OT-2026-000030421
Publication integrity record
Two cup vacuum gripper, two outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, sustained blow-off before set-down, on a tool changer
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-2026-000030421) never changes.
Identity and time
| Publication number | OT-2026-000030421 · never reused |
|---|---|
| Internal UUID | 01a0ae73-e503-7d41-80b4-8a9d37806136 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:20:26.007257Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000030421 |
| Status | PUBLIC |
Content hashes
| Canonical text | de6f3754e288e3989b5ea2b1d60a26d3d5cb7d47d327e4ee5367aae41c9cb270 |
|---|---|
| Markdown | a4cdaa2c9c8271ce532b50101d46c884c88765c2505ac8c410db66a14c688d16 |
| Publication page | 5cf5fd048d4bc0d48ffd8e26c0ca43fde3f2955fedc9870a81fd497486a953d2 |
| Manifest | a401fa9967ad57f79a8062357c2c6f5c9ca9689647a62776a1510bc23339df6a |
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 | 9SRHCp+SjeXL7obIh4X1T88C1jCeDKeY406ooCr8EQP6HGvj6kqzqG//ns8oFTFnPnvC6Y9CXKk6cP924siiAQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T08:42:32Z batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof root 7c99e0163c3f1d2dc0f1dec0442e2af7... |
|---|
Independent retrieval
| 2026-09-27T12:41:30.898266Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030421observed 5cf5fd048d4bc0d48ffd8e26c0ca43fd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-27T12:41:30.774307Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030421/manifest.jsonobserved a401fa9967ad57f79a8062357c2c6f5c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T12:41:30.692798Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030421/publication.mdobserved a4cdaa2c9c8271ce532b50101d46c884...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T12:41:30.578807Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030421/publication.txtobserved de6f3754e288e3989b5ea2b1d60a26d3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:30.178285Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030421observed 5cf5fd048d4bc0d48ffd8e26c0ca43fd...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:29.966099Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030421/manifest.jsonobserved a401fa9967ad57f79a8062357c2c6f5c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:29.736522Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030421/publication.mdobserved a4cdaa2c9c8271ce532b50101d46c884...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:29.270169Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030421/publication.txtobserved de6f3754e288e3989b5ea2b1d60a26d3...fetched by grabo-systems from 34.44.131.203, 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
| OT-CUSTODY-2026-W38 | OpenTechnical-Custody-2026-W38.tar.zstf2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent |
|---|