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Merge pull request #112 from 5chdn/feat-eip2 

I propose to update EIP2 status to 'final'.
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wanderer 2016-06-14 16:12:24 -04:00 committed by GitHub
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EIP: 2
Title: Homestead Hard-fork Changes
Author: Vitalik Buterin <v@buterin.com>
Status: Accepted
Status: Final
Type: Standard
Layer: Consensus (hard-fork)
Created: 2015-11-15
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==Specification==
If <code>block.number >= HOMESTEAD_FORK_BLKNUM</code> (eg. 1.150.000 (NOT YET SET IN STONE!) on livenet and Morden, 0 on future testnets), do the following:
If <code>block.number >= HOMESTEAD_FORK_BLKNUM</code> (e.g., 1.150.000 on livenet, 494.000 on Morden and 0 on future testnets), do the following:
# The gas cost ''for creating contracts via a transaction'' is increased from 21000 to 53000, ie. if you send a transaction and the to address is the empty string, the initial gas subtracted is 53000 plus the gas cost of the tx data, rather than 21000 as is currently the case. Contract creation from a contract using the <code>CREATE</code> opcode is unaffected.
# All transaction signatures whose s-value is greater than <code>secp256k1n/2</code> are now considered invalid. The ECDSA recover precompiled contract remains unchanged and will keep accepting high s-values - this is useful if e.g. a contract recovers old Bitcoin signatures.