Permissioned ledgers are databases where access is restricted. Unlike permissionless blockchains where anyone can participate, permissioned ledgers require that the participants undergo a verification process and obtain consent to join and interact with the network. This ensures that only trusted entities can access or change the data, allowing for more control over the ledger's integrity and confidentiality. Companies and organizations often use permissioned ledgers to maintain private records, share data securely among stakeholders, and enforce stricter regulatory compliance.