diff --git a/EIPS/eip-779.md b/EIPS/eip-779.md new file mode 100644 index 00000000..08568a51 --- /dev/null +++ b/EIPS/eip-779.md @@ -0,0 +1,63 @@ +## Preamble + + EIP: 779 + Title: Hardfork Info: DAO Fork + Author: Casey Detrio + Type: Informational + Status: Final + Created: 2017-11-26 + +## Abstract + +This documents the changes included in the hard fork named "DAO Fork". Unlike other hard forks, the DAO Fork did not change the protocol; all EVM opcodes, transaction format, block structure, and so on remained the same. Rather, the DAO Fork was an "irregular state change" that transferred ether balances from a list of accounts ("child DAO" contracts) into a specified account (the "WithdrawDAO" contract). + +## Specification + +- Codename: DAO Fork +- Activation: + - Block == 1,920,000 on Mainnet + +See references [1] and [2] for the original, full specification. It is summarized here for convenience. + +At block 1880000, the following accounts are encoded into a list `L`: +* The DAO (`0xbb9bc244d798123fde783fcc1c72d3bb8c189413`) +* its extraBalance (`0x807640a13483f8ac783c557fcdf27be11ea4ac7a`) +* all children of the DAO creator (`0x4a574510c7014e4ae985403536074abe582adfc8`) +* and the extraBalance of each child + +At the beginning of block 1920000, all ether throughout all accounts in `L` will be transferred to a contract deployed at `0xbf4ed7b27f1d666546e30d74d50d173d20bca754`. The contract was created from the following Solidity code (compiler version `v0.3.5-2016-07-01-48238c9`): + +``` +// Deployed on mainnet at 0xbf4ed7b27f1d666546e30d74d50d173d20bca754 + +contract DAO { + function balanceOf(address addr) returns (uint); + function transferFrom(address from, address to, uint balance) returns (bool); + uint public totalSupply; +} + +contract WithdrawDAO { + DAO constant public mainDAO = DAO(0xbb9bc244d798123fde783fcc1c72d3bb8c189413); + address public trustee = 0xda4a4626d3e16e094de3225a751aab7128e96526; + + function withdraw(){ + uint balance = mainDAO.balanceOf(msg.sender); + + if (!mainDAO.transferFrom(msg.sender, this, balance) || !msg.sender.send(balance)) + throw; + } + + function trusteeWithdraw() { + trustee.send((this.balance + mainDAO.balanceOf(this)) - mainDAO.totalSupply()); + } +} +``` + +## References + +1. https://blog.slock.it/hard-fork-specification-24b889e70703 +2. https://blog.ethereum.org/2016/07/15/to-fork-or-not-to-fork/ + +## Copyright + +Copyright and related rights waived via [CC0](https://creativecommons.org/publicdomain/zero/1.0/).