3.1 Blockchain in Finance - Public Chain, Private Chain and Consortium Chain+ 3.2 Blockchain in Finance - Blockchain + Insurance+ 3.3 Blockchain in Finance - Blockchain + Financial Leasing+ 3.4 Blockchain in Finance - Blockchain + Securities+ 4.1 Artificial Intelligence in Finance - Development Trend of Artificial Intelli+ 4.3 Artificial Intelligence in Finance - Application of Artificial Intelligence in the Financial Fie+ 4.3 Artificial Intelligence in Finance-Application of Artificial Intelligence in the Financial Field+ 4.4 Typical cases of Artificial Intelligence in the Financial Field+