OT-2026-000004472
Publication integrity record
Bellows cup vacuum gripper, two zone face, three outlet manifold, plant vacuum fed, pressure verified
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-2026-000004472) never changes.
Identity and time
| Publication number | OT-2026-000004472 · never reused |
|---|---|
| Internal UUID | 01a0a919-2f71-7f9f-a5d9-dbae58cd6e95 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-16T07:23:15.188038Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000004472 |
| Status | PUBLIC |
Content hashes
| Canonical text | f740057ded96707b0a193233704a0abece58e2336626ad979c4bc9374490410f |
|---|---|
| Markdown | 73615ae90ff0fc92ca3bfea872fae63c2cacefff3e7f7fb2ae55ab947dfa9e80 |
| Publication page | dd3a199d6a775b78f227281bf7d8c77d9eaff6423a1be7df8430f10997d64fee |
| Manifest | 8225ad92ecc9deac0de24eda3cceb9e00f19c1dc92f7778c530707b702a54c39 |
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 | ydPuzOO2ahF8SdER8ld3Dwth1FjI1KrHzvZcNU0NsvDgnU6naWcwHvT3VgkErwCtUCdrhxszPdp10yE+XPGVBQ== |
| Public key | /integrity/keys · every key we have ever used stays published |
Trusted external timestamp
| timestamp.digicert.com | 2026-09-16T07:27:02Z batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof root aada101caea153fd76622afa3661a5b8... |
|---|
Independent retrieval
| 2026-09-24T12:41:07.059244Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004472observed dd3a199d6a775b78f227281bf7d8c77d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-24T12:41:06.995493Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004472/manifest.jsonobserved 8225ad92ecc9deac0de24eda3cceb9e0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:06.943583Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004472/publication.mdobserved 73615ae90ff0fc92ca3bfea872fae63c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-24T12:41:06.770063Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004472/publication.txtobserved f740057ded96707b0a193233704a0abe...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:42:36.696400Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004472observed dd3a199d6a775b78f227281bf7d8c77d...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:42:36.404934Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004472/manifest.jsonobserved 8225ad92ecc9deac0de24eda3cceb9e0...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:42:36.055990Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004472/publication.mdobserved 73615ae90ff0fc92ca3bfea872fae63c...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T04:42:35.823925Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000004472/publication.txtobserved f740057ded96707b0a193233704a0abe...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 |
|---|