OpenTechnical

OT-2026-000003233

Publication integrity record

Method and apparatus for measuring dimensions of objects on a conveyor

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-2026-000003233) never changes.

Identity and time

Publication numberOT-2026-000003233 · never reused
Internal UUID01a0a6a1-99b6-7209-a8fc-42a4a4a6c118 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:53:23.638688Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003233
StatusPUBLIC

Content hashes

Canonical text7f32ba116dc87e25a8c38666de5bd4c5f86e4d3134c0d266b0f6c3f0348322f9
Markdown1fb1f355db06c12127a39a0fe0c136e53855fe7fadbe0cfe71ebc783885c719f
PDF
Publication page1cb98702e9ca5c40497cf2f4bba7be2276a23bb412d4572f8dc82166cee68a2d
Manifestce345bbfc973d3b2b76218867c8252b29a2a27e0873d1ffd10bf7e11eee961e5

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
SignaturevbyWbXUanafgsaMhiN2GJUREP/5a2T+A893bNPa7TYgC0xuVSjCoGInbm0OM3s3zX4RYCiwD8vXlNNjxiUjnDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T20:07:03Z
batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof
root d42f3e627490c26ffd144bf37543fecf...

Independent retrieval

2026-09-15T20:00:07.944774ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003233
observed 1cb98702e9ca5c40497cf2f4bba7be22...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:07.913239ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003233/manifest.json
observed ce345bbfc973d3b2b76218867c8252b2...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:07.899843ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003233/publication.txt
observed 7f32ba116dc87e25a8c38666de5bd4c5...
fetched by instance-3.rotem.ai from 127.0.0.1, 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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent