EIP-3651: Warm COINBASE


  Ethereum Improvement Proposals
        
        
          
            
              
            
          
        

        AllCoreNetworkingInterfaceERCMetaInformational

      



      
        
  
    

  
    
    
    
    
    
      Standards Track: Core
    
  
  
    
      EIP-3651: Warm COINBASE
    
    
      
        
      
    
    
      
        
      
    
  

  Starts the `COINBASE` address warm

  	Authors	William Morriss (@wjmelements)
	Created	2021-07-12
	Requires	

  EIP-2929




  


  

  
    Table of Contents

    	Abstract
	Motivation
	Specification
	Rationale
	Backwards Compatibility
	Security Considerations
	Copyright



  


  
      
      
         Abstract
      
      
    


The COINBASE address shall be warm at the start of transaction execution, in accordance with the actual cost of reading that account.

  
    
      
      
         Motivation
      
      
    


Direct COINBASE payments are becoming increasingly popular because they allow conditional payments, which provide benefits such as implicit cancellation of transactions that would revert.
But accessing 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.

  
    
      
      
         Specification
      
      
    


At the start of transaction execution, accessed_addresses shall be initialized to also include the address returned by COINBASE (0x41).

  
    
      
      
         Rationale
      
      
    


The addresses currently initialized warm are the addresses that should already be loaded at the start of transaction validation.
The ORIGIN address is always loaded to check its balance against the gas limit and the gas price.
The tx.to address is always loaded to begin execution.
The COINBASE address should also be always be loaded because it receives the block reward and the transaction fees.

  
    
      
      
         Backwards Compatibility
      
      
    


There are no known backward compatibility issues presented by this change.

  
    
      
      
         Security Considerations
      
      
    


There are no known security considerations introduced by this change.

  
    
      
      
         Copyright
      
      
    


Copyright and related rights waived via CC0.


  Citation

  Please cite this document as:

  
  William Morriss (@wjmelements), "EIP-3651: Warm COINBASE," Ethereum Improvement Proposals, no. 3651, July 2021. [Online serial]. Available: https://eips.ethereum.org/EIPS/eip-3651.






      
    
  

  

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