ERC-20 Specifications: The Standard Enabling Ethereum's Token Economy

The ERC-20 standard is the critical technical specification that ensures all tokens on Ethereum function consistently and remain interoperable with wallets, exchanges, and DeFi protocols. Without this standardization, tokens would be incompatible silos, making decentralized finance impractical. For developers and users alike, understanding ERC-20 is fundamental to how blockchain tokens operate across the entire Ethereum ecosystem.