Few inventions have packed as much technical brilliance, social energy, and disruptive potential into a single idea as the blockchain-based token.
Token Basics and Origins
From Colored Coins to Today’s Multichain Reality
The earliest token experiments started in 2012 with Bitcoin “colored-coins,” small metadata overlays that tracked assets on the original chain; by 2015 Ethereum’s programmable smart contracts turned the experiment into a global playground, and today virtually every high-performance layer-1 or layer-2 network—Solana, BNB Smart Chain, Polygon, Avalanche, Sui, TON, and many more—supports its own rich token standard suite.
[Insert Image: timeline illustration showing the evolution from colored coins to ERC-20 and beyond]
Milestone Standards at a Glance
Year
Standard
Chain of Origin
Key Innovation
2015
ERC-20
Ethereum
First fungible token interface; balances stored in contract mappings
2017
ERC-721
Ethereum
NFTs—unique IDs and ownerOf() mapping
201
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