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What Is Proof-of-Authority?

It's a consensus system that allows only authorized entities to validate transactions in a blockchain network.

The proof-of-authority method to validate transactions on a blockchain is one of the newer mechanisms in blockchain technology. (Unsplash modified by CoinDesk)
The proof-of-authority method to validate transactions on a blockchain is one of the newer mechanisms in blockchain technology. (Unsplash modified by CoinDesk)