OT-2026-000002509
Publication integrity record
Tower crane, method and control unit for operating a tower crane, trolley and trolley travel unit
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-2026-000002509) never changes.
Identity and time
| Publication number | OT-2026-000002509 · never reused |
|---|---|
| Internal UUID | 01a0a67d-1bf9-7d07-8f48-6bd00e29d1af · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:13:32.153717Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002509 |
| Status | PUBLIC |
Content hashes
| Canonical text | a87f8881e9b4b33d91b325dd601f70e7860869d85382228eb55ceab0ba8ee8e4 |
|---|---|
| Markdown | b2737f2f86e5b778a5ca37967c9274a4e68170654c36676b00a6d5f70dbdc8fc |
| Publication page | a58103bf89a5280609844a538b067fed6797fa7f5a70b216c7e7698bb8db6297 |
| Manifest | f7dc7abaf880a81d4543d3d1364f1c8f0bd050d16fbf574ca3c8f214d4fc353f |
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 | INBlo3bJFfCBNAeeFuLh+KLn+hiqtE41W5vly++DmKxf5y13JznPAVgXlkUCYMDPGEMIYQ23tqMtgNqJUy/KDQ== |
| 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
| 2026-09-15T19:30:38.918364Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002509observed a58103bf89a5280609844a538b067fed...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:30:38.888934Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002509/manifest.jsonobserved f7dc7abaf880a81d4543d3d1364f1c8f...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:30:38.875708Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002509/publication.txtobserved a87f8881e9b4b33d91b325dd601f70e7...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 |
|---|