OpenTechnical

OT-2026-000090310

Publication integrity record

Two cup vacuum gripper, two zone face, plant vacuum fed, pressure sensor per zone, sustained 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-2026-000090310) never changes.

Identity and time

Publication numberOT-2026-000090310 · never reused
Internal UUID01a0ae9c-4290-75ae-8bd2-f4d7fe417dbb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090310
StatusPUBLIC

Content hashes

Canonical text1b94d3fe35a47018e9eece6c77fa0de73dec5c032d41f6397a3e72263e9951d6
Markdowne08618b505cc638c4ddbbecd4a81c7420aa8169f78eef8eff5396f9f287cef48
PDF
Publication page78b5fe01d8c3814b0051263217b19e26f9f040d5a2ce6366ac6a1fab237d22ae
Manifestfe219a3b26d8e1e73315d6b1d29ba37ebba99fb363519a7c6c9ec36c6640c21c

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
SignatureNIzutbcaQL6HwW32QPFOGRh5ResfPfkaItXYT9JsKzbZlieXT2G+wZNaRy6B/O5HDFb27iUUgobcd0rLG/cQBg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:46:23.894331ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090310
observed 78b5fe01d8c3814b0051263217b19e26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.874456ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090310/manifest.json
observed fe219a3b26d8e1e73315d6b1d29ba37e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.856367ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090310/publication.md
observed e08618b505cc638c4ddbbecd4a81c742...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.840021ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090310/publication.txt
observed 1b94d3fe35a47018e9eece6c77fa0de7...
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.