Blockchain-based system and method for purchase document transformation and accountability

A blockchain-based method for purchase document transformation and accountability, comprising:

• maintaining a set offer documents for a real estate transaction in a database;
• performing a review of the documents in the set comprising comparing populated fields of each document with predetermined offer compliance guidelines via compliance logic;
• when the fields of the offer document set comply with the predetermined offer compliance guidelines, compiling the offer documents as an offer for the transaction;
• and
• recording public documents and private documents from the offer documents as separate data blocks, further comprising:
• providing each data block to a tier of supernodes;
• adding each data block to a ledger of transactions via one of the supernodes;
• storing a copy of each data block on each of the supernodes;
• transmitting an immutable record of each data block from the supernode to a tier of network nodes;
• and
• committing the immutable record of each data block to a blockchain via each of the network nodes in the tier.