Blockchain and cryptocurrencies are becoming important tools for a new kind of computational economy, smart contracts, distributed consensus and applications. Version 12 provides easy and intuitive reading and writing access to blockchains. Easily extract the data, get computable information and use it for the full range of applications, including analysis, statistics, data mining, machine learning and education. Be at the forefront of blockchain technology with the power of the Wolfram Language and its built-in natural language and knowledgebase capabilities.