OpenTechnical

OT-2026-000083415

Publication integrity record

Three cup vacuum gripper, three zone face, plant vacuum fed, sustained blow-off before 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-2026-000083415) never changes.

Identity and time

Publication numberOT-2026-000083415 · never reused
Internal UUID01a0ae97-c964-7158-a015-dc39fffed060 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083415
StatusPUBLIC

Content hashes

Canonical text45333a3c1f64046c2fbde53cdd8ef9f97df66774be7fcb3d2731900f08bb7256
Markdown16bcb250dc1487fec07abb5a53d6d7872c016f7b598c97e01dab9aff0e7c4170
PDF
Publication page2e54dd9cb873137cf865356cc8ab0d6d1c999c1797d1ef512d210958ec9aeb06
Manifest3b1d33d7eecd047f786c4bf530e24dc218180fd7bde21a5670f8bd69bc5b2798

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
SignatureyCYNoZu0rAcoDr/buoTy8s+fCJqqwBemqxCsQK5FND581yQEKLt9s/mJjEKJl4E7DHYg+z+MMlB+mQTJlI67Dw==
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

2026-09-17T09:57:49.703476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083415
observed 2e54dd9cb873137cf865356cc8ab0d6d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:49.686466ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083415/manifest.json
observed 3b1d33d7eecd047f786c4bf530e24dc2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:49.669365ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083415/publication.md
observed 16bcb250dc1487fec07abb5a53d6d787...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:49.652450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083415/publication.txt
observed 45333a3c1f64046c2fbde53cdd8ef9f9...
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.