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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：$ g/ I% y; f3 u; a
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
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2 r6 o: T8 s d' f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、8 Q0 G% y# V$ v' ?+ ~1 [( z
/ {4 v$ j8 p; |+ u; ]
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
# L% f/ m, {' B5 E. g- x
/ I9 A5 [; E8 |: g: b3 |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。) l4 j C M1 d B6 l# L% ]* E2 L
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
9 E' ^( k* @9 b+ C6 X. O6 x! Y) G% R, O% j+ t! }# p, O1 z
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* G' s: b, j& A/ t6 ^
3 f: G0 F# M. w" z" f) F6 Q2 a1 Y$ A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
' f* ^0 j+ E! ^; a1 R8 \; H3 z& d/ f% Z, o7 S( f4 O5 E' k" E* K
当局才能了解交易详情。) q1 ?' N+ g! O. A" ?
# D+ _5 U* y) A1 T4 o' Q; A 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$ ^3 f& |7 x2 n/ a
. C; y$ E$ Q l) T- V
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
" U8 j; @# S7 d2 l4 E M$ L+ k) ?. Q& ?4 {9 B; N' ^9 X
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。
% I' P7 t. g6 ?- y' ^9 N: X7 a7 L$ w
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，9 I6 q* S- t G. k" h8 E
. E( R+ h* B! L5 M" {8 ]
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1 c8 G7 `# Z0 s/ }, P* b
, k/ z4 h' V% }5 a. B5 U
（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
& w! C) g) O2 e$ L
D" K& P1 X! ]) m% p4 y8 \9 a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
" H# p& r4 Y3 n [* D- r$ @ `% O2 T9 c# Q; R
和业务）提供支持。
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7 k/ N f; W% E
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