OT-2026-000004979
Publication integrity record
Vacuum cup gripper, pump fed, pressure verified, contact triggered, sustained blow off after set down
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-2026-000004979) never changes.
Identity and time
| Publication number | OT-2026-000004979 · never reused |
|---|---|
| Internal UUID | 01a0a929-e00c-7ab9-a700-d6a386f419c9 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:41:28.975712Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004979 |
| Status | PUBLIC |
Content hashes
| Canonical text | e1452ce46c298127f6342d05dce186a96657935815995f8ba4bdabd01137044c |
|---|---|
| Markdown | 5972ecc00627d1cfe9497dcecb1452d7eeb3e8053b0aae556f274e09dba0f3c4 |
| Publication page | 8364c0d643e155944b0a96dd161030a090e1e423a34ff335cbd58cff815cb230 |
| Manifest | 147d2d61d6bd06a7db10cf49a3ad9650eb7e10a328d8a8d42055b05b7ee7fd76 |
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 | ow72ktRT58sYvlDt5wRdL83ROYfJzupQk5tQjipy7zxXeQiKAQ/OHg+dAh1X0osG5vg8ZBah2hWicXNg7V3GCQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:47:02Z batch OT-TS-2026-W38-010 · RFC 3161 token · inclusion proof root e1b42dfa4cd0fb1e3e472afd2db961c2... |
|---|
Independent retrieval
| 2026-09-16T07:50:28.671887Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004979observed 8364c0d643e155944b0a96dd161030a0...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:50:28.658277Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004979/manifest.jsonobserved 147d2d61d6bd06a7db10cf49a3ad9650...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:50:28.645299Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004979/publication.mdobserved 5972ecc00627d1cfe9497dcecb1452d7...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:50:28.631658Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004979/publication.txtobserved e1452ce46c298127f6342d05dce186a9...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. |
|---|