ERC-20 Token Standard Explained

When working with ERC-20, the most widely used token standard on the Ethereum blockchain that defines how tokens interact with wallets, exchanges and other contracts. Also known as Ethereum token standard, it enables developers to create interchangeable assets without reinventing the wheel. The standard sets six mandatory functions – balance lookup, transfer, allowance, and three events – that guarantee basic token behavior. Because ERC-20 tokens share a common interface, wallets can display them, DEXs can list them, and DeFi protocols can use them instantly. In short, ERC-20 encompasses token standards, requires smart contracts, and lives on the Ethereum network.

Key Building Blocks Around ERC-20

Understanding ERC-20 means looking at smart contracts, self‑executing code on the blockchain that enforces the token rules set by the ERC‑20 spec. Smart contracts drive token creation, transfers, and approvals, making them the engine behind every ERC‑20 transaction. Tokenomics, the economic design of a token including supply, distribution and utility, shapes how an ERC‑20 token is valued and used in DeFi, gaming or airdrop campaigns. Airdrops, for example, rely on ERC‑20 to sprinkle free tokens to eligible wallets, boosting community growth and liquidity. Meanwhile, exchange platforms like KoinBay, Bitfinex or Huobi Korea evaluate ERC‑20 compliance before listing, because a standard token reduces integration risk and simplifies fee calculations. All these pieces—smart contracts, tokenomics, airdrops and exchange reviews—interact to form a vibrant ERC‑20 ecosystem.

Below you’ll find a curated collection of articles that dive deep into each of these angles. From a step‑by‑step guide on claiming the SAKE airdrop to in‑depth reviews of KoinBay, Bitfinex and RuDEX, we cover practical how‑tos, regulatory updates and security insights. Whether you’re a developer sketching a new token, a trader hunting the next airdrop, or a regulator tracking blockchain compliance, the posts here give you the context and tools you need to navigate the ERC‑20 world with confidence.