OT-2026-000090860
Publication integrity record
Two bellows cup vacuum gripper, two 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-2026-000090860) never changes.
Identity and time
| Publication number | OT-2026-000090860 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-c010-7ad8-8aa7-dddf060e9688 · 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-2026-000090860 |
| Status | PUBLIC |
Content hashes
| Canonical text | a5492feee8aa77a3f8aba1449b8d1815b1d66a56473d2e204ddaf0cb4bd83de5 |
|---|---|
| Markdown | 9b8943f300c8cfaa93a9be92ad271993b848767b57f7716868c578ea5afc930e |
| Publication page | a800c9398f271338e5d531a879a84300df61e66b3ab31d21b1f60a05d389e1d4 |
| Manifest | 857de52723043064bcc5f568063f715111f059251a39e262b44ed8b73ba8a041 |
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 | Ngv9ZjOkzQHRkjk1/PHN+2SZNM+7hgsEf4lij2N24f32eErdDqhTe8HgFssm83hAmKVEb9+PE318rfzbuQQyAA== |
| 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
| 2026-10-13T12:41:23.262756Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090860observed a800c9398f271338e5d531a879a84300...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-13T12:41:23.211988Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090860/manifest.jsonobserved 857de52723043064bcc5f568063f7151...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T12:41:23.136638Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090860/publication.mdobserved 9b8943f300c8cfaa93a9be92ad271993...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T12:41:23.017847Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090860/publication.txtobserved a5492feee8aa77a3f8aba1449b8d1815...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-05T12:41:19.821921Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090860observed a800c9398f271338e5d531a879a84300...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-05T12:41:19.771084Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090860/manifest.jsonobserved 857de52723043064bcc5f568063f7151...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-05T12:41:19.709897Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090860/publication.mdobserved 9b8943f300c8cfaa93a9be92ad271993...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-05T12:41:19.590662Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090860/publication.txtobserved a5492feee8aa77a3f8aba1449b8d1815...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 |
|---|