OpenTechnical

OT-2026-000031535

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, 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-2026-000031535) never changes.

Identity and time

Publication numberOT-2026-000031535 · never reused
Internal UUID01a0ae74-87ae-7da6-be31-83eed6173d8b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031535
StatusPUBLIC

Content hashes

Canonical textde6bc70b31a2c8f44ddd512765d479d5b3b3446ca75c9f35834d0792cc30471d
Markdownc9837c87fe10e1c618c9e0198d41f81a697fc70ce9a9523dc0942b0264881de8
PDF
Publication pagec0d1457bbe71f4e574240823309b4936f834285515d79dd35e8b93fe8db1ca5d
Manifest2226cd5a8e268d14a62383a2d09ae02482988bcf6e9b01258b1cde65d89c84cf

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
SignaturehtVeWmA+CJb6E+9M5gtk574VYfV+/B/xFfOjNEs53/lfUvhEvh064siirfxOhyemKadYTK+vwHn8gnU+AsI2Cw==
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

2026-09-17T11:36:22.525747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031535
observed c0d1457bbe71f4e574240823309b4936...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:22.507330ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031535/manifest.json
observed 2226cd5a8e268d14a62383a2d09ae024...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:22.486320ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031535/publication.md
observed c9837c87fe10e1c618c9e0198d41f81a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:22.468711ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031535/publication.txt
observed de6bc70b31a2c8f44ddd512765d479d5...
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.