<oembed><type>rich</type><version>1.0</version><author_name>npub1m230cem2yh3mtdzkg32qhj73uytgkyg5ylxsu083n3tpjnajxx4qqa2np2</author_name><author_url>https://nostr.ae/npub1m230cem2yh3mtdzkg32qhj73uytgkyg5ylxsu083n3tpjnajxx4qqa2np2</author_url><provider_name>njump</provider_name><provider_url>https://nostr.ae</provider_url><html>📅 Original date posted:2014-04-23&#xA;📝 Original message:On Wed, Apr 23, 2014 at 05:41:26PM +0200, Pieter Wuille wrote:&#xA;&gt; On Wed, Apr 23, 2014 at 5:34 PM, Kevin &lt;kevinsisco61784 at gmail.com&gt; wrote:&#xA;&gt; &gt; I have some questions:&#xA;&gt; &gt; 1.  How can we work towards solving the double-spending problem?&#xA;&gt; &#xA;&gt; We have this awesome technology that solves the double-spending&#xA;&gt; problem. It&#39;s called a blockchain. Of course, it only works when&#xA;&gt; transactions are actually in a block.&#xA;&gt; &#xA;&gt; This issue is about double-spending preventing before they&#39;re&#xA;&gt; confirmed. This is (and has always been) just a best-effort mechanism&#xA;&gt; in the network.&#xA;&gt; &#xA;&gt; &gt; 2.  Is it possible to &#34;scan&#34; for double-spending and correct it?&#xA;&gt; &#xA;&gt; That is what is being proposed here, by introducing a mechanism where&#xA;&gt; miners can vote to penalize other miners if they seem to allow (too&#xA;&gt; many?) double spends.&#xA;&#xA;Worse, it&#39;s a mechanism where miners can vote to penalize other miners&#xA;for any reason at all. Nothing in the mechanism requires any proof that&#xA;a double-spend happened, nor can it.  Even if you require the simple&#xA;&#34;two signatures for same output&#34; mechanism, that just proves the&#xA;existance of a second signature, and says nothing at all about whether&#xA;or not that signature was ever broadcast on any network.&#xA;&#xA;-- &#xA;&#39;peter&#39;[:-1]@petertodd.org&#xA;0000000000000000278031f86c71265f6eaf1fe9ce6cc831dc4f956676a7a7f7&#xA;-------------- next part --------------&#xA;A non-text attachment was scrubbed...&#xA;Name: signature.asc&#xA;Type: application/pgp-signature&#xA;Size: 685 bytes&#xA;Desc: Digital signature&#xA;URL: &lt;http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20140423/c189cccd/attachment.sig&gt;</html></oembed>