EOS主网映射
EOS主网映射，就是将一个以太坊地址和一个EOS主网地址进行绑定，并将这种绑定记录到EOS的众筹合约中。
这样，以太坊地址所持有的EOS代币，在主网启动后， 对应的EOS主网地址，也会拥有相同数量的EOS。
如何生成EOS主网地址
- 通过社区开发的工具
https://nadejde.github.io/eos-token-sale/
- 点击Generate EOS key
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这个工具是从EOS官方的众筹合约精简过来的，删除了一些依赖库。代码托管在github上，可以review。
下面是作者在steem上的介绍文章，BM点过赞。
https://steemit.com/eos/@nadejde/eos-key-generator
- 通过EOS官方提供的脚本工具
https://github.com/EOSIO/eosjs-ecc
import ecc from 'eosjs-ecc'
ecc.randomKey().then(privateKey => {
console.log('Private Key:\t', privateKey) // wif
console.log('Public Key:\t', ecc.privateToPublic(privateKey))
})
注意保管好好生成的Private Key。
如何使用Parity钱包做映射
所谓的映射，实际上是调用EOS合约的register()方法。
下面演示，在Parity钱包中如何操作。
-
在Setting中，勾选Contracts
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打开Contracts，点击 WATCH，选择 Custom Contract，添加EOS众筹合约。
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EOS合约的信息，可以在etherscan查询
https://etherscan.io/address/0xd0a6e6c54dbc68db5db3a091b171a77407ff7ccf#code
需要填写的信息如下：
network address:
0xd0a6e6c54dbc68db5db3a091b171a77407ff7ccf
contract name:
EOSSale
contract abi:
[{"constant":true,"inputs":[{"name":"","type":"uint256"},{"name":"","type":"address"}],"name":"claimed","outputs":[{"name":"","type":"bool"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"owner_","type":"address"}],"name":"setOwner","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"time","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint128"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"foundersAllocation","outputs":[{"name":"","type":"uint128"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"day","type":"uint256"}],"name":"claim","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"foundersKey","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"},{"name":"","type":"address"}],"name":"userBuys","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"day","type":"uint256"}],"name":"createOnDay","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"freeze","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"keys","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"startTime","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"authority_","type":"address"}],"name":"setAuthority","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"","type":"uint256"}],"name":"dailyTotals","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"buy","outputs":[],"payable":true,"type":"function"},{"constant":true,"inputs":[],"name":"openTime","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"EOS","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"today","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"authority","outputs":[{"name":"","type":"address"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"eos","type":"address"}],"name":"initialize","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"createFirstDay","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[],"name":"claimAll","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"timestamp","type":"uint256"}],"name":"dayFor","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"day","type":"uint256"},{"name":"limit","type":"uint256"}],"name":"buyWithLimit","outputs":[],"payable":true,"type":"function"},{"constant":false,"inputs":[],"name":"collect","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"numberOfDays","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"key","type":"string"}],"name":"register","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"createPerDay","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"inputs":[{"name":"_numberOfDays","type":"uint256"},{"name":"_totalSupply","type":"uint128"},{"name":"_openTime","type":"uint256"},{"name":"_startTime","type":"uint256"},{"name":"_foundersAllocation","type":"uint128"},{"name":"_foundersKey","type":"string"}],"payable":false,"type":"constructor"},{"payable":true,"type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"window","type":"uint256"},{"indexed":false,"name":"user","type":"address"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"LogBuy","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"window","type":"uint256"},{"indexed":false,"name":"user","type":"address"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"LogClaim","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"user","type":"address"},{"indexed":false,"name":"key","type":"string"}],"name":"LogRegister","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"amount","type":"uint256"}],"name":"LogCollect","type":"event"},{"anonymous":false,"inputs":[],"name":"LogFreeze","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"authority","type":"address"}],"name":"LogSetAuthority","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"}],"name":"LogSetOwner","type":"event"}]
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点击 Add Contract， 这样 就可以在Contracts页面看到EOS合约了。
-
打开刚刚添加的合约， 点击Execute。
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- 选择需要绑定的eth账户
- 选择 ' register' function
- 填写 EOS主网地址 ( Public key)
验证参数正确后，发送交易。
如何查询绑定
https://etherscan.io/address/0xd0a6e6c54dbc68db5db3a091b171a77407ff7ccf#readContract
在8. keys 中，输入eth地址，点击Query
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如何重新绑定
检查register() 合约代码，可以看到，
在EOS众筹结束后的一天内，都可以执行register，意味着在这期间可以重新绑定。
如果EOS密钥丢失等情况发生，重新生成地址并执行绑定，就可以了。
// Value should be a public key. Read full key import policy.
// Manually registering requires a base58
// encoded using the STEEM, BTS, or EOS public key format.
function register(string key) {
assert(today() <= numberOfDays + 1);
assert(bytes(key).length <= 64);
keys[msg.sender] = key;
LogRegister(msg.sender, key);
}
参考：
https://www.reddit.com/r/eos/comments/88585f/the_exhaustive_eos_faq/
https://steemit.com/eos/@sandwich/contributing-to-eos-token-sale-with-myetherwallet-and-contract-inner-workings