OpenTechnical

OT-2026-000000826

Publication integrity record

Crane, crane characteristic change determination device, and crane characteristic change determination system

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-2026-000000826) never changes.

Identity and time

Publication numberOT-2026-000000826 · never reused
Internal UUID01a0a673-e12f-7bde-88a6-f6bbfb980986 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:03:27.280002Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000826
StatusPUBLIC

Content hashes

Canonical text432c0e316df281e9734f43f2f69ff2f9ca64767f95e4799dca17f85a9ba93e96
Markdown2fb2e2b492b04e40e6bfe6168af44d02c64abd4583d82840f9de164d792ae20b
PDF
Publication page60b2df095a3561909e955d5eef643438e8f0585b59cb58b04f67881bb4bf669c
Manifest8d345a20a45532116998831d2a41bbdd111fdee3f94f839c014bf20bd771a88e

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
SignaturepM9m6Lbns5LtwymWaJCJSaX1RvVlH2Jmc4i7Ci3KizEJPMZlEnkf8Dpary26D5VF/AZBvkG/uRaDjFvYnP7JDA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:07:03Z
batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof
root 6369baadb1a246009d149835804d20ba...

Independent retrieval

2026-09-15T20:30:30.683283ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000826
observed 60b2df095a3561909e955d5eef643438...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:30.653859ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000826/manifest.json
observed 8d345a20a45532116998831d2a41bbdd...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:30:30.639811ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000826/publication.txt
observed 432c0e316df281e9734f43f2f69ff2f9...
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