OT-2026-000000437
Publication integrity record
Hydraulic circuit using a pressure adapter
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-2026-000000437) never changes.
Identity and time
| Publication number | OT-2026-000000437 · never reused |
|---|---|
| Internal UUID | 01a0a673-5b42-729b-9fd6-e04ef4105109 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:52.994465Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000437 |
| Status | PUBLIC |
Content hashes
| Canonical text | 43216d41cfbf0689b1e1e322ca833810b8daaf223a4743e3b63c855c9453dc13 |
|---|---|
| Markdown | 670278b2ce63d8ab3e47f1af7366285f2b6c608ae0dc3975f390e1001b3d7263 |
| Publication page | aa2af4d50080b71e48b1917301dc9fba008ab317d87f6c98d49a118d88ec6dbf |
| Manifest | 6c858b692d78274f0b2720e9bb945ff812445efe9e9ca00f407701561c9c1840 |
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 | 2XDIzQvzaDM69E6Px2IyAKDLYe2rCx+RLGtDEC2Fspm6UE6PELIDE1EHfPG9hBRNNq55dJyJ2Xkh9T6B/MvnDQ== |
| 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
| 2026-09-20T12:41:15.764806Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000437observed aa2af4d50080b71e48b1917301dc9fba...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-20T12:41:15.529952Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000437/manifest.jsonobserved 6c858b692d78274f0b2720e9bb945ff8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:41:15.342921Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000437/publication.mdobserved 670278b2ce63d8ab3e47f1af7366285f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:41:14.934845Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000437/publication.txtobserved 43216d41cfbf0689b1e1e322ca833810...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:41:07.799550Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000437observed aa2af4d50080b71e48b1917301dc9fba...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:41:07.583181Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000437/manifest.jsonobserved 6c858b692d78274f0b2720e9bb945ff8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:41:07.446064Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000437/publication.mdobserved 670278b2ce63d8ab3e47f1af7366285f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T16:41:07.280394Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000437/publication.txtobserved 43216d41cfbf0689b1e1e322ca833810...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 |
|---|