OT-2026-000004220
Publication integrity record
Porous face vacuum gripper, three zone face, four outlet manifold, three 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-2026-000004220) never changes.
Identity and time
| Publication number | OT-2026-000004220 · never reused |
|---|---|
| Internal UUID | 01a0a911-a4d8-7fa7-812d-70bcf6fbd66e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:15:00.958144Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004220 |
| Status | PUBLIC |
Content hashes
| Canonical text | 04ad551d0ae4f5516184b82b4c01ae8a877e100efe8af0a0c67b72ab8c4dca6d |
|---|---|
| Markdown | fa1cfefc50d40a5b07bcf8a243f1a39b04f98295c2ed0c16b64437e38e21e9e7 |
| Publication page | 04722e2a8f1a4ec6d59227e82542d32ebdac6f5a2335c4c980acf25e32779fab |
| Manifest | 38f5edbd1741052da605aa660ba863db37982177e077dc718a74a44e221b3e07 |
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 | dQu720U7FKn+lMQ9SUu+0jII6q0zYUmEaH9M/qkqHvFyokHc7NqWMFNUNOGX0pmc7NEJJFwty/oOwAvB5NvdBw== |
| 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
| 2026-09-16T07:20:22.481033Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004220observed 04722e2a8f1a4ec6d59227e82542d32e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:20:22.469238Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004220/manifest.jsonobserved 38f5edbd1741052da605aa660ba863db...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:22.456935Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004220/publication.mdobserved fa1cfefc50d40a5b07bcf8a243f1a39b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:22.444238Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004220/publication.txtobserved 04ad551d0ae4f5516184b82b4c01ae8a...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. |
|---|