Renamed vMatch variables to more accurately reflect their use. Addresses T361.
So this clearly raise a lot more question than it answer. This seems to be using a soup of TxId and TxHash, yet the type used is always uint256. I suspect that it's neither because this include merkle path. This seems to make thing more confusing rather than anything else.
This is clearly not a mask of transaction ids.
Are these txhash or txid ? Or something plain hashes ? If these are TxId or TxHash, why is that a vector of uint256 then ?