OpenTechnical

OT-2026-000087861

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, pump fed, supply line pressure sensor, 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-2026-000087861) never changes.

Identity and time

Publication numberOT-2026-000087861 · never reused
Internal UUID01a0ae9b-1aa5-7e83-ba9b-bc453f3fd227 · 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-2026-000087861
StatusPUBLIC

Content hashes

Canonical text6ce8e438b179a84030bf974774293afdde469f7aad53fce629a592cfaa2de342
Markdown5b891b9d222f563c225cbc460ab62b4a3b93fa317cb870a9d2157935ee7ca0ee
PDF
Publication page1acd901297b689eac54d74835667380d08f10ee36977697734206de444612cd6
Manifest096df7b67e97a8e555a9e6acdb6c2ef4fefa659e63ef64ea7146c32c4b9f67b1

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
Signatureypdg45uF4KtJA56O2aZnnvN42Ld/k/OTJsGuV181zQX44/OGRIyuiuhw/HWqR3CgjBavaQLVt5rqi4wYA2IBBA==
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

2026-09-17T09:49:06.816347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087861
observed 1acd901297b689eac54d74835667380d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:06.795254ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087861/manifest.json
observed 096df7b67e97a8e555a9e6acdb6c2ef4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:06.773916ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087861/publication.md
observed 5b891b9d222f563c225cbc460ab62b4a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:06.753765ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087861/publication.txt
observed 6ce8e438b179a84030bf974774293afd...
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.