OT-2026-000004021
Publication integrity record
Porous face vacuum gripper, per zone isolation, three stage ejector, pressure verified at each zone
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-2026-000004021) never changes.
Identity and time
| Publication number | OT-2026-000004021 · never reused |
|---|---|
| Internal UUID | 01a0a90c-d7e5-7e22-ad88-d3a78c66b52e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:09:46.344504Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004021 |
| Status | PUBLIC |
Content hashes
| Canonical text | 4fb34607f365d467f34ade93937f8d09690b2654b90aa65fa36e5c28fc78e9b1 |
|---|---|
| Markdown | 6b68eb6fabecb5123a7bb0d5275e64adf6ce3a776c11f1974063574df2528b56 |
| Publication page | c783c995a443410681781178f1986f1c1c8bb891b0c010a765396fbd678efbed |
| Manifest | 0b2d8098ca07fca32eef3b7610fd66f09d14871995508fe1416abcefc18ca9fa |
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 | 1wlsZ2HRv+kLVwGG1/hEDZBzQrv8jmnil1H7YOq47f6dgnoJK1WgWOd+IPPq8SERi2gfcx/q1XQACE/rjnrDCQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-09-16T07:10:05.782007Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004021observed c783c995a443410681781178f1986f1c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:10:05.767226Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004021/manifest.jsonobserved 0b2d8098ca07fca32eef3b7610fd66f0...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:10:05.752693Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004021/publication.mdobserved 6b68eb6fabecb5123a7bb0d5275e64ad...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:10:05.738999Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004021/publication.txtobserved 4fb34607f365d467f34ade93937f8d09...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. |
|---|