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Proof-of-authority PoA is an algorithm used with blockchains that delivers comparatively fast transactions through a consensus mechanism based on identity as a stake. In PoA-based networks, transactions and blocks are validated by approved accounts, known as validators. The process is automated and does not require validators to be constantly monitoring their computers. It, however, does require maintaining the computer the authority node  uncompromised.
With PoA individuals earn the right to become validators, so there is an incentive to retain the position that they have gained. By attaching a reputation to identity, validators are incentivized to uphold the transaction process, as they do not wish to have their identities attached to a negative reputation.
This is considered more robust than PoS, as:. On the other hand, PoA only allows non-consecutive block approval from anyone validator, meaning that the risk of serious damage is minimized. PoA is suited for private networks and for public networks, like POA Network, where trust is distributed. From Wikipedia, the free encyclopedia. This article has multiple issues.
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