Patent attributes
A closed-loop system is operatively connected with a block chain distributed network for using the block chain distributed network for facilitating operation of a transaction record sharing system between member institutions comprising a host system and a source system. Host and source institutions function to share the transaction records from member institutions such that a host institution that is a member of the block chain may obtain the transaction records of all source institutions of the block chain. The transaction records are validated on the block chain such that the transaction records are secure represent a source of truth.