---
title: "Ethereum and Smart Contracts Explained (PDF)"
url: "https://bip39-phrase.com/list-phrase/ethereum-and-smart-contracts-explained-2026-04-23/"
language: "en"
updated: "2026-04-23T00:00:00+00:00"
---

# Ethereum and Smart Contracts Explained

Ethereum is a programmable blockchain platform that uses smart contracts — self-executing code-based agreements — to enable decentralized applications, finance, and digital ownership without the need for intermediaries.

PDF document · Published April 23, 2026 

[ Open the PDF (8 pages, 46 KB) ](/list-phrase/ethereum-and-smart-contracts-explained-2026-04-23-en.pdf) 

Keywords: 

smart contracts · blockchain · decentralized applications · Ether

Topic: 

[BIP39 for Developers: Python Code, EVM Contracts and API Keys](/topics/developers/)

## Guides on the same subject

- [Smart Contract EVM: What It Is and How It Works](/smart-contract-evm-what-it-is-and-how-it-works/)  
The EVM is the sandboxed runtime every Ethereum node uses to run smart contracts: bytecode, gas, a Solidity example, real uses and the bugs that drain them.
- [Ethereum Keystore File (JSON Wallet): Structure and Security](/json-wallets-explained/)  
An Ethereum keystore file, or JSON wallet, holds one private key encrypted with a password via scrypt or PBKDF2 and AES-128-CTR. Fields, wallets, Python code.
- [Generate a BIP39 Seed Phrase in Python: Code and Test Vectors](/seed-phrase-generation-using-python/)  
Generate and check BIP39 seed phrases in Python: entropy, checksum, wordlist and PBKDF2 seed, with standard-library code tested against official vectors.

One of the documents in the [Seed Phrase PDF Archive](/list-phrase/), listed on [archive page 10](/list-phrase/10/).