Chain Mail: Newsletter Correspondence on Bitcoin and Blockchain Tech is a compilation of pre-published newsletters for readers who want to learn through straightforward and accessible stories. Our goal is to help you understand the nuanced world of Bitcoin and the broader spectrum of digital currencies so that we can all succeed together. From cypherpunk history and hash functions to DeFi and IoT, this collection explores key blockchain topics from the perspectives of two women in crypto. Chain Mail serves as a time capsule for the first decade in cryptocurrency, paying homage to the innovators behind decentralized tech and discussing what it takes for an idea to change the world.