Alta, which is building blockchain infrastructure for banks and payment companies, raised a $47.5M Series A, bringing its total funding to $80M (Kyle Baird/The Block)

Kyle Baird / The Block: Alta, which is building blockchain infrastructure for banks and payment companies, raised a $47.5M Series A, bringing its total funding to $80M  —  Index Ventures led the round, bringing Alta's total funding to $80 million as it builds a blockchain for financial firms.  —  Make us preferred