OpenTechnical

OT-2026-000047449

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000047449) never changes.

Identity and time

Publication numberOT-2026-000047449 · never reused
Internal UUID01a0ae7f-3e58-72bd-bb4d-843444d07230 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:32:49.774666Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000047449
StatusPUBLIC

Content hashes

Canonical text7fbf4f70c6d0a2b69bf3e16d3f8fbdccacf95ab5560868365a77bdc47866b8dc
Markdown602152f8c6af94c30101729f8640ee2524bbf01fc07d811272a7efc3d38da75e
PDF
Publication paged8c1dd5e0b4b7165fd5437c071e75b5d7ede6bc7a9cc331a133dc0b7391fcc99
Manifest2bafa8ba392a3f5967e8fe55914f1714e3aefe490e7b4ebef8d73dd363552a06

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
SignatureicfB4Ae3+edkWAlygWfU+neD1vy+43KqqdTTrqXfZb02xlXXVR89a1h5pdB25jFMNs4lTb/dAvMHDun7gebhBg==
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

2026-09-17T11:06:28.710978ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047449
observed d8c1dd5e0b4b7165fd5437c071e75b5d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:28.692796ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047449/manifest.json
observed 2bafa8ba392a3f5967e8fe55914f1714...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:28.673843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047449/publication.md
observed 602152f8c6af94c30101729f8640ee25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:28.656010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000047449/publication.txt
observed 7fbf4f70c6d0a2b69bf3e16d3f8fbdcc...
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.