欧洲央行分布式账本技术报告.pdf

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欧洲央行分布式账本技术报告.pdf

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Occasional Paper Series Andrea Pinna Distributed ledger technologies in Wiebe Ruttenberg securities post-trading Revolution or evolution? No 172 / April 2016 Note: This Occasional Paper should not be reported as representing the views of the European Central Bank (ECB). The views expressed are those of the authors and do not necessarily reflect those of the ECB Contents Abstract 2 Executive summary 3 1 Introduction 6 2 Distributed ledger technologies (DLTs) and their specifications 8 2.1 What are DLTs and why their specifications matter 8 2.2 Unrestricted versus restricted DLTs 10 2.3 Validation methods 12 2.4 Blockchain as a database structure 15 2.5 Consensus ledgers 17 2.6 Smart contracts 18 3 The current post-trade landscape 19 4 DLTs and the future of post-trading in securities markets 22 4.1 Potential impact of DLTs in different layers of post-trading 22 4.2 Governance of distributed ledgers 27 4.3 Overall impact of different levels of implem