OT-2026-000003721
Publication integrity record
Bellows cup vacuum gripper, common isolation valve, plant vacuum fed, pressure verified
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-2026-000003721) never changes.
Identity and time
| Publication number | OT-2026-000003721 · never reused |
|---|---|
| Internal UUID | 01a0a90a-dc5f-7c69-8e9a-32a0e367dcce · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:07:36.418489Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000003721 |
| Status | PUBLIC |
Content hashes
| Canonical text | f1c47c7dd6eef3fa98f1882249ec548e825cee4e87bfdb0b41982d72cce5bb73 |
|---|---|
| Markdown | db2f41cf4c3ad8e346390c058332cec1e14a548bc57212b77d6e130d81597ce2 |
| Publication page | 70fe15ee1a3184411872dca7230e7a67073457401e1838b84f16affc70b4073f |
| Manifest | bf41c9af18ef3ef0292b7f24c0ebb14955e66b9374d11e1fd76c969edb66b705 |
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 | 1YTKn6p8G7tI5UbEmL4VgFctp8GQ+DTyl5RsTLHFUK/fcFH17vCX9mL/2P7FquBR1Ilj3zjQV+hrpX1f/OgsDQ== |
| 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
| 2026-09-16T07:50:35.620619Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003721observed 70fe15ee1a3184411872dca7230e7a67...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:50:35.410192Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003721/manifest.jsonobserved bf41c9af18ef3ef0292b7f24c0ebb149...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:50:35.396750Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003721/publication.mdobserved db2f41cf4c3ad8e346390c058332cec1...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:50:35.384611Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000003721/publication.txtobserved f1c47c7dd6eef3fa98f1882249ec548e...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. |
|---|