OT-2026-000000540
Publication integrity record
Explosion-Proof Water Tank 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-2026-000000540) never changes.
Identity and time
| Publication number | OT-2026-000000540 · never reused |
|---|---|
| Internal UUID | 01a0a673-832e-7061-8b05-df920c9ac439 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:03.215294Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000540 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7dfe608cedac386a7a33b41c32611ede3bdcb6fa0d889c125947d9f8b393d822 |
|---|---|
| Markdown | ff3f257cb7a899a16cf6c9daf4010141046b63f23eebdee7e7520406c341bfe7 |
| Publication page | 61e1cf933e5a910a94948e2dccfa6c162b188d1e30d414f076adc3b235b94342 |
| Manifest | 0fc6dba555a76f0bb8f87b0567fcf5ca161637394bd47a0e781b0bf67c0ac57d |
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 | YqjxRhJ8uknEdIhXsEZ0+OaHjY2NwMZ55ZYG5EWzAruJqRd4kjaYnOiEYTIEBL/NGJV/LW4MrXYs0l9h8D+pCA== |
| 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
| 2026-09-15T20:40:32.471403Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000540observed 61e1cf933e5a910a94948e2dccfa6c16...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T20:40:32.315950Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000540/manifest.jsonobserved 0fc6dba555a76f0bb8f87b0567fcf5ca...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:32.303426Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000540/publication.txtobserved 7dfe608cedac386a7a33b41c32611ede...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 |
|---|