OT-2026-000003110
Publication integrity record
Rotary channel-selector valve
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-2026-000003110) never changes.
Identity and time
| Publication number | OT-2026-000003110 · never reused |
|---|---|
| Internal UUID | 01a0a68d-569c-7d70-abd0-646e041acc78 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:31:15.741214Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003110 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5a66d154a01b7fefe214c0284a8804b114a7af08866f025b50cc64f28089fea3 |
|---|---|
| Markdown | ba04b844344210e27871e8af62313f12644c054740b792245f8cd3ed91da089b |
| Publication page | 2cecb729abf503f256079dc5316f715b4a8591743026d8929101fc96eaae5a86 |
| Manifest | 1a2f96f719f646e5445936b80544a5a96f7deac35075fbe2d6965e301ce2f0ef |
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 | vZeeAInPtqFI8YzNPk+57ynggkRUDI2tAfjUOy4Ui/+Tu7jWJj9PUs1Qyo70n9uaSoWS7cUfzp7EBrGx1Ck7Cw== |
| 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
| 2026-10-29T20:41:39.066773Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003110observed 2cecb729abf503f256079dc5316f715b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-29T20:41:38.998698Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003110/manifest.jsonobserved 1a2f96f719f646e5445936b80544a5a9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T20:41:38.953258Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003110/publication.mdobserved ba04b844344210e27871e8af62313f12...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-29T20:41:38.797928Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003110/publication.txtobserved 5a66d154a01b7fefe214c0284a8804b1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T12:42:01.236371Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003110observed 2cecb729abf503f256079dc5316f715b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T12:42:01.187261Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003110/manifest.jsonobserved 1a2f96f719f646e5445936b80544a5a9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T12:42:01.139617Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003110/publication.mdobserved ba04b844344210e27871e8af62313f12...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-21T12:42:00.990221Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003110/publication.txtobserved 5a66d154a01b7fefe214c0284a8804b1...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 |
|---|