OpenTechnical

OT-2026-000001681

Publication integrity record

Wind turbine blade lifting device based on offshore wind turbine unit

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-2026-000001681) never changes.

Identity and time

Publication numberOT-2026-000001681 · never reused
Internal UUID01a0a677-b01f-73e3-bce2-4b3beb33925e · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:07:36.864039Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001681
StatusPUBLIC

Content hashes

Canonical text37e9a4afc3b532f20f29866b7c17ceb005b74e42fb30ec17ba114aaa29419dda
Markdown29076c0f3039a5e511ff847b8bc974cddfe2be971e8035b824b50dd1e79fe326
PDF
Publication page9f5eda5c093d392b45ca2c1c51c2ff15bce2df4c231fa537d3655a4f9b4e5eb0
Manifest590634f2050ca1d277403246aafa90483174d9ca45f1ce6a7b6e3c93041baf85

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
SignatureQw3Xj2quGGUaSuMERHM4fvc2bCvNy9e6cnXLFJ6gs5R/uTswQkVjqHCS3EC689iiGJxsIQz4G6uDc/67W5uCAA==
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

2026-09-15T20:00:14.487853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001681
observed 9f5eda5c093d392b45ca2c1c51c2ff15...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:14.448101ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001681/manifest.json
observed 590634f2050ca1d277403246aafa9048...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:14.435077ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001681/publication.txt
observed 37e9a4afc3b532f20f29866b7c17ceb0...
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