OT-2026-000003156
Publication integrity record
Control apparatus for hydraulic excavator
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-2026-000003156) never changes.
Identity and time
| Publication number | OT-2026-000003156 · never reused |
|---|---|
| Internal UUID | 01a0a695-b52e-78ff-98b9-77c35fc802f7 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:40:24.239068Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003156 |
| Status | PUBLIC |
Content hashes
| Canonical text | 395efcd29addd407c21267f81aefee7a2d3aa43d2373e75bb80d27de4801b1c5 |
|---|---|
| Markdown | 593b70c29d1228f6da0921be85168417d47e7c5a2ab0307a16e8831be81f6c69 |
| Publication page | 838dc4e4873277f4c70b1cc28011d9c5f65a5e7a0c7d0779398778e8679b05ea |
| Manifest | c2c3efc8eff246fe5bdf871a883c8d7fc76744a0b14579bad161b20c729693e2 |
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 | +Gw2LYQhtl3BVWeH5YaCgY79E+xjBzpnyqA5dtCkZ741wHbWgLWRMEw3YprYfGTetCYezCDkdYiDrE/Zp4IrAA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:47:02Z batch OT-TS-2026-W38-003 · RFC 3161 token · inclusion proof root 713cd89b73be422b38f7894d4fb6a755... |
|---|
Independent retrieval
| 2026-10-15T12:42:00.847715Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003156observed 838dc4e4873277f4c70b1cc28011d9c5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-15T12:42:00.798049Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003156/manifest.jsonobserved c2c3efc8eff246fe5bdf871a883c8d7f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T12:42:00.747862Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003156/publication.mdobserved 593b70c29d1228f6da0921be85168417...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T12:42:00.629667Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003156/publication.txtobserved 395efcd29addd407c21267f81aefee7a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:08.124086Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003156observed 838dc4e4873277f4c70b1cc28011d9c5...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:08.095708Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003156/manifest.jsonobserved c2c3efc8eff246fe5bdf871a883c8d7f...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:08.083293Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003156/publication.txtobserved 395efcd29addd407c21267f81aefee7a...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 |
|---|