OpenTechnical

OT-2026-000002499

Publication integrity record

Computer-Implemented Method for Determining and Calibrating a 3D Representation of a Robot Cell

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-2026-000002499) never changes.

Identity and time

Publication numberOT-2026-000002499 · never reused
Internal UUID01a0a67d-0d52-79ba-b296-c884d85b4f01 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:13:28.402362Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002499
StatusPUBLIC

Content hashes

Canonical textb3510bc134ae49a1f2379fbc15cabcaab81f126f58370bceab293ae3ef790ea7
Markdown2189b393ac4c9ea6fa717a234278354c20d784adba246dd233cae6501b369ea1
PDF
Publication pagec6c62c4b7092e4b4980206d26b0a06cb902718d70f6e8e99c8b4ebbb83f7798d
Manifest0a8b7a8b3c6c8efcc8ce918351d0cdbe5a634ce2133ad3f77ae3e563f95d78ba

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
SignatureATMxn4JwzEZcVy93fKfA5Eu6OAsIWEDnoJBOCC2YXCQd7JDqBZIFnmxU1b7CYVa6Yxpk3xO8tx2o/47vhFPOCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:27:02Z
batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof
root 2d7e364e718bd6a32072ec57f9edc195...

Independent retrieval

2026-09-15T19:40:08.707954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002499
observed c6c62c4b7092e4b4980206d26b0a06cb...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:08.676810ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002499/manifest.json
observed 0a8b7a8b3c6c8efcc8ce918351d0cdbe...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:08.537026ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002499/publication.txt
observed b3510bc134ae49a1f2379fbc15cabcaa...
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