OpenTechnical

OT-2026-000002992

Publication integrity record

Rail Tensioning

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-2026-000002992) never changes.

Identity and time

Publication numberOT-2026-000002992 · never reused
Internal UUID01a0a67f-ed92-7dcd-bd21-0f06f81da76e · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:16:36.883270Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000002992
StatusPUBLIC

Content hashes

Canonical textf94509f8d2e6f8e958e4f41f2e4598d890954ad231db02c491e9cc0db883b8f6
Markdownd43a6d1c30670a7c9e9d40132b75961506a2f9b1a10475f86ed99e96010dbd84
PDF
Publication pagea5252f27767a1a08951c4f17905b4eb4dd50a91f71a418faecd96f59e2294336
Manifest4a6bb7ab6c2eed542bf6d43e98c7a1bea0ac7bdce401d2855cec60ba6376d002

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
SignaturebMVWkdPdhFKxmEw6Aq0+MTb/+E2ipzMIhmsgH3vKB1lb2BtY5YPzApEu4fAKJf6zJy4QC0XRxATF6J4IrexJAg==
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

2026-09-15T19:20:11.208421ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002992
observed a5252f27767a1a08951c4f17905b4eb4...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:11.180708ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002992/manifest.json
observed 4a6bb7ab6c2eed542bf6d43e98c7a1be...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T19:20:11.168319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000002992/publication.txt
observed f94509f8d2e6f8e958e4f41f2e4598d8...
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