OT-2026-000003205
Publication integrity record
Pipe laying robot apparatus and method for installing pipe
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-2026-000003205) never changes.
Identity and time
| Publication number | OT-2026-000003205 · never reused |
|---|---|
| Internal UUID | 01a0a69d-9833-7524-9dfa-bd6c98076380 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:49:01.107950Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003205 |
| Status | PUBLIC |
Content hashes
| Canonical text | 933d5490b9b00a2db77b2d419c23afb43149deeea307cde167b25ecad6e1603b |
|---|---|
| Markdown | 0abd5d03573f1e987db9f45a1b4852c06125f8b37eeffbedc3018dfcfa1ec4dc |
| Publication page | 61d839ebf56e73dcfc998f0b4475d94489ff273e1c110474e4e4c0dec8001d7f |
| Manifest | a18689b2bd5dad53e40a3435ddfab0943ff558c9f695d14e41b694ccec7ece49 |
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 | HAHyh/uOMffJCQF86JOlM3qUC3tiI3wbqztQM6YON3MBrCb1zS3Ihdx7qMZmAJF4mOtSRAfAvvtjoIBlKlWKBA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:07:03Z batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof root d42f3e627490c26ffd144bf37543fecf... |
|---|
Independent retrieval
| 2026-09-19T04:23:34.304012Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003205observed 61d839ebf56e73dcfc998f0b4475d944...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-19T04:23:34.288240Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003205/manifest.jsonobserved a18689b2bd5dad53e40a3435ddfab094...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-19T04:23:34.274167Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003205/publication.mdobserved 0abd5d03573f1e987db9f45a1b4852c0...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-19T04:23:34.156873Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003205/publication.txtobserved 933d5490b9b00a2db77b2d419c23afb4...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:02.631757Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003205observed 61d839ebf56e73dcfc998f0b4475d944...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:02.602734Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003205/manifest.jsonobserved a18689b2bd5dad53e40a3435ddfab094...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:02.590580Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003205/publication.txtobserved 933d5490b9b00a2db77b2d419c23afb4...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 |
|---|