Blockchain startup Propify aims to take on Zillow and

The Australian company is using the tech behind bitcoin for its 'No-Portal' system, which aspires to include property listings, home appraisals, and agent reviews

Blockchain basically refers to a ledger system distributed across participants’ computers, and is how most cryptocurrencies keep track of transactions and ownership. In Propify’s case, the company hopes to use a modified version of the ethereum blockchain it calls QUALIS to permanently provide a more accurate record of everything having to do with real estate sales, CEO Joel Leslie told Inman.