OT-2026-000002993
Publication integrity record
Mitigating oscillation of a lift cable on a crane
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-2026-000002993) never changes.
Identity and time
| Publication number | OT-2026-000002993 · never reused |
|---|---|
| Internal UUID | 01a0a67f-eec8-70de-863f-afd3c4c42e5e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:16:37.193287Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002993 |
| Status | PUBLIC |
Content hashes
| Canonical text | ba7f9b201fee17533f9a5fded34b9cf660f48c3fd9c66d09b4884284a5e85746 |
|---|---|
| Markdown | 4309d31bc8efd54f785d9a3c876b6ad448b014af1ed708a760d99eeb798d97bd |
| Publication page | 899436628e67429e3488ecda121611ba1b7d5da19224d1eafeab18b64c9b9048 |
| Manifest | 7dcb4813edbfb0d89f7d2a505d09544392016b672d7b177964fe4ca108423fa2 |
SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.
Manifest signature
| Algorithm | Ed25519 · key
OT-SIGN-2026-01 · Verified |
|---|---|
| Signature | GLC16cJY1RZJoy72gOU0U//tTpd0N8g45VpN2+ppkKKFlr8BpsvOGMx7nwlp/jR8/KNGogbvknkpY0qoRnm/BA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-09-27T04:23:15.737521Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002993observed 899436628e67429e3488ecda121611ba...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-27T04:23:15.723453Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002993/manifest.jsonobserved 7dcb4813edbfb0d89f7d2a505d095443...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-27T04:23:15.709042Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002993/publication.mdobserved 4309d31bc8efd54f785d9a3c876b6ad4...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-27T04:23:15.661268Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002993/publication.txtobserved ba7f9b201fee17533f9a5fded34b9cf6...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:11.156269Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002993observed 899436628e67429e3488ecda121611ba...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:11.126301Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002993/manifest.jsonobserved 7dcb4813edbfb0d89f7d2a505d095443...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:10.989000Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002993/publication.txtobserved ba7f9b201fee17533f9a5fded34b9cf6...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 archive | Pending 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-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|