OpenTechnical

OT-2026-000099239

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, pump fed, manifold pressure sensor, 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-2026-000099239) never changes.

Identity and time

Publication numberOT-2026-000099239 · never reused
Internal UUID01a0aea2-8288-79ed-9104-f13eb88ce36e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:11:20.980080Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000099239
StatusPUBLIC

Content hashes

Canonical text06e8347775403229acb50da4980be36626d1b903ccb46c7bd0610d8ee56893e6
Markdown4d1e47fe90335bebd65b2ed3a203829eb289cd6a7e330cf0d52d8a9d3a6e5133
PDF
Publication page3b39af0910de3eaf4e9d1093d0e696dc48bc5ad3c45a7c6407e2cc2ad3e8908a
Manifest960c45997eed75f6f42305aa6433a7b826d713c5553cb3fe46fd1559059463fe

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
Signature9lL/0whGBKWJtgajuuCZfCFzmyELxp1727GFf/eStPSgfOZGh56mnryeOMFq3j6hhUeyrGpZY3S11JpZrLzVAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:30:40.587209ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099239
observed 3b39af0910de3eaf4e9d1093d0e696dc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:40.566521ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099239/manifest.json
observed 960c45997eed75f6f42305aa6433a7b8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:40.545583ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099239/publication.md
observed 4d1e47fe90335bebd65b2ed3a203829e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:30:40.521768ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000099239/publication.txt
observed 06e8347775403229acb50da4980be366...
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.