What are the country-specific cryptocurrency prices on Yahoo finance?

I was under the impression that cryptocurrency prices were set by an exchange's currency volume and buy/sell averages, so what exchanges are used to get the Yahoo finance data with country-specific cryptocurrency prices?

There is a note in the footer under the details for BTC-AUD: Data provided by CryptoCompare

On this page: https://au.finance.yahoo.com/quote/BTC-AUD?p=BTC-AUD