_powersのmapping, _decorationsのmapping, その先にあるarrayの要素の位置を特定する

detectKeys.js

const Web3 = require('web3');
const provider = new Web3.providers.HttpProvider(
  "https://ropsten.infura.io/ws"
);
const web3 = new Web3(provider); 

getKeys()

function getKeys() {
  let key        = '0000000000000000000000[your_address_from_0x]'
  let powerIndex = '0000000000000000000000000000000000000000000000000000000000000000'

  let powerKey   =  web3.sha3(key + powerIndex, {"encoding":"hex"})
  console.log("powerKey: "+powerKey);

  let decorationArrIndex = '0000000000000000000000000000000000000000000000000000000000000001'
  let decorationArrKey   =  web3.sha3(key + decorationArrIndex, {"encoding":"hex"})
  console.log("arrKey: "+decorationArrKey);

  let decorationArr0Key = web3.sha3(decorationArrKey, {"encoding":"hex"})
  console.log("decorationArr0Key: "+decorationArr0Key);
}