OT-2026-000004719
Publication integrity record
Vacuum cup gripper, per zone isolation, pump fed, pressure verified at each zone, polyurethane cups
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-2026-000004719) never changes.
Identity and time
| Publication number | OT-2026-000004719 · never reused |
|---|---|
| Internal UUID | 01a0a921-299f-750b-9f70-c1719811fa82 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:31:57.987436Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004719 |
| Status | PUBLIC |
Content hashes
| Canonical text | cd7aa79608a3648918f64d232e0b7711b5bf76abe4a96d64a8f56ed06866e2e9 |
|---|---|
| Markdown | 99429195be1af757f973f2be2c9eb45528b09d19c78553379f973ee765ee15f9 |
| Publication page | c523cb03d7cb2b018883d7639d3a13090a35c9b25b257620178ac50cb5b96fec |
| Manifest | 8d0a40ac2de267dbd5e38ef86bb2b45161426e5d4f50ab612a40bca3081aec62 |
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 | 3Kd79t8s3JNHtIxaJJ9T30lWFfT3xHJ4sLSLOLCpo3D92wYMcc2g+pVPDVaI7LVRUMESYVGAwme9PFJvIJgNDQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:47:02Z batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof root e1b42dfa4cd0fb1e3e472afd2db961c2... |
|---|
Independent retrieval
| 2026-09-16T07:40:26.208768Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004719observed c523cb03d7cb2b018883d7639d3a1309...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:40:26.194962Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004719/manifest.jsonobserved 8d0a40ac2de267dbd5e38ef86bb2b451...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:40:26.182385Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004719/publication.mdobserved 99429195be1af757f973f2be2c9eb455...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:40:26.171015Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004719/publication.txtobserved cd7aa79608a3648918f64d232e0b7711...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. |
|---|