OT-2026-000019904
Publication integrity record
Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, pulsed 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-2026-000019904) never changes.
Identity and time
| Publication number | OT-2026-000019904 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-1fb6-75ad-95f0-e2e9b789686a · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:13.354643Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000019904 |
| Status | PUBLIC |
Content hashes
| Canonical text | 571e3f2e3699f567bc65968b8f91f664c28e0b48522a6591ed2619175e92f3f2 |
|---|---|
| Markdown | becbb6945a69538d746230ea58d942d217d60527b242b733639d2af532eb1d3c |
| Publication page | 246ad053aa78c59e324d5c0954ea4cdc14ef8fb6b8b8f77d66e512310b7b98f9 |
| Manifest | c51e945d0e4321fffa6d6d6f4126e464d9923e527ae56dedfb3c1e2e416f92e5 |
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 | 4DfcEZ3aBIfVJAZQ5C9vFfQwO/ZotnAtXNAbucjlWPY5YG+C+25KOLbp5mRviymwHnLA2NI0+jArP++dLg2UDw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-09-17T11:58:06.927566Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019904observed 246ad053aa78c59e324d5c0954ea4cdc...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:58:06.911032Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019904/manifest.jsonobserved c51e945d0e4321fffa6d6d6f4126e464...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:58:06.888607Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019904/publication.mdobserved becbb6945a69538d746230ea58d942d2...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:58:06.868916Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019904/publication.txtobserved 571e3f2e3699f567bc65968b8f91f664...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. |
|---|