If we just know the Merkle root and the data block and we want to know this block is a member of this merkle tree. We need to know all the blocks from the leaf to the root that are associated with data block and we ignore the rest.
But how and whats the point of this?.
If the system is doing so much work finding the blocks associated with this data block we have.It might as well directly do a simple search and find out whether the given data block exists in the first place.
This is becomes even confusing when we use a sorted merkle tree for proof of non-membership. Please explain me what's the concept and what's going on in these two proofs