OT-2026-000042781
Publication integrity record
Single cup vacuum gripper, three stage ejector, sustained blow-off after 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-2026-000042781) never changes.
Identity and time
| Publication number | OT-2026-000042781 · never reused |
|---|---|
| Internal UUID | 01a0ae7a-c0d0-77a9-8619-b4e15f346284 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:27:55.489038Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000042781 |
| Status | PUBLIC |
Content hashes
| Canonical text | 0965c298801d42a701c145622b02f981eae7a2e05b17b6305deff69500fdb0d9 |
|---|---|
| Markdown | cbbec1ab9690b52050e5692a455064d7f16d28aeb1f46d946a250499245d8009 |
| Publication page | 517ff6efa1d66ee76d483745dbc1c37ab58fcc00cb1e493fdd9de1d2697e00d2 |
| Manifest | 8cffb5bc29fb113edfebaac79c49a19ef845f311b7e766ef94ba91b6e009b295 |
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 | kln2CWGvg6HUIWr2AJYIleTqIiw4c1aDrurovq5bjdwD1xuugTbgfZVToRgvbYiywWmqVta3E2U6BQSvMFt8Cg== |
| 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
| 2026-10-11T20:41:20.799126Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042781observed 517ff6efa1d66ee76d483745dbc1c37a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-11T20:41:20.695372Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042781/manifest.jsonobserved 8cffb5bc29fb113edfebaac79c49a19e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T20:41:20.577146Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042781/publication.mdobserved cbbec1ab9690b52050e5692a455064d7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T20:41:20.402516Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042781/publication.txtobserved 0965c298801d42a701c145622b02f981...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:15:14.630121Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042781observed 517ff6efa1d66ee76d483745dbc1c37a...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:15:14.611634Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042781/manifest.jsonobserved 8cffb5bc29fb113edfebaac79c49a19e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:15:14.592650Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042781/publication.mdobserved cbbec1ab9690b52050e5692a455064d7...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:15:14.572946Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042781/publication.txtobserved 0965c298801d42a701c145622b02f981...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
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|