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authorgronager <gronager@mac.com>2012-12-13 10:00:55 +0100
committerbitcoindev <bitcoindev@gnusha.org>2012-12-13 09:01:06 +0000
commit1d975ba7cbf6dffc365ac0eaea354c76cee22651 (patch)
tree3f13ba77fbe1de59890bf6dcc3e3425e19699406
parent81dd2d6033b95d1f16164629cebc1d306eb3b077 (diff)
downloadpi-bitcoindev-1d975ba7cbf6dffc365ac0eaea354c76cee22651.tar.gz
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Re: [Bitcoin-development] Zero-length scripts
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+Subject: Re: [Bitcoin-development] Zero-length scripts
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+
+Normally I would consider it an error of the parsing script of =
+blockchain (seen that before), however, this seems genuine enough.
+
+the second transaction is the most amusing - it has an output script =
+which is:
+OP_HASH256 =
+000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f =
+OP_EQUAL
+
+The hash is the most famous bitcoin hash... - so if you can come up with =
+something that, when hashed with sha256 yields the genesisblock hash you =
+can claim one BTC ;)
+
+It is actually very easy to do (!), however, it is a game only for =
+miners, as non_standard transactions are not relayed between standard =
+clients. So now a miner can have a go creating a transaction redeeming =
+this 1BTC.
+
+Perhaps, Eligius creating that block, might be playing a little =
+christmas game :)
+
+Cheers,
+
+Michael
+
+On 12/12/2012, at 23:09, Eric Lombrozo <elombrozo@gmail.com> wrote:
+
+> I've noticed a few transactions that have zero-length input and/or =
+output scripts. There's a couple examples in block =
+0000000000000159a27442ee8b7f9ffad0cd799b003eafe007de9fbb47bd6ce7:
+>=20
+> Txs: cdb553214a51ef8d4393b96a185ebbbc2c84b7014e9497fea8aec1ff990dae35, =
+af32bb06f12f2ae5fdb7face7cd272be67c923e86b7a66a76ded02d954c2f94d
+>=20
+>=20
+> Is there ever a legitimate reason to create a transaction with a =
+zero-length script? Should the protocol even allow it?
+>=20
+> -Eric Lombrozo
+>=20
+> =
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+Michael Gr=F8nager
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