OT-2026-000000719
Publication integrity record
Powder protecting three-way valve with cylindrical heating element
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-2026-000000719) never changes.
Identity and time
| Publication number | OT-2026-000000719 · never reused |
|---|---|
| Internal UUID | 01a0a673-bc8f-7e8d-88ad-a23eabe2c18f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:17.904483Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000719 |
| Status | PUBLIC |
Content hashes
| Canonical text | 9191fded1301167740c18ab17e790b2010dffde08695849477e4fe2879c3f0b2 |
|---|---|
| Markdown | e3ac991c3ba753a818458293198f874bb0e59232e6e0e15c58f38b790561ee24 |
| Publication page | 89bbdf5e02cee945b05c97ee1f4b583d756e46d1579e7150882cbf6d0ec1920d |
| Manifest | 9303573ed027f00de3fe37ed2ab1778f2c6ae1c162c0b5eeeff1ffa1e7cbcd3d |
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 | KTWWAmkYwQaj1qkWjNo6bn9qi0Q/4U7ytJcOBDKzc3ZU2oCdRYfaDgzGYCBc5R3ot0bCTgI+VroQ54UkU6MCCA== |
| 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
| 2026-10-04T04:23:03.962525Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000719observed 89bbdf5e02cee945b05c97ee1f4b583d...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-04T04:23:03.948479Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000719/manifest.jsonobserved 9303573ed027f00de3fe37ed2ab1778f...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-04T04:23:03.931716Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000719/publication.mdobserved e3ac991c3ba753a818458293198f874b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-10-04T04:23:03.880036Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000719/publication.txtobserved 9191fded1301167740c18ab17e790b20...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:41:33.497492Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000719observed 89bbdf5e02cee945b05c97ee1f4b583d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:41:33.328928Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000719/manifest.jsonobserved 9303573ed027f00de3fe37ed2ab1778f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:41:33.089522Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000719/publication.mdobserved e3ac991c3ba753a818458293198f874b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:41:32.849107Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000719/publication.txtobserved 9191fded1301167740c18ab17e790b20...fetched by grabo-systems from 34.44.131.203, 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 |
|---|