Private Blockchains

Definition ∞ Private blockchains are distributed ledger networks where access and participation are restricted to a select group of authorized entities. Unlike public blockchains, which are open to anyone, private versions require permission to read, write, or validate transactions. They typically offer higher transaction speeds and more granular control over data visibility. These systems are often deployed by consortia or individual enterprises.
Context ∞ Private blockchains are frequently discussed in the context of enterprise applications where confidentiality and controlled access are paramount. News often covers their use cases in supply chain management, interbank settlements, and secure data sharing among business partners. While offering efficiency advantages, debates persist regarding their decentralization level and censorship resistance compared to public networks.