OT-2026-000004431
Publication integrity record
Bellows cup vacuum gripper, common isolation valve, four outlet manifold, two stage ejector, 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-2026-000004431) never changes.
Identity and time
| Publication number | OT-2026-000004431 · never reused |
|---|---|
| Internal UUID | 01a0a917-7dd5-70a4-ac4a-12a2d306c7ab · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:21:24.185028Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004431 |
| Status | PUBLIC |
Content hashes
| Canonical text | a19945c1a0f83d43c250b4dcae47c0dd6c5aedbd3558ac1bf217bc2e57ed235c |
|---|---|
| Markdown | 38663976e7ec9c353f8a5ec1a62d98d65f761e981aaf99416fec1b0b3f5b38f1 |
| Publication page | b4cba8230428eea70ea87c1e596a320301e08730949e50bc9b9ca16f7c78e8a5 |
| Manifest | 24f4a39174e5a409060410525bad5925818afb8fb47cb2ce0c02d9b12f889213 |
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 | 8807aKryJNSN8ZyhS1/wxpSQh+28wq18c08r+a35UHV54W9EJrDpoBZOHx1EehmuUb7iwRDCEeG/iAk/TS8IDg== |
| 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
| 2026-09-16T08:43:13.219564Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004431observed b4cba8230428eea70ea87c1e596a3203...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-16T08:43:12.698206Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004431/manifest.jsonobserved 24f4a39174e5a409060410525bad5925...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:43:12.193006Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004431/publication.mdobserved 38663976e7ec9c353f8a5ec1a62d98d6...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T08:43:11.465829Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004431/publication.txtobserved a19945c1a0f83d43c250b4dcae47c0dd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:28.386394Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004431observed b4cba8230428eea70ea87c1e596a3203...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:28.372233Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004431/manifest.jsonobserved 24f4a39174e5a409060410525bad5925...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:28.234364Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004431/publication.mdobserved 38663976e7ec9c353f8a5ec1a62d98d6...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-16T07:30:28.219825Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004431/publication.txtobserved a19945c1a0f83d43c250b4dcae47c0dd...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. |
|---|