OpenTechnical

OT-2026-000001670

Publication integrity record

Vehicle Leveler with Improved Drainage

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-2026-000001670) never changes.

Identity and time

Publication numberOT-2026-000001670 · never reused
Internal UUID01a0a677-9ab6-7103-8eb2-1a8fbfd4d8f6 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:07:31.383014Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001670
StatusPUBLIC

Content hashes

Canonical text7778233acdcfd8bfa70f4bd20d8ab6c93f2bbf100462bfada5dece8af2012321
Markdown94caf05338753a763a0c7c42d71bb8d0575113e6244b0c9f4691c2f152e36117
PDF
Publication pagee6e58fac83c4204ee23a19178a58e07cb7ea4dd0bfedc4c1fea1e203c989328e
Manifest91958b532341d21f736af00041c64c0dfa1c54a684c8de91b5ecd3e38871d1f7

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
SignatureESan8qfD+lv/rNMHiv3bJJ9a4zFqwfm2SKPe62jv2ExkKmIPTn2cG62xHnORgxBZV4O2k1eOLD/b+VE4Zo1ZDA==
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

2026-09-15T20:43:46.240693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001670
observed e6e58fac83c4204ee23a19178a58e07c...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:43:45.762278ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001670/manifest.json
observed 91958b532341d21f736af00041c64c0d...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:43:45.505793ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001670/publication.txt
observed 7778233acdcfd8bfa70f4bd20d8ab6c9...
fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:15.890253ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001670
observed e6e58fac83c4204ee23a19178a58e07c...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:15.718920ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001670/manifest.json
observed 91958b532341d21f736af00041c64c0d...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:15.706647ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001670/publication.txt
observed 7778233acdcfd8bfa70f4bd20d8ab6c9...
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