OT-2026-000002712
Publication integrity record
Material supply system with valve assembly with improved sealing capabilities
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-2026-000002712) never changes.
Identity and time
| Publication number | OT-2026-000002712 · never reused |
|---|---|
| Internal UUID | 01a0a67e-4ccb-7260-b3b6-db3ce10b474c · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:14:50.187843Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002712 |
| Status | PUBLIC |
Content hashes
| Canonical text | a3badd4ed5ce851435ce2722e6d97ceac510b016b8711bc16077043f10b91d2d |
|---|---|
| Markdown | ae2c6a0713840dfd9d8b210f166d6e918f4ad28a80a5f1f2aaa3153ec1a3f5c1 |
| Publication page | 5dbe170f29fb4fd19c1c4c881262168c91bb2d6c337daf408f0003149896eee9 |
| Manifest | 226afd61fe30ed89407d9e8443da9f97778a246cb6a4d33d9e988c45874e6118 |
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 | Czd/kkGALEXAtxUWYNuv9jr0FAPF3qgcM/9IjMTrluZipUMGKKuT2N9lDGtvnyojaXnj0kJjZl4GrzdAnUuYCQ== |
| 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
| 2026-09-16T08:44:35.379261Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002712observed 5dbe170f29fb4fd19c1c4c881262168c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T08:44:34.902044Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002712/manifest.jsonobserved 226afd61fe30ed89407d9e8443da9f97...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:44:34.702769Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002712/publication.mdobserved ae2c6a0713840dfd9d8b210f166d6e91...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:44:34.129905Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002712/publication.txtobserved a3badd4ed5ce851435ce2722e6d97cea...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:11.657776Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002712observed 5dbe170f29fb4fd19c1c4c881262168c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:11.643623Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002712/manifest.jsonobserved 226afd61fe30ed89407d9e8443da9f97...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:11.628540Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002712/publication.mdobserved ae2c6a0713840dfd9d8b210f166d6e91...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:11.588483Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002712/publication.txtobserved a3badd4ed5ce851435ce2722e6d97cea...fetched by instance-3.rotem.ai from 34.69.0.72, 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 |
|---|