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=== GRANDPA and Casper FFG === The two main differences between GRANDPA and Casper FFG are:

*From this [https://medium.com/polkadot-network/grandpa-block-finality-in-polkadot-an-introduction-part-1-d08a24a021b5#:~:text=That ...ill take ahead of time. However, finality gadgets such as [[Polkadot (DOT)|GRANDPA]] (GHOST-based Recursive ANcestor Deriving Prefix Agreement) or [[Ethereum

== Comparison and contrast between Snowball with GRANDPA == ...onse with that in mind. I am skimming [https://medium.com/polkadot-network/grandpa-block-finality-in-polkadot-an-introduction-part-1-d08a24a021b5 this article

''"Avail uses the Grandpa + Babe Consensus inherited from [[Polkadot (DOT)|Polkadot]] SDK, which has

# ''The POC-3 testnet launched January 2019 and includes the GRANDPA [[Consensus Algorithm|consensus algorithm]].'' === BABE/GRANDPA ===