OpenTechnical

OT-2026-000090337

Publication integrity record

Three bellows cup vacuum gripper, three zone face, single 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-2026-000090337) never changes.

Identity and time

Publication numberOT-2026-000090337 · never reused
Internal UUID01a0ae9c-7f2c-7c98-85f2-c4794e466b6a · 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-2026-000090337
StatusPUBLIC

Content hashes

Canonical text824b3719059249bc8c01f1ce76583e3520343e152a8b09c97560f236b34769ee
Markdownc15ab55a63642055c35bee46e4147d2f7641aad2bfbe4f0973cea2571456c8da
PDF
Publication page7f4f45e79d7497c2320aee99ca8f610bd97344985670e901088facb07917f0d7
Manifestcab4eacca020970869751ea343b4aa30e2fc427bb453abb7061e4b02f4904b25

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
SignatureOBibvDkUj23+ZBn33y3D9m6RNZls6MkSupWICJAWsDFMsk4r4i6iG8Dlmwu7DE3Ahb8QeePbvtcVR6OB2N6KDw==
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

2026-09-17T09:44:25.586228ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090337
observed 7f4f45e79d7497c2320aee99ca8f610b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:25.567858ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090337/manifest.json
observed cab4eacca020970869751ea343b4aa30...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:25.551228ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090337/publication.md
observed c15ab55a63642055c35bee46e4147d2f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:25.533357ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090337/publication.txt
observed 824b3719059249bc8c01f1ce76583e35...
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.