What is GLYPHS?
GLYPHS is a fixed-supply collection of 1500 hybrid tokens on Ethereum mainnet. Each token is simultaneously a fungible $GLYPH ERC-20 and a unique pixel-art PFP NFT. The art is generated by a Solidity contract on chain — there is no IPFS, Arweave, or off-chain server.
The ERC404 pattern
ERC404 is an experimental, unofficial token standard introduced by Pandora Labs (0xacme) in February 2024. It binds an ERC-20 balance to an ERC-721 inventory inside a single contract: every whole unit you hold is also an NFT in your wallet.
When 1 token crosses a wallet boundary via an ERC-20 transfer, the sender's NFT is burned and a fresh one is minted to the receiver. ID banking and burn/remint behavior vary by implementation. We use the burn-and-remint approach because it doubles as a re-roll mechanic: trading regenerates the art with fresh entropy from block.prevrandao.
ERC404 is not recognized by the Ethereum Foundation. It has no formal EIP. It is an open-source MIT-licensed pattern that anyone can implement. Pandora Labs maintains the reference repo. We adapted the pattern; we are not affiliated with Pandora Labs.
The art
Each glyph is a 24×24 pixel half-body PFP rendered as SVG. The renderer is a separate Solidity contract that returns SVG strings based on a 256-bit seed (derived from your address, the block, and the token ID at mint).
13 trait categories combine to give >100M possible variants:
- Type · 3 options (Male, Female, Bald)
- Background · 8 colors × 4 patterns
- Skin · 6 tones
- Hair style · 8 options × 6 colors
- Eyes · 6 styles (incl. shades, VR goggles, laser)
- Mouth · 6 styles
- Clothes · 6 styles × 8 colors
- Hat · 5 (incl. crown, cowboy)
- Accessory · 4
- FX overlay · 4 (Rare+ only)
Tokenomics
| Total supply | 1,500 $GLYPH (fixed forever) |
| Public mint allocation | 800 (200 mint txs × 4 each) |
| Deployer reserve | 700 (for Uniswap LP) |
| Mint price | 0.05 ETH = 4 GLYPHS |
| Per-NFT effective price | 0.0125 ETH |
| Team allocation | 0 |
| Vesting | none |
| Inflation | none — supply cannot increase |
Roadmap
This is a one-shot drop. There is no roadmap of future utility, no token emissions, no airdrops, no staking. Once 800 sells out and the Uniswap LP is seeded, the project is "complete" from the founder side. The art and token live on chain forever, freely tradable.
Risks
- Unaudited. The contract has not been formally audited by a third party. We pass 13 internal test cases but bugs may exist.
- Experimental standard. ERC404 is not an official Ethereum standard. Some wallets, marketplaces, or aggregators may not display $GLYPH or its NFTs correctly.
- Volatile. ERC404 tokens have shown extreme price volatility historically. Do not buy more than you can lose.
- Gas costs. Each transfer triggers NFT burn + remint logic, which costs ~5-10× a normal ERC-20 transfer. Trading on Uniswap is expensive.
- No utility promises. The token has no built-in revenue share, governance, or future utility. If it has value, the value comes from collector demand for the art and the token.