You can access sample data produced by the network here.
There are two approved dashcams on the mapping network. The camera specs for the Blackvue dashcam on the Hivemapper network are as follows:
Blackvue Camera Specs
Horizontal Field of View: 136 degrees
Vertical Field of View: 77 degrees
Diagonal Field of View: 162 degrees
Video Resolution: 3840 × 2160
Focal Length: 1814 GPS: Collected at 1HZ
This only represents the raw data that is contributed to Hivemapper. Video data from the dashcam is combined with data from the Hivemapper Contributor App and then processed by the mapping engine to produce the final data product that is delivered via the Map APIs.