Blockchain//Consensus//Clique

- Proof of Authority: a fixed set of authorized validators take deterministic turns signing blocks.

Proof of Authority: a fixed set of authorized validators take deterministic turns signing blocks.

Turn order determined by block number and the list of signers.

"In-turn" signer has priority; "out-of-turn" signers add a random delay to avoid conflicts.

Adding/removing validators requires on-chain voting via clique_propose — majority needed.

Single malicious validator can censor transactions during their turn — but other validators will include them next.