OT-2026-000091148
Publication integrity record
Four cup vacuum gripper, four zone face, common isolation valve, 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-2026-000091148) never changes.
Identity and time
| Publication number | OT-2026-000091148 · never reused |
|---|---|
| Internal UUID | 01a0ae9c-f16b-7808-a17a-7e8c1846e9f0 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T09:05:16.158740Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000091148 |
| Status | PUBLIC |
Content hashes
| Canonical text | f8c5feeb974c5d0d3974727df56b9d6d74020a091fffe950dbd26356ce79f726 |
|---|---|
| Markdown | 7fc3a46375bc67629116bec6030a9ae0d5c5cd94843a0ad19ba5da405d9a0a6e |
| Publication page | 700cd2811dd7b0021b752c4aae0a06af1c761d79e2b37d5043c1d344b008152c |
| Manifest | bdd2c3c1a61eaf9b172d3247440ef0227db3197ece2f68ec7402228888160411 |
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 | VKUTCTgobbvGxFf+vu6ZCgDJYmw9Fibi84DA/uDD8X385KjwrNBdh0bhFAcXOR/KclQIkm+FpvtC16FFwVevDQ== |
| 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
| 2026-10-11T16:41:59.865931Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091148observed 700cd2811dd7b0021b752c4aae0a06af...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-11T16:41:59.798586Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091148/manifest.jsonobserved bdd2c3c1a61eaf9b172d3247440ef022...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T16:41:59.724660Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091148/publication.mdobserved 7fc3a46375bc67629116bec6030a9ae0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-11T16:41:59.601089Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091148/publication.txtobserved f8c5feeb974c5d0d3974727df56b9d6d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T08:42:04.305665Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091148observed 700cd2811dd7b0021b752c4aae0a06af...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T08:42:03.972216Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091148/manifest.jsonobserved bdd2c3c1a61eaf9b172d3247440ef022...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T08:42:03.740109Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091148/publication.mdobserved 7fc3a46375bc67629116bec6030a9ae0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T08:42:03.513255Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000091148/publication.txtobserved f8c5feeb974c5d0d3974727df56b9d6d...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 |
|---|