OpenTechnical

OT-2026-000001931

Publication integrity record

Lifting bridge, particularly for motor vehicles

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-2026-000001931) never changes.

Identity and time

Publication numberOT-2026-000001931 · never reused
Internal UUID01a0a679-8034-7515-9bc1-683407608d83 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:09:35.668313Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001931
StatusPUBLIC

Content hashes

Canonical text363748a72f8512f2feba04435c7cbd9b0e085e9732279fd02dccfd55a812dcd3
Markdownb1a70cceac63c23d8c6183e6e1742ad5ea92fe5cce9a96c248fc2d93cfa65db5
PDF
Publication pagecce7fc05eee4956f3d9938f5dc83fac441e7796dac6764d9a6c4e4884dfd370b
Manifestd9ddd8eb2e91741da4a6d8611b8b0d24b8a69236c89390ea43b79aa9d405d86c

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
Signature/mDbJsQjs2mxp7h8auS1i5aCJDu6nGFcsffTBIGKAmv1YCKg654rWLFoHl+GuU4/wQ7SqV+Ge3Buk+vnfKxxAw==
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

2026-09-16T12:42:48.371404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001931
observed cce7fc05eee4956f3d9938f5dc83fac4...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T12:42:48.151463ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001931/manifest.json
observed d9ddd8eb2e91741da4a6d8611b8b0d24...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T12:42:47.889027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001931/publication.md
observed b1a70cceac63c23d8c6183e6e1742ad5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T12:42:47.591215ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001931/publication.txt
observed 363748a72f8512f2feba04435c7cbd9b...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-16T04:23:14.483209ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001931
observed cce7fc05eee4956f3d9938f5dc83fac4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:14.468581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001931/manifest.json
observed d9ddd8eb2e91741da4a6d8611b8b0d24...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:14.454318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001931/publication.md
observed b1a70cceac63c23d8c6183e6e1742ad5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T04:23:14.439404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001931/publication.txt
observed 363748a72f8512f2feba04435c7cbd9b...
fetched by instance-3.rotem.ai from 34.69.0.72, 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