OpenTechnical

OT-2026-000002706

Publication integrity record

Systems and methods for pre-plating structural members

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-2026-000002706) never changes.

Identity and time

Publication numberOT-2026-000002706 · never reused
Internal UUID01a0a67e-43f5-78d2-b556-88794c22fa6a · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:14:47.925657Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002706
StatusPUBLIC

Content hashes

Canonical textcfd76bbc18cf9237da9fd9eef669a9e8aff0cf637515ec93dd730f3d42afa91e
Markdownb08c269499d0f9c02f2a0cbf955e16b0a81a301487c18c1fc8e9c30a2e073992
PDF
Publication page9d8ecb59f84fed236d7ee29e876d4d4b7804816673421b38f2c22ad6f10776a3
Manifestc70d61c98587ce7ba8cad85bff6408d7f322d76d62b4cc1adf66ba9f032c9d19

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
SignatureqdpO/D97PSECKCLE4kV8qam/nWHxqUHMTDo7iBujDXr9rumMJMuqqpILJmh5Tvtt7w9uzll7NkGfK3jK4KZTAw==
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

2026-09-15T19:30:14.325543ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002706
observed 9d8ecb59f84fed236d7ee29e876d4d4b...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:14.170035ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002706/manifest.json
observed c70d61c98587ce7ba8cad85bff6408d7...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:14.154495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002706/publication.txt
observed cfd76bbc18cf9237da9fd9eef669a9e8...
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