In the context of blockchain and cryptocurrencies, pseudonymous transactions allow users to transact without revealing their true identity. Each user is represented by a cryptographic address instead of a personal identifier. While the transaction details are recorded on a public ledger, such as the blockchain, identifying the actual user behind the address can be complex. This provides a layer of privacy, though it is important to note that pseudonymous does not mean anonymous; with enough data and research, entities can track and link transactions back to users.