OT-2026-000028910
Publication integrity record
Three pad foam vacuum gripper, three outlet manifold, common isolation valve, two stage ejector, manifold pressure sensor, sustained 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-2026-000028910) never changes.
Identity and time
| Publication number | OT-2026-000028910 · never reused |
|---|---|
| Internal UUID | 01a0ae73-2a9d-7761-b7e8-f64dfdf462f7 · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:19:38.288761Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000028910 |
| Status | PUBLIC |
Content hashes
| Canonical text | 583d97bc8e79cc0ab2708745b80bbb0bddfbae54cd6ba38e3e1194165f19472e |
|---|---|
| Markdown | 8fe450051cc0a8ac6d91fc534b71048b913131a0ae1ed300390524e99473a46a |
| Publication page | 5c1b93313bbdbc9243ef260d95cb22918454d03c933216ceee2e6eb82b6ebe42 |
| Manifest | 85138af99469c2d2db5a85c59b9c3ed3cc06d175c365f0e77c0245cb60593970 |
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 | jU884YHt+7RbH6JKdPo1nOMekmsTMXl4MK/kTycpdi3dLJ8ImCAy662iojsQ4G1ZI349OhMfQxaX/ZdvMTSXBw== |
| 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
| 2026-10-23T04:41:56.627901Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028910observed 5c1b93313bbdbc9243ef260d95cb2291...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-23T04:41:56.359913Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028910/manifest.jsonobserved 85138af99469c2d2db5a85c59b9c3ed3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T04:41:56.242930Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028910/publication.mdobserved 8fe450051cc0a8ac6d91fc534b71048b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-23T04:41:56.139316Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028910/publication.txtobserved 583d97bc8e79cc0ab2708745b80bbb0b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T00:41:47.252129Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028910observed 5c1b93313bbdbc9243ef260d95cb2291...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T00:41:47.199493Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028910/manifest.jsonobserved 85138af99469c2d2db5a85c59b9c3ed3...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T00:41:47.125165Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028910/publication.mdobserved 8fe450051cc0a8ac6d91fc534b71048b...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-22T00:41:47.045350Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028910/publication.txtobserved 583d97bc8e79cc0ab2708745b80bbb0b...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 |
|---|