OT-2026-000004254
Publication integrity record
Vacuum cup gripper, four zone face, common isolation valve, plant vacuum fed
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-2026-000004254) never changes.
Identity and time
| Publication number | OT-2026-000004254 · never reused |
|---|---|
| Internal UUID | 01a0a912-aa58-7677-a096-b5b6225ac2cc · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:16:07.899963Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004254 |
| Status | PUBLIC |
Content hashes
| Canonical text | 8b02a5ff2a6bcb78d0423288bbf1dfc8c473dcaa31d01ccdc5f6f10214420c02 |
|---|---|
| Markdown | d951d2bbcf356969bcf44612131e4bcf801dc2cde71e7715a36474c00e7ed0b2 |
| Publication page | 9ef32b5698d2ab79974e7166c54729618e8e804285bcf3270782cc15a3ad5d7c |
| Manifest | ab830f2d3f7f8a18caef783644eed63cbdd8d4d28ac99a75a30081d6d340b282 |
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 | b7KGBvRXc42szWF3LwzR6+lBGbuu7EuBIOxwj4iwn9WlGF6z5w/1WxIFDrSvn/p0NJNvqcC/mkWGsjN7ei4tCg== |
| 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
| 2026-09-16T07:20:18.730381Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004254observed 9ef32b5698d2ab79974e7166c5472961...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:20:18.713463Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004254/manifest.jsonobserved ab830f2d3f7f8a18caef783644eed63c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:18.699821Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004254/publication.mdobserved d951d2bbcf356969bcf44612131e4bcf...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:20:18.685884Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004254/publication.txtobserved 8b02a5ff2a6bcb78d0423288bbf1dfc8...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. |
|---|