OpenTechnical

OT-2026-000002545

Publication integrity record

A base for supporting a portable crane and a method for removing a main bearing of a wind turbine

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-2026-000002545) never changes.

Identity and time

Publication numberOT-2026-000002545 · never reused
Internal UUID01a0a67d-5176-7e39-9a9f-296a9f5cd000 · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:13:45.847010Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002545
StatusPUBLIC

Content hashes

Canonical text47d755fe85c6927ed828006cc547b15583ecef920e74d107f833772b9fff3bda
Markdownf6cff5f2e105c8a31522c525ee4566598a2924a23d7b965d10842ae5d716f24c
PDF
Publication page56f3884f66a1b7b25703df87f642ba56130dd24c04e22ad2cca5c3d043d26903
Manifestf65ef4e7b9a9de8cc37eae38ce88d800431d40cb7036306ddd12acf84d4eba4e

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
Signaturexbl5QVsQuHPSr89HHLVpu1o4G5vYqpUYGKoQhAzvWxDHNMtawmMcH0E79DYJr0dnvhkcXayJ+sAXFipN5wKXBg==
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

2026-09-15T19:30:34.856483ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002545
observed 56f3884f66a1b7b25703df87f642ba56...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:34.824621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002545/manifest.json
observed f65ef4e7b9a9de8cc37eae38ce88d800...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:30:34.687534ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002545/publication.txt
observed 47d755fe85c6927ed828006cc547b155...
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