OT-2026-000002287
Publication integrity record
Valve module for vacuum pump
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-2026-000002287) never changes.
Identity and time
| Publication number | OT-2026-000002287 · never reused |
|---|---|
| Internal UUID | 01a0a67b-b395-7762-bd54-76e8f9488830 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:11:59.893829Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002287 |
| Status | PUBLIC |
Content hashes
| Canonical text | 24e9b8e0f6de97f79b4d2c140f7b7f766a45dcd811acb1880106dca5ec8e9b3a |
|---|---|
| Markdown | d756aa2ed1a605585f99856b9d4a5ea0eed8467d8d3e5b99a3a430c78b5b16ba |
| Publication page | 9fc42bd6da20fdd19ae0e509a542b3655093f2e1468b2129d4bf5da6cfd2c346 |
| Manifest | a7bd9673e78ec4560f49662de764016116447372303531899540ce822ca0add4 |
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 | EPAfOdQ+VZh3TDuKTNtwitmlfODgPTYQrVk0BUxGwuf1dMF0TxW5eAeVe3ATOhpzGx4aaBrzYXWA8oVlO+5lAA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T19:27:02Z batch OT-TS-2026-W38-002 · RFC 3161 token · inclusion proof root 2d7e364e718bd6a32072ec57f9edc195... |
|---|
Independent retrieval
| 2026-10-19T08:42:00.228660Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002287observed 9fc42bd6da20fdd19ae0e509a542b365...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-19T08:42:00.181298Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002287/manifest.jsonobserved a7bd9673e78ec4560f49662de7640161...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T08:42:00.129311Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002287/publication.mdobserved d756aa2ed1a605585f99856b9d4a5ea0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-19T08:41:59.974443Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002287/publication.txtobserved 24e9b8e0f6de97f79b4d2c140f7b7f76...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:40:31.980842Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002287observed 9fc42bd6da20fdd19ae0e509a542b365...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:40:31.951178Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002287/manifest.jsonobserved a7bd9673e78ec4560f49662de7640161...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:40:31.938782Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002287/publication.txtobserved 24e9b8e0f6de97f79b4d2c140f7b7f76...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 |
|---|