The Waves LPoS Blockchain
In a traditional proof-of-stake model, any node that chooses to lock up tokens can be eligible to add blocks to the blockchain. The chances that a node will be able to add a block generally increase or decrease depending on the amount of coins a node has locked in a special contract.
With the LPoS, nodes also have the option to lease their balance to full nodes.
This means that when a full node is selected to produce the next block and is compensated, nodes that lease tokens to that selected node earn a certain percentage of the payout.