OpenTechnical

OT-2026-000027820

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, sustained blow-off 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-2026-000027820) never changes.

Identity and time

Publication numberOT-2026-000027820 · never reused
Internal UUID01a0ae72-a4a5-77a9-9fb5-cdfc57267850 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000027820
StatusPUBLIC

Content hashes

Canonical textbacd7f570725b4bf760532d871d324ca860438e04b84d444c03253c57d2e747c
Markdownc52540f4fd2e25f04d5e56dd97c454e9dca3a13c997c5fca54a1a307cafe9eb3
PDF
Publication page9113c619146bb12d77654a8eb838a19b279913e633081eab36ee61d7270746f4
Manifestd9e7e139a4f92353563be420d2eafd0215895a72429bf9b4941770bb6bd0b689

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
SignaturexS+z9Qu92UEIKk0UETql+UU4mhn4RTZwCGoochOJOHlOtUzZOaCy9PBCymmzxhAum+cxdHNy5XQGa97I3MuZDQ==
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

2026-09-17T11:41:52.417404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027820
observed 9113c619146bb12d77654a8eb838a19b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:52.398714ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027820/manifest.json
observed d9e7e139a4f92353563be420d2eafd02...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:52.381835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027820/publication.md
observed c52540f4fd2e25f04d5e56dd97c454e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:52.361914ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000027820/publication.txt
observed bacd7f570725b4bf760532d871d324ca...
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.