OT-2026-000003933
Publication integrity record
Vacuum cup gripper, two outlet manifold, plant vacuum fed, pressure verified
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-2026-000003933) never changes.
Identity and time
| Publication number | OT-2026-000003933 · never reused |
|---|---|
| Internal UUID | 01a0a90b-81b2-7b1a-ad28-56accfc2b0f9 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:08:18.741844Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003933 |
| Status | PUBLIC |
Content hashes
| Canonical text | b3689d0e746e6e3b3260763f2b5e8d8bd67c4d882ed8cd64a2f7bdd000a5cc11 |
|---|---|
| Markdown | f90e8678afb92b57c9eec1295497ac6995a24a59ab9ed47ee22c3c9ef2e068d4 |
| Publication page | d3e5d7dff1416b6e1d5ce67b056ed1689a50566a60cdaa251ef20d0899b0e0ef |
| Manifest | 8a814a9637cc4260d49927806ef44018a1162e17adbed5f13ebc30fceb4c73ac |
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 | 3asLBTk7VVq8SAZqSkh2Y/SQFCLwmUMpWCz5Gb1u7J5drujF95aJLO5qDdPrAsZz5WTGJxoo6i/Qp8Yp71toAQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-10-13T20:42:00.081467Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003933observed d3e5d7dff1416b6e1d5ce67b056ed168...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-13T20:42:00.010920Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003933/manifest.jsonobserved 8a814a9637cc4260d49927806ef44018...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T20:41:59.935739Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003933/publication.mdobserved f90e8678afb92b57c9eec1295497ac69...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T20:41:59.715901Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003933/publication.txtobserved b3689d0e746e6e3b3260763f2b5e8d8b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T00:42:19.318875Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003933observed d3e5d7dff1416b6e1d5ce67b056ed168...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T00:42:19.195582Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003933/manifest.jsonobserved 8a814a9637cc4260d49927806ef44018...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T00:42:19.074217Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003933/publication.mdobserved f90e8678afb92b57c9eec1295497ac69...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T00:42:18.802843Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003933/publication.txtobserved b3689d0e746e6e3b3260763f2b5e8d8b...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 |
|---|