OT-2026-000003251
Publication integrity record
Large manipulator, especially for self-propelled concrete pumps
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-2026-000003251) never changes.
Identity and time
| Publication number | OT-2026-000003251 · never reused |
|---|---|
| Internal UUID | 01a0a6a4-9a35-7caf-a80e-df1b0a67dc76 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:56:40.373867Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003251 |
| Status | PUBLIC |
Content hashes
| Canonical text | f6e736801925d2ca5c66568483162d1676d6946b9fdae1a5afbe230496eebeb4 |
|---|---|
| Markdown | 9e28aa8a90b9ff1ed9cea97a7e1ae43692bbeaa337e5130042ae3882df1f06f7 |
| Publication page | 9d137dbba6a166e1647a99d5b95c6415694f88f53fcc8368a8e15d0a97340637 |
| Manifest | 3535c72d6d2c8051692d0c81a35ef9439fd8bec9f1392bad2407f356a4ccf592 |
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 | dG1FXyLLL3tGgrTf8nKqD8rfPbV7crUc8SKohJWwle6dQmKvbk0JNW+UZ7FcgIFk9wd2PUehPB0VZgd4X2d3Bg== |
| 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
| 2026-09-15T20:00:05.719030Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003251observed 9d137dbba6a166e1647a99d5b95c6415...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:00:05.679727Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003251/manifest.jsonobserved 3535c72d6d2c8051692d0c81a35ef943...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:00:05.664895Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003251/publication.txtobserved f6e736801925d2ca5c66568483162d16...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 |
|---|