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Proof-of-Authority (PoA)

Por CoinGecko | Atualização: Mar 03, 2020
On a technical layer, Proof of Authority performs block validation in a similar heuristic manner as Proof of Stake. However, whereas Proof of Stake assigns a validator's queue and importance based the amount of tokens staked by a validator, a Proof of Authority validator's queue arbitrarily predetermined based on their identity and repupation. This method of block validation addresses the issue of speed and scalability with the drawback of higher centralization as opposed to Proof of Stake or Proof of Work.

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Related Terms

Lightning Network
It is the "second layer" or an off-chain of payment protocol that operates on top of a blockchain. Payments on this network do not need block confirmation and it will be instant.
Circulating supply
An approximation of the number of coins or tokens that are currently not locked and available for public transactions.
Cold Wallet
Wallets that are offline and require physical access to certain devices (eg. hardware wallet, paper wallets)
51% Attack
An attack on blockchain by a group of miners controlling more than 50% of network hash rate
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