OT-2026-000031621
Publication integrity record
Three cup vacuum gripper, three outlet manifold, common isolation valve, 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-2026-000031621) never changes.
Identity and time
| Publication number | OT-2026-000031621 · never reused |
|---|---|
| Internal UUID | 01a0ae74-bacf-7696-87da-2422850e78ff · 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-2026-000031621 |
| Status | PUBLIC |
Content hashes
| Canonical text | a89c94aa538b1623e5ac068b2b24bfeddfcdacecda972f0c70030436c4548c2b |
|---|---|
| Markdown | 832f32d8820ada37809a747740597f6e621b6d9fd0ce1fc9a2128ae1125a26a8 |
| Publication page | cfac73ed7af7d3153a654fd9ef8ab836fb0e499aefe0518c49e44f2c2968bf53 |
| Manifest | 57500bfbdec1c854b1c0b8e7e1090e867f35b69cea541911962bb06b10eb7219 |
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 | wUIWcM1DdfpRKMhkklokDObwY7RJcLKcvMSLgIoYPwNvvfD8KpSCR0wlcSFsxaqr6EpFSIdJm3pgnI7mX8JCBQ== |
| 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
| 2026-09-17T11:34:40.199307Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031621observed cfac73ed7af7d3153a654fd9ef8ab836...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:34:40.181808Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031621/manifest.jsonobserved 57500bfbdec1c854b1c0b8e7e1090e86...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:34:40.162728Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031621/publication.mdobserved 832f32d8820ada37809a747740597f6e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:34:40.145049Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031621/publication.txtobserved a89c94aa538b1623e5ac068b2b24bfed...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. |
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