OT-2026-000002694
Publication integrity record
Conveying line for pneumatic conveyance of materials, use, and pneumatic conveyance 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-2026-000002694) never changes.
Identity and time
| Publication number | OT-2026-000002694 · never reused |
|---|---|
| Internal UUID | 01a0a67e-3221-78d2-bec5-dbb4cd245ab4 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:14:43.362115Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002694 |
| Status | PUBLIC |
Content hashes
| Canonical text | 9062fd0ee2d9af5011eadbbf6c8bc36d5a14fb0c87a4ec01849ec40a0c8da4de |
|---|---|
| Markdown | 1fcfbe992d9fec3cf2864021e4a44a2e82810e7f0f4875229b5ccb0c3075ee28 |
| Publication page | c04f6a2304d0f48ca62fdc141aafcf12428a5ab7df1230d35b481f9cec3fcb46 |
| Manifest | 2e8f56438d442054e37867fd72ac421337f95be9ee6d7b7218aea44d2be49923 |
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 | zaWyq5gHYFHsjrC1HRManq2AjIBKddqX4Kr6IZPjq4UBho/s2wbYB3eIa+zSIEu2hU9ZlmUlzFpOhmbqoY7rBg== |
| 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... |
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Independent retrieval
| 2026-10-03T20:42:02.410519Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002694observed c04f6a2304d0f48ca62fdc141aafcf12...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-03T20:42:02.219358Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002694/manifest.jsonobserved 2e8f56438d442054e37867fd72ac4213...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T20:42:02.011412Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002694/publication.mdobserved 1fcfbe992d9fec3cf2864021e4a44a2e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-03T20:42:01.815030Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002694/publication.txtobserved 9062fd0ee2d9af5011eadbbf6c8bc36d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:15.683953Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002694observed c04f6a2304d0f48ca62fdc141aafcf12...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:15.642367Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002694/manifest.jsonobserved 2e8f56438d442054e37867fd72ac4213...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:15.626449Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002694/publication.txtobserved 9062fd0ee2d9af5011eadbbf6c8bc36d...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 |
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