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EUTXO Handbook

Official eUTxO Handbook explaining Cardano's Extended UTXO model for smart contracts, deterministic transactions, and blockchain development fundamentals.

Introduction

The eUTxO Handbook is an official educational resource published by IOG through the Essential Cardano platform, explaining Cardano's innovative Extended Unspent Transaction Output model. Created by IOG technical writers Fernando Sanchez and Ivan Irakoze with Japanese translation by Junko Oda, this handbook bridges the gap between Bitcoin's proven UTXO model and Ethereum-style smart contract functionality. The guide provides comprehensive technical insights into how Cardano achieves deterministic smart contract execution while maintaining the security and simplicity advantages of the UTXO architecture.

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