OpenTechnical

OT-2026-000008993

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, pulsed blow-off after 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-2026-000008993) never changes.

Identity and time

Publication numberOT-2026-000008993 · never reused
Internal UUID01a0ae6b-31b8-7f14-8dc8-9ed4d6d4372e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:55.823363Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000008993
StatusPUBLIC

Content hashes

Canonical text5a561bee72ae56f37a7eb3d7204aeca9242f4533e0ac483389d4181e42d44193
Markdowne463d129345a8fb138df8e2c47c03d47e88906a6ff4b8500609e4795896bc812
PDF
Publication pagec60613ec90d511a67ac5a52194c44db05ab6041584506f658915b9a2c86dfe21
Manifest4352a3f50d17ca559c75320ac7c7d6ffc40ba72db0995884104df89449977f35

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
Signatures0bsIplBCUIcZ2ZcmkV5NmBE348ZcJd0kMFN3fta2Zd0nC4QDK8Q28W8cXTg98jk5SPUUeYYt4TT3ZXVmfi5Cg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:27:08Z
batch OT-TS-2026-W38-017 · RFC 3161 token · inclusion proof
root 20fdfaa98ae3657e4211fd7783095876...

Independent retrieval

2026-09-17T12:17:37.377430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008993
observed c60613ec90d511a67ac5a52194c44db0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:37.354956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008993/manifest.json
observed 4352a3f50d17ca559c75320ac7c7d6ff...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:37.334456ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008993/publication.md
observed e463d129345a8fb138df8e2c47c03d47...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:17:37.314493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000008993/publication.txt
observed 5a561bee72ae56f37a7eb3d7204aeca9...
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.