OpenTechnical

OT-2026-000011603

Publication integrity record

Single cup vacuum gripper, common isolation valve, plant vacuum fed, vented 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-2026-000011603) never changes.

Identity and time

Publication numberOT-2026-000011603 · never reused
Internal UUID01a0ae6c-8900-7d9d-9d6c-0747b48aa827 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:12:23.703080Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011603
StatusPUBLIC

Content hashes

Canonical text624f3993418307239ff0c8296f310435ae05857f8e6de9b87fe357125a1fb8d6
Markdown1556bbca770a8e2a44f6f4209f4b1a4185183dc5720e30b0da2761edb53bebb7
PDF
Publication page007d563a7e9d8d505754f202bb3b54d26fd4dec1e8324bdeeb7d33e618289cfb
Manifest245ba95e4dd0c164feba867c8236703017ecbf4c0c2e99e0ed04fc1053906613

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
SignatureDpCca2/0A9pBtn4M9KKTWwP1qYVFNJWZoUYNsWHUl0bzcHow5r0EwTVNnPEC9hMOakqzhouQiOfdmdYTDS49Bw==
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

2026-09-17T12:13:30.548133ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011603
observed 007d563a7e9d8d505754f202bb3b54d2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:30.525413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011603/manifest.json
observed 245ba95e4dd0c164feba867c82367030...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:30.504902ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011603/publication.md
observed 1556bbca770a8e2a44f6f4209f4b1a41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:13:30.486511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011603/publication.txt
observed 624f3993418307239ff0c8296f310435...
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.