OT-2026-000000660
Publication integrity record
Valve and fluid control device
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-2026-000000660) never changes.
Identity and time
| Publication number | OT-2026-000000660 · never reused |
|---|---|
| Internal UUID | 01a0a673-aa3a-7f24-b4c3-11a9b18e8ea4 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:13.210668Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000660 |
| Status | PUBLIC |
Content hashes
| Canonical text | 50dd729325deba570778d4df41c0e630609d235b2f2016ad07f4c98dadbefec1 |
|---|---|
| Markdown | c2224de006b0e991d3d50b7d519c114a38e0786c23ca545bd0fca2a66c245a79 |
| Publication page | 4092df82ead48975430e86a8d0e0129a1a96fb9a9fc99e4376ed38dc0b1f9c5a |
| Manifest | 59d509f3ad4ce0f67053109c7940a07744c6b62741632bd4d2a6b289c8be12d2 |
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 | 3u3LWI35nJ1TjXzUd4SQ8kNAxBG/73l5QNQlnv8jAer4zbBr4aD+PchlSW+bS9MenfS92bxQfRv1I9mtjTQLBA== |
| 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
| 2026-10-23T20:41:13.238618Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000660observed 4092df82ead48975430e86a8d0e0129a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-23T20:41:13.190917Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000660/manifest.jsonobserved 59d509f3ad4ce0f67053109c7940a077...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T20:41:13.143544Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000660/publication.mdobserved c2224de006b0e991d3d50b7d519c114a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T20:41:12.909094Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000660/publication.txtobserved 50dd729325deba570778d4df41c0e630...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:41:58.117322Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000660observed 4092df82ead48975430e86a8d0e0129a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:41:57.901824Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000660/manifest.jsonobserved 59d509f3ad4ce0f67053109c7940a077...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:41:57.706331Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000660/publication.mdobserved c2224de006b0e991d3d50b7d519c114a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:41:57.540100Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000660/publication.txtobserved 50dd729325deba570778d4df41c0e630...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 |
|---|