Definition ∞ Point queries refer to the specific retrieval of a single data element from a larger dataset based on an exact identifier or address. In databases or data structures, a point query seeks to locate and return the value associated with a unique key. This is a fundamental operation for accessing individual pieces of information.
Context ∞ Within blockchain and decentralized data systems, point queries relate to accessing specific transaction details, account balances, or smart contract states. While traditional blockchains typically make all data public, the efficiency and privacy of such queries are important considerations for scaling solutions and zero-knowledge protocols. News often covers methods to perform these queries efficiently and privately, especially in the context of private information retrieval schemes.
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