OT-2026-000090720
Publication integrity record
Three bellows cup vacuum gripper, three zone face, per zone isolation, plant vacuum fed, pressure sensor per zone, 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-2026-000090720) never changes.
Identity and time
| Publication number | OT-2026-000090720 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-7f31-7e8e-902b-951302aee065 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:04:46.997728Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000090720 |
| Status | PUBLIC |
Content hashes
| Canonical text | 7785764645eef133307d7d6a39fbdebbc4402a071e91eda7a7e9343c2da45e78 |
|---|---|
| Markdown | b02db2414296612a5aee8cc5feda929349fbe847f8b8d4fd04113c1b1b71f9d6 |
| Publication page | dd695d10f601f8690fc354044806c0ff6a9b82c8f1998a2a104f77460f0c341c |
| Manifest | 10b75cb7153d5d68b245d6ddf70394ef05cea4fcb437f3a894f1cffea10589a1 |
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 | oBuGB4gprml0tq+ucOJtPIfj/MDJR4Pk6VYidxmbBEFCeZTbUw3kkgIVSA3t1Xsf4CJ91s3Jxj3ZlFblVyvnDg== |
| 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
| 2026-10-13T20:41:57.031425Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090720observed dd695d10f601f8690fc354044806c0ff...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-13T20:41:56.959392Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090720/manifest.jsonobserved 10b75cb7153d5d68b245d6ddf70394ef...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T20:41:56.879594Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090720/publication.mdobserved b02db2414296612a5aee8cc5feda9293...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-13T20:41:56.802781Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090720/publication.txtobserved 7785764645eef133307d7d6a39fbdebb...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:22.450766Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090720observed dd695d10f601f8690fc354044806c0ff...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:22.433571Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090720/manifest.jsonobserved 10b75cb7153d5d68b245d6ddf70394ef...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:22.415012Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090720/publication.mdobserved b02db2414296612a5aee8cc5feda9293...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T09:44:22.398393Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000090720/publication.txtobserved 7785764645eef133307d7d6a39fbdebb...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
| 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 |
|---|