OpenTechnical

OT-2026-000072815

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, plant vacuum fed, supply line pressure sensor, pulsed 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-2026-000072815) never changes.

Identity and time

Publication numberOT-2026-000072815 · never reused
Internal UUID01a0ae92-89da-7632-b663-c4efb6aeb013 · 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-2026-000072815
StatusPUBLIC

Content hashes

Canonical text359e3a41dc7cf76a70b75fae02afc37300fa0cb03a7a7e4b7fdb20b693c3a703
Markdown543fd8fe1decd12ccf3b31ce5b77075639a26a880cea4dfffd80c8b09986d7c8
PDF
Publication page786a70ce358bc150c8402385f6b3bdd3c4b2e9a99a5259bc5eed907db94f8530
Manifest32912f0ad2a90e405052cf33a2c93365d35b6017283eeb1e9ecc96b5b95c6ba0

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
Signature25rf5O69bCsNwbPRYRG2eB9pT9Ut7SMnlIV5y84wVd1hS+7tEcH6JUpe5cvO4nNrsgNeIpBJEI9tPkHUkxEKAg==
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

2026-09-17T10:22:43.962591ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072815
observed 786a70ce358bc150c8402385f6b3bdd3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:43.944382ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072815/manifest.json
observed 32912f0ad2a90e405052cf33a2c93365...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:43.927121ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072815/publication.md
observed 543fd8fe1decd12ccf3b31ce5b770756...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:43.908767ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072815/publication.txt
observed 359e3a41dc7cf76a70b75fae02afc373...
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.