OT-2026-000003293
Publication integrity record
Method of and apparatus for processing vacuum pressure information
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-2026-000003293) never changes.
Identity and time
| Publication number | OT-2026-000003293 · never reused |
|---|---|
| Internal UUID | 01a0a6ab-4176-7a4a-aaf8-6e9d180904d0 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:03:56.407161Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003293 |
| Status | PUBLIC |
Content hashes
| Canonical text | a1d4dbd806bd268d658a1f8bbfda49bc37d1748a90db1bae01eeb3dc66f40f24 |
|---|---|
| Markdown | 6515b4633217356215123c4ae8ee6160a61ef045ff04f2316106fdede913da65 |
| Publication page | 93922c887c1f6b1dfd3484ad247538f62899794cbac52aa29bdc365cf18651f7 |
| Manifest | c59f8ab6570294b3ec1c6fe4cc2fb67486f24a117b233cd0a466349592cecc3a |
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 | hCEqP4xKlWcq8BBfSPHivGKIXYI9UAGPTdTVHQRN5i4GABmp/bV4LcW31vHFNYNwknzpGevAs9ZAvoJ023VUDA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:07:03Z batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof root d42f3e627490c26ffd144bf37543fecf... |
|---|
Independent retrieval
| 2026-09-17T00:41:40.211739Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003293observed 93922c887c1f6b1dfd3484ad247538f6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T00:41:39.960911Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003293/manifest.jsonobserved c59f8ab6570294b3ec1c6fe4cc2fb674...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:41:39.817261Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003293/publication.mdobserved 6515b4633217356215123c4ae8ee6160...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T00:41:39.573132Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003293/publication.txtobserved a1d4dbd806bd268d658a1f8bbfda49bc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:07.511490Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003293observed 93922c887c1f6b1dfd3484ad247538f6...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:07.473413Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003293/manifest.jsonobserved c59f8ab6570294b3ec1c6fe4cc2fb674...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:10:07.333144Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003293/publication.txtobserved a1d4dbd806bd268d658a1f8bbfda49bc...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 |
|---|