Data is stored on multiple nodes, and the number of copies can be configured by the user.
The nodes monitor the quantity of copies for each chunk continuously, and if there are not enough of them, the chunk is replicated to another node to restore the necessary amount. The mechanism is called Autoreplication.
A Datakeeper (node) consistently generates proofs of data storage based on the Merkle Tree structure and the latest hashes in the blockchain.
Datakeepers earn rewards for accepted Proofs-of-Storage on PEAQ mainnet. Users pay from a GAS balance; prices are fixed in USD (1 TB-year = 1,200 GAS = $242).