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HIGH PERFORMANCE DISTRIBUTED SYSTEM OF RECORD WITH UNSPENT TRANSACTION OUTPUT (UTXO) DATABASE SNAPSHOT INTEGRITY
HIGH PERFORMANCE DISTRIBUTED SYSTEM OF RECORD WITH UNSPENT TRANSACTION OUTPUT (UTXO) DATABASE SNAPSHOT INTEGRITY
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机译:高性能分布式系统记录与未用来的事务输出(UTXO)数据库快照完整性
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摘要
A method operative in association with a set of transaction handling computing elements that comprise a network core that receive and process transaction requests into an append-only immutable chain of data blocks, wherein a data block is a collection of transactions, and wherein presence of a transaction recorded within a data block is verifiable via a cryptographic hash, and wherein Unspent Transaction Output (UTXO) data structures supporting the immutable chain of data blocks are maintained in a UTXO database, wherein a UXTO is an output from a finalized transaction that contains a value. The technique herein includes periodically snapshotting a given portion of the UTXO database to generate a hash. The hash of the snapshot is recorded within the immutable chain of data blocks, and preferably within a given block header. In responsive to a receipt of a recovery request, and to facilitate recovery of the system to a provably-known state, a consensus algorithm is executed over the UXTO snapshot.
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