OpenTechnical

OT-2026-000000447

Publication integrity record

Kingpin for a fifth-wheel coupling, fifth-wheel coupling with kingpin, and utility vehicle therewith

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-2026-000000447) never changes.

Identity and time

Publication numberOT-2026-000000447 · never reused
Internal UUID01a0a673-5e13-7b0a-b55e-75191408fb1a · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:02:53.715845Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000000447
StatusPUBLIC

Content hashes

Canonical text9549ade332597294aeba580b44b62026b508289baac59cf13e4e2135ed88a1b5
Markdown6dd41d1d469a506272631ce87bd6768d122f9a00b35678ab19ef6f0922984130
PDF
Publication pageb3bcc1ea0228dc2568c0fce6442b0030b90debfa8ac58a3d9540d3bc0985ceca
Manifesta47b594755bfaaa06bef69684a0c39b7932caa892b5f9b7c01901c29537ba825

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
SignatureFwlVSRVp/6A1BK0cuzxoAtUoNhCIJxlti4rEwCjvLn0nvnRrEXzsf+TyyhPb1HNGayeDfoPWG0TmEcsTnizRAg==
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

2026-09-29T20:41:30.674233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000447
observed b3bcc1ea0228dc2568c0fce6442b0030...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T20:41:30.626130ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000447/manifest.json
observed a47b594755bfaaa06bef69684a0c39b7...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T20:41:30.576970ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000447/publication.md
observed 6dd41d1d469a506272631ce87bd6768d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-29T20:41:30.452477ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000447/publication.txt
observed 9549ade332597294aeba580b44b62026...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:50:08.797243ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000447
observed b3bcc1ea0228dc2568c0fce6442b0030...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:08.745725ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000447/manifest.json
observed a47b594755bfaaa06bef69684a0c39b7...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:50:08.615460ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000000447/publication.txt
observed 9549ade332597294aeba580b44b62026...
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