OpenTechnical

OT-2026-000006424

Publication integrity record

Vacuum cup gripper, four zone face, plant vacuum fed, contact triggered, polyurethane cups, flat form

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-2026-000006424) never changes.

Identity and time

Publication numberOT-2026-000006424 · never reused
Internal UUID01a0a95a-becc-7383-b857-f94b9ecbebf7 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:34:51.727137Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006424
StatusPUBLIC

Content hashes

Canonical text63962c4c03a24048ee4223bebcf80b7ce9750ae1620a2fcbda0fbf424f2a9af7
Markdownb966b42d1143aff504479c915ab1afd43916bebc282d856e9f7a290990eb30d7
PDF
Publication page168347195b0635c453d04b4e00c64d12c0c302b40fd1f8fa081ba9dce0e919ba
Manifeste6f6b2f1999b62a2be593bca23a9781e42607e5158ca4d74bed37372f0595f5e

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
SignatureOHOxWeJf6/D6X6zJg6beUdWCrDARy1ePFHoQI7xXGYfG06ZjnNIjSZy9m0KwZUqsf24l5UNgI7/TR3HxyN9hAA==
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

2026-09-16T08:40:19.198557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006424
observed 168347195b0635c453d04b4e00c64d12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:19.184622ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006424/manifest.json
observed e6f6b2f1999b62a2be593bca23a9781e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:19.170931ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006424/publication.md
observed b966b42d1143aff504479c915ab1afd4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:40:19.157360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006424/publication.txt
observed 63962c4c03a24048ee4223bebcf80b7c...
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.