OT-2026-000090246
Publication integrity record
Two cup vacuum gripper, two zone face, single stage ejector, pressure sensor per zone, 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-2026-000090246) never changes.
Identity and time
| Publication number | OT-2026-000090246 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-428f-7693-a709-dbc50a9a81f3 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:04:31.390046Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000090246 |
| Status | PUBLIC |
Content hashes
| Canonical text | 3fd030fb1d23c1a196fe7f6c95972d1eb0e860ceb5b4acbe34e9d4f7d0844eb8 |
|---|---|
| Markdown | 5557a7e81ed9d501d69fdbc656097b406b9c5e13a132cec197907a40a8e278f5 |
| Publication page | 683c7f3cc4c9d7e1402e71e57e81bed7575338ad7eb1bd954a698513478f6fa2 |
| Manifest | 19662c49575eaf5a02e2d9ada03f6cb8adcaf45cb3d56494dcc39e13724435ad |
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 | Vdfm937RCmsA81AVidst9aBYYRSUsqpb7P8+S6CONYfg5JFiy2AJUR16RcXtUq8aoRJushSUP89eM/meFGpSCg== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-17T09:07:03Z batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof root 061e9ae86cc297cdce873398aaec3f72... |
|---|
Independent retrieval
| 2026-10-07T00:41:56.292165Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090246observed 683c7f3cc4c9d7e1402e71e57e81bed7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-07T00:41:56.116114Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090246/manifest.jsonobserved 19662c49575eaf5a02e2d9ada03f6cb8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T00:41:55.887550Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090246/publication.mdobserved 5557a7e81ed9d501d69fdbc656097b40...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-07T00:41:55.620337Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090246/publication.txtobserved 3fd030fb1d23c1a196fe7f6c95972d1e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:41:22.618668Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090246observed 683c7f3cc4c9d7e1402e71e57e81bed7...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:41:22.356273Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090246/manifest.jsonobserved 19662c49575eaf5a02e2d9ada03f6cb8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:41:22.090049Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090246/publication.mdobserved 5557a7e81ed9d501d69fdbc656097b40...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:41:21.631364Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090246/publication.txtobserved 3fd030fb1d23c1a196fe7f6c95972d1e...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 |
|---|