---
title: "Understanding Seed Phrases (PDF)"
url: "https://bip39-phrase.com/list-phrase/seed-phrase-understanding-june-09-2025/"
language: "en"
updated: "2025-06-09T00:00:00+00:00"
---

# Understanding Seed Phrases

A seed phrase is a series of words generated by your cryptocurrency wallet that gives you access to the crypto associated with it.

PDF document · Published June 9, 2025 

[ Open the PDF (8 pages, 188 KB) ](/list-phrase/seed-phrase-understanding%5Fjune-09-2025.pdf) 

Keywords: 

seed phrase · crypto wallet · blockchain · private key · cryptocurrency · security · backup · recovery · Bitcoin · Ethereum

Topic: 

[Seed Phrases: Creating, Storing and Protecting Them](/topics/seed-phrases/)

## Guides on the same subject

- [What Is a Seed Phrase? How a Recovery Phrase Works](/recovery-seed-phrase-guide/)  
A seed phrase is 12 to 24 BIP39 words that encode your wallet's random secret. See how the words become your keys and why they are your only backup.
- [Seed Phrase Formats by Network: BIP39 and the Exceptions](/seed-phrase-formats-by-network/)  
Bitcoin, Ethereum, Solana and Cosmos use BIP39 seeds, Cardano and Polkadot derive their own keys from BIP39 words, and Monero, TON and XRP use other formats.
- [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.

One of the documents in the [Seed Phrase PDF Archive](/list-phrase/), listed on [archive page 4](/list-phrase/4/).