OpenTechnical

OT-2026-000042725

Publication integrity record

Six cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, sustained 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-2026-000042725) never changes.

Identity and time

Publication numberOT-2026-000042725 · never reused
Internal UUID01a0ae7a-c0cf-77cd-9c80-3f567b141d3e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042725
StatusPUBLIC

Content hashes

Canonical text261d2eaa6454a8b8b054f322ecd551db8ecafc8bf041ef7d924f8c807635db3f
Markdown978e193720d4b5da8c0fac258bc93bdbae557ae144ce6a8b9bd041c3ba8053d5
PDF
Publication pagecec812305ffdcfffae9cca07b15d4a43132738f38367fe6ff6a004a8df1ab6d7
Manifestf75d1cfcd679de247a2bf2551cce44a92151dd940f67bcde7e0bf20ed277f599

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
SignatureSXb9Go2L1GZ/apwwEyViMw11NEakEKWAxQut137zLRG/eqrPu7c6h62ZFwutHlH2+K8Jck7KJTwx5LV8jy39Dg==
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

2026-09-17T11:15:09.930600ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042725
observed cec812305ffdcfffae9cca07b15d4a43...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:09.913359ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042725/manifest.json
observed f75d1cfcd679de247a2bf2551cce44a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:09.894037ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042725/publication.md
observed 978e193720d4b5da8c0fac258bc93bdb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:09.876168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042725/publication.txt
observed 261d2eaa6454a8b8b054f322ecd551db...
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.