OT-2026-000028990
Publication integrity record
Three pad foam vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold pressure sensor, 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-2026-000028990) never changes.
Identity and time
| Publication number | OT-2026-000028990 · never reused |
|---|---|
| Internal UUID | 01a0ae73-2a9e-7e37-9869-d428bd34848e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:38.288761Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028990 |
| Status | PUBLIC |
Content hashes
| Canonical text | 154d7d41ee6b6cb5d3f1c7df21fde80325d0044eba5d88e13a5c617b48992efd |
|---|---|
| Markdown | e562c1f3b2a0d0ef2a593994cf9f74e75cc438cb5b507cf3e915bdc776248572 |
| Publication page | cf75657d729ca9614289a82cee5aa81becbfa4c4908f81df2f6a03bbcfbc5f0d |
| Manifest | 9fd9a323da6dc305d9be43c74a007931bb4a7a9a9f65a22ca72240f06171aef2 |
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 | 4m1ZB2DYKJuYZCBeUGe/6qS0gt2gqC62uWKWw7WhdglF5qAJlzL8x+5iosZJU6EsxIMeEDtalul6EzRES3R/BQ== |
| 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
| 2026-09-17T08:20:31.766705Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028990observed cf75657d729ca9614289a82cee5aa81b...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T08:20:31.747425Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028990/manifest.jsonobserved 9fd9a323da6dc305d9be43c74a007931...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T08:20:31.730653Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028990/publication.mdobserved e562c1f3b2a0d0ef2a593994cf9f74e7...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T08:20:31.713089Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028990/publication.txtobserved 154d7d41ee6b6cb5d3f1c7df21fde803...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. |
|---|