OT-2026-000000531
Publication integrity record
Valve arrangement and liquid treatment installation for a vehicle washing installation
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-2026-000000531) never changes.
Identity and time
| Publication number | OT-2026-000000531 · never reused |
|---|---|
| Internal UUID | 01a0a673-8070-7b80-a4c7-687fb0caf567 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:02.513000Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000531 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7b4d922e56dbdcc6652ba372c155a64824c54e7a9da4feb0f89f13457827f857 |
|---|---|
| Markdown | 163d26276a6f97b7516ede4d7319f595a9f0c9dd15a2939963efea91d90f457a |
| Publication page | ae54bad875e2c4f1d77d71717f66926e3b57077da4e37372f2513a13e1fb7eb2 |
| Manifest | c3ddac3e8c900538668b49a763136aa2de8ade32ea127fca0c680333e1b77599 |
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 | FjeeHdWNq1j0cfSFZlRXoBZoUNtrFJjaxoZg1FssKcFNptgXRl4aBbw8K1zQpeYm7JSBIKTytbvCO3Ft28UuDQ== |
| 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
| 2026-09-15T20:40:33.330104Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000531observed ae54bad875e2c4f1d77d71717f66926e...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:40:33.300473Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000531/manifest.jsonobserved c3ddac3e8c900538668b49a763136aa2...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:33.287188Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000531/publication.txtobserved 7b4d922e56dbdcc6652ba372c155a648...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 |
|---|