OT-2026-000001956
Publication integrity record
Arrangement consisting of a crawler crane and a counterweight carriage and method for operating same
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-2026-000001956) never changes.
Identity and time
| Publication number | OT-2026-000001956 · never reused |
|---|---|
| Internal UUID | 01a0a679-a419-7e71-82a2-362c62bd9849 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:09:44.857553Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001956 |
| Status | PUBLIC |
Content hashes
| Canonical text | 849595a5b26ff829391cdc4809fdfd41900600e0660805cbf9094659aba08eee |
|---|---|
| Markdown | 1afed68b6616a9edc7ffe3efedd6345aea70b2c80389053fd90159970c6b7fc3 |
| Publication page | d6aafa213a2511c7fbd5ffa46857b40de39b678cb268418ecb8ce10709d6faf3 |
| Manifest | c57332de710d14e43c0d99b1171ac60d4c78f886449690c40aa836a0253fe18d |
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 | e9kCBMsJZzQTD55Bb7+6IonuAj3Tantk3dLXpzrit3SrjdJSeKTaJJzvAoIkjx8XDgbhhlHNFadYaJ3oegJ2Cw== |
| 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
| 2026-10-29T16:41:45.366247Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001956observed d6aafa213a2511c7fbd5ffa46857b40d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-29T16:41:45.298714Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001956/manifest.jsonobserved c57332de710d14e43c0d99b1171ac60d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T16:41:45.230116Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001956/publication.mdobserved 1afed68b6616a9edc7ffe3efedd6345a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T16:41:45.047216Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001956/publication.txtobserved 849595a5b26ff829391cdc4809fdfd41...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:41:18.785441Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001956observed d6aafa213a2511c7fbd5ffa46857b40d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:41:18.618040Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001956/manifest.jsonobserved c57332de710d14e43c0d99b1171ac60d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:41:18.473884Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001956/publication.mdobserved 1afed68b6616a9edc7ffe3efedd6345a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:41:18.174177Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001956/publication.txtobserved 849595a5b26ff829391cdc4809fdfd41...fetched by grabo-systems from 34.44.131.203, 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 |
|---|