OpenTechnical

OT-2026-000072378

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, plant vacuum fed, 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-2026-000072378) never changes.

Identity and time

Publication numberOT-2026-000072378 · never reused
Internal UUID01a0ae92-47c3-70bc-9113-7d379fc496b4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072378
StatusPUBLIC

Content hashes

Canonical textd3e04f08601eb381439e8cf914e5fcbe7c9f881545ec02ff6d8769421209246d
Markdown4b259d51a8bd1c59c30c11f10ff3c91900bed29d30ee3e82f128e5dd375f3497
PDF
Publication page050734743fc38d8f1ce9ea63325b2fc95d55297129e9a01c9ebc764f1b25e301
Manifestcbabd2029958fe9d457298f7940de1020e013f9f094181ea155b1f301780b2b1

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
SignatureRh3DiD6PhBDy1GY3vs1OZ58TW6IdoCe5/zgxCjBwbuW8TAqEYbWkhTb9KeYPvrmhmz/QA8CLVsPQc6anZNFwAA==
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

2026-09-17T10:23:36.980727ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072378
observed 050734743fc38d8f1ce9ea63325b2fc9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:36.964499ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072378/manifest.json
observed cbabd2029958fe9d457298f7940de102...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:36.947388ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072378/publication.md
observed 4b259d51a8bd1c59c30c11f10ff3c919...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:36.929148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072378/publication.txt
observed d3e04f08601eb381439e8cf914e5fcbe...
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.