This section deals with market data and reference data. Along with transaction specific data this data is the starting point for many processes; automatic matching, bidding opportunities, daily marking and P&L, risk analytics etc. 

The term oracle has been used for the integration of such valid and secure data sources to the DLTs.

Market data is a collective term, which is an outfall of transaction data from other deals that are done in the market, prices marked at the end of the day etc. Usually exchanges publish it for a cost. Sometimes  

There have been moves to create a consolidated tape for  and also global tape...