OpenTechnical

OT-2026-000041393

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, sustained blow-off after 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-2026-000041393) never changes.

Identity and time

Publication numberOT-2026-000041393 · never reused
Internal UUID01a0ae79-b145-7412-99dd-48b5d4ba3bae · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:45.980839Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041393
StatusPUBLIC

Content hashes

Canonical text63d676c71da1fe10101823e7f2688e6f327eaa1e93ace96d02b1a2edfb1c0086
Markdown5c2050168ff420465f3914c99ab0215eb5913d807d066de5c83b914907fd0030
PDF
Publication page40a910703fe281774d4711a41713909c9212929d9ce07f462e022776d22b4918
Manifestdeee95ddaa6b3a7da0bcabd0e4d99fabf1c37745f0524624e68c717e974fddc4

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
SignatureR47KurwuVV4uoROCdkal5bSEVfJ3o3LkK/7cl71fZfd1b8S2rn7hk17tvbdE6Do5TIXIa4TiNVq3x/DoZdASCw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:17:24.191397ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041393
observed 40a910703fe281774d4711a41713909c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:24.172608ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041393/manifest.json
observed deee95ddaa6b3a7da0bcabd0e4d99fab...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:24.154857ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041393/publication.md
observed 5c2050168ff420465f3914c99ab0215e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:17:24.137776ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041393/publication.txt
observed 63d676c71da1fe10101823e7f2688e6f...
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.