OT-2026-000003264
Publication integrity record
Vacuum chuck 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-2026-000003264) never changes.
Identity and time
| Publication number | OT-2026-000003264 · never reused |
|---|---|
| Internal UUID | 01a0a6a6-59a9-71cd-a0ce-722ea97a4cd8 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-15T19:58:34.922294Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003264 |
| Status | PUBLIC |
Content hashes
| Canonical text | 25fc3c0a590bfca3e4af50655e0aa97fa71969c8413dee7744feeb08261fd0a4 |
|---|---|
| Markdown | a160094039e18878a63c801a283c015e8128f3d1168739a27fc4c8801f5dc0b0 |
| Publication page | 8e9461c5d0c86dec199da6aa1e479115d6f3367098523093c9691d4c36bb606c |
| Manifest | e86f60644baa78c69a3e9867ed4e3b1f92956a0eb9a7ee442bbccf5c86c00780 |
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 | bkIB/z+GMoz53s1Q0DNqV40frginBVGrCCdWW1hriLo94xh/pACO2H/MvS17YFL1rHU8rjtmsMUOAbfDGbwIBw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-15T20:07:03Z batch OT-TS-2026-W38-004 · RFC 3161 token · inclusion proof root d42f3e627490c26ffd144bf37543fecf... |
|---|
Independent retrieval
| 2026-09-16T04:23:10.220075Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003264observed 8e9461c5d0c86dec199da6aa1e479115...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T04:23:10.206725Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003264/manifest.jsonobserved e86f60644baa78c69a3e9867ed4e3b1f...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:10.193947Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003264/publication.mdobserved a160094039e18878a63c801a283c015e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T04:23:10.179198Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003264/publication.txtobserved 25fc3c0a590bfca3e4af50655e0aa97f...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:44.788636Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003264observed 8e9461c5d0c86dec199da6aa1e479115...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:44.678992Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003264/manifest.jsonobserved e86f60644baa78c69a3e9867ed4e3b1f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:44.562448Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003264/publication.mdobserved a160094039e18878a63c801a283c015e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T00:43:44.392802Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003264/publication.txtobserved 25fc3c0a590bfca3e4af50655e0aa97f...fetched by grabo-systems from 34.44.131.203, 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 |
|---|