OpenTechnical

OT-2026-000083231

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two stage ejector, sustained 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-2026-000083231) never changes.

Identity and time

Publication numberOT-2026-000083231 · never reused
Internal UUID01a0ae97-c963-7c4b-8395-658974fb39b8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083231
StatusPUBLIC

Content hashes

Canonical text9141a76ff1e567b8e50451b9ddad4a16d5be52159248c256c897c56ec5449f75
Markdown75158afd4294417ba8e077f0502d4ca3414aae6e266a3d70ea6d534a128a6b0c
PDF
Publication pagee3e21f8721c05f662ae0ed948ccae4cba9b85522cd19f9d0d149dbcc60138aab
Manifest80c8169d002cca383c413f10e2b8ee0c0f7ca7c1721b8b9bcb1656ff78fdc880

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
SignaturefQo4o+Z+wuFh20iNG9TgIUCWcOI7XUP20mHt39f8psQAKp/ZVnRa87j+7zWgCBpB0zIiFC2q94wAVNatyWUHDA==
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

2026-09-17T09:01:11.087606ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083231
observed e3e21f8721c05f662ae0ed948ccae4cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:11.070108ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083231/manifest.json
observed 80c8169d002cca383c413f10e2b8ee0c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:10.928866ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083231/publication.md
observed 75158afd4294417ba8e077f0502d4ca3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:10.910312ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083231/publication.txt
observed 9141a76ff1e567b8e50451b9ddad4a16...
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.