OpenTechnical

OT-2026-000081902

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, supply line pressure sensor, vented after set-down

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-2026-000081902) never changes.

Identity and time

Publication numberOT-2026-000081902 · never reused
Internal UUID01a0ae97-0f76-78bd-8832-1f194cb313ac · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081902
StatusPUBLIC

Content hashes

Canonical text109a058e07d9133429c8517c213a9fc32b24bc5c78106a9655e987ea6b85c8c2
Markdown6e3cd67a3fe232053914ed7c0ea8135f4fda6bd2884cca45b118585e625ad0ca
PDF
Publication pageb9ee91ede648043b860b143cf3dd341be54c23763e58ce10cfcccf78ea2318cd
Manifeste8cd7490fe704cebe8221fe2d59c9162b0db1824c215fae607e35cbce03ac1f8

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
SignatureiU9aTDd93xIPg7kpe1o2tF7W3hC1esw/t4BvwBYvDz4IamhP3FjO0Mzl+AUK5kVNZyNxVxbcjTp2sTELhkfbCQ==
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

2026-09-17T10:01:01.643116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081902
observed b9ee91ede648043b860b143cf3dd341b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.625005ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081902/manifest.json
observed e8cd7490fe704cebe8221fe2d59c9162...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.608215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081902/publication.md
observed 6e3cd67a3fe232053914ed7c0ea8135f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:01.589867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081902/publication.txt
observed 109a058e07d9133429c8517c213a9fc3...
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.