OT-2026-000002043
Publication integrity record
A clamping system for holding a workpiece by vaccum
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-2026-000002043) never changes.
Identity and time
| Publication number | OT-2026-000002043 · never reused |
|---|---|
| Internal UUID | 01a0a67a-3f4b-7f83-9361-510708e6e869 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:10:24.587669Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000002043 |
| Status | PUBLIC |
Content hashes
| Canonical text | 784fe240842f649ddb1eff0f2a16cf7648637977e9fe9ede15b9876eaca5f04c |
|---|---|
| Markdown | be202c9413006343cc1e939a02a8a7c37007a6c6234de276d03c3aafa93fbcdc |
| Publication page | a251df37b08f75887ca5d0bf41e1591002b8bf967000592cc7a4bfa3c5d04057 |
| Manifest | 1edf17e0aa2a3416f5ea323788ba1bf308f98107a7e45dac9125429b324b132d |
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 | 5JHAeVFzlHNFv+6JUynyzQh+1Y60j1E1aa+3NGkivqy6bV4NxlM3WshQxb+7fwM62eqR2zbPr6xsAXl4oFtnCA== |
| 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
| 2026-09-16T04:41:15.787807Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002043observed a251df37b08f75887ca5d0bf41e15910...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T04:41:15.298152Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002043/manifest.jsonobserved 1edf17e0aa2a3416f5ea323788ba1bf3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:15.027984Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002043/publication.mdobserved be202c9413006343cc1e939a02a8a7c3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:41:14.643903Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002043/publication.txtobserved 784fe240842f649ddb1eff0f2a16cf76...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:31.632541Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002043observed a251df37b08f75887ca5d0bf41e15910...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:31.603148Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002043/manifest.jsonobserved 1edf17e0aa2a3416f5ea323788ba1bf3...fetched by instance-3.rotem.ai from 127.0.0.1, which resolved the name to 35.239.157.139 |
| 2026-09-15T19:50:31.589820Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000002043/publication.txtobserved 784fe240842f649ddb1eff0f2a16cf76...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 |
|---|