There is an old (2016, pre-Ethereum large adoption) book from Princeton, Bitcoin and Cryptocurrency Technologies: A Comprehensive Introduction [1]. I find it g

There is an old (2016, pre-Ethereum large adoption) book from Princeton, Bitcoin and Cryptocurrency Technologies: A Comprehensive Introduction [1]. I find it good for the fundamentals. There is a corresponding Coursera class but I found that class a bit long-winded. [1] https://www.amazon.com/gp/product/0691171696/ https://www.amazon.com/gp/product/0691171696/