What is 'Proof of Authority' (PoA) consensus and where is it typically used?
-
A
Validators are pre-approved by identity rather than stake or compute, commonly used in private/consortium blockchains
-
B
Authority figures like governments control block production on public blockchains
-
C
The miner with the most transaction history gains authority to validate next
-
D
A PoW variant where authority is granted proportional to hash rate