OpenTechnical

OT-2026-000069806

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, 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-2026-000069806) never changes.

Identity and time

Publication numberOT-2026-000069806 · never reused
Internal UUID01a0ae91-185f-7b00-ab11-110840269716 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:19.726120Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069806
StatusPUBLIC

Content hashes

Canonical textc83868275e30594ef53cad5f0cce909fba4745bef35b316b21b8a8377eb57ddd
Markdowne5ae8e96353a12ea6556822914e330e9a273adbc3c9839aebe85c9190b6a6bff
PDF
Publication page46f341d28d433b5254b7528cc02f8b44762067e3692293634584c6656eefd5fa
Manifest07519cca8aa87344db83edbb26c7446aba558f9205c03b5897e5dada426c4ac8

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
Signaturex11MMXtN+mgWzVt+0vx3ZQcm1UIvCbySLA6w7o0zKIuOM++xjS+YtHtaV+KF9Gn7uknQy3iFZ8Nt51ZsVLixBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:26:30.567090ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069806
observed 46f341d28d433b5254b7528cc02f8b44...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:30.548303ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069806/manifest.json
observed 07519cca8aa87344db83edbb26c7446a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:30.527706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069806/publication.md
observed e5ae8e96353a12ea6556822914e330e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:30.506443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069806/publication.txt
observed c83868275e30594ef53cad5f0cce909f...
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.