github.com/jimmyx0x/go-ethereum@v1.10.28/cmd/evm/testdata/19/readme.md (about)

     1  ## Difficulty calculation
     2  
     3  This test shows how the `evm t8n` can be used to calculate the (ethash) difficulty, if none is provided by the caller, 
     4  this time on `GrayGlacier` (Eip 5133).
     5  
     6  Calculating it (with an empty set of txs) using `GrayGlacier` rules (and no provided unclehash for the parent block):
     7  ```
     8  [user@work evm]$ ./evm t8n --input.alloc=./testdata/19/alloc.json --input.txs=./testdata/19/txs.json --input.env=./testdata/19/env.json --output.result=stdout --state.fork=GrayGlacier
     9  ```