Data layer

The data layer is the foundation of the NP advertising publishing platform, while collaborating with the application layer and the consensus layer to transparently maintain all incoming data in the NP immutable ledger. The data layer keeps recording all embedding locations, durations, NP coin expenditures, and NP coin balances, and all transactions of NP coins are completed through the one-click purchase mode of the application layer.

The data layer also stores a series of data points for users, and stores the data points in a secure smart contract, and when the miners are making real-time decisions about when and where to place advertisements, the data points are safely passed to the consensus layer.