OT-2026-000028420
Publication integrity record
Single bellows cup vacuum gripper, pump fed, sustained blow-off before set-down
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-2026-000028420) never changes.
Identity and time
| Publication number | OT-2026-000028420 · never reused |
|---|---|
| Internal UUID | 01a0ae72-e2f6-7530-b81c-f843e5cfd305 · 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-2026-000028420 |
| Status | PUBLIC |
Content hashes
| Canonical text | 204ff04903e7e86543e6ffcee7615bf0938a56353c004982712d3c5c6fac2f37 |
|---|---|
| Markdown | 4e3975bad32d2a3125bc22e663dd479e93a6306ae5cf86228910c592ad34cf7b |
| Publication page | 021123e755261ce53643996b17476845b1c58527c5570c895cc16d27bc6c1ec4 |
| Manifest | 4483d7873ad69cc6225818d149fe0a371aa2d0bf3a17f362f336f86a5771ebbf |
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 | d1ZGA/q1R5vwy5YbE/qIo/cvlO08xvIMJQI3qurPnMTgbnuqVk2WkVVsz2J+PuJ4p/uxrUHkr2RVje6fVSlFDw== |
| 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
| 2026-09-17T11:40:06.207583Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028420observed 021123e755261ce53643996b17476845...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:40:06.189695Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028420/manifest.jsonobserved 4483d7873ad69cc6225818d149fe0a37...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:06.170101Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028420/publication.mdobserved 4e3975bad32d2a3125bc22e663dd479e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:06.120806Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028420/publication.txtobserved 204ff04903e7e86543e6ffcee7615bf0...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
| Custody package | Pending Custody packages are produced weekly. |
|---|