Visa Inc.
Optimizations for verification of interactions system and method

Abstract:

The method comprises a client device receiving a verification request comprising an interaction identifier. The client device can compare samplings of block headers received from two or more full nodes. The client device can then, based on the comparing, verify at least one block header of the samplings of block headers. The client device can determine that a blockchain maintained by at least one of the two or more full nodes is valid in response to verifying the at least one block header of the samplings of block headers.