OT-2026-000100552
Publication integrity record
Four bellows cup vacuum gripper, four zone face, common isolation valve, pump fed, pressure sensor per zone, sustained blow-off before set-down
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-2026-000100552) never changes.
Identity and time
| Publication number | OT-2026-000100552 · never reused |
|---|---|
| Internal UUID | 01a0aea3-66f1-7574-a5d2-91bcf0de9cf4 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:12:19.463543Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000100552 |
| Status | PUBLIC |
Content hashes
| Canonical text | a740164a3c88b8058206d343b699b4f65452c06b7830fad810b389cbdeb27a56 |
|---|---|
| Markdown | e87f7bc075cbaf4bd4702ad496b363771c7e186029165ba283d75d77542dc0d6 |
| Publication page | 8b34935d1febbccfb99836ef2e94a024a9be816b8e8db42ab6b277f93d8abf02 |
| Manifest | 5cf23f0ebf32611189cd98e977afcff76cdc6583f2ba15539813b28cd2adff14 |
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 | O4ooBH8SEGwaX8dQqmJX4uPLiZPGhirSXK9RNrFPMmRj+yiZtVdrkUaVUidJjbbtps3O+I3Q7ge595M7d2zNBA== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:27:04Z batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof root 095d30148a2ef87d42d7818ebe7543f9... |
|---|
Independent retrieval
| 2026-10-23T12:41:11.992871Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000100552observed 8b34935d1febbccfb99836ef2e94a024...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-23T12:41:11.918596Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000100552/manifest.jsonobserved 5cf23f0ebf32611189cd98e977afcff7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T12:41:11.833257Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000100552/publication.mdobserved e87f7bc075cbaf4bd4702ad496b36377...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T12:41:11.751359Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000100552/publication.txtobserved a740164a3c88b8058206d343b699b4f6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T08:41:10.500947Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000100552observed 8b34935d1febbccfb99836ef2e94a024...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T08:41:10.433732Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000100552/manifest.jsonobserved 5cf23f0ebf32611189cd98e977afcff7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T08:41:10.344048Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000100552/publication.mdobserved e87f7bc075cbaf4bd4702ad496b36377...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-04T08:41:10.168883Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000100552/publication.txtobserved a740164a3c88b8058206d343b699b4f6...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 |
|---|