OpenTechnical

OT-2026-000090712

Publication integrity record

Three cup vacuum gripper, three zone face, per zone isolation, three stage ejector, 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-2026-000090712) never changes.

Identity and time

Publication numberOT-2026-000090712 · never reused
Internal UUID01a0ae9c-7f31-7d40-b4ee-a9b9f65b25d1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090712
StatusPUBLIC

Content hashes

Canonical textc8f1e972b309709be1359e86a78aa50a3b285cc46ae8df13ae0276e3479c2fb0
Markdown919b6bc3b571f6702124b409118b0a3e83055a9b6798dc7e0f0a2c87f3aaa391
PDF
Publication page7baa758071ebdf399ed76df06fe4243ac04ee5cf1785544d31d0273f588c955e
Manifest20a07e2af5c165eff6bf6159edf01e52ebe251d861fe0b416cbdb4297982a94e

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
Signaturep+nq1C5wB1OCWSHsfVYZ4WP3V6dyxdOKpzD/51G6ue/kKQVuOj/U/TCN+CpOBIJGdvpNdW/arp1GZ64IzLPZAg==
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

2026-09-17T09:44:55.079520ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090712
observed 7baa758071ebdf399ed76df06fe4243a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:55.060496ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090712/manifest.json
observed 20a07e2af5c165eff6bf6159edf01e52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:55.043554ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090712/publication.md
observed 919b6bc3b571f6702124b409118b0a3e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:55.023674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090712/publication.txt
observed c8f1e972b309709be1359e86a78aa50a...
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.