OpenTechnical

OT-2026-000091699

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, pressure sensor per zone, 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-2026-000091699) never changes.

Identity and time

Publication numberOT-2026-000091699 · never reused
Internal UUID01a0ae9d-43b9-7804-8c05-9f9f4696d0fa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091699
StatusPUBLIC

Content hashes

Canonical texta7b416e34a22f9fe28d112f7ef89d5224bcecf555ffe26c8dae57e2635df8100
Markdownedeb13192fe538d18561a209089b1115dc1c15bb304706ee79277a8fb45c2394
PDF
Publication page0d9a39e5e232713413e6f8b28caf8cadd1ed561d45820850e62fba6131d1cf72
Manifest23f65b9ba4dc6dc83b94b6a23699dbbbf76eeb0732ca3cc5706be81a77e2b88b

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
SignatureywQrinOtbTxBqhddoOwQduDfiqYX822Y+2HzAm7CIeINcEI8MbXOazHu+ju0d2SCNcCYhrA1TF8jwmtEa/6iCw==
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

2026-09-17T09:42:05.227446ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091699
observed 0d9a39e5e232713413e6f8b28caf8cad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:05.208552ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091699/manifest.json
observed 23f65b9ba4dc6dc83b94b6a23699dbbb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:05.190946ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091699/publication.md
observed edeb13192fe538d18561a209089b1115...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:05.172064ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091699/publication.txt
observed a7b416e34a22f9fe28d112f7ef89d522...
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.