github.com/theQRL/go-zond@v0.2.1/cmd/zvm/testdata/4/readme.md (about)

     1  These files exemplify a transition where a transaction (executed 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`.