OT-2026-000021639
Publication integrity record
Four cup vacuum gripper, four zone face, per zone isolation, pump fed, 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-2026-000021639) never changes.
Identity and time
| Publication number | OT-2026-000021639 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-bb59-7b92-b7f6-2afe3471ff97 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:53.201585Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000021639 |
| Status | PUBLIC |
Content hashes
| Canonical text | c02c767669d148d06f6224f040a86dbef95c3a0d4a3983c901038e3ad8920201 |
|---|---|
| Markdown | 7cdb9f9fac6c285d75d540ee2acd0865cede53e56f62cbfadfe61dc96e6bc285 |
| Publication page | 488cbb07cf896df85e9d3b54f3d0387f0013601bf8e353679cd8eab5c1b0f88a |
| Manifest | d5867067da8ad2fffa1b1dc976d1f867f0809edab54dd016a522fd246577771e |
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 | Ssi9qG/1/VKRniBaS7GnzSoxN0u1xKcCVslJQdq4Yj5TdxgcnsA8FT1ArmxNCttQxvYUafLe8a4D4yR2x63CBg== |
| 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
| 2026-09-17T11:54:10.572771Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021639observed 488cbb07cf896df85e9d3b54f3d0387f...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:54:10.557504Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021639/manifest.jsonobserved d5867067da8ad2fffa1b1dc976d1f867...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:10.541492Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021639/publication.mdobserved 7cdb9f9fac6c285d75d540ee2acd0865...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:54:10.525540Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000021639/publication.txtobserved c02c767669d148d06f6224f040a86dbe...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. |
|---|