OpenTechnical

OT-2026-000091589

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, pump fed, pressure sensor per zone, sustained blow-off before set-down

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-2026-000091589) never changes.

Identity and time

Publication numberOT-2026-000091589 · never reused
Internal UUID01a0ae9c-f16e-776e-9c2d-0ab2d5134abd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091589
StatusPUBLIC

Content hashes

Canonical text6c416a74f8fdeec94273955b5c9cf5e4c85a8b9999675b8a47cca1e60118fa4e
Markdown81343a79289075df7bc3026cff99f83da0e74086dc3b1b9846c45026d165702e
PDF
Publication pagec461927352b31009ab288356aa9a1632306ee00db92370ba682f8607cef73a0e
Manifest3ceb6db7439c32f4e0b8162a5f1054fa228a49528d14dcd63a01cc4a6fedb018

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
SignaturevrtCne//qinJbKyXHodj2HXgWRtQsZ4wpGwKplN4oSZUzcZWTloeEyR2AX6jUOhsPyQk0cDS4rnvZZyTatIwAg==
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

2026-09-17T09:43:51.796213ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091589
observed c461927352b31009ab288356aa9a1632...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.780700ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091589/manifest.json
observed 3ceb6db7439c32f4e0b8162a5f1054fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.764586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091589/publication.md
observed 81343a79289075df7bc3026cff99f83d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:51.749413ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091589/publication.txt
observed 6c416a74f8fdeec94273955b5c9cf5e4...
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.