Sorry, but I am going to be critical here. A blockchain is not a distributed ledger. It's a special type of chained list: a data structure. Distributed ledgers do not enforce this: Creates an immutable trail This is the consensus protocol that enables the immutability. Having a distributed ledger without consensus protocol is useless in essence. Also Greater security (via cryptography) exactly it is thanks to cryptography and the consensus protocol as well that we have security. Not the distributed ledger.
