OT-2026-000028950
Publication integrity record
Three pad foam vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, sustained blow-off before set-down
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-2026-000028950) never changes.
Identity and time
| Publication number | OT-2026-000028950 · never reused |
|---|---|
| Internal UUID | 01a0ae73-2a9e-70ff-8c7c-8828865088da · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:38.288761Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028950 |
| Status | PUBLIC |
Content hashes
| Canonical text | 84655ac231b4275b53b7105edf859f24548902ca791c3ed5ee899a58352734a2 |
|---|---|
| Markdown | 528fee953d07aa04152b6147320bd4cbe56f37e1923403d83998faf89a32d1bd |
| Publication page | 2196fcd03b5a8175579f89a9d9ddaac1cad07c9e2f59c7d00948d508d4356917 |
| Manifest | 86902b971afce2cf2e8146c61a341e8ef7d0e42e8b7c7b6d2e7eb057940f0dd8 |
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 | f7HcT2Oybcqxt8vndly6mO2/5ry/LpBBoEAo+VQ0CJd2uzxFBDnTHpQqDoAxbozsfvfVKb+liPkEo7NylyqJCg== |
| 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
| 2026-09-20T12:42:56.276371Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028950observed 2196fcd03b5a8175579f89a9d9ddaac1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-20T12:42:55.871046Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028950/manifest.jsonobserved 86902b971afce2cf2e8146c61a341e8e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:55.393989Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028950/publication.mdobserved 528fee953d07aa04152b6147320bd4cb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T12:42:54.688746Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028950/publication.txtobserved 84655ac231b4275b53b7105edf859f24...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T12:42:11.143444Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028950observed 2196fcd03b5a8175579f89a9d9ddaac1...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T12:42:11.018834Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028950/manifest.jsonobserved 86902b971afce2cf2e8146c61a341e8e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T12:42:10.903710Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028950/publication.mdobserved 528fee953d07aa04152b6147320bd4cb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-19T12:42:10.654113Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028950/publication.txtobserved 84655ac231b4275b53b7105edf859f24...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 |
|---|