Un fungible token It's like a digital currency: they are all worth the same and you can change them with each other without noticing the difference. If you have 1 token and someone else gives you another one just like it, it's as if nothing changed. They are used for payments, exchanges or representing value, just like physical coins or banknotes.

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Un fungible token It is a type of digital asset issued on blockchain, whose units are interchangeable, divisible and homogeneous, that is, each token has the same value, properties and function as another of the same type. This feature makes it the ideal representation for coins, points, credits, stablecoins and digitized financial assets, allowing its use in payments, exchanges, governance and internal functions of Web3 protocols.

Fungibility is essential so that tokens can be used as efficient medium of exchange, since there is no need to distinguish between individual tokens. For example, an ERC-20 token such as USDT, DAI, or LINK allows a user to transfer any unit without worrying about its specific origin or history.

Technically, fungible tokens are usually implemented using standards such as:

• ERC-20 on compatible Ethereum and EVM.
• BEP-20 on BNB Chain.
• SPL at Solana.
  These standards define functions such as Transfer, Balance of, Approve and TransferFrom, which guarantees its interoperability with wallets, exchanges, DeFi platforms and smart contracts.

In addition, fungible tokens can represent:

• Cryptocurrencies owned by a network (e.g. ETH, MATIC, SOL).
• Stablecoins linked to real assets (e.g. USDC, EURC).
• Rights of Use or Participation, such as governance tokens.
• Tokenized assets, such as gold, energy or fractional business shares.

Its design must take into account principles of Tokenomics, legal regulation, liquidity, and usage model within the ecosystem, since their behavior can directly affect the viability of a decentralized protocol or product.

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