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[虚拟币交流]
穆长春：货币桥区块链是货币桥技术架构核心，底层采用大圣共识（转）
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“我们为货币桥平台搭建了一套技术系统，其核心是一个专门为货币桥开发的区块链：
! D9 d* n- Q$ S& u# T货币桥区块链。”11月2日，天朝人民银行数字货币研究所穆长春在香港科技周货币桥座谈
: A B& W V6 Q8 ?$ u5 L1 p2 C$ J' V6 C: s/ J" u/ [
会上表示，货币桥区块链是货币桥技术架构的核心，支持原子化支付和外汇同步交收业务、
. [, y( M+ B; j1 M3 U2 C4 j6 A5 `. E& N
钱包管理和隐私保护控制等。其底层的货币桥区块链采用了一种拜占庭容错算法——大圣
8 \/ O1 X* \. {. _* W2 Y1 O3 F2 J) I# e9 i6 v, R# d# i
共识，旨在缩短节点间达成共识所需的时间，提高整体协议性能及效率。
5 @* v8 b5 W& s+ w; c8 `# @* y 会上，穆长春还介绍了货币桥的隐私架构设计。货币桥平台实现了对付款方和收款方! N8 I0 F1 F% v* c2 l
$ b) ^# X6 P/ i2 i6 m1 _
身份、交易金额、调用的CBDC合约等核心交易数据的隐私控制。通过由随机生成的密钥对( f1 |) \& i! j, J- e$ \9 \, m
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实现的假名机制，货币桥平台确保对于单笔跨境交易，只有交易对手方及对应的央行/货币
; @" z5 t2 l) L; w& B! z' j& f/ m2 P$ C, c" Y
当局才能了解交易详情。
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去年，天朝人民银行数字货币研究所（下称“数研所”）联合清华大学公开发布了可解决
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. L d6 ^: I6 e9 r共识算法四方难题的区块链大圣（DASHING）协议。经过一年多的发展，大圣协议已在多边
3 P, i U1 y# x* H2 N& M2 C* u7 [! U. d6 ?0 |0 U
央行数字货币桥项目、央行贸易金融区块链平台等金融基础设施上落地应用。8 [& ^; j! @/ D' r% Z
; ~, |" ]2 U5 y0 N @* `: i
多边央行数字货币桥项目旨在尝试利用基于分布式账本技术(DLT)的公共平台进行跨境支付，
2 y, K2 t4 @$ M# E: {- S7 p
8 h$ E' Z% j+ b多家央行可在该平台上发行和交换各自的央行数字货币。该项目由香港金管局、国际清算银行, c( k2 `2 \1 t) b! z. V5 O
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（香港）创新中心、泰国中央银行、天朝人民银行数字货币研究所，以及阿联酋中央银行组成
9 F: M5 o8 f0 g; |7 N+ X
E. d4 w) u; D8 M/ U项目指导委员会，由国际清算银行（香港）创新中心带领，四个小组委员会（技术、法律、政策1 _" F; {/ E+ e2 P; Z
7 m$ E+ i2 j, S& n7 Y* L, s) I
和业务）提供支持。- L' S2 D3 l$ j. \8 s: C+ }
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