OpenTechnical

OT-2026-000033189

Publication integrity record

Single cup vacuum gripper, common isolation valve, two stage ejector, 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-2026-000033189) never changes.

Identity and time

Publication numberOT-2026-000033189 · never reused
Internal UUID01a0ae75-4844-7a95-9fdc-2172eea18c95 · 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-2026-000033189
StatusPUBLIC

Content hashes

Canonical textc893ecce5deea31302b5763629cbdf46d7766c9b750482f991dfdf76aa00c657
Markdown3d26dec94b0f23b9dd7b303f2baaee5fcf0d613e69e272f8627a2f5eb655d315
PDF
Publication page7a49fe4d94001cfe84ec542226c9df822c7c9d6a8c77c502dff051e49d02663a
Manifest8f0b55ddb14d312f9e0804b1edca8caae4bb24972bcb188f0b4dcd6e9655555e

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
SignatureD8A2c5Tj4KNK3hMmROb09GBYtpNpCrjJLNqtjs3IbTNZp78VFqrTKxqsjD1+CmgCD3sfGY3uQiqlNP2saw6yDw==
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

2026-09-17T11:32:53.096164ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033189
observed 7a49fe4d94001cfe84ec542226c9df82...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:53.078862ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033189/manifest.json
observed 8f0b55ddb14d312f9e0804b1edca8caa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:53.061836ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033189/publication.md
observed 3d26dec94b0f23b9dd7b303f2baaee5f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:32:53.043545ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000033189/publication.txt
observed c893ecce5deea31302b5763629cbdf46...
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.