OT-2026-000004430
Publication integrity record
Bellows cup vacuum gripper, three zone face, per zone isolation, two stage ejector, 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-2026-000004430) never changes.
Identity and time
| Publication number | OT-2026-000004430 · never reused |
|---|---|
| Internal UUID | 01a0a917-751c-7f68-82a9-93a51f72d9fa · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:21:21.951022Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004430 |
| Status | PUBLIC |
Content hashes
| Canonical text | f7bc151b2aa9b98743faca9ac3d7aa0cf93db002cd4041973c24cf01c799afe0 |
|---|---|
| Markdown | f4dce784276e79178fd715ce33eaa6e1e02f8d8167e0a76f23e990c1dd6662b3 |
| Publication page | 3387eff4d8f056b8d4210a1d7a6f988a1299c01cb6c5a646b0ffaf19fb28c491 |
| Manifest | 43d00ee5498e56ac21dbb8ef80443f70a019dcb587ee4dfabacd7d76d1cf3057 |
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 | JqN6EVgkBuMzMiUSf1WqQx7HXbXz5w5YdjjbZlGq+x96A58b/M5IXWCp10aA5T68jO6LzN7F1rJ34GbTNBEWAg== |
| 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
| 2026-10-27T16:41:04.120511Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004430observed 3387eff4d8f056b8d4210a1d7a6f988a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-27T16:41:04.052758Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004430/manifest.jsonobserved 43d00ee5498e56ac21dbb8ef80443f70...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T16:41:03.985569Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004430/publication.mdobserved f4dce784276e79178fd715ce33eaa6e1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-27T16:41:03.639618Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004430/publication.txtobserved f7bc151b2aa9b98743faca9ac3d7aa0c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T20:41:37.883180Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004430observed 3387eff4d8f056b8d4210a1d7a6f988a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T20:41:37.820909Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004430/manifest.jsonobserved 43d00ee5498e56ac21dbb8ef80443f70...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T20:41:37.772522Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004430/publication.mdobserved f4dce784276e79178fd715ce33eaa6e1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-17T20:41:37.691545Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004430/publication.txtobserved f7bc151b2aa9b98743faca9ac3d7aa0c...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 |
|---|