OpenTechnical

OT-2026-000042552

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, pulsed blow-off after set-down

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-2026-000042552) never changes.

Identity and time

Publication numberOT-2026-000042552 · never reused
Internal UUID01a0ae7a-c0cd-73cf-8432-2d7f5ad3acd7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042552
StatusPUBLIC

Content hashes

Canonical text59357df7b8a91ffaf6d9e7107e8d2af16c2131aa5768910d4000241f04628ff4
Markdownf90c3bd87c174dd6009bbef3c700d6c7a99112cd298d858769c7bbc498ac5514
PDF
Publication pagef16eff2abf39b83350ffd14a02dd2554de73b2ed97e21e74b363248304d72236
Manifest7377e93f1eb90e60648a563dfa5354f9d8b0a81757bc796f1fb2ebd1ef128e17

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
SignaturepjxmVp9Av6Rh1QcZXSLOTSwFX6CkarSm0bpBg7HvPlTG7VgEcCumiTDoMOB0nJXhBZfkRFsbXv+i9R/ZEYdOCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:14:15.572790ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042552
observed f16eff2abf39b83350ffd14a02dd2554...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:15.552078ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042552/manifest.json
observed 7377e93f1eb90e60648a563dfa5354f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:15.531419ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042552/publication.md
observed f90c3bd87c174dd6009bbef3c700d6c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:15.511464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042552/publication.txt
observed 59357df7b8a91ffaf6d9e7107e8d2af1...
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.