OT-2026-000000059
Publication integrity record
Sealed Enclosure Cooling with Internal Delta-T Sized Air-to-Air Exchanger
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-2026-000000059) never changes.
Identity and time
| Publication number | OT-2026-000000059 · never reused |
|---|---|
| Internal UUID | 01a0a4ed-ba17-75d3-9767-2146771a08a6 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T11:57:18.234328Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000059 |
| Status | PUBLIC |
Content hashes
| Canonical text | 31d817ce28e5f07dc2260cc39798c925572faaf20aa4ee5a3e354e2db5197452 |
|---|---|
| Markdown | 2a5faf704f561a1068ad8beebd43c66c8156f2145cdc368a7d9fdebd0fd99659 |
| dd53aca3624ea29b0834ee01487bcb9c91e5220e0681edacfc774b52f022c1ee | |
| Publication page | 21f376bec4eb97f048b6dc65b6dff59dd791156a8db737dc1644f9b0534f8b17 |
| Manifest | d2bed6cfb260d7e351905f00d8d0a5033f157d0f52a81c8bf3ae67626f58da17 |
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-2026-02 · Verified |
|---|---|
| Signature | uH7UNuAVlOeIae9QCKkrVvOP/p6Myz2GXa1bp5riF6HI6MP3TeW3b+T9bAVB35/O8MqkiRjxPLIudJkMfzJkCw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T12:03:59Z batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof root 374ac7be5b27e8fbd4755a00ec69d4c7... |
|---|
Independent retrieval
| 2026-09-15T12:41:43.015095Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000059observed 21f376bec4eb97f048b6dc65b6dff59d...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T12:41:42.850590Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000059/publication.pdfobserved dd53aca3624ea29b0834ee01487bcb9c...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T12:41:42.653961Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000059/manifest.jsonobserved d2bed6cfb260d7e351905f00d8d0a503...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T12:41:42.520271Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000059/publication.txtobserved 31d817ce28e5f07dc2260cc39798c925...fetched by grabo-systems from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T12:00:02.656491Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000059observed 21f376bec4eb97f048b6dc65b6dff59d...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T12:00:02.625817Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000059/publication.pdfobserved dd53aca3624ea29b0834ee01487bcb9c...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T12:00:02.593696Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000059/manifest.jsonobserved d2bed6cfb260d7e351905f00d8d0a503...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T12:00:02.562280Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000059/publication.txtobserved 31d817ce28e5f07dc2260cc39798c925...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.zstf5540ade9ee87306569c02456843c15d... · 9,431,008 bytes · held by held on site pending an external custodian · retention permanent |
|---|