COINBASE address shall be warm at the start of transaction execution, in accordance with the actual cost of reading that account.
COINBASE payments are becoming increasingly popular because they allow conditional payments, which provide benefits such as implicit cancellation of transactions that would revert.
COINBASE is overpriced; the address is initially cold under the access list framework introduced in EIP-2929.
This gas cost mismatch can incentivize alternative payments besides ETH, such as ERC-20, but ETH should be the primary means of paying for transactions on Ethereum.
At the start of transaction execution,
accessed_addresses shall be initialized to also include the address returned by
The addresses currently initialized warm are the addresses that should already be loaded at the start of transaction validation.
ORIGIN address is always loaded to check its balance against the gas limit and the gas price.
tx.to address is always loaded to begin execution.
COINBASE address should also be always be loaded because it receives the block reward and the transaction fees.
There are no known backward compatibility issues presented by this change.
There are no known security considerations introduced by this change.
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