OT-2026-000028491
Publication integrity record
Foam pad vacuum gripper, three zone face, per zone isolation, 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-2026-000028491) never changes.
Identity and time
| Publication number | OT-2026-000028491 · never reused |
|---|---|
| Internal UUID | 01a0ae72-e2f7-76f6-84d1-e7623e3b0d4d · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:19.949572Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028491 |
| Status | PUBLIC |
Content hashes
| Canonical text | fab7a0fe4a8f2f1b7b5893e1cde36033d1d0d50fe09b5d0fbb316beed1b3cdb5 |
|---|---|
| Markdown | 34f627a8f7f7b6e6461a597b617b9ff45278be3a6569c1a3b5912041f369b5e3 |
| Publication page | 6f64b13771d2d05ba439321dc0e8757fbefbc8e723339a89be523387f9bab196 |
| Manifest | 6988ddd7d52baf3bbfe6496d249f53a995b3e2a612ab85752fd95cd4057dceee |
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 | oByrV9BhqKbKch3kA1+Rt4iJRcLqSxkE0MnFS0rRPBjAM9Q5j8fpTN3x7HzxmeSMCm3D3pU1/Xp+ZapXmBIVAQ== |
| 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
| 2026-10-18T00:41:37.136768Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028491observed 6f64b13771d2d05ba439321dc0e8757f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-18T00:41:37.073360Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028491/manifest.jsonobserved 6988ddd7d52baf3bbfe6496d249f53a9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-18T00:41:37.024190Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028491/publication.mdobserved 34f627a8f7f7b6e6461a597b617b9ff4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-18T00:41:36.928386Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028491/publication.txtobserved fab7a0fe4a8f2f1b7b5893e1cde36033...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T04:41:51.138899Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028491observed 6f64b13771d2d05ba439321dc0e8757f...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T04:41:51.044101Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028491/manifest.jsonobserved 6988ddd7d52baf3bbfe6496d249f53a9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T04:41:50.976216Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028491/publication.mdobserved 34f627a8f7f7b6e6461a597b617b9ff4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-15T04:41:50.763136Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028491/publication.txtobserved fab7a0fe4a8f2f1b7b5893e1cde36033...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 |
|---|