OT-2026-000001954
Publication integrity record
Crane Counterweight and Suspension
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-2026-000001954) never changes.
Identity and time
| Publication number | OT-2026-000001954 · never reused |
|---|---|
| Internal UUID | 01a0a679-a130-75b9-bb6a-0c7a701a7370 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:09:44.113033Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001954 |
| Status | PUBLIC |
Content hashes
| Canonical text | 938ec8cba930a6201fc8d8ba4ef2c26d7252c8b3198680a6531ca1ae8ae12db3 |
|---|---|
| Markdown | bee9ba27768f138632c9656d646f498f393c7cd05f74bd8930e63bedbcec2188 |
| Publication page | f23699e0b3467ced6867ccea711415ca0d5b337b7f3e242946d9bf9e94d4d35c |
| Manifest | 78eb1b296bc3cf520a97851e824773e7c6cd849ea0235d41d17f0152a25ce749 |
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 | iOAB0od28+Fwnz93MZm1KPDSq8o8cZDu3SZio8tJTDsGH8TCI4VOvt1ycwoqaluxXUJKIG9Kp7dqlIk4MDGoCw== |
| 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
| 2026-09-25T00:41:54.295844Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001954observed f23699e0b3467ced6867ccea711415ca...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-25T00:41:54.248375Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001954/manifest.jsonobserved 78eb1b296bc3cf520a97851e824773e7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T00:41:54.200582Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001954/publication.mdobserved bee9ba27768f138632c9656d646f498f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-25T00:41:54.033606Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001954/publication.txtobserved 938ec8cba930a6201fc8d8ba4ef2c26d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:38.951757Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001954observed f23699e0b3467ced6867ccea711415ca...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:38.777093Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001954/manifest.jsonobserved 78eb1b296bc3cf520a97851e824773e7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:38.624376Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001954/publication.mdobserved bee9ba27768f138632c9656d646f498f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:38.406041Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001954/publication.txtobserved 938ec8cba930a6201fc8d8ba4ef2c26d...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 |
|---|