This included Barclays, BBVA, Commonwealth Bank of Australia, Credit Suisse, JP Morgan, State Street, Royal Bank of Scotland and UBS. A further 12 joined R3 shortly afterwards including Banco Santander, Danske Bank, Sumitomo Mitsui Banking Corporation and Westpac, and use cases are now underway – for example, RBS is now sending mortgage receipts to the Financial Conduct Authority via the R3 Corda blockchain.