OpenTechnical

OT-2026-000018452

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line 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-2026-000018452) never changes.

Identity and time

Publication numberOT-2026-000018452 · never reused
Internal UUID01a0ae6e-b48a-7b37-b968-d85b86bcce86 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:45.971508Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000018452
StatusPUBLIC

Content hashes

Canonical text653304d47d458d7641ce7e688d2ba88cd0fd8b52f31d12e953de6beb11c6f287
Markdownf18afda2510362660510528ef3a8fbcb5b25641e7e49530a7684cdea54d9220b
PDF
Publication pagef7d342d121ffc14978a0ed536292c5e96cb1d4ced4bba1dcf974a84e90fdf40f
Manifestc5b99ed0399db457ea3c97f586e1848c50316ecfa4ee9e2c9116fc920cd016da

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
Signature98EisnJwoRAeSZg4iRcLofSKjyeWxqdyOPxVaZWpTI960w2NEdJEbm9GXkNNG646JEvhHEOQ+AQq693gjHFECQ==
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

2026-09-17T12:01:12.622235ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018452
observed f7d342d121ffc14978a0ed536292c5e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:12.604628ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018452/manifest.json
observed c5b99ed0399db457ea3c97f586e1848c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:12.584333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018452/publication.md
observed f18afda2510362660510528ef3a8fbcb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:01:12.565381ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000018452/publication.txt
observed 653304d47d458d7641ce7e688d2ba88c...
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.