OpenTechnical

OT-2026-000074903

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, pump fed, manifold pressure sensor, pulsed 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-2026-000074903) never changes.

Identity and time

Publication numberOT-2026-000074903 · never reused
Internal UUID01a0ae93-ac2d-73f8-80cd-d1b1f62fa3f8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074903
StatusPUBLIC

Content hashes

Canonical textd7102c475716c9168d715670c72ce3a9ddd245a80c640fb9ede40f65a14b8828
Markdown745d9fbef7689f81a99d9f92fc2fc2ef149f1a066a5a24c017e5cd85aa1ea479
PDF
Publication page34ecabef0d25165924e20523c1f3ccd6969ba6cd2b2d1604ac5203b52b2610f1
Manifest70e888c452be6fd3fedeb73627b60662b714d5f278be251cc1cf619a5106b7f1

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
SignatureGXhIIK1LouYKNQci4jqz+95AiuxeAkgk0/dEh5v41MYSJtoWZQNtMW9QNWlb4D6jOKiHZf1pB4cYZ710pEO+Ag==
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

2026-09-17T10:18:37.552571ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074903
observed 34ecabef0d25165924e20523c1f3ccd6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:37.535261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074903/manifest.json
observed 70e888c452be6fd3fedeb73627b60662...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:37.516648ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074903/publication.md
observed 745d9fbef7689f81a99d9f92fc2fc2ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:37.499809ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074903/publication.txt
observed d7102c475716c9168d715670c72ce3a9...
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.