OpenTechnical

OT-2026-000003140

Publication integrity record

Control device of construction machine

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-2026-000003140) never changes.

Identity and time

Publication numberOT-2026-000003140 · never reused
Internal UUID01a0a692-eef8-77a7-bfed-2eae75a95607 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:37:22.425291Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003140
StatusPUBLIC

Content hashes

Canonical texte4b0a80e92c60a0831ab267b760bb5b2b086837e52e41e041b347a3e4ec2b2d4
Markdown9d3477407c30b669531955f3c5ebf8393ee422f202aae0aaa6d7d441e118b93e
PDF
Publication page41ef4dd2fbc5376778174fe20ed522034f18becdad4bccc6224df8210e3404b0
Manifest15e7beb7dc8d8953745bfbf0e7fea55ad99589c4a935f76762e91cbf1e268301

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
SignatureST3Y0J63q7XINp+cAmD5mbpuEtwcTYmbflC1FF+W9WWc9dVFg4xlBD6TECTAZSNxFD1GI2ko2OMxev1HAMajAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-15T19:47:02Z
batch OT-TS-2026-W38-003 · RFC 3161 token · inclusion proof
root 713cd89b73be422b38f7894d4fb6a755...

Independent retrieval

2026-09-15T19:40:04.058093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003140
observed 41ef4dd2fbc5376778174fe20ed52203...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:04.021145ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003140/manifest.json
observed 15e7beb7dc8d8953745bfbf0e7fea55a...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:40:04.006927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003140/publication.txt
observed e4b0a80e92c60a0831ab267b760bb5b2...
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