Blockchain tokens are digital assets created on a blockchain, which is a decentralized and secure digital ledger. These tokens can represent various forms of value, such as currency, assets, or even access to services. They are often used in cryptocurrencies like Bitcoin and Ethereum, where they facilitate transactions and enable users to participate in the network. Tokens can be categorized into two main types: fungible tokens, which are interchangeable and have the same value (like Bitcoin), and non-fungible tokens (NFTs), which are unique and represent ownership of specific items or content. This versatility makes tokens valuable in various applications, including finance, gaming, and digital art.