OT-2026-000028308
Publication integrity record
Single bellows cup vacuum gripper, two stage ejector, 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-2026-000028308) never changes.
Identity and time
| Publication number | OT-2026-000028308 · never reused |
|---|---|
| Internal UUID | 01a0ae72-e2f5-7a91-8a76-d53e1e3e411d · 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-2026-000028308 |
| Status | PUBLIC |
Content hashes
| Canonical text | 25a91b99bff302fcf0f6bad390fa3b6a1112ddbe28835bdf46abab805c0b4add |
|---|---|
| Markdown | 1b6e8f4f671b15fb22a753e626fc1f887077ca1d73d29317018bea4640ac0812 |
| Publication page | e062177abc93bfedf9069053f6a9d21191641ffdba0013a1bf25c4487c54b432 |
| Manifest | 754cb8710d0027dbfede5097b4f601f10c6bba9ef8757cb79f95aaaaa84b7d66 |
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 | hU3GzdQsT4a7RVXtqeLkvNBfdicOyxo/GWa9yxPlLhsY+vRdgnk3I6/CSbXLWdRtCuRWTenhUcwCwaV6nqsLBA== |
| 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
| 2026-09-17T11:40:18.196198Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028308observed e062177abc93bfedf9069053f6a9d211...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:40:18.177964Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028308/manifest.jsonobserved 754cb8710d0027dbfede5097b4f601f1...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:18.157532Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028308/publication.mdobserved 1b6e8f4f671b15fb22a753e626fc1f88...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:18.137665Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028308/publication.txtobserved 25a91b99bff302fcf0f6bad390fa3b6a...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. |
|---|