OT-2026-000030885
Publication integrity record
Single cup vacuum gripper, pump fed, pulsed blow-off after 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-2026-000030885) never changes.
Identity and time
| Publication number | OT-2026-000030885 · never reused |
|---|---|
| Internal UUID | 01a0ae74-3fb5-73a7-b453-cf6c85fa9cf1 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:20:49.275361Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000030885 |
| Status | PUBLIC |
Content hashes
| Canonical text | 0ad1fb88b324b9ba28c4e3a6244d0ed4d0f0dc0a227d27aacfdd14880b217ad7 |
|---|---|
| Markdown | 68bff8a38474da3211d24c26eaaa719c4e4b2e999072f16fc202e66e7f71bf82 |
| Publication page | 8dd943f3efefb67acfb95e1629883579df0fd8a8ecbd8fe4bed9a8f14cebf3dd |
| Manifest | e0f37778a2c93c7d225b9e3df05355986f2f6b8d1bdf2bea8fbeebdb3d02ff38 |
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 | jxK+IltR0M6JSyvLb/abe7s088+Ni819PEuQLBhmEIhEp+MNU+3yngzrot1aaO+3tEDtlu5jP3AC/LNI5EFqCw== |
| 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
| 2026-10-05T20:41:19.954152Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030885observed 8dd943f3efefb67acfb95e1629883579...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-05T20:41:19.893413Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030885/manifest.jsonobserved e0f37778a2c93c7d225b9e3df0535598...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-05T20:41:19.815299Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030885/publication.mdobserved 68bff8a38474da3211d24c26eaaa719c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-05T20:41:19.694055Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030885/publication.txtobserved 0ad1fb88b324b9ba28c4e3a6244d0ed4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:42:03.011326Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030885observed 8dd943f3efefb67acfb95e1629883579...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:42:02.958465Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030885/manifest.jsonobserved e0f37778a2c93c7d225b9e3df0535598...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:42:02.895635Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030885/publication.mdobserved 68bff8a38474da3211d24c26eaaa719c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-29T16:42:02.831675Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000030885/publication.txtobserved 0ad1fb88b324b9ba28c4e3a6244d0ed4...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 |
|---|