Definition ∞ Log-based transaction processing is a method of recording and managing transactions where each operation is sequentially appended to an immutable log or ledger. This approach ensures a complete, verifiable history of all state changes, allowing for auditing and recovery. In distributed ledger technologies, this log is often replicated across multiple nodes, forming the basis of the shared, tamper-evident record. It provides a chronological and transparent record of all events.
Context ∞ Log-based transaction processing is fundamental to how blockchains and other distributed ledgers operate, often discussed in news concerning data integrity, auditability, and the underlying mechanics of digital asset systems. Its inherent immutability is a key security feature, preventing retrospective alteration of transaction histories. Debates occasionally touch upon the efficiency of log storage, data retrieval, and the implications for privacy when all transactions are publicly recorded, influencing the design of new ledger technologies.
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