Ethereum Token Standards
Token Standards are defined as the subsets of Smart Contract standards. For Blockchain supporting smart contracts, token standards generally depict how to create an issue, and deploy new tokens based on their underlying Blockchain. In the present scenario, Ethereum is the most commonly used Blockchain to develop Smart Contracts.
What are Ethereum Token Standards?
Ethereum Request for Comment (ERC) depicts application-level blueprints and conventions in Ethereum. These token standards include the rules that Ethereum-based tokens must comply with. Popular ERC standards describe a required set of functions for a token type, enabling the applications and smart contracts to interact with them predictably.
Let’s dive in to explore some popular ERC standards:
ERC20 is the most popularly used token standard on Ethereum. It depicts a technical standard for tokens on Ethereum, offering a list of rules for all Ethereum-based tokens. The ERC20 token is a simple interface that enables creating tokens on Ethereum that can be reused by applications like Defi.
ERC20 token standard defines the fungible tokens while the ERC721 token standard depicts the non-fungible tokens on Ethereum Blockchain. NFT or non-fungible tokens have unique characteristics differentiating them from one another making them a medium to represent collectibles, games, digital arts, domain names, etc. The ERC721 token standard depicts the minimum interface a smart contract will implement to enable crypto collectibles to be owned, managed, and traded.
ERC777 addresses the limitations of ERC20 while being backward compatible. It defines the advanced features for interacting with the tokens like sending/ receiving tokens on behalf of another address. It enables users to reject the incoming tokens from backlisted users.
ERC20 and ERC721 token standards require a separate contract to be deployed for each type of token. ERC1155 token standard is used to deploy contracts that can manage multiple token types (ERC20, ERC721) at once ensuring cost-effective transactions. Trading multiple tokens can be implemented through this contract and it eliminates the need for approving individual tokens separately.
ERC2981 is a standard way to retrieve information on royalty payments for NFTs (Non-fungible Tokens) enabling universal support for royalties across NFT Marketplaces. It enables ERC721 and ERC1155 interfaces, to signal a royalty amount, a NFT Creator is paid for every sale of that NFT.
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