OT-2026-000001787
Publication integrity record
Hydraulic system
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-2026-000001787) never changes.
Identity and time
| Publication number | OT-2026-000001787 · never reused |
|---|---|
| Internal UUID | 01a0a678-a915-7359-95e8-333b2e207583 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:08:40.597681Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000001787 |
| Status | PUBLIC |
Content hashes
| Canonical text | b0719cb4ba6be40b9ada2050ffe4313b3f867b1fa10dd22eb75cdfa48bf9fce1 |
|---|---|
| Markdown | 80b864e2bbab555ee0074367a7f60669ea08435d5c8f67832f7516d2a83afb6e |
| Publication page | 3d1ca25a42d36ad02934c905e0cb56d247eaff7ef5bcae500ea2e7f4d8a1ead7 |
| Manifest | 166b0081a577b5c7332ca7dda000ea091a4b546157c2d7b4f300ba15a1edd468 |
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 | YWMb43OIlgJ4JLrz+chMVYH2iBDOmHjz9KUylcbSxkuf1sVExZZiufaJVW4vgOBsL7cS/ysaL7FY+H3TdN0lBw== |
| 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
| 2026-09-15T19:10:25.667878Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001787observed 3d1ca25a42d36ad02934c905e0cb56d2...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:10:25.642576Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001787/manifest.jsonobserved 166b0081a577b5c7332ca7dda000ea09...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:10:25.629391Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000001787/publication.txtobserved b0719cb4ba6be40b9ada2050ffe4313b...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 |
|---|