OT-2026-000004428
Publication integrity record
Vacuum cup gripper, four outlet manifold, 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-2026-000004428) never changes.
Identity and time
| Publication number | OT-2026-000004428 · never reused |
|---|---|
| Internal UUID | 01a0a917-625f-7d77-8ec3-943372268aa1 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:21:17.155119Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004428 |
| Status | PUBLIC |
Content hashes
| Canonical text | 27ef2e83a4914238fa313681b6d03803b1a9d06160a7796435178c471dcd6a8b |
|---|---|
| Markdown | 13ffb61fd8e5acc6de245ce3abb892dfbe59dfbb47d52ed2229204b15b5840e3 |
| Publication page | 758dcc3a58496232983957caca1f5800a649cecbafc424488101ad5d83907593 |
| Manifest | 0d572e3bb5eb0e03ee8b3cea91b51a08ef4d966f3dd7aa230c241a72f53fb488 |
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 | 4atR9rDZPxVJPG4k21SOU03hEdjaH+NyFDdVFJRIJTp+ojes8wFcG0TqavEr1wv/QMDxmbGsPNBJoBcuBv2sAQ== |
| 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
| 2026-09-16T07:30:28.671920Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004428observed 758dcc3a58496232983957caca1f5800...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T07:30:28.657855Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004428/manifest.jsonobserved 0d572e3bb5eb0e03ee8b3cea91b51a08...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:28.644736Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004428/publication.mdobserved 13ffb61fd8e5acc6de245ce3abb892df...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:28.630667Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004428/publication.txtobserved 27ef2e83a4914238fa313681b6d03803...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. |
|---|