OpenTechnical

OT-2026-000001686

Publication integrity record

Winch drum tension isolation system

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-2026-000001686) never changes.

Identity and time

Publication numberOT-2026-000001686 · never reused
Internal UUID01a0a677-ba2a-76b8-88a4-330dada17fbf · UUIDv7, RFC 9562
Publication timestamp2026-09-15T19:07:39.434511Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000001686
StatusPUBLIC

Content hashes

Canonical text25d24f20c10f5594ed2b179b9a7724966f3a45c8c95610d844096e0c68f4841d
Markdown4962fa052a17fe7d60f5ae48411b93643b08f0e462dfb2e402df1ad86fe15234
PDF
Publication page4ff072c217550944f3800b7f9bc651a52f1ec916b992c249588026bb84ad978c
Manifest00619c1d5df64179602e6795758ab77588c98c3c581420ecfa3f7ddffa796c8e

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
Signature0Rs0CruyYc1ZoeZBMjVs/qaVslI3/2WBFJ+dH+0TzdV3MzrZDE6TxIScBdMYWzu9Bc98lvsjrlGdwRa/awaUDw==
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

2026-10-05T08:41:30.396991ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001686
observed 4ff072c217550944f3800b7f9bc651a5...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T08:41:30.352489ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001686/manifest.json
observed 00619c1d5df64179602e6795758ab775...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T08:41:30.310535ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001686/publication.md
observed 4962fa052a17fe7d60f5ae48411b9364...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-10-05T08:41:30.193042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001686/publication.txt
observed 25d24f20c10f5594ed2b179b9a772496...
fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139
2026-09-15T20:00:13.911570ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001686
observed 4ff072c217550944f3800b7f9bc651a5...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:13.881267ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001686/manifest.json
observed 00619c1d5df64179602e6795758ab775...
fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139
2026-09-15T20:00:13.758954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000001686/publication.txt
observed 25d24f20c10f5594ed2b179b9a772496...
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