OpenTechnical

OT-2026-000043493

Publication integrity record

Two cup vacuum gripper, two outlet manifold, common isolation valve, pump 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-2026-000043493) never changes.

Identity and time

Publication numberOT-2026-000043493 · never reused
Internal UUID01a0ae7b-92ce-73ae-9603-d3540b2edbb1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043493
StatusPUBLIC

Content hashes

Canonical textcba75a41a346209fe5652e7ea3cc7832c6198945650e5f99f3dc93cded74d66a
Markdowne17f2ad4ee3309f2eae62aacd7964d57bb2890482fb3a7d3d5b17f7f0a5ff80e
PDF
Publication pageb5092b55af3911588ad57a53a0a6a930bd741d2a1eb1f93c6fb76ccabdda51df
Manifest47f170d84b6c6a8e1638d5d357c8fe266d518f068e3ee060cd4e89eded5ca22a

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
SignatureSIPeBQwj90VwuxYYaBjegaGCtL8hWoZfKL7xWWnwPXXgBTkjyBXKmQXr0kmqGnwEb0EJu77xQHeEo7KsSJ+6BQ==
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

2026-09-17T11:12:51.438185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043493
observed b5092b55af3911588ad57a53a0a6a930...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:51.419884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043493/manifest.json
observed 47f170d84b6c6a8e1638d5d357c8fe26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:51.400388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043493/publication.md
observed e17f2ad4ee3309f2eae62aacd7964d57...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:51.381997ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043493/publication.txt
observed cba75a41a346209fe5652e7ea3cc7832...
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.