Foundations of Blockchain

Publishing the document

The owner of a document who wants to prove its existence at a specific time can upload the document to the Proof of Existence application. The owner can add additional information that needs to be retained along with the document, such as a document description, size, and user details. The user-facing part of the application will then accept this data along with the document. A digest of the document is then created using a hashing algorithm to uniquely identify the document and represent it in a fixed sized identity. The document information, along with the digest, will be sent to the web interface of the blockchain application.

The web interface of the blockchain application performs a specific operation on the MultiChain ...