OpenTechnical

OT-2026-000033225

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, pulsed blow-off after set-down, on a tool changer

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-2026-000033225) never changes.

Identity and time

Publication numberOT-2026-000033225 · never reused
Internal UUID01a0ae75-4844-7f78-ac3f-b80cce4342e7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:57.065765Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000033225
StatusPUBLIC

Content hashes

Canonical text0d3c49dd41e674437312ffa2c44de3347b19eb8076f55b883c0ef01891bf6860
Markdown64d6b613ce88106089e9e5876313e19b5e7222ecdb06e0c192519a5cb439bd53
PDF
Publication page98f8234633911d903f44be63ece954d96c019fbee110f440627c8423e9ec2c15
Manifest1d23a94381dad06cdbf883c5de576c8efb457df6eefa451fa9046b16d126ba0f

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
Signature1YnaknqGBEUBuY0vREOP1s/bGrQZWjXKGs5S6PoiRTGvSp19um28mYXe0gErWvUY4wwauGrDk3pVnWTfKNdMCA==
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

2026-09-17T11:32:55.789044ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033225
observed 98f8234633911d903f44be63ece954d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:55.771846ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033225/manifest.json
observed 1d23a94381dad06cdbf883c5de576c8e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:55.754927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033225/publication.md
observed 64d6b613ce88106089e9e5876313e19b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:55.737909ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033225/publication.txt
observed 0d3c49dd41e674437312ffa2c44de334...
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.