A system for validating the integrity of blockchain transactions prior to such transactions being added to the electronic blockchain using, in part, an automated, protocol-based methodology is disclosed. Use of such a system circumvents current costly consensus mechanisms for validating transactions prior to inclusion onto the underlying electronic blockchain. In a preferred embodiment, the disclosed system may be implemented within blockchain environments where the transacting parties “trust” each other where trust may be evidenced in different ways. In such an example, the system provides an automated, protocol-based validation of transactions that have been approved by the transacting parties, such that record of the validated transaction may be appended to a blockchain.