OpenTechnical

OT-2026-000074542

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented before set-down

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-2026-000074542) never changes.

Identity and time

Publication numberOT-2026-000074542 · never reused
Internal UUID01a0ae93-717b-7410-8fd9-61ab40b655a7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074542
StatusPUBLIC

Content hashes

Canonical text34ab3c17339f6689d0e3d1e9c24a20b2e355b211ba96805becd3bd46046c49c8
Markdownbc518b25d44cc184eadbe09fa4aaa06a33bfbbd55e755394581ab5af1236d531
PDF
Publication page5770c80109b6ff385139f1040de15a591b15fec6a3e29ea08659a2c54f63bfb3
Manifest74c83c5bd685da363bf7b1058e1984e7f64d8d3b72a7a67630f21b0f7c1de646

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
Signature7FGMDz5lah6Xwh/t6JrAhZZE6IjrFQhhv+xiEIZ7q5Rw/K/ZcJwNg7NvkI4m0vA8utdDd8gCp5scEIOrRzVzAg==
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

2026-09-17T10:19:31.516676ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074542
observed 5770c80109b6ff385139f1040de15a59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.499114ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074542/manifest.json
observed 74c83c5bd685da363bf7b1058e1984e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.480526ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074542/publication.md
observed bc518b25d44cc184eadbe09fa4aaa06a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:31.463539ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074542/publication.txt
observed 34ab3c17339f6689d0e3d1e9c24a20b2...
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.