OT-2026-000006548
Publication integrity record
Vacuum cup gripper, plant vacuum fed, pressure verified at each zone, contact triggered, silicone cups
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-2026-000006548) never changes.
Identity and time
| Publication number | OT-2026-000006548 · never reused |
|---|---|
| Internal UUID | 01a0a95f-0a22-740f-a719-35c8fa5b942e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T08:39:33.157940Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000006548 |
| Status | PUBLIC |
Content hashes
| Canonical text | 62032bc4f0a3637338bd086967d2f14f116ad615b58b4e6bfcc094030d36195d |
|---|---|
| Markdown | cc68a7da27c7491d385e1f7f4cf68c656c14cf804bceb60770eb8f72ba7747a9 |
| Publication page | ad167aa8b9299d733a7d49b3472d33b4bdb9346fadc84ae1784ad72a3180cfd8 |
| Manifest | 46933564b5d55ecf67c9f06c0d30cd6f8f3f6d06c8378ae332453d74e48fea5c |
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 | 0gQI2yzCpKAsuOwVZheHpaVj1AUQve7M6W4MO6mL6csJDZey0dnfcEzOBxyJJ3TM/YnlUrbaPBE8EEKajJx7Aw== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T08:47:03Z batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof root e368e9c5ab06dc5cb1b0682dd54c11f5... |
|---|
Independent retrieval
| 2026-10-24T20:41:32.970818Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006548observed ad167aa8b9299d733a7d49b3472d33b4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-24T20:41:32.922972Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006548/manifest.jsonobserved 46933564b5d55ecf67c9f06c0d30cd6f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-24T20:41:32.873840Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006548/publication.mdobserved cc68a7da27c7491d385e1f7f4cf68c65...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-24T20:41:32.648944Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006548/publication.txtobserved 62032bc4f0a3637338bd086967d2f14f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T12:42:07.301936Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006548observed ad167aa8b9299d733a7d49b3472d33b4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T12:42:06.851883Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006548/manifest.jsonobserved 46933564b5d55ecf67c9f06c0d30cd6f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T12:42:06.636103Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006548/publication.mdobserved cc68a7da27c7491d385e1f7f4cf68c65...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-18T12:42:06.210668Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000006548/publication.txtobserved 62032bc4f0a3637338bd086967d2f14f...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 |
|---|