OpenTechnical

OT-2026-000084402

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, pump fed, sustained blow-off before 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-2026-000084402) never changes.

Identity and time

Publication numberOT-2026-000084402 · never reused
Internal UUID01a0ae98-5b62-72f3-9d39-8848721dfbc3 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:15.619216Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084402
StatusPUBLIC

Content hashes

Canonical text903903792772cbf79d150df2a629f878c05f62ed45124f7d30104db92d9a0f69
Markdown612518566d9b0dfb1b359a22c24c4324dab4b7e2e98fcfd87c6fc5e453143965
PDF
Publication page19c218a2fe7ba2f584da95f1ccd3aca31567e277e1bfdb23402afaa8c9e9465e
Manifestb3233ff3da9cadd6a548f4ad1fdfcdcd8980fcd4c452913f42f814c53d9d81ed

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
SignatureulgtvOunQdAVbx4SujkfhN84eNn+tBJM7QexFxZv5Dkp6nRg8oJWeqJIH99ThwrQ8RWabhc1NzUcIHjT6/QiDw==
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

2026-09-17T09:56:20.872740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084402
observed 19c218a2fe7ba2f584da95f1ccd3aca3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:20.855522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084402/manifest.json
observed b3233ff3da9cadd6a548f4ad1fdfcdcd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:20.835826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084402/publication.md
observed 612518566d9b0dfb1b359a22c24c4324...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:20.817281ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084402/publication.txt
observed 903903792772cbf79d150df2a629f878...
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.