OT-2026-000020494
Publication integrity record
Four pad foam vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, 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-2026-000020494) never changes.
Identity and time
| Publication number | OT-2026-000020494 · never reused |
|---|---|
| Internal UUID | 01a0ae6f-437c-710c-be6b-aeb380a62922 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:15:22.507199Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000020494 |
| Status | PUBLIC |
Content hashes
| Canonical text | c48e093aca0c0a030a3f00007f7b93683b9288ad52061a18070a0823e0f74c06 |
|---|---|
| Markdown | a4101cb426dc5aeaeb2b98152846060a70eda58e4813320fc04f57cfb1ea8f5f |
| Publication page | 07d6eea4f2654abd0f5bc72632732bccc8df975d55941595802db6c7a041fa53 |
| Manifest | f2bb76f117a84251e905aac4f66849f43bd5d83f00e88cbcd979357a6714f89a |
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 | YD6eFdS59+DwRU97y2sCIlQdhLZNDRCxd/RDdFcXDxPblcDrNRifJDcDqXI2XWLxDRimZlRfipZIhY16+Fh3AA== |
| 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
| 2026-09-28T04:41:07.559684Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020494observed 07d6eea4f2654abd0f5bc72632732bcc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-28T04:41:07.422369Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020494/manifest.jsonobserved f2bb76f117a84251e905aac4f66849f4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:41:07.337043Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020494/publication.mdobserved a4101cb426dc5aeaeb2b98152846060a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-28T04:41:07.162983Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020494/publication.txtobserved c48e093aca0c0a030a3f00007f7b9368...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:42:38.754680Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020494observed 07d6eea4f2654abd0f5bc72632732bcc...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:42:38.617264Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020494/manifest.jsonobserved f2bb76f117a84251e905aac4f66849f4...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:42:38.477927Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020494/publication.mdobserved a4101cb426dc5aeaeb2b98152846060a...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-20T04:42:38.325616Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000020494/publication.txtobserved c48e093aca0c0a030a3f00007f7b9368...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 |
|---|