Hey there! XYO tokens will be used as credits to request information from the network. All components along the Proof of Origin Chain get paid for their involvement in fetching the answer to the query. Sentinels, Bridges, Archivists, and Diviners are all rewarded for their work in XYO tokens. You can read more on that specifically, from part 9 of section 3.3 of the whitepaper [1]. For an overview of how the components operate, check out section 3.2. You can also read a little more on rewards and incentivisation from section 6 of the whitepaper.

With regards hardware specs, the XYO Network is an open system that any operator of location devices can plug into and begin earning XYO Tokens. With regards mining (verifying proof of origin chains) check out these pages [2][3] for more info.