github.com/fff-chain/go-fff@v0.0.0-20220726032732-1c84420b8a99/cmd/evm/testdata/4/readme.md (about)

     1  These files examplify a transition where a transaction (excuted on block 5) requests
     2  the blockhash for block `4`, but where the hash for that block is missing. 
     3  It's expected that executing these should cause `exit` with errorcode `4`.