OpenTechnical

OT-2026-000003240

Publication integrity record

Crane level indicator device

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-2026-000003240) never changes.

Identity and time

Publication numberOT-2026-000003240 · never reused
Internal UUID01a0a6a3-176f-767f-b227-c6e63114d881 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:55:01.360093Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003240
StatusPUBLIC

Content hashes

Canonical text7dfedade939c91fa1caf40e0d3bc37c91b1a292db296f77447281023a4d14c4a
Markdown0c71a25854f5b8910be7597ed3a705334cb273ecf94e6e3e40670fa8a38fa5e5
PDF
Publication pagee494b0a7f4f7b7cf78e07931f764ae18b89b381981bc95a452534da36e435a97
Manifest7849ea04c8f03005e8086ed13454aa728663e175a93b243c2c39acc8f84c6809

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
Signature0Dg/n4leZkv7IEU2XDWwGi9uLeNUZEUDSbrxh960v8ZzF85lOa2s3Lc9KTEPKFJyA3GDwqXhQ5e7ssx/Em3GBw==
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

2026-09-15T20:00:06.992717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003240
observed e494b0a7f4f7b7cf78e07931f764ae18...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:06.960447ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003240/manifest.json
observed 7849ea04c8f03005e8086ed13454aa72...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:06.947943ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003240/publication.txt
observed 7dfedade939c91fa1caf40e0d3bc37c9...
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