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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：1 U* I4 z& X8 b& {$ `
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- `2 Y* Q- J" |( D. a+ F: S
' [4 \5 l, F: `: t! h
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、
5 k) u3 A9 j9 l, A" n3 j( \* q
1 [0 V" |( A5 D8 q$ |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
9 {* ~2 d+ F" T3 l8 T$ g. B6 a
4 P# k4 C1 [7 P6 t$ l) S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。
3 l' e) P Q+ d$ E 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
7 o, H* @- T2 _ ?3 G0 M" |
% ?8 V5 z" F3 T: O% u ~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
3 U( i7 G r0 L8 a8 n u; K. E; m; p; q! B) N
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# d4 c0 x2 R: f9 l$ @5 t
Q, O8 A. b9 k& {2 K# Z- U8 I当局才能了解交易详情。
7 ] q, E5 D' b" e9 ^$ k3 }
" L; q7 Q5 a" {2 v 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4 R7 m. E! }$ ~6 c2 J
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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
/ l- ]- @: J& @; N6 \( I2 W7 _8 {" ?' ^. s& V, w
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。
. h5 s# s! L0 q7 B' Z3 e& I- `8 ?* o
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，
o) y [- ?0 M6 `# ~* F
. J: h3 a7 F, S) c* d" [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
' b% j, w9 m( n6 v0 f5 l. @+ k J4 _' ^
（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
( T9 ?; u, V8 u- x; h* E% g- g$ P% g4 H/ g7 p
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
2 ]* S/ e/ T8 Q& K6 c# S) t4 q e/ Q
和业务）提供支持。" g. J8 ]% a0 T& I* J0 R
' O5 u4 R% Y h6 T% u) H- M6 ] x3 a7 h: g
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