OT-2026-000000080
Publication integrity record
Top-loading tower crane systems and associated methods
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-2026-000000080) never changes.
Identity and time
| Publication number | OT-2026-000000080 · never reused |
|---|---|
| Internal UUID | 01a0a672-f9cf-7f86-b1af-6b391d557b4d · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:28.048359Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000080 |
| Status | PUBLIC |
Content hashes
| Canonical text | 1ee6eef3ff1fc5e1ba7e3747901bd5a288c27b358e9fd073b98b4647fcf4b17e |
|---|---|
| Markdown | 60ba85f35e6c6ae6615f137f958a9e4dfefd1a9efa2aa8bf29a6b0eacb404ea7 |
| Publication page | 3143f8c7799880931c5c5fbc3d3bad9e5bd3899782d8f5f9b99d177df518802c |
| Manifest | b38bd6a983291f4b52cc8b1b5bc68e75f40b0b34b8a0829f31c1b18afd7f8fcd |
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 | 83hfc7CAfvRzEWLbrLrKdqcsSP4CKlpS5Gq8LBYakidHTG2h57pusESIp34XeJJlJz56iI+j9iP+5ic/HWbKDA== |
| 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
| 2026-09-15T21:00:14.065084Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000080observed 3143f8c7799880931c5c5fbc3d3bad9e...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T21:00:13.907810Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000080/manifest.jsonobserved b38bd6a983291f4b52cc8b1b5bc68e75...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T21:00:13.895505Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000080/publication.txtobserved 1ee6eef3ff1fc5e1ba7e3747901bd5a2...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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