OpenTechnical

OT-2026-000087904

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, two stage ejector, supply line pressure sensor, 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-2026-000087904) never changes.

Identity and time

Publication numberOT-2026-000087904 · never reused
Internal UUID01a0ae9b-1aa5-7abd-a3f0-1da6f860914c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087904
StatusPUBLIC

Content hashes

Canonical text2856d1275a82ad450e184eaf6657e74486a1984c772a25d6edf9ba0799ad4b1c
Markdownfad8f0d3e286cf7a9e27795270776bf10232edf70383b19dcdd2d0898c807f04
PDF
Publication page6ab74deec37e4e23fe747c5e30f1a523f6a045d9b1716fc1d41bdd94d16b34e4
Manifestb70d9b61ea131ddeb8cc4a00024799fd98016456b54889c48aeff8c3adf42965

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
SignatureqE4KLaa9zTcjWSfkPbbLZ9l03QpdXtBwOKuK/GlrYKJ7m2DgJLnir3XpxtMsthGYDLtkZ9vwmhX0x3YdvNtuDQ==
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

2026-09-17T09:49:11.139111ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087904
observed 6ab74deec37e4e23fe747c5e30f1a523...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:11.122465ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087904/manifest.json
observed b70d9b61ea131ddeb8cc4a00024799fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:11.103949ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087904/publication.md
observed fad8f0d3e286cf7a9e27795270776bf1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:11.085102ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087904/publication.txt
observed 2856d1275a82ad450e184eaf6657e744...
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.