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The Ethereum should only accept 27/28 for signature based on the whitepaper, instead of [27,28,29,30]
reference:
![image](https://private-user-images.githubusercontent.com/54246419/358866592-01fd6430-6637-4bf4-9dce-7e55af866c62.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.2ZZdfUKWX7EQy-Fzcru_vSwqftsXoYHdbTrqfjgGB3Q)
ethereum/yellowpaper#860
https://ethereum.github.io/yellowpaper/paper.pdf