OT-2026-000031944
Publication integrity record
Two bellows cup vacuum gripper, two outlet manifold, pump fed, supply line pressure sensor, 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-2026-000031944) never changes.
Identity and time
| Publication number | OT-2026-000031944 · never reused |
|---|---|
| Internal UUID | 01a0ae74-bad2-74f8-9e88-c3f06565e810 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:21:20.739935Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000031944 |
| Status | PUBLIC |
Content hashes
| Canonical text | b4556a7019459fee6fb10b7357d070b40a1dad442914d1859e85520f000048e3 |
|---|---|
| Markdown | 6f2c7f7a8196f373afbf09f5e30c56dcd1b880bb1e18e0f2c0f7825b1c1ccb00 |
| Publication page | 5f3bb51b9d1b83e58ee77994398af65650a0324bad549c6853e22adc38a32e71 |
| Manifest | 78f6d313aa16c5458c5494498673baf4058e81c04f2f37625307a0cf0aa2dd54 |
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 | UAE9xuTCaR4bAbTc3hceEqXQUUzMx6j9tK2HJrvndBfI9oha2Z40LvA9y8lW/Xd4OE3m8bZrV1x8OuDnjDfDAQ== |
| 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
| 2026-11-01T04:41:06.707221Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031944observed 5f3bb51b9d1b83e58ee77994398af656...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-11-01T04:41:06.656581Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031944/manifest.jsonobserved 78f6d313aa16c5458c5494498673baf4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-01T04:41:06.608711Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031944/publication.mdobserved 6f2c7f7a8196f373afbf09f5e30c56dc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-11-01T04:41:06.550948Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031944/publication.txtobserved b4556a7019459fee6fb10b7357d070b4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T12:41:08.440657Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031944observed 5f3bb51b9d1b83e58ee77994398af656...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T12:41:08.367770Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031944/manifest.jsonobserved 78f6d313aa16c5458c5494498673baf4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T12:41:08.293748Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031944/publication.mdobserved 6f2c7f7a8196f373afbf09f5e30c56dc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T12:41:08.215309Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031944/publication.txtobserved b4556a7019459fee6fb10b7357d070b4...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 |
|---|