OpenTechnical

OT-2026-000073390

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, manifold pressure sensor, 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-2026-000073390) never changes.

Identity and time

Publication numberOT-2026-000073390 · never reused
Internal UUID01a0ae92-efb8-7421-b202-1c9ddd563029 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:20.363042Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073390
StatusPUBLIC

Content hashes

Canonical text0b5cc14d265fff3921e5fbd3667d422eb231c3800a7b686400b7089852560972
Markdown52731ef2d57cfae1263ef06bc612c440eaae935cb5009844a1efb09d956d1a2d
PDF
Publication page82066b978bd5689da18db688f66ff7e38eed9491dace8832ec87fae5150084b9
Manifestd391af38f977f0dfdfb66086f6c0f950ebe46a71da338a3310a69b3782c30d1f

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
Signature7gOTXY9qTNcG42j9/vzbfE+rFJ0yXx30x+gHUeaiKrBNXoDzUlrgYePSt/2ieMUB4SFl1r72eK3bVAmSlwSBBA==
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

2026-09-17T10:21:25.955149ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073390
observed 82066b978bd5689da18db688f66ff7e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:25.935529ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073390/manifest.json
observed d391af38f977f0dfdfb66086f6c0f950...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:25.914202ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073390/publication.md
observed 52731ef2d57cfae1263ef06bc612c440...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:21:25.893741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073390/publication.txt
observed 0b5cc14d265fff3921e5fbd3667d422e...
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.