<oembed><type>rich</type><version>1.0</version><author_name>npub1xvnnyhz8e4eklaakjc9xgm5w8pzkuckt923uacz2cftqdqx23g7q3c5rqg</author_name><author_url>https://nostr.ae/npub1xvnnyhz8e4eklaakjc9xgm5w8pzkuckt923uacz2cftqdqx23g7q3c5rqg</author_url><provider_name>njump</provider_name><provider_url>https://nostr.ae</provider_url><html>📅 Original date posted:2014-03-27&#xA;📝 Original message:The idea was to use the magic number as the source for cointype.  If it&#39;s&#xA;too big, as Tamas showed, perhaps a hash of it, and for coins without a&#xA;magic number, a hash of their name (or some unique identifier).&#xA;&#xA;That being said, I agree with Andreas that something that is 90%&#xA;inter-operable seems very dangerous and will give people false expectations&#xA;when they miss the corner cases.  If the structure isn&#39;t going to be shared&#xA;completely and have all support shared, having it completely incompatible&#xA;along with a mechanism for converting part of it to another wallet seems&#xA;superior.  The worst types of losses will occur when someone tests out&#xA;something with a limited use case, sees that it appears to work, makes&#xA;dangerous assumptions, then gets burned when it&#39;s too late.&#xA;&#xA;-Allen&#xA;&#xA;&#xA;On Thu, Mar 27, 2014 at 11:06 AM, Pavol Rusnak &lt;stick at gk2.sk&gt; wrote:&#xA;&#xA;&gt; On 03/27/2014 04:57 PM, Allen Piscitello wrote:&#xA;&gt; &gt; Don&#39;t most of these coins have a magic number already assigned that is&#xA;&gt; &gt; unique? (0xD9B4BEF9 for Bitcoin, 0x0709110B for Testnet, FBC0XB6DB for&#xA;&gt; &gt; Litecoin, etc...).  This seems like a good candidate for identifying&#xA;&gt; coins,&#xA;&gt; &gt; and also supports Testnet cases well.  Maybe there are some alts without&#xA;&gt; &gt; such a magic number that might prevent that?&#xA;&gt;&#xA;&gt; That magic number is something I find very unfortunate and superflous in&#xA;&gt; BIP-32 design. Its only purpose is to distinguish BIP-32 trees for&#xA;&gt; various altcoins, but it doesn&#39;t make sense at all once you start&#xA;&gt; storing various altcoins in the same tree using the proposed&#xA;&gt; /m/cointype/reserved&#39;/account&#39;/change/n scheme.&#xA;&gt;&#xA;&gt; I would love to see that removed from BIP-32 and use always&#xA;&gt; 0x0488B21E/0x0488ADE4 (xpub/xpriv), but that is for different discussion&#xA;&gt; I guess.&#xA;&gt;&#xA;&gt; --&#xA;&gt; Best Regards / S pozdravom,&#xA;&gt;&#xA;&gt; Pavol Rusnak &lt;stick at gk2.sk&gt;&#xA;&gt;&#xA;&gt;&#xA;&gt; ------------------------------------------------------------------------------&#xA;&gt; _______________________________________________&#xA;&gt; Bitcoin-development mailing list&#xA;&gt; Bitcoin-development at lists.sourceforge.net&#xA;&gt; https://lists.sourceforge.net/lists/listinfo/bitcoin-development&#xA;&gt;&#xA;-------------- next part --------------&#xA;An HTML attachment was scrubbed...&#xA;URL: &lt;http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20140327/e7aa5555/attachment.html&gt;</html></oembed>