OT-2026-000000537
Publication integrity record
Valve and substrate processing apparatus
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-2026-000000537) never changes.
Identity and time
| Publication number | OT-2026-000000537 · never reused |
|---|---|
| Internal UUID | 01a0a673-8235-711d-ba19-4d482b0a25bc · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:02.965505Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000537 |
| Status | PUBLIC |
Content hashes
| Canonical text | aeaf92156d7a844175fd2483628a93832f5689355ae4242f1d556769ef1d8de7 |
|---|---|
| Markdown | a6fbca30ce4d45eb97f61dea0d28ecd8bbf2d1a980dea2209a0afc760f5b8461 |
| Publication page | ef3146d0fc17dd33469ab1294a9d9615d8dbf7df9cb5c80f9dff6b9c10e9d4a6 |
| Manifest | 914049f3d0f7b68edf3c66a2af4c14a710183c9e44974e6b4914f1107e5c1f21 |
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 | vj8PsJWqhQbrgwNgqTTD70yMA0RP20pE9zNeoGlskOSqPZwwvubcv5pPwjY2FdyMorVJucAeYTnE+P2eyiYGBw== |
| 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
| 2026-09-20T12:41:56.664327Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000537observed ef3146d0fc17dd33469ab1294a9d9615...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-20T12:41:56.485794Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000537/manifest.jsonobserved 914049f3d0f7b68edf3c66a2af4c14a7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:41:56.115476Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000537/publication.mdobserved a6fbca30ce4d45eb97f61dea0d28ecd8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:41:55.843769Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000537/publication.txtobserved aeaf92156d7a844175fd2483628a9383...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:32.759035Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000537observed ef3146d0fc17dd33469ab1294a9d9615...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:32.731901Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000537/manifest.jsonobserved 914049f3d0f7b68edf3c66a2af4c14a7...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:32.719213Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000537/publication.txtobserved aeaf92156d7a844175fd2483628a9383...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 |
|---|