OT-2026-000019907
Publication integrity record
Four bellows cup vacuum gripper, four zone face, single stage ejector, 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-2026-000019907) never changes.
Identity and time
| Publication number | OT-2026-000019907 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-1fb6-7d80-84aa-eadc890baff1 · 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-2026-000019907 |
| Status | PUBLIC |
Content hashes
| Canonical text | a6676dc221ae9b213569e968c1c1e3808472e95345c4472b1101ca4b5cf73ab6 |
|---|---|
| Markdown | 16f93d7b3e244e0ca90603ec4141e1ca29b67a3dfcb84452a9e5e67ef0124d30 |
| Publication page | 3923ec881d36c52e2c95bce9026352daedb94a0c12941f3a696bf0eaeb7d9be0 |
| Manifest | be5ca25c9cdc3d15e1759644b82a01cb0099d86b7a8eac07b8f5327dc2126bb8 |
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 | w3rV68l+QBjQW18k1B3/SGDx8E67RHBCxOr+3FJq1hldXwYksuYQd215zyeQZIN9e3T31eUb1tMyGCcOR1RFCw== |
| 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
| 2026-10-06T08:41:51.176843Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019907observed 3923ec881d36c52e2c95bce9026352da...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-06T08:41:51.088770Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019907/manifest.jsonobserved be5ca25c9cdc3d15e1759644b82a01cb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-06T08:41:51.010240Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019907/publication.mdobserved 16f93d7b3e244e0ca90603ec4141e1ca...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-06T08:41:50.906023Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019907/publication.txtobserved a6676dc221ae9b213569e968c1c1e380...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T04:41:28.261745Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019907observed 3923ec881d36c52e2c95bce9026352da...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T04:41:28.208466Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019907/manifest.jsonobserved be5ca25c9cdc3d15e1759644b82a01cb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T04:41:28.143754Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019907/publication.mdobserved 16f93d7b3e244e0ca90603ec4141e1ca...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T04:41:28.080113Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000019907/publication.txtobserved a6676dc221ae9b213569e968c1c1e380...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 |
|---|