In this tutorial we will be looking into the scripting language used by bitcoin. Bitcoin script is a simple forth-like stack based language, basically meaning that it operates using a first-in-last-out principle (FILO) upon a stack based data structure.
Ever wonder how bitcoin nodes talk to each other? Well, in this tutorial we'll be covering the raw details behind the TCP based bitcoin wire protocol, which could be considered lesser known than the more popular RPC interface.
This tutorial is written to simplify the understanding of how bitcoin uses merkle trees for verification of transaction into a block. A merkle root is created by hashing together pairs of TXIDs, which gives you a short yet unique fingerprint for all the transactions in a block.