OpenTechnical

OT-2026-000042281

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, two stage ejector, sustained 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-2026-000042281) never changes.

Identity and time

Publication numberOT-2026-000042281 · never reused
Internal UUID01a0ae7a-5d73-78d1-be3d-87a33ec60401 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042281
StatusPUBLIC

Content hashes

Canonical texteae51936162636101bb676d74455095f697b43f9061c81905b1fc424823544ff
Markdown8c5244b844d096eacc63e1e4d093079f32504908aebea49d003533befdaa48e0
PDF
Publication page2daa548455464dedab12a1fef817af66921c742d88d001a831133c36b40098be
Manifestf80338cbe0ea5e06abde5f12d87576631526e1e9a3322ed8d315cdb6d5741d03

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
Signaturey0gcmlaxeoqUVc5JyyOqjnKUqfTRprG3U76QhWvj2qwlQPA2Mi/PHMdLHf5uqBIV7TLrFNuNo4BoAxXATiznAg==
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

2026-09-17T11:15:58.415635ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042281
observed 2daa548455464dedab12a1fef817af66...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:58.396900ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042281/manifest.json
observed f80338cbe0ea5e06abde5f12d8757663...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:58.377560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042281/publication.md
observed 8c5244b844d096eacc63e1e4d093079f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:58.357818ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042281/publication.txt
observed eae51936162636101bb676d74455095f...
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.