OT-2026-000031957
Publication integrity record
Single cup vacuum gripper, plant vacuum fed, pulsed 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-2026-000031957) never changes.
Identity and time
| Publication number | OT-2026-000031957 · never reused |
|---|---|
| Internal UUID | 01a0ae74-bad2-78bd-8073-63f666f19f75 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:21:20.739935Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000031957 |
| Status | PUBLIC |
Content hashes
| Canonical text | c4acfa9dde51a5974ae80ec234657ca7dd7f256990c694f6634155af82c8eadf |
|---|---|
| Markdown | 9faf237710accf7a100c2978d60e53236ea2f724cd67eb96a2726ac7b516137f |
| Publication page | 7d7362b9bd37ef1fd86bb4fab06ed85f24cbed6c7725b5b8704c9a594c81325a |
| Manifest | a2d3c8b53b0e2da82112391af3cc2cf7aaf0bd181cebad15a7884be4dc2f1e75 |
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 | 3pvdFZOZ8M1ndd+jgZWspEgA932qriCxKg+Rvt5H4kt/IGDdyOBuUaRBzBZgaW0pI4aEwK4jMPZOCslE95gkCQ== |
| 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
| 2026-09-17T11:35:14.699167Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031957observed 7d7362b9bd37ef1fd86bb4fab06ed85f...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:35:14.681959Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031957/manifest.jsonobserved a2d3c8b53b0e2da82112391af3cc2cf7...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:35:14.665457Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031957/publication.mdobserved 9faf237710accf7a100c2978d60e5323...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:35:14.649032Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031957/publication.txtobserved c4acfa9dde51a5974ae80ec234657ca7...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. |
|---|