OpenTechnical

OT-2026-000042093

Publication integrity record

Four cup vacuum gripper, four outlet manifold, 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-2026-000042093) never changes.

Identity and time

Publication numberOT-2026-000042093 · never reused
Internal UUID01a0ae7a-5d71-7820-b242-091b414aaa14 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042093
StatusPUBLIC

Content hashes

Canonical textd8ded6c54bd7453c5a69f35140d17b5ffc4f95fbfb62981a01bc6d9cc69174d7
Markdowna94f3df0f8da18b840b85287beca207eee670393933a262796e070746b2bcddb
PDF
Publication paged3a4a202a4b0da099eb8d5889bb4067f57e41a4b71ddc8c7c9f5b823e3691ce9
Manifest141f28b58d88c8d67376e0a83f3f60fc7fdbb209f9f47f69f6d35cb78e68c34f

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
Signaturey0EqtjIRxpJKNObxJaS6D32k98O5XQg3DyFg2rxSQWk14HWDSlp7LwQVDBVlMyqc1B18Rusy5NouvgaYVPhrDQ==
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

2026-09-17T11:15:37.451194ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042093
observed d3a4a202a4b0da099eb8d5889bb4067f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:37.433668ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042093/manifest.json
observed 141f28b58d88c8d67376e0a83f3f60fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:37.416809ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042093/publication.md
observed a94f3df0f8da18b840b85287beca207e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:37.399562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042093/publication.txt
observed d8ded6c54bd7453c5a69f35140d17b5f...
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.