OT-2026-000090421
Publication integrity record
Three bellows cup vacuum gripper, three zone face, pump fed, pressure sensor per zone, sustained blow-off before set-down, on a tool changer
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-2026-000090421) never changes.
Identity and time
| Publication number | OT-2026-000090421 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-7f2d-7057-9a49-7c5cf8f3777e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:04:46.997728Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000090421 |
| Status | PUBLIC |
Content hashes
| Canonical text | b2747198835b51302e2437a6ec7a392bebdf1328f49500e4f90decaf4d667ef4 |
|---|---|
| Markdown | a15d55b4ed543b86056dc61ab76dce9097983805e980c751b71024197e9d140d |
| Publication page | 440da6820059c96d7fe0df0cb57d68504138a9bd5c78fa90b90731951f2d4722 |
| Manifest | e0a94c3fcd1c0a96ecee253d06776ad305bdd67205a7065f48fbc112478bd313 |
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 | IeAgCGNVKUcH8DL8EScWzDUVAREBkVXxG61IWSELhMdO7S5ECLMNM1PE6hrwwYi/s7AfC8O47iRjz4hfNJW8DQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
|---|
Independent retrieval
| 2026-09-17T09:44:32.184632Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090421observed 440da6820059c96d7fe0df0cb57d6850...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T09:44:32.168668Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090421/manifest.jsonobserved e0a94c3fcd1c0a96ecee253d06776ad3...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:32.152844Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090421/publication.mdobserved a15d55b4ed543b86056dc61ab76dce90...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:32.137168Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090421/publication.txtobserved b2747198835b51302e2437a6ec7a392b...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. |
|---|