OT-2026-000003442
Publication integrity record
Vacuum cup 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-2026-000003442) never changes.
Identity and time
| Publication number | OT-2026-000003442 · never reused |
|---|---|
| Internal UUID | 01a0a6c1-83a7-77ed-8f6e-cd4cd8cfb96e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T20:28:15.143547Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003442 |
| Status | PUBLIC |
Content hashes
| Canonical text | 359244267933d822d5aab6ede57716534111846f92d5ed05949e03c3bca9df59 |
|---|---|
| Markdown | 05a0479d9de088182b1109fc7e55a9d525045510580aee175a6e76971aeb06dd |
| Publication page | f71fdd1d888f2a211c19824a3ac874301b41db9bab7873c126dd50409e604f2a |
| Manifest | c88577603d819b22f2241e228ed6c31658ecdb5ccc582c4670935142c65f9017 |
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 | 07TbKsqO8c16XkwlTlAkNVkfCxGFZSiMMYKwR75PK0HZCaScbol4RVgxEQowChhgDiL8OuDtWVcKP4JP5RutAg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:36:25Z batch OT-TS-2026-W38-006 · RFC 3161 token · inclusion proof root 40fdb380c9f41bd58bb35c455dde2c7d... |
|---|
Independent retrieval
| 2026-09-16T04:41:47.378052Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003442observed f71fdd1d888f2a211c19824a3ac87430...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T04:41:47.097698Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003442/manifest.jsonobserved c88577603d819b22f2241e228ed6c316...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:46.769138Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003442/publication.mdobserved 05a0479d9de088182b1109fc7e55a9d5...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:46.408101Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003442/publication.txtobserved 359244267933d822d5aab6ede5771653...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:01.894201Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003442observed f71fdd1d888f2a211c19824a3ac87430...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:01.879857Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003442/manifest.jsonobserved c88577603d819b22f2241e228ed6c316...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:01.864757Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003442/publication.mdobserved 05a0479d9de088182b1109fc7e55a9d5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:01.823636Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003442/publication.txtobserved 359244267933d822d5aab6ede5771653...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 |
|---|