Decred employs a hybrid PoW/PoS consensus mechanism, which combines features of the two consensus models, with the PoW miners verifying transactions and the PoS stakers proposing and voting on network upgrades. To align incentives, block rewards are allocated between Proof-of-Work (PoW) miners, stakeholders, and the Decred Treasury.
The Proof-of-Work (PoW) -Proof-of-Stake (PoS) hybrid consent mechanism used by Decred makes any possible attack significantly difficult.
BLAKE-256 Hash Function
Decred uses BLAKE-256 as its hash function. BLAKE-256 is based around a HAIFA construction that incorporates a variation of ChaCha, a stream cipher that has been designed for high performance in software implementations.
The block reward decreases by 1% every 6,144 blocks that are approximately 21 days.
Politeia Self-Governance System
Politeia is a governance model built around the concept of transparency. It allows proposals to be considered and put into action quickly, and fairly. Anyone may submit a proposal on Politeia, the only requirement is paying a minimal fee which is designed to prevent spam. Ticket holders are then able to vote on whether they are for or against the proposal.
When proposals are submitted, they are checked by Politeia administrators. Proposals that are deemed spam or invalid will be censored.