OT-2026-000000622
Publication integrity record
Methods and systems for controlling gas firefighting equipment
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-2026-000000622) never changes.
Identity and time
| Publication number | OT-2026-000000622 · never reused |
|---|---|
| Internal UUID | 01a0a673-9f0d-7d6c-ba09-d49f75f334cc · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:10.349571Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000622 |
| Status | PUBLIC |
Content hashes
| Canonical text | 783381c487568c363fc225043ad3c523d46a6bc45b6dfd4dc1f91ce7dc9e32ae |
|---|---|
| Markdown | 5d1b8e7d281a12e7cd364cd60dde4e3461de03f10bb9c8fed9aef4423c37d141 |
| Publication page | 869573d108604c41bc549b780b0720c94bc4571660cbe128a9b5ac3fcb9d1c56 |
| Manifest | a1364764368476dbf4e724eac511967b69663dcfd8a70b233d54fe9660996a53 |
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 | 8yGzVVXh/OjUSDZZZ7NsIxeoszhU2KAs4ZFbSWDTKhcG2ZLKcT36DrG7v5ocGYgPHneRN68Xl8HVkJr2oZ7NCA== |
| 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
| 2026-09-16T08:44:44.893356Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000622observed 869573d108604c41bc549b780b0720c9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T08:44:44.684510Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000622/manifest.jsonobserved a1364764368476dbf4e724eac511967b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:44:44.431239Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000622/publication.mdobserved 5d1b8e7d281a12e7cd364cd60dde4e34...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:44:44.152383Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000622/publication.txtobserved 783381c487568c363fc225043ad3c523...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:23.271663Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000622observed 869573d108604c41bc549b780b0720c9...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:23.240588Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000622/manifest.jsonobserved a1364764368476dbf4e724eac511967b...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:23.229103Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000622/publication.txtobserved 783381c487568c363fc225043ad3c523...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 |
|---|