标 题: 关于比特币,勿谓言之不预zz

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cathayan

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Nov 21, 2013, 12:53:48 AM11/21/13
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http://www.newsmth.net/nForum/#!article/ITExpress/1374399
发信人: POTF (Poets of the Fall), 信区: ITExpress
标 题: 关于比特币,勿谓言之不预zz
发信站: 水木社区 (Wed Nov 20 15:49:59 2013), 站内

Quantitative Analysis of the Full Bitcoin Transaction Graph
Dorit Ron and Adi Shamir
Department of Computer Science and Applied Mathematics,
The Weizmann Institute of Science, Israel
{dorit.ron,adi.shamir}@weizmann.ac.il

shamir是谁就不用我说了吧,世界上最牛鼻的加密算法专家之一 RSA的 S

他在这片文章里通过统计分析指出,目前78%的 bitcoin从未在市面上流通,根据历史交易
记录判断,目前市面上流通的绝大多数bitcoin来自于2010年的一个单次交易

结论说,有一个人大约持有了一半的bitcoin

The Bitcoin system is the best known and most widely used alternative
payment scheme, but so far it was very dicult to get accurate information
about how it is used in practice. In this paper
we describe a large number of statistical properties of the Bitcoin
transaction graph, which contains all the transactions which were carried
out by all the users until May 13 th 2012. We discovered
that most of the minted bitcoins remain dormant in addresses which had never
participated in any outgoing transactions. We found out that there is a
huge number of tiny transactions which move only a small fraction of a
single bitcoin, but there are also hundreds of transactions which move more
than 50,000 bitcoins. We analyzed all these large transactions by following
in detail the way these sums were accumulated and the way they were
dispersed, and realized
that almost all these large transactions were descendants of a single
transaction which was carried out in November 2010. Finally, we noted that
the subgraph which contains these large transactions along with their
neighborhood has many strange looking structures which could be an attempt
to conceal the existence and relationship between these transactions, but
such an attempt can be foiled
by following the money trail in a suciently persistent way
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Xin LI

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Nov 21, 2013, 3:16:19 AM11/21/13
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嗯?这么久才有人注意到吗?这篇论文都一年多了吧……
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Junle Li

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Nov 21, 2013, 3:37:05 AM11/21/13
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国内有玩bitcoin的人群吗?在人民币(通货膨胀厉害)都不靠谱的国度,有人玩这种虚拟货币?

Dispensable

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Nov 21, 2013, 3:38:10 AM11/21/13
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中国可是最大的BTC集散地。。。周二时候的价格不就是中国抬上去的嘛,中国大妈加入进来咯

2013/11/21, Junle Li <lij...@gmail.com>:
------------发言完毕------------

Junle Li

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Nov 21, 2013, 3:40:16 AM11/21/13
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一直没搞懂,这货真的可以当钱用?!

Dispensable

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Nov 21, 2013, 3:40:55 AM11/21/13
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可以啊。建议你先去维基百科看下BTC的介绍。

2013/11/21, Junle Li <lij...@gmail.com>:

cathayan

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Nov 21, 2013, 3:41:04 AM11/21/13
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不是最近火这一把,都快把它给忘了
cath...@gmail.com
http://blog.cathayan.org

Calon

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Nov 21, 2013, 3:43:09 AM11/21/13
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有人持有了一半还不算严重,大不了影响汇率波动。

要紧的是,后来入场的这些人,有几个是为了比特币的支付使用才入手的?

所谓比特币有分布式、匿名、可追踪、无限分割、不会超发等等好处,所以就有内生价值,可以取代商品货币和信用货币的说法,有几个玩比特币的人是真相信而且实际用起来确有被广泛接受的好处?
如果对比特币狂热的人都不拿它的货币属性优势当回事,它真的有宣传的那么有前途?

cathayan

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Nov 21, 2013, 3:55:55 AM11/21/13
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自从美元跟黄金脱钩之后,这世界上就没有基本等价物这种东西了,原来美元要用黄金来标价,黄金就是基本等价物,它就是基准,最后的货币。现在没人管了,那么黄金就只是可以用任意一种货币来标价的普通商品而已,事实也是这样吧。

新造个很厉害的东西出来,它一样只是个普通商品。

2013/11/21 Calon <calo...@gmail.com>:
cath...@gmail.com
http://blog.cathayan.org

Calon

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Nov 21, 2013, 4:51:08 AM11/21/13
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只是在一些国家强制不承认黄金的货币地位了,所以说还是有人管的。
基本等价物这种东西,不是大家毫无根据的约定就成了的,没有基本等价物的种种天然优势,也会逐渐被市场选择抛弃。


2013/11/21 cathayan <cath...@gmail.com>
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