Public Blockchain Networks

Definition ∞ Public blockchain networks are decentralized, permissionless ledgers where anyone can participate, submit transactions, and verify the network’s state. These networks operate transparently, with all transactions publicly visible and verifiable by any participant. They are secured by cryptographic consensus mechanisms, such as Proof of Work or Proof of Stake, ensuring data integrity and resistance to censorship. Bitcoin and Ethereum are prominent examples, forming the foundation for many digital assets and decentralized applications.
Context ∞ Public blockchain networks remain the foundational infrastructure for the vast majority of digital assets and decentralized finance, consistently featured in technology news. Debates often focus on their scalability solutions, energy consumption, and the ongoing efforts to enhance transaction throughput and reduce fees. Regulatory bodies are also grappling with how to oversee activities on these open, global systems, balancing innovation with the need for consumer protection and financial stability.