OT-2026-000002787
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-2026-000002787) never changes.
Identity and time
| Publication number | OT-2026-000002787 · never reused |
|---|---|
| Internal UUID | 01a0a67e-c6c5-7d37-b6d3-fa301534476d · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:15:21.413390Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002787 |
| Status | PUBLIC |
Content hashes
| Canonical text | c0e517039f1da05e5e70bd662185cba8fec794c1b0b5117dc7827db9f2121492 |
|---|---|
| Markdown | 6ac64e48f83b0203d01359d8ec0dd84af5b2f5e3d0f94e4e8bdb0ae65beabf3f |
| Publication page | 614fb18634fbd53549e3d542cd68f9b9fbfc6189ba70e92996c07b3d3e4cecef |
| Manifest | a0d50c5487d694df8671aa323ea9646870801ce01e7f08ed8b4b9fac93bb8994 |
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 | xnArlLE0KPIITN9Ds5yzEJK/quNR8pLQYHD+hcaiI9+6p76uEjSkTRMNSgqC9hZeWtusYeVEhF9ViuIroAOADQ== |
| 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
| 2026-09-15T19:20:33.962042Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002787observed 614fb18634fbd53549e3d542cd68f9b9...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-15T19:20:33.934975Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002787/manifest.jsonobserved a0d50c5487d694df8671aa323ea96468...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:20:33.923311Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002787/publication.txtobserved c0e517039f1da05e5e70bd662185cba8...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 |
|---|