OT-2026-000004420
Publication integrity record
Vacuum cup gripper, three zone face, three outlet manifold, 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-2026-000004420) never changes.
Identity and time
| Publication number | OT-2026-000004420 · never reused |
|---|---|
| Internal UUID | 01a0a917-1d2b-7fcb-baf8-11d3ade450a2 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:20:59.440297Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004420 |
| Status | PUBLIC |
Content hashes
| Canonical text | 5aecca329e7ddeca4ad1927b089f90bc04071c964de44dcdc5810916696c76a9 |
|---|---|
| Markdown | 10482fbcaa3466b79497c9e584b61a0e70067f1792f6fac53776dec985ac5c32 |
| Publication page | ac40d3d80ab7e865338336e96775c5c9fe3da8e6bc45b905dfc6325b73553a94 |
| Manifest | c47f4b1774bfc43a27ba9aa62ca053855005b9f1827f144a8d30bf59652957a3 |
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 | OY8HV0Bj2hPgPsnp4p9PIVduiAX15PBZDtfqbBLcX6RmlcoBKbQhMqNJ34UNYVWWstsmKNLrP+Mt/C5eKkvbCQ== |
| 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
| 2026-09-16T07:30:29.621334Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004420observed ac40d3d80ab7e865338336e96775c5c9...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:30:29.498086Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004420/manifest.jsonobserved c47f4b1774bfc43a27ba9aa62ca05385...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:29.483254Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004420/publication.mdobserved 10482fbcaa3466b79497c9e584b61a0e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:29.469943Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004420/publication.txtobserved 5aecca329e7ddeca4ad1927b089f90bc...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. |
|---|