以太坊笔记

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交易树和收据树

bloom filter 是块头的一个域

bloom filter 快速过滤掉不符合条件的区块

以太坊：transaction-driven state machine

（比特币的状态机是 utxo）

权益证明

Proof of stake

virtual mining

AltCoin Infanticide

Proof of Deposit

nothing of stake

Casper the Friendly Finality Gadget (FFG)

Validator 2/3

100 epoch -> 50 epoch，连续两个 epoch 有 2/3 通过

EOS

DPOS: Delegated Proof of Stake