OT-2026-000031931
Publication integrity record
Three bellows cup vacuum gripper, three zone face, four outlet manifold, plant vacuum fed, pulsed 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-2026-000031931) never changes.
Identity and time
| Publication number | OT-2026-000031931 · never reused |
|---|---|
| Internal UUID | 01a0ae74-bad2-7b54-9e08-1472cc0893d2 · 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-2026-000031931 |
| Status | PUBLIC |
Content hashes
| Canonical text | 1bea44f4ec5d602a23e0935654472abf693a743050c7210e003d3bb48f83b5c3 |
|---|---|
| Markdown | ecdf823d9751ac21577dffbda926320ecbce1b7de5b6188017528c152cf8d364 |
| Publication page | 1b5444041ac6561462bf158b0f73f81f229e447a246a0044bb83454e6311b05e |
| Manifest | d8c5838a2e5aa9c52e7b661290ecc1a806838f27c29d86019ae323fbf415f3bc |
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 | +3fqHmUO6omPKauc8LC92EOFbKRUo5swsx2PeaySSB4FbweqiUYIVUdsJ7kxjpWUJMhpK3mM4n4ZAz7SsWRACg== |
| 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
| 2026-10-28T00:41:18.668376Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031931observed 1b5444041ac6561462bf158b0f73f81f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-28T00:41:18.618082Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031931/manifest.jsonobserved d8c5838a2e5aa9c52e7b661290ecc1a8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T00:41:18.547591Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031931/publication.mdobserved ecdf823d9751ac21577dffbda926320e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-28T00:41:18.476459Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031931/publication.txtobserved 1bea44f4ec5d602a23e0935654472abf...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T16:41:29.631857Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031931observed 1b5444041ac6561462bf158b0f73f81f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T16:41:29.584606Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031931/manifest.jsonobserved d8c5838a2e5aa9c52e7b661290ecc1a8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T16:41:29.533390Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031931/publication.mdobserved ecdf823d9751ac21577dffbda926320e...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T16:41:29.476384Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000031931/publication.txtobserved 1bea44f4ec5d602a23e0935654472abf...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 |
|---|