OT-2026-000000720
Publication integrity record
Automatic watercraft piloting system and automatic watercraft piloting assist method
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-2026-000000720) never changes.
Identity and time
| Publication number | OT-2026-000000720 · never reused |
|---|---|
| Internal UUID | 01a0a673-bcdf-7c9d-bb3d-3f3038ced7af · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:17.983640Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000720 |
| Status | PUBLIC |
Content hashes
| Canonical text | 827dfe4deff9be6db67c2bf075ddf67a5ef93d7a46ee19957c982337d623f6af |
|---|---|
| Markdown | da7e6b6a90dbf3868371a072be190a92ab9455d3c6f1ad68db02879d11c2f55e |
| Publication page | d1d76efe4d76ef25c8f0553d911e84237d53547a7ed14acb2d0bebb4d1a6f37d |
| Manifest | 4d180add8fe8780c9fce2ab86b34635420e99c7a9b4c1e1bfad2f50cc1f7586d |
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 | FgTB2wy3vo/oIF8D40qHcELzotqX0eVO8dWiI5qY0ywGecx6yb3N8zzDl3iNrSc22ZX48JKr9rKHfbR0j6Q/Dg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:07:03Z batch OT-TS-2026-W38-001 · RFC 3161 token · inclusion proof root 6369baadb1a246009d149835804d20ba... |
|---|
Independent retrieval
| 2026-09-15T20:43:24.490598Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000720observed d1d76efe4d76ef25c8f0553d911e8423...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:43:23.987503Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000720/manifest.jsonobserved 4d180add8fe8780c9fce2ab86b346354...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:43:23.753761Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000720/publication.txtobserved 827dfe4deff9be6db67c2bf075ddf67a...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:12.019317Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000720observed d1d76efe4d76ef25c8f0553d911e8423...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:11.989803Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000720/manifest.jsonobserved 4d180add8fe8780c9fce2ab86b346354...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:11.975975Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000720/publication.txtobserved 827dfe4deff9be6db67c2bf075ddf67a...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 |
|---|