OpenTechnical

OT-2026-000090304

Publication integrity record

Foam pad vacuum gripper, two zone face, plant vacuum fed, 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-2026-000090304) never changes.

Identity and time

Publication numberOT-2026-000090304 · never reused
Internal UUID01a0ae9c-4290-77af-8258-86b46571fc12 · 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-2026-000090304
StatusPUBLIC

Content hashes

Canonical text4568ad8cab1a0d41bf0ba200964491851197df72433e53d30cfbdf2b33cead84
Markdowna3e165d68c2b7dfee0edb2109196f4505a403a7609006df1e601c7cb025118e6
PDF
Publication pagef6a4f57c8995d53432c0ff33a58ad9ae87f0faec7861fb7b8cc9cd19266a6d88
Manifesta9fe01768aa893ad5266c9393e5e70bebfa9452c6837cb5e6cc2d2651b4dc1e9

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
Signature3dn/hNtOKD08F1/ONtQotUAGc4Nr8SACmRkRUgzhXE/yxxDyPiYgc2nLphg3y5ZoU6o1N9oE28hmkl7XnBj8AQ==
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

2026-09-17T09:46:23.551791ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090304
observed f6a4f57c8995d53432c0ff33a58ad9ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.533276ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090304/manifest.json
observed a9fe01768aa893ad5266c9393e5e70be...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.514927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090304/publication.md
observed a3e165d68c2b7dfee0edb2109196f450...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:23.496490ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090304/publication.txt
observed 4568ad8cab1a0d41bf0ba20096449185...
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.