OpenTechnical

OT-2026-000072855

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, pump fed, supply line pressure sensor, pulsed blow-off before 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-2026-000072855) never changes.

Identity and time

Publication numberOT-2026-000072855 · never reused
Internal UUID01a0ae92-89da-742c-81b7-38fb0723c5b9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072855
StatusPUBLIC

Content hashes

Canonical textec445e4d7b7b80a1bf9877214f8cf042e1135f7825eaac62226259e3ed80e1a8
Markdownfdb9d3603dda35cb687a471cf9370cd950a647a6c725b9b48d13c1d57acfb874
PDF
Publication paged95ec36fbe9805c3f62cc0f56845f9358a39c76c739bc18d6ddc62264588d2b1
Manifest92c31683c9ee43e860844485ac426b166a5c5bfcf3a000203d2f53768342d2ae

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
Signature7Wclb+OA3eLr/rk+DOUSAmEHCQC8rV4Gm6rGHWIZjQNb//mvOlSXF7AXPKGskyTC759SM49MvLXMXraELK9ADQ==
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

2026-09-17T10:22:46.721352ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072855
observed d95ec36fbe9805c3f62cc0f56845f935...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.704282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072855/manifest.json
observed 92c31683c9ee43e860844485ac426b16...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.687150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072855/publication.md
observed fdb9d3603dda35cb687a471cf9370cd9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:46.669955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072855/publication.txt
observed ec445e4d7b7b80a1bf9877214f8cf042...
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.