OpenTechnical

OT-2026-000006452

Publication integrity record

Bellows cup vacuum gripper, three zone face, plant vacuum fed

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-2026-000006452) never changes.

Identity and time

Publication numberOT-2026-000006452 · never reused
Internal UUID01a0a95b-bb84-753d-915d-d3da9ba0f8df · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:35:56.423153Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006452
StatusPUBLIC

Content hashes

Canonical text49a2496a4c1da5698376037d1a3617e1f00b63bf1df879daf8721ddfa413b786
Markdownd9a3edc6e5c2547f303a654a41ff4269c3647f85c0877c8fc92c5d6a8fe219ba
PDF
Publication page206326a75d72baf4c2cafaa1eda2bfe8ddb4316fa5a1012b0be2333c08dc6e27
Manifest236ff55109e6d033a845610df07bf4217933668d2839150fc3f102df0bd83330

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
Signature9by+68fFXBH6mdKo2uRh6xf1Bt0nDZENsWb5RKovUIrY7BuSoM0BQuG8nsHQOECasKuS/wPd5xh5iz0B0DK7CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:40:15.943917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006452
observed 206326a75d72baf4c2cafaa1eda2bfe8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:15.932445ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006452/manifest.json
observed 236ff55109e6d033a845610df07bf421...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:15.919274ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006452/publication.md
observed d9a3edc6e5c2547f303a654a41ff4269...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:15.903493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006452/publication.txt
observed 49a2496a4c1da5698376037d1a3617e1...
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.