OpenTechnical

OT-2026-000048551

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, pulsed blow-off before 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-2026-000048551) never changes.

Identity and time

Publication numberOT-2026-000048551 · never reused
Internal UUID01a0ae80-4de7-72d5-b27e-a12055a5580e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:59.290761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048551
StatusPUBLIC

Content hashes

Canonical texte06b66dc6d040a403caaf5bbbbb8f006a2b4df21592440c79f2207a83284add0
Markdownfaa4237b7fb4bc8c3864965a572e2ae38aafc0c8ea84beda8750a9c537e6bdbd
PDF
Publication page2f26e19465789f99346df9e5b29403f2847372f496a8ef393bd929499921295d
Manifeste8e591c0ba3dab302ca8e613f96de567804a9cf94618cbfbd53607245b1ce044

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
Signaturer+F6FkCRfVudPRr0AgONREj9p8ISdAz42aFyX7FPTse7q5d5NiuV0Qx630SwOWM9A0tRNky5Ya9jtD3+pqTsDQ==
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

2026-09-17T11:05:20.747146ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048551
observed 2f26e19465789f99346df9e5b29403f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:20.728318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048551/manifest.json
observed e8e591c0ba3dab302ca8e613f96de567...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:20.707724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048551/publication.md
observed faa4237b7fb4bc8c3864965a572e2ae3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:05:20.689151ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048551/publication.txt
observed e06b66dc6d040a403caaf5bbbbb8f006...
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.