Hash operations on large computer files can be relatively slow, but are needed to ensure accurate computer file transmission. The present disclosure covers a system and method to accelerate the process of making hash verified network copies of digital assets (computer files), and is particularly useful in handing computer files that were previously unknown to the file system (e.g. no prior hash values were computed). The system operates by analyzing the computer file into smaller parts, each with a part-offset relative to the parts' position in the original computer file, and generating the hash of the parts simultaneously with the entire computer file hash. The system can commence various network write operations when only a single part hash is available and does not need to wait for a complete computer file hash to be computed. This enables the burden of file transfers to be handled by multiple network peer computers.