OT-2026-000004389
Publication integrity record
Vacuum cup gripper, common isolation valve, four outlet manifold, plant vacuum fed
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-2026-000004389) never changes.
Identity and time
| Publication number | OT-2026-000004389 · never reused |
|---|---|
| Internal UUID | 01a0a916-03c6-7706-905a-f7d23466da70 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:19:47.401870Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004389 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4ccf2d02e9a2b2b483f02d2add4719231fa9a03a8e56bc0e4ea3c8fa6e190de1 |
|---|---|
| Markdown | 9509fcca241c3d3577a3862ef35eba84da5159bf384c08b9fda3d989f21beda5 |
| Publication page | 2c2fc4a48e4aa41a5ca248f3716a3266501e8b4472daa4366c033fc6f1d938ec |
| Manifest | edbf970cb168ab61ee5bb0f54840d028a2d285bd1e6c274d29dee45d6d108443 |
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 | 6iG0pEkh6S5FlawfDwdWGwqYQJysMNpvHu9ZJaCzXdH7/xkqgmV0QXmJ38imzJr2/shBdTEGZjnaRIVCFwZeBQ== |
| 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
| 2026-09-16T07:20:03.392668Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004389observed 2c2fc4a48e4aa41a5ca248f3716a3266...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:20:03.377801Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004389/manifest.jsonobserved edbf970cb168ab61ee5bb0f54840d028...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:03.238972Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004389/publication.mdobserved 9509fcca241c3d3577a3862ef35eba84...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:03.226878Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004389/publication.txtobserved 4ccf2d02e9a2b2b483f02d2add471923...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. |
|---|