Table 2.

The definitions and descriptions of credit-related transaction.

Action	Parameters	Parameter Definitions
Registration	Identity	User information including user id, username, password, icon, and other profiles.
	Asset Address List	A list of user’s digital asset in blockchain
	Asset Type	Identifying the type of user’s digital asset
	User Token	User’s token used in transaction
	User Address	User’s digital address in blockchain
Credit Facility	Identity	User information including user id, username, password, icon, etc.
	Receipt Address	The address of credit receipt in blockchain
	Credit Amount	The credit amount approved to the receipt
	CF Record	The record of a credit-facility transaction.
Credit Inquiry	Identity	The identity information of credit receipt
	CI Record	The transaction details of credit inquiry in a record
	User Address	The address of the credit receipt in blockchain
	CF record	The record of a credit-facility transaction.