International Business Machines Corporation
DOCUMENT STORAGE AND VERIFICATION

Abstract:

An example operation may include one or more of determining, by a document server node, a version of a source document received from a user node, assigning, by the document server node, an identifier (ID) corresponding to the version of the source document, forming, by the document server node, a source document token comprising a hash of the source document, the version of the source document and the ID, and executing, by the document server node, a transaction to record the source document token on a blockchain.