OpenTechnical

OT-2026-000023555

Publication integrity record

Foam pad vacuum gripper, two zone face, three 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-2026-000023555) never changes.

Identity and time

Publication numberOT-2026-000023555 · never reused
Internal UUID01a0ae70-7269-7d89-8781-3b214cef6ad6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:40.056870Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000023555
StatusPUBLIC

Content hashes

Canonical text90df3e3c416d1214270ef391a4c04522055b928bc465e16e5cf7ab53153ac78f
Markdown68524ce0c265b8539e2cfa63fa56c5f400ee0c2371b8cb840577a530936db05d
PDF
Publication page5cccd4c049651d139efcd6dee300c6b2e01be47cb6170eff0a933fd4e956d88e
Manifest776363759637921317927e0e11b28a511cf28daaaf9e200ea226008e899a928a

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
SignatureSC99Bg/g9cxwPU0NBmZzyXDbLFo9KnWKDVkPQPcGUXgAWQMYoAf2eKCI/iCplmlLdjnTCvt3ZTo569So95tHAQ==
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

2026-09-17T11:51:54.145140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023555
observed 5cccd4c049651d139efcd6dee300c6b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:54.123889ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023555/manifest.json
observed 776363759637921317927e0e11b28a51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:54.105946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023555/publication.md
observed 68524ce0c265b8539e2cfa63fa56c5f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:51:54.088648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000023555/publication.txt
observed 90df3e3c416d1214270ef391a4c04522...
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.