OpenTechnical

OT-2026-000003061

Publication integrity record

Apparatus for loading a cage welding machine and cage welding machine

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-2026-000003061) never changes.

Identity and time

Publication numberOT-2026-000003061 · never reused
Internal UUID01a0a680-5acf-7311-ac2a-02a7dce595ed · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:17:04.847328Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003061
StatusPUBLIC

Content hashes

Canonical textec76e38363d0ce0dcd04f18cc444be9efff79b4fae7c7eb0b67536f6e9cd0489
Markdown89173ab4ed8086cdcb428e98963db99b95000714ea3fdd4bf7abd67d8cbee35a
PDF
Publication page5891e4ae426408ec4f1598445f0a5aa09d5fe52171fcaadd040bf4da41e331d5
Manifestceff81ef4e716a6d067cd5903d1738f1a8b441d78fc97bf4018580880755e56e

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
Signature0B2whh6ECQ33FtHI3rszV5zAAJDu9pr3G9kRgqTDt2SQzpOwvzoRnosYK/aEY2IcIQL3gpa/L9jdq5v9duj6Aw==
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

2026-09-15T19:20:03.888264ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003061
observed 5891e4ae426408ec4f1598445f0a5aa0...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:03.731481ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003061/manifest.json
observed ceff81ef4e716a6d067cd5903d1738f1...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:03.718746ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003061/publication.txt
observed ec76e38363d0ce0dcd04f18cc444be9e...
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