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Casper FFG

Last updated Aug 9, 2022 Edit Source

Partial consensus mechanism is an overlay on top of proposal mechanisms to finalize blocks (selecting a unique chain that represents the canonical history of the chain)

It enables:

  1. an accountability mechanism so that Byzantine validators can be penalized.
  2. support for a dynamic set of validator nodes
  3. additional defences against long range revision attacks

From a foundational perspective, Casper is essentially chained Tendermint

Source Paper