OpenTechnical

OT-2026-000091705

Publication integrity record

Foam pad vacuum gripper, four zone face, four outlet manifold, 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-2026-000091705) never changes.

Identity and time

Publication numberOT-2026-000091705 · never reused
Internal UUID01a0ae9d-43b9-78f4-9b56-e2915de625ca · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091705
StatusPUBLIC

Content hashes

Canonical text3762170c6f97934e8b0198507d9d8c64ebe02af7dc774a18e6f4de94a51c146d
Markdown6c67d7d84c387b6e78470ea20a061f76f99882822e1e16850b1c545bd4f7106e
PDF
Publication pageef19975033b8256bdcb27fb2aa56d3ca2988f27270fac607710fea9f3678c8b2
Manifest34990b1ba0341f460632a29375d7efd77645220072496eefd26b62f88ac0b1cb

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
SignatureBY+RsFd5k31sM4sc7vJFeblLa/oHS1lM2UwBI7cCY2tx437kpMZnhLGHyIxxu0syH4mcH/kx92v2asFV2rm1Aw==
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

2026-09-17T09:42:05.695061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091705
observed ef19975033b8256bdcb27fb2aa56d3ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:05.678678ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091705/manifest.json
observed 34990b1ba0341f460632a29375d7efd7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:05.659394ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091705/publication.md
observed 6c67d7d84c387b6e78470ea20a061f76...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:05.638574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091705/publication.txt
observed 3762170c6f97934e8b0198507d9d8c64...
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.