OpenTechnical

OT-2026-000002403

Publication integrity record

Robot teaching device and work teaching method

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-2026-000002403) never changes.

Identity and time

Publication numberOT-2026-000002403 · never reused
Internal UUID01a0a67c-665a-7992-90ef-e51011c3aa48 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:12:45.659308Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002403
StatusPUBLIC

Content hashes

Canonical text94cc2d6613714ad2c613a92b685daab751f91530b1519cf567637b99950d1daf
Markdownf0098a844674d78d934483af8270921eaa5b7319955b2d1aacc1b34b84139b76
PDF
Publication page89759da43bcd7ecdf0bafd907a180c8a6fa44f2e2c2236504e5b0d7b433989df
Manifest310d1a77c0bc78aec0a495be80edf00696e619d790a577b5bdc4302b5309a74f

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
Signature+JxGa9FH7sI7hwbQc0+5Ak+iLwQf+dlZG7W3NfqJAHM5TyX2aEsSBhoFdwBaa+TzbFm3G0bRHq/PWuZc3LVrAg==
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

2026-09-15T19:40:19.448584ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002403
observed 89759da43bcd7ecdf0bafd907a180c8a...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:19.298827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002403/manifest.json
observed 310d1a77c0bc78aec0a495be80edf006...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:19.285337ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002403/publication.txt
observed 94cc2d6613714ad2c613a92b685daab7...
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