OT-2026-000091075
Publication integrity record
Four bellows cup vacuum gripper, four zone face, common isolation valve, single stage ejector, pressure sensor per zone, sustained 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-2026-000091075) never changes.
Identity and time
| Publication number | OT-2026-000091075 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-c012-76f7-a0c9-525e381e4e4c · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:05:03.518217Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000091075 |
| Status | PUBLIC |
Content hashes
| Canonical text | 89957e94eb2db15055fb7f43ae70df1b79ab76a7d6a193f0a2fdb6836bd0f8ef |
|---|---|
| Markdown | 607a2ed8ec831204fc86664e2ea066f7eb7776cebf87bf62088010459144b1a2 |
| Publication page | 32584fc1180130e85ebe63c415bec1c978ff5b29c718c570a74a19ba299cc068 |
| Manifest | 9ac5894feb6f9718c9a6b9408f46f47906274422b5adc8a66b2993f01f61a448 |
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 | DV2WxdckYsMZA5tDlTjo9WbXrGaVZOGW+4Gym6QC8yk0cHKK5ThWoHDlMVSoRpFEHhyR+TmoTCKmEgdP6WK8Dg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
|---|
Independent retrieval
| 2026-10-23T12:41:11.051391Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091075observed 32584fc1180130e85ebe63c415bec1c9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-23T12:41:10.985165Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091075/manifest.jsonobserved 9ac5894feb6f9718c9a6b9408f46f479...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T12:41:10.914458Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091075/publication.mdobserved 607a2ed8ec831204fc86664e2ea066f7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T12:41:10.693077Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091075/publication.txtobserved 89957e94eb2db15055fb7f43ae70df1b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-18T16:41:27.711648Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091075observed 32584fc1180130e85ebe63c415bec1c9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-18T16:41:27.610220Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091075/manifest.jsonobserved 9ac5894feb6f9718c9a6b9408f46f479...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-18T16:41:27.509963Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091075/publication.mdobserved 607a2ed8ec831204fc86664e2ea066f7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-18T16:41:27.360904Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091075/publication.txtobserved 89957e94eb2db15055fb7f43ae70df1b...fetched by grabo-systems from 34.44.131.203, 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 |
|---|