OT-2026-000000250
Publication integrity record
Heat pump pool water heater systems and methods thereto
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-2026-000000250) never changes.
Identity and time
| Publication number | OT-2026-000000250 · never reused |
|---|---|
| Internal UUID | 01a0a673-272a-7381-9de7-bc33eb2a427d · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:02:39.659193Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000250 |
| Status | PUBLIC |
Content hashes
| Canonical text | 70f5e6e20ff93f33eef11d1b96baf286a19512c538fe39c4622df48b4a32f6b3 |
|---|---|
| Markdown | 35946069a4002ac429b7f2d51976fdb4976edfbd2e085dc3f968d78664eef699 |
| Publication page | f9f4983b0d6cb938af8a193125f3f933942931c03b33bb2d90751790c4a96a74 |
| Manifest | eebe058f11ea6bffdd120e55a6386cf7f0751c7f8696b3a9ce999b8b74f55b1a |
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 | 5naVLvXUFJu8zputE1DbwaL8NFs2hzyz2/d/rOsD5TEOjDg7Nx/7lpsui/efm9uCZgccIx3ZSAV5m8gDjhE3CA== |
| 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
| 2026-09-15T20:50:32.250078Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000250observed f9f4983b0d6cb938af8a193125f3f933...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:50:32.094601Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000250/manifest.jsonobserved eebe058f11ea6bffdd120e55a6386cf7...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:50:32.081800Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000250/publication.txtobserved 70f5e6e20ff93f33eef11d1b96baf286...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 |
|---|