OpenTechnical

OT-2026-000003185

Publication integrity record

Gauge with mechanical indicator and reconfigurable gauge display

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-2026-000003185) never changes.

Identity and time

Publication numberOT-2026-000003185 · never reused
Internal UUID01a0a69a-9b1f-7d11-84bb-761282d4c5ce · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:45:45.247392Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003185
StatusPUBLIC

Content hashes

Canonical textd69fb1b4a8d0fd9dbdaa73a052d6770d3cce174b4da89e5faf67cec90759fd13
Markdown74cb5df4953e01dc2fdbbe383b47f182133bfe3f9cb2e440e1ac8ef1149a40db
PDF
Publication page38073e76d92a6b52cc0a8f7b39d0c22d75117d7184fb563bc6ceec29f4a5c615
Manifest638f9a70b44fee9bc1dfe3977ca46d11993b8d3036544395a54b23d7df937114

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
Signature5fP94/XGFDxCLsB4BKrwaVNUmsE69wCrrmwqZwbkT6PfwrOvDmvM+pvb24fcFmz3W2MIKx1JnKA/ms92it3sDQ==
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

2026-09-26T00:41:10.539041ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003185
observed 38073e76d92a6b52cc0a8f7b39d0c22d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-26T00:41:10.491658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003185/manifest.json
observed 638f9a70b44fee9bc1dfe3977ca46d11...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-26T00:41:10.441687ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003185/publication.md
observed 74cb5df4953e01dc2fdbbe383b47f182...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-26T00:41:10.304308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003185/publication.txt
observed d69fb1b4a8d0fd9dbdaa73a052d6770d...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T21:11:41.620781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003185
observed 38073e76d92a6b52cc0a8f7b39d0c22d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-15T21:11:41.592835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003185/manifest.json
observed 638f9a70b44fee9bc1dfe3977ca46d11...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-15T21:11:41.494373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003185/publication.txt
observed d69fb1b4a8d0fd9dbdaa73a052d6770d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-15T19:50:04.870800ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003185
observed 38073e76d92a6b52cc0a8f7b39d0c22d...
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