---
title: "ERC-404 Tokens (PDF)"
url: "https://bip39-phrase.com/list-phrase/erc-404-tokens-2025-11-30/"
language: "en"
updated: "2026-10-23T00:00:00+00:00"
---

# ERC-404 Tokens

ERC-404 is an experimental protocol that brings fungibility to non-fungible tokens by combining aspects of ERC-721 and ERC-20 tokens.

PDF document · Published November 30, 2025 · Updated October 23, 2026 

[ Open the PDF (4 pages, 73 KB) ](/list-phrase/erc-404-tokens-2025-11-30-en.pdf) 

## Contents

1. Sample sequences of BIP39 words
2. Reading a BIP39 phrase
3. See also

Keywords: 

erc-404

Topic: 

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

## Guides on the same subject

- [OpenAI API Key Format: sk-proj, sk-svcacct and sk-admin](/openai-api-key-format/)  
An OpenAI API key starts with sk-proj- (project), sk-svcacct- (service account) or sk-admin- (admin) and is sent as a bearer token. How to check and store one.
- [Custodial vs Non-Custodial Wallet: Differences and How to Choose](/custodial-vs-non-custodial-wallet/)  
A custodial wallet means a company holds your private keys; a non-custodial wallet leaves them with you. How they differ on recovery, KYC, freezes and fees.
- [Which Wallets Let You Hold Your Own Seed Phrase and Keys?](/what-type-of-wallet-manage-seed-phrase-private-key-yourself/)  
Non-custodial wallets give you the seed phrase: most hardware, mobile, desktop and extension wallets show one at setup, while exchange accounts never do.

One of the documents in the [Seed Phrase PDF Archive](/list-phrase/), listed on [archive page 8](/list-phrase/8/).