OT-2026-000004287
Publication integrity record
Porous face vacuum gripper, four zone face, per zone isolation, pump 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-2026-000004287) never changes.
Identity and time
| Publication number | OT-2026-000004287 · never reused |
|---|---|
| Internal UUID | 01a0a913-31df-7cf6-90a3-8982b5c64c84 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:16:42.594261Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004287 |
| Status | PUBLIC |
Content hashes
| Canonical text | c5b6099ab7096d380add175aa1720257b0cddae8ca505c0b627fee0701680591 |
|---|---|
| Markdown | d7458eb36a76a0a0f292d5d2b49be3f5ccdc1dbeedfa0c5b62be450ff1d16944 |
| Publication page | 2a5337931a2f042f00edcd0d13eb083926cb075ab95bad3a08d70c36900b5a23 |
| Manifest | 44d9407acd0e6b1c3d011e40aa85b484120ddb337d2e13597da7ea1ca9632970 |
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 | zsOXVPesQP626ROc9KYu+okxKZh3LQvUBhSkUg8vT5EzupsPt4J7Y9XOJrI/LetPFeDdxhRcYVdLpm8voR18BQ== |
| 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
| 2026-09-16T07:20:14.940450Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004287observed 2a5337931a2f042f00edcd0d13eb0839...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:20:14.925526Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004287/manifest.jsonobserved 44d9407acd0e6b1c3d011e40aa85b484...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:14.912522Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004287/publication.mdobserved d7458eb36a76a0a0f292d5d2b49be3f5...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:14.897933Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004287/publication.txtobserved c5b6099ab7096d380add175aa1720257...fetched by instance-3.rotem.ai from 34.69.0.72, 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
| Custody package | Pending Custody packages are produced weekly. |
|---|