OpenTechnical

OT-2026-000002596

Publication integrity record

Controller and system for simulation of crane operation

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-2026-000002596) never changes.

Identity and time

Publication numberOT-2026-000002596 · never reused
Internal UUID01a0a67d-9ebc-7eb4-b415-1df66663a20c · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:14:05.628835Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002596
StatusPUBLIC

Content hashes

Canonical text1d9b7510f6b0e861c35369bc9d1c102b45652a9f0ecaef3a9bee94418f884706
Markdown262d6b36c8ca2912fee86b71477978b072c894aeadb540b2dbc8475e02a3b01b
PDF
Publication pagee9fd68fbbcb6f0c85960ce01e7d38af484e1dcf9f1637135a8c470c2b52f951e
Manifestc81e298111b6df233aedd0114ee0b5b9bd09898203aacbf4f7a6ffa7d81cc265

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
SignaturerONJMFcp+vf+agkT1bPjUO615evdV4foRy/a/ilE+sBoZSRR0rAhA6bk9QdwNrYdRJUheE26ZC8VPZfkDHmuCA==
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

2026-09-15T19:30:27.363040ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002596
observed e9fd68fbbcb6f0c85960ce01e7d38af4...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:27.330422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002596/manifest.json
observed c81e298111b6df233aedd0114ee0b5b9...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:27.199906ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002596/publication.txt
observed 1d9b7510f6b0e861c35369bc9d1c102b...
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