OpenTechnical

OT-2026-000090238

Publication integrity record

Two bellows cup vacuum gripper, two zone face, single 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-2026-000090238) never changes.

Identity and time

Publication numberOT-2026-000090238 · never reused
Internal UUID01a0ae9c-428f-785c-ab64-afbc943e2ca8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090238
StatusPUBLIC

Content hashes

Canonical text2ae8aba57736a063a8021d96be4186fcf1f8ff02b414cf40fb7e55154f69b6d5
Markdown2fdd9ae60df791f2a03e99a14705cb220d026fb0542eebad5ca4377f21f08912
PDF
Publication page54fdc9bbd39733b6b877d2a831c0d3dce315c44c84d5783de549114412727253
Manifesta62918179519b1999de818a75f00621ff3064d5bc82f14145a4962eedfad2b8a

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
SignatureO2qmARTWrmpv6hOtMwqoXJmixZ6x9mSTT9x44UZIbK3WLOGvQ5i76AWekyHae86LpIRQHbso1USiWVzhl7c4DA==
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

2026-09-17T09:45:40.429392ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090238
observed 54fdc9bbd39733b6b877d2a831c0d3dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:40.410174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090238/manifest.json
observed a62918179519b1999de818a75f00621f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:40.379157ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090238/publication.md
observed 2fdd9ae60df791f2a03e99a14705cb22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:40.352709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090238/publication.txt
observed 2ae8aba57736a063a8021d96be4186fc...
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.