OT-2026-000028416
Publication integrity record
Single bellows cup vacuum gripper, pump fed, 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-2026-000028416) never changes.
Identity and time
| Publication number | OT-2026-000028416 · never reused |
|---|---|
| Internal UUID | 01a0ae72-e2f6-7a85-8f3f-09ba1cb4b2a7 · 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-2026-000028416 |
| Status | PUBLIC |
Content hashes
| Canonical text | d9cf368b7e3c2ca6463d98661b2892fe82d509fccc6aaa47a67ce1c45e872d9d |
|---|---|
| Markdown | fe18071f63780019f65e960da90aa70e6a07b0d66eafc372064cd0e14eca2058 |
| Publication page | 20553d5a6d8684975a2822e16541702ce1ae71f0bee9f5f0376a18f8fd49d1b9 |
| Manifest | 865cc0743237105c0045231e3c52379f9081154dd66eb6a113a3d8af2255b33e |
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 | 2NNymJfgBQwcX+ZZDbFRDREvZF8N2hsMTql/7tbDIesgU+DJJRnsRaGySmjZHyxRHQnxiMPY+40dNjmdp2chDQ== |
| 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
| 2026-09-17T11:40:32.870433Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028416observed 20553d5a6d8684975a2822e16541702c...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
|---|---|
| 2026-09-17T11:40:32.854840Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028416/manifest.jsonobserved 865cc0743237105c0045231e3c52379f...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:32.838492Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028416/publication.mdobserved fe18071f63780019f65e960da90aa70e...fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139 |
| 2026-09-17T11:40:32.820763Z | HTTP 200 · MATCHhttps://opentechnical.org/p/OT-2026-000028416/publication.txtobserved d9cf368b7e3c2ca6463d98661b2892fe...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. |
|---|