OT-2026-000000687
Publication integrity record
Removable valve plug assembly
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-2026-000000687) never changes.
Identity and time
| Publication number | OT-2026-000000687 · never reused |
|---|---|
| Internal UUID | 01a0a673-b302-72af-81c3-ff47edf49240 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:03:15.458575Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000000687 |
| Status | PUBLIC |
Content hashes
| Canonical text | ff27bee09ad40827d86cc95dafd8614ca1fec47706f98c3675463caaf7e564fa |
|---|---|
| Markdown | 4b4e985732b0c26f9aca1ad9f5567128247a25c9d20870e759c7980a1c74baae |
| Publication page | 9c5bcc094028c768d583640420647c9d518ca575a3477afa90a56fda104fb3e0 |
| Manifest | 988f9ef9a59118b688fe80d89c5da383132e2403a4246d97c225fc2faff4275b |
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 | k2fd+JUsXDK2osW8Dnib0xQOOJnwjF9fqJRn7bx6z3dmECKWPwA6EG8EkDmWrMweE0nj0OQs9EEm3XWKuoMoBw== |
| 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
| 2026-09-18T08:41:27.765680Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000687observed 9c5bcc094028c768d583640420647c9d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-18T08:41:27.648093Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000687/manifest.jsonobserved 988f9ef9a59118b688fe80d89c5da383...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T08:41:27.497724Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000687/publication.mdobserved 4b4e985732b0c26f9aca1ad9f5567128...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T08:41:27.277488Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000687/publication.txtobserved ff27bee09ad40827d86cc95dafd8614c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:15.829876Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000687observed 9c5bcc094028c768d583640420647c9d...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:15.798658Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000687/manifest.jsonobserved 988f9ef9a59118b688fe80d89c5da383...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T20:40:15.787222Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000000687/publication.txtobserved ff27bee09ad40827d86cc95dafd8614c...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 |
|---|