OpenTechnical

OT-2026-000067347

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed 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-2026-000067347) never changes.

Identity and time

Publication numberOT-2026-000067347 · never reused
Internal UUID01a0ae8f-6bd8-7810-b099-7e8b2099f4a6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067347
StatusPUBLIC

Content hashes

Canonical text1b426cc0f004ac4d6db9f920ea83973f0921af3d9651e8c332bb930886193c57
Markdownabe49ed6b1500e75ec3d42f348649c6b579a05ba26d60d83ad49706b795e789a
PDF
Publication page77c1bff212f5a33e1858067099d153f3f46afc317e1845cd397e52c34e48f41e
Manifestdb85823e81162c290efa00e20931a876f9b89b9e046a0c00c2624ce7642539da

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
SignatureNu2etrI20OWfJwsUdqquUeEwRnvhv5Fbl26efbLR4z6SBeYnGtEC7opXwekz+BZ89VYziPqn+DxhehjYhRxzCA==
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

2026-09-17T10:31:31.979828ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067347
observed 77c1bff212f5a33e1858067099d153f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:31.959526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067347/manifest.json
observed db85823e81162c290efa00e20931a876...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:31.940961ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067347/publication.md
observed abe49ed6b1500e75ec3d42f348649c6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:31.923575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067347/publication.txt
observed 1b426cc0f004ac4d6db9f920ea83973f...
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.