OpenTechnical

OT-2026-000051281

Publication integrity record

Single cup vacuum gripper, common isolation valve, three stage ejector, vented 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-2026-000051281) never changes.

Identity and time

Publication numberOT-2026-000051281 · never reused
Internal UUID01a0ae83-2740-7630-a6c7-fc0ea3d9e053 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:37:05.998905Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000051281
StatusPUBLIC

Content hashes

Canonical text0939261698cca0391a4300d68c439688ac6f850815978ae825dc8fa1d59b9fbc
Markdown123f6ecd6e1ca846eac1ac2318c3f0691abcca41a884a11da792a0febe6a5c56
PDF
Publication page9b1e53e6cbdc1c24d75dfdbd569726a4438cb5e967f186cdaca8ae8e0330f3ad
Manifest497f800676d60c50bbdc5699ec15e5f7f2d16ddfdd3dbe762c99646e4160c706

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
SignaturekBgAmZOGZt40koe4i9o7jRS9K4y2SMZ5p+yd4OsXQ8gkGP4bbAd1U5JtAWmTA/9HP1je/MODYccK4EUWdvkjDA==
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

2026-09-17T10:59:05.218436ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051281
observed 9b1e53e6cbdc1c24d75dfdbd569726a4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:05.197914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051281/manifest.json
observed 497f800676d60c50bbdc5699ec15e5f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:05.176485ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051281/publication.md
observed 123f6ecd6e1ca846eac1ac2318c3f069...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:59:05.155622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000051281/publication.txt
observed 0939261698cca0391a4300d68c439688...
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.