OT-2026-000002502
Publication integrity record
Crane upper and lower structure interlocking system, and crane
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-2026-000002502) never changes.
Identity and time
| Publication number | OT-2026-000002502 · never reused |
|---|---|
| Internal UUID | 01a0a67d-1205-7b56-9392-e2877b735bbe · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:13:29.605616Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002502 |
| Status | PUBLIC |
Content hashes
| Canonical text | 6d1a966a683ceb47f953d5cb0f240aad47152c8aab400e2d549b6dc0ca1a8b5d |
|---|---|
| Markdown | 95964de6975e34027ae9c6f2161eceeaf85b886ced42c74dab2923ba04ccda46 |
| Publication page | e219b94c6467a59f4dc357cd88d2afd99f457f2090d8fc9a4db53b178f884235 |
| Manifest | 0f096cd4c179f29bb37351bfa4f3f8b9b298475a3e159f9c395812afe2109b82 |
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 | mpqsLj3RxlmO2Xdt0Tht8ugK5ocVUIsUj9FVTSs/2bcMHq8YQebWBM5f81TI74xLi2CTye1658fpCtGlb6inCg== |
| 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
| 2026-09-15T19:40:08.271770Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002502observed e219b94c6467a59f4dc357cd88d2afd9...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:40:08.238814Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002502/manifest.jsonobserved 0f096cd4c179f29bb37351bfa4f3f8b9...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:40:08.224360Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002502/publication.txtobserved 6d1a966a683ceb47f953d5cb0f240aad...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 |
|---|