OT-2026-000042388
Publication integrity record
Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, pulsed blow-off after 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-2026-000042388) never changes.
Identity and time
| Publication number | OT-2026-000042388 · never reused |
|---|---|
| Internal UUID | 01a0ae7a-5d74-7c84-8ce3-0168c952752e · UUIDv7, RFC 9562 |
| Publication timestamp | 2026-09-17T08:27:30.052779Z Recorded by the publication infrastructure in UTC, not taken from the submission. |
| Canonical URL | https://opentechnical.org/p/OT-2026-000042388 |
| Status | PUBLIC |
Content hashes
| Canonical text | b600c7cf0b924a57d9246f98135d870899b412a6c8251a6e332d877b01c25c44 |
|---|---|
| Markdown | 28cefd1519473d46d3327787bf1710338079262de14a5b57a5b84ba147540614 |
| Publication page | e86017d6c0a219828a627fdd659627f89a71de6858d524c960e32737781ef8a6 |
| Manifest | aa91b77eccfcdaa91b98b5d7fc57b22634d04817a575cf92405fbc0d09c94ef8 |
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 | 1DEmez1J95Ch90eZ7NNbMuLDsSSlP3Ch7SFb6Og07ULg9Zllpa2X2d1IwL3pzAY5u0YXe7VNVLB5jJS1ocqADg== |
| 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
| 2026-10-25T00:41:33.036705Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042388observed e86017d6c0a219828a627fdd659627f8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-10-25T00:41:32.964617Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042388/manifest.jsonobserved aa91b77eccfcdaa91b98b5d7fc57b226...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T00:41:32.891572Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042388/publication.mdobserved 28cefd1519473d46d3327787bf171033...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-10-25T00:41:32.839110Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042388/publication.txtobserved b600c7cf0b924a57d9246f98135d8708...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T12:41:45.847962Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042388observed e86017d6c0a219828a627fdd659627f8...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T12:41:45.750086Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042388/manifest.jsonobserved aa91b77eccfcdaa91b98b5d7fc57b226...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T12:41:45.650811Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042388/publication.mdobserved 28cefd1519473d46d3327787bf171033...fetched by grabo-systems from 34.44.131.203, which resolved the name to 35.239.157.139 |
| 2026-09-27T12:41:45.545839Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000042388/publication.txtobserved b600c7cf0b924a57d9246f98135d8708...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 |
|---|