ERC-404
0.00%
−0.00%24h Change
7d Change
| 7d Chart | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
2587 PANDORA 2587Pandora | $82.12 | −0.45% | −3.08% | −14.22% | $821,200.00 | $821,200.00 | $6.34 | |||
4071 DEFROGS 4071DeFrogs | $17.56 | 0.70% | −4.88% | −17.88% | $175,600.00 | $175,600.00 | $5.72 |
Frequently Asked Questions
What is the ERC-404 token standard?
ERC-404 is an experimental, unofficial token format that fuses ERC-20 fungibility with ERC-721 NFT semantics into a single "semi-fungible" contract. ERC-404 lets one whole token behave as an NFT while fractional balances trade like a normal ERC-20, giving otherwise-illiquid NFTs native liquidity on a decentralized exchange (DEX). Pandora Labs launched the first ERC-404 implementation in February 2024.
Why is ERC-404 called "404"?
The "404" name deliberately echoes the HTTP "not found" code, signalling an unassigned, experimental design — not a bare "404" web error. Pandora Labs confirms the name mirrors the HTTP "not found" convention to flag that ERC-404 carries no assigned standard number.
Who created ERC-404 and when?
Pandora Labs launched the first ERC-404 implementation in February 2024. Pandora (PANDORA) remains the reference implementation of the mint-on-buy/burn-on-sell mechanic.
Is ERC-404 an official Ethereum standard?
No. ERC-404 was never submitted through or ratified by Ethereum's formal EIP process, so ERC-404 carries no audit-by-standard and elevated smart-contract risk versus ratified standards like ERC-20. Pandora Labs confirms the "404" name deliberately mirrors the HTTP "not found" convention to signal an experimental design rather than an assigned standard number. Treat the ERC-404 token standard as experimental infrastructure, not a settled or formally reviewed specification.
How does the ERC-404 mint-on-buy/burn-on-sell mechanic work?
ERC-404 mints or redeems an NFT when a buyer acquires one whole token unit, and burns that NFT when the unit is sold; fractional balances carry no NFT. This mint-on-buy/burn-on-sell design gives NFTs native fractional ownership and DEX-tradability without external wrappers or fractionalization protocols. Pandora (PANDORA) is the reference implementation of the mechanic. Early ERC-404 contracts were gas-heavy and had wallet and marketplace compatibility gaps — a core critique of the format.
Which projects use the ERC-404 token standard?
DropsTab tracks a handful of early ERC-404 projects: Pandora (PANDORA), the February 2024 pioneer; DeFrogs (DEFROGS), a frog-themed PFP collection with fractional DEX liquidity; Crystal_404 (CRYSTAL); and Rugged Art (RUG). These ERC-404 projects are predominantly speculative rather than utility-driven, with liquidity concentrated on DEXs and exposure to sharp drawdowns. Compare the tracked set side by side on the DropsTab category scanner. Duplicate-looking tickers like RUG and CRYSTAL are disambiguated by project name, not symbol.
What are the risks of ERC-404 tokens?
As an unratified format, ERC-404 carries no audit-by-standard and elevated smart-contract risk versus ratified standards like ERC-20. Early ERC-404 contracts were gas-heavy with wallet and marketplace compatibility gaps. Tracked ERC-404 projects are predominantly speculative rather than utility-driven, with liquidity concentrated on DEXs and exposure to sharp drawdowns.