OpenTechnical

OT-2026-000007891

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, vented 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-2026-000007891) never changes.

Identity and time

Publication numberOT-2026-000007891 · never reused
Internal UUID01a0ae6a-908a-7112-a4c0-bc01ee2e25bd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:10:14.564317Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007891
StatusPUBLIC

Content hashes

Canonical text7e07d8fde1a53409ade5c9d636acfbd95c44d66ed9117cd124a84cab10aa6533
Markdown38e2cb930d2a9f071971856484dd1f0daf21e4eeadba176a589e368ad027828e
PDF
Publication page4473763a00e4f5076cf7e9c30a06c374d67a7f4b1fa772b8fd1202c081322994
Manifest71234141c01547c5ee8ed906a6fd50e533ae83fb7e30bdca0533b7817d802fff

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
SignatureFVURbBRgJ+1aRHQy20nB+U+1NW1/DtUUQ5coYqjrfWWmMcNRSu34FP4RIm0KWOHScsyS9OcIZj1YNxmu8SrHBg==
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

2026-09-17T12:20:21.189512ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007891
observed 4473763a00e4f5076cf7e9c30a06c374...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:21.168540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007891/manifest.json
observed 71234141c01547c5ee8ed906a6fd50e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:21.152490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007891/publication.md
observed 38e2cb930d2a9f071971856484dd1f0d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:20:21.129716ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007891/publication.txt
observed 7e07d8fde1a53409ade5c9d636acfbd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:59.854870ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007891
observed 4473763a00e4f5076cf7e9c30a06c374...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:59.837374ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007891/manifest.json
observed 71234141c01547c5ee8ed906a6fd50e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:59.816845ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007891/publication.md
observed 38e2cb930d2a9f071971856484dd1f0d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:19:59.799043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007891/publication.txt
observed 7e07d8fde1a53409ade5c9d636acfbd9...
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.