OpenTechnical

OT-2026-000090790

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, two stage ejector, 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-2026-000090790) never changes.

Identity and time

Publication numberOT-2026-000090790 · never reused
Internal UUID01a0ae9c-7f31-7984-ae3a-719704817b74 · 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-2026-000090790
StatusPUBLIC

Content hashes

Canonical text442af7a64fe6c337c81de9949739f3d78d256f633c31c631120bfdf9262cb054
Markdownc171ba6690ba93165a42c70a8182fd9be6a72b9c02b465e8fa9c77d2f4516cab
PDF
Publication page749546172599792f64390c964ef280af8585f853b1ce68116aad9ec3277df974
Manifestbab4c5ec8b30b266dd03ea529c27cf9eece707b5baf48a9053f879b5b83b5647

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
SignatureRH0san/69pNUV/kE7FgWGo3vIS+8+1ZdqKX8FVdKdCa8tc5oyRFqTxC0BlYklH4Sxg7xHF+UlJXh0CNDPLOODA==
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

2026-09-17T09:44:59.721975ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090790
observed 749546172599792f64390c964ef280af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:59.704938ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090790/manifest.json
observed bab4c5ec8b30b266dd03ea529c27cf9e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:59.686432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090790/publication.md
observed c171ba6690ba93165a42c70a8182fd9b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:59.669841ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090790/publication.txt
observed 442af7a64fe6c337c81de9949739f3d7...
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.