OT-2026-000013990
Publication integrity record
Six pad foam vacuum gripper, six outlet manifold, common isolation valve, pump 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-2026-000013990) never changes.
Identity and time
| Publication number | OT-2026-000013990 · never reused |
|---|---|
| Internal UUID | 01a0ae6d-8dea-78c9-8294-46e33073893f · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:13:30.489074Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000013990 |
| Status | PUBLIC |
Content hashes
| Canonical text | 2c9bf8b6de45f962b1a4015bbfa4b7f9b452b8889d0bf4e9ee9eb1aa2cd27396 |
|---|---|
| Markdown | c7e78087a1a08b828f86edfda03262ccb30a3df69cc28f96fb0295d6351d118c |
| Publication page | d3be4613b67d010878ab0e11ade2622acb601d31f09318c84ba1a6f8f77b8cb5 |
| Manifest | bb0018c604f6ffda93151e6c1ddbc5b3de1a3360ef1831995d6e62f515c02570 |
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 | MU0DMp4yWoIPtzOmGwjt9rhAgVhcfcHcKuy+qd1vN/3D9o+jjXZnbNUhSOY6lY/0xMDB15SJkyIC1eyMNKuSBA== |
| 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
| 2026-09-23T08:41:06.781138Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013990observed d3be4613b67d010878ab0e11ade2622a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-23T08:41:06.727744Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013990/manifest.jsonobserved bb0018c604f6ffda93151e6c1ddbc5b3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T08:41:06.678751Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013990/publication.mdobserved c7e78087a1a08b828f86edfda03262cc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-23T08:41:06.619345Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013990/publication.txtobserved 2c9bf8b6de45f962b1a4015bbfa4b7f9...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-17T12:09:12.488076Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013990observed d3be4613b67d010878ab0e11ade2622a...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T12:09:12.468165Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013990/manifest.jsonobserved bb0018c604f6ffda93151e6c1ddbc5b3...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T12:09:12.447736Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013990/publication.mdobserved c7e78087a1a08b828f86edfda03262cc...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T12:09:12.421618Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000013990/publication.txtobserved 2c9bf8b6de45f962b1a4015bbfa4b7f9...fetched by instance-3.rotem.ai from 34.69.0.72, 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 |
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