US Patent 11275859 Preservation of privacy in large datasets

An example operation may include one or more of receiving, by a blockchain node, a file as a part of a blockchain transaction, splitting, by the blockchain node, the file into a plurality of chunks based on a file size, transmitting, by the blockchain node, the plurality of the chunks to at least one peer-to-peer data store node on a blockchain network, and generating a storage plan based on locations of individual chunks of the plurality of the chunks on the at least one peer-to-peer data store node.