OpenTechnical

OT-2026-000013746

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, common isolation valve, pump 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-2026-000013746) never changes.

Identity and time

Publication numberOT-2026-000013746 · never reused
Internal UUID01a0ae6d-8de9-76bf-b330-b5adc82422c6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:30.489074Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000013746
StatusPUBLIC

Content hashes

Canonical textf827eb5252fae61b1e5e4660fde4ebee794d226c8dad3d4b050c4eb73eb8985e
Markdownf203851016efc21fff05246eec14ebef302bed83be7adbfbc47ca82a29e8b8a6
PDF
Publication page07fea0963351e7f33b3d2f974de8c1fb3202fbb88c51665cc672e7b9cb26025a
Manifest840d71da52ec8d74422c9a3f2544c6e304db0f663cb1d2dd3db49d7b8d92d835

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
Signaturem/bQ8ZItDeRJi4rciGrT0xot5em/FUSdScEZz17Hr56p/YC4Yk3YOgMkNSnDOoACe4h5+9IyXedWsiN8fVgtDQ==
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

2026-09-17T12:08:48.838402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013746
observed 07fea0963351e7f33b3d2f974de8c1fb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:48.813160ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013746/manifest.json
observed 840d71da52ec8d74422c9a3f2544c6e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:48.791540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013746/publication.md
observed f203851016efc21fff05246eec14ebef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:08:48.766690ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000013746/publication.txt
observed f827eb5252fae61b1e5e4660fde4ebee...
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.