# Solana

Solana is a permissionless network protocol with the parallel smart contract processing functionality.

# Consensus

For consensus, Solana uses a combination of proof of stake to secure the network and the proof of history mechanism to synchronize the network state.

Validators on the network stake SOL to get the right to confirm blocks in assigned time slots.

To get an assigned time slot, validator nodes use the sequence of hashed events that each of them maintains, which is called proof of history.

See also