OpenTechnical

OT-2026-000021949

Publication integrity record

Six cup vacuum gripper, six outlet manifold, 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-2026-000021949) never changes.

Identity and time

Publication numberOT-2026-000021949 · never reused
Internal UUID01a0ae6f-bb5b-71f3-b86a-bef65307c2d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:53.201585Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000021949
StatusPUBLIC

Content hashes

Canonical text83b9be9a5fc7c0fdca61c87ece96c70832bf3644bb7c1eaa33d6e8f4f2a79be1
Markdown482d2ba8e926f3d43c27c0463eacf9a919f660f2f212bbf577754132aa5f9a59
PDF
Publication pagecf02d0e8cf96663109798e1896525ab0c8d53611cf34846529be6288bee2cfd7
Manifest01703f90385c84de77f0c598e11352e55d19442603377da317720beaee5b36b8

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
SignatureYVo0qGIoKrhXHIcyfA1F4sl/MUG55KLa4e72Uy8owjjN9QNyMikyyTyLa6/ipiHg6YhV/E+2kqznlEPUak48BQ==
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

2026-09-17T11:54:36.928120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021949
observed cf02d0e8cf96663109798e1896525ab0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:36.911173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021949/manifest.json
observed 01703f90385c84de77f0c598e11352e5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:36.893285ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021949/publication.md
observed 482d2ba8e926f3d43c27c0463eacf9a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:54:36.876020ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000021949/publication.txt
observed 83b9be9a5fc7c0fdca61c87ece96c708...
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.