OpenTechnical

OT-2026-000090371

Publication integrity record

Foam pad vacuum gripper, three zone face, two 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-2026-000090371) never changes.

Identity and time

Publication numberOT-2026-000090371 · never reused
Internal UUID01a0ae9c-7f2d-75a8-b16c-24f441d7e819 · 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-2026-000090371
StatusPUBLIC

Content hashes

Canonical text5c3557a8fd274d8795932d8fd776a3d41fe60448aee4acd730a26636f2fefd62
Markdown1df02383b0687d0418e612d14613997a92a2a95efb6d97f1a6684162d9bb2a70
PDF
Publication page0d821aa035b52db00de14e2b105e4e8f0273ecc641263eb6b2783710ccfd6902
Manifesta14c9ff03420d055366a9fe05e1c86ab653850164b72a8c6866d1f1ee9b0f3dc

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
SignatureoYZJ6zrV3Pm2OlDvd+7aEGv4BsTFmVvdAIA8d54G4v2TaIsmAbQlOriE+gCQd8JblZpeFjoDsTypAM1rfRBWAA==
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

2026-09-17T09:44:28.442476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090371
observed 0d821aa035b52db00de14e2b105e4e8f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.425077ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090371/manifest.json
observed a14c9ff03420d055366a9fe05e1c86ab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.407609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090371/publication.md
observed 1df02383b0687d0418e612d14613997a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:28.387801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090371/publication.txt
observed 5c3557a8fd274d8795932d8fd776a3d4...
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.