OpenTechnical

OT-2026-000040250

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, pump fed, manifold pressure sensor, pulsed blow-off after 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-2026-000040250) never changes.

Identity and time

Publication numberOT-2026-000040250 · never reused
Internal UUID01a0ae79-26ff-7f20-a4be-c198a33dcd1c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:26:10.588850Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000040250
StatusPUBLIC

Content hashes

Canonical text1ac6b7f73f8f1762f55986e9347e43b10722bc614fce8d85f198d50282e53b40
Markdown344683654be6d460bc443fd861877180d16bffc891ce85c12e34076e44e02d83
PDF
Publication page3028f61c81098b5b97cd1c29e5234d101dfc14706eaeb27649371b41fc592687
Manifest0886389d41d9f8bd5b5cb164d82cd3f308fd7ecc88199c2602b7bed883b6424f

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
SignaturePZUcC0YRxFDPPxyxmpFt71CdyTkYAH37UzJpfBx6yZwx7gCv/BxAlwXxCJjg0yeShMX8VojsDX77dL0uDPdaBA==
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

2026-09-17T11:19:08.742697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040250
observed 3028f61c81098b5b97cd1c29e5234d10...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:19:08.725043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040250/manifest.json
observed 0886389d41d9f8bd5b5cb164d82cd3f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:19:08.709172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040250/publication.md
observed 344683654be6d460bc443fd861877180...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:19:08.690907ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000040250/publication.txt
observed 1ac6b7f73f8f1762f55986e9347e43b1...
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.