US Patent 11403348 Conflict-free version control

An example operation may include one or more of receiving, by a document processor node, a file with a document identifier (ID), generating, by the document processor node, a hash of the file, submitting, by the document processor node, a blockchain transaction containing the hash of the file, the document ID and a locator of a document, assigning, by the document processor node, document access permissions to participating nodes, and notifying the participating nodes of a version of the document under the ID.