OpenTechnical

OT-2026-000004612

Publication integrity record

Bellows cup vacuum gripper, four zone face, plant vacuum fed, contact triggered

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-2026-000004612) never changes.

Identity and time

Publication numberOT-2026-000004612 · never reused
Internal UUID01a0a91d-b28d-7d27-83c3-6deb49db7751 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:28:10.895498Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004612
StatusPUBLIC

Content hashes

Canonical texta5959a8d56c1c369e6c03d90de0c4f4b2de714e499f66b5dd324661355fcd574
Markdownb1fb7fa26d6d3fa9bb569001539c5c6fff46c1dbb0879970e4171f92064a9e6e
PDF
Publication paged487def186acc6e9b4392321be8f8675091bf84e3d18d1855f7ee3b66baf6bf9
Manifestc1489a7c5c415fea04724fcada7797a8087968c77db206772342859764da6855

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
SignatureR2ozQRYHD9IkfrRDZ//4C45X6mRQ5nz/v5FxQObfOKCjwIw4oS2OLXjhRlP8ang2yYMIE3k4RHkueJL7Jjd/Cg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:47:02Z
batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof
root e1b42dfa4cd0fb1e3e472afd2db961c2...

Independent retrieval

2026-09-16T07:30:09.209631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004612
observed d487def186acc6e9b4392321be8f8675...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:09.194765ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004612/manifest.json
observed c1489a7c5c415fea04724fcada7797a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:09.182269ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004612/publication.md
observed b1fb7fa26d6d3fa9bb569001539c5c6f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:09.168835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004612/publication.txt
observed a5959a8d56c1c369e6c03d90de0c4f4b...
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.