The "medium" fixture contained missing nodes somewhere in the head block, so I've removed, and generated a new "small2" fixture. Also refactored a bit. Reviewed-on: #3
Reviewed-on: #2
PR for tracking this new repo used to support refactors. Used in - cerc-io/plugeth-statediff#11 - cerc-io/eth-iterator-utils#1 Reviewed-on: #1