0a002d8c2bd3dc1295fda0865530432ee38646

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
SignaturevI0B8h7+ENmF73zANfxypTasuCdKdIkPp7okmV1b0eRwmXiYxpDJHJksJewtFksw6wkFtIVc6leDWpBO3W1JDQ==
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

2026-09-17T11:52:14.715885ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022739
observed da7714fe593cd104a69c8ba93d159d6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:14.697999ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022739/manifest.json
observed 4579cda618365d22fefbf125ab0a002d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:14.681688ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022739/publication.md
observed 7d3a705fab3809dc628adf08a2d78285...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:14.664061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022739/publication.txt
observed 3f25b44dbb200637da92b586f24bd1fd...
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.