Contract 0x6CC73A7cb32B5978dA026b8fB8A33C080a9a0Fe4

/**
 *Submitted for verification at Etherscan.io on 2020-07-09
*/

pragma solidity >=0.5.0 <0.7.0;


/**
* @title Tellor Transfer
* @dev Contains the methods related to transfers and ERC20. Tellor.sol and TellorGetters.sol
* reference this library for function's logic.
*/
library TellorTransfer {
    using SafeMath for uint256;

    event Approval(address indexed _owner, address indexed _spender, uint256 _value); //ERC20 Approval event
    event Transfer(address indexed _from, address indexed _to, uint256 _value); //ERC20 Transfer Event

    /*Functions*/

    /**
    * @dev Allows for a transfer of tokens to _to
    * @param _to The address to send tokens to
    * @param _amount The amount of tokens to send
    * @return true if transfer is successful
    */
    function transfer(TellorStorage.TellorStorageStruct storage self, address _to, uint256 _amount) public returns (bool success) {
        doTransfer(self, msg.sender, _to, _amount);
        return true;
    }

    /**
    * @notice Send _amount tokens to _to from _from on the condition it
    * is approved by _from
    * @param _from The address holding the tokens being transferred
    * @param _to The address of the recipient
    * @param _amount The amount of tokens to be transferred
    * @return True if the transfer was successful
    */
    function transferFrom(TellorStorage.TellorStorageStruct storage self, address _from, address _to, uint256 _amount)
        public
        returns (bool success)
    {
        require(self.allowed[_from][msg.sender] >= _amount, "Allowance is wrong");
        self.allowed[_from][msg.sender] -= _amount;
        doTransfer(self, _from, _to, _amount);
        return true;
    }

    /**
    * @dev This function approves a _spender an _amount of tokens to use
    * @param _spender address
    * @param _amount amount the spender is being approved for
    * @return true if spender appproved successfully
    */
    function approve(TellorStorage.TellorStorageStruct storage self, address _spender, uint256 _amount) public returns (bool) {
        require(_spender != address(0), "Spender is 0-address");
        self.allowed[msg.sender][_spender] = _amount;
        emit Approval(msg.sender, _spender, _amount);
        return true;
    }

    /**
    * @param _user address of party with the balance
    * @param _spender address of spender of parties said balance
    * @return Returns the remaining allowance of tokens granted to the _spender from the _user
    */
    function allowance(TellorStorage.TellorStorageStruct storage self, address _user, address _spender) public view returns (uint256) {
        return self.allowed[_user][_spender];
    }

    /**
    * @dev Completes POWO transfers by updating the balances on the current block number
    * @param _from address to transfer from
    * @param _to addres to transfer to
    * @param _amount to transfer
    */
    function doTransfer(TellorStorage.TellorStorageStruct storage self, address _from, address _to, uint256 _amount) public {
        require(_amount > 0, "Tried to send non-positive amount");
        require(_to != address(0), "Receiver is 0 address");
        //allowedToTrade checks the stakeAmount is removed from balance if the _user is staked
        require(allowedToTrade(self, _from, _amount), "Stake amount was not removed from balance");
        uint256 previousBalance = balanceOfAt(self, _from, block.number);
        updateBalanceAtNow(self.balances[_from], previousBalance - _amount);
        previousBalance = balanceOfAt(self, _to, block.number);
        require(previousBalance + _amount >= previousBalance, "Overflow happened"); // Check for overflow
        updateBalanceAtNow(self.balances[_to], previousBalance + _amount);
        emit Transfer(_from, _to, _amount);
    }

    /**
    * @dev Gets balance of owner specified
    * @param _user is the owner address used to look up the balance
    * @return Returns the balance associated with the passed in _user
    */
    function balanceOf(TellorStorage.TellorStorageStruct storage self, address _user) public view returns (uint256) {
        return balanceOfAt(self, _user, block.number);
    }

    /**
    * @dev Queries the balance of _user at a specific _blockNumber
    * @param _user The address from which the balance will be retrieved
    * @param _blockNumber The block number when the balance is queried
    * @return The balance at _blockNumber specified
    */
    function balanceOfAt(TellorStorage.TellorStorageStruct storage self, address _user, uint256 _blockNumber) public view returns (uint256) {
        if ((self.balances[_user].length == 0) || (self.balances[_user][0].fromBlock > _blockNumber)) {
            return 0;
        } else {
            return getBalanceAt(self.balances[_user], _blockNumber);
        }
    }

    /**
    * @dev Getter for balance for owner on the specified _block number
    * @param checkpoints gets the mapping for the balances[owner]
    * @param _block is the block number to search the balance on
    * @return the balance at the checkpoint
    */
    function getBalanceAt(TellorStorage.Checkpoint[] storage checkpoints, uint256 _block) public view returns (uint256) {
        if (checkpoints.length == 0) return 0;
        if (_block >= checkpoints[checkpoints.length - 1].fromBlock) return checkpoints[checkpoints.length - 1].value;
        if (_block < checkpoints[0].fromBlock) return 0;
        // Binary search of the value in the array
        uint256 min = 0;
        uint256 max = checkpoints.length - 1;
        while (max > min) {
            uint256 mid = (max + min + 1) / 2;
            if (checkpoints[mid].fromBlock <= _block) {
                min = mid;
            } else {
                max = mid - 1;
            }
        }
        return checkpoints[min].value;
    }

    /**
    * @dev This function returns whether or not a given user is allowed to trade a given amount
    * and removing the staked amount from their balance if they are staked
    * @param _user address of user
    * @param _amount to check if the user can spend
    * @return true if they are allowed to spend the amount being checked
    */
    function allowedToTrade(TellorStorage.TellorStorageStruct storage self, address _user, uint256 _amount) public view returns (bool) {
        if (self.stakerDetails[_user].currentStatus > 0 && self.stakerDetails[_user].currentStatus < 4) {
            //Removes the stakeAmount from balance if the _user is staked
            if (balanceOf(self, _user).sub(self.uintVars[keccak256("stakeAmount")]).sub(_amount) >= 0) {
                return true;
            }
        } else if (balanceOf(self, _user).sub(_amount) >= 0) {
            return true;
        }
        return false;
    }

    /**
    * @dev Updates balance for from and to on the current block number via doTransfer
    * @param checkpoints gets the mapping for the balances[owner]
    * @param _value is the new balance
    */
    function updateBalanceAtNow(TellorStorage.Checkpoint[] storage checkpoints, uint256 _value) public {
        if ((checkpoints.length == 0) || (checkpoints[checkpoints.length - 1].fromBlock < block.number)) {
            TellorStorage.Checkpoint storage newCheckPoint = checkpoints[checkpoints.length++];
            newCheckPoint.fromBlock = uint128(block.number);
            newCheckPoint.value = uint128(_value);
        } else {
            TellorStorage.Checkpoint storage oldCheckPoint = checkpoints[checkpoints.length - 1];
            oldCheckPoint.value = uint128(_value);
        }
    }
}



/**
* @title Tellor Dispute
* @dev Contains the methods related to disputes. Tellor.sol references this library for function's logic.
*/

library TellorDispute {
    using SafeMath for uint256;
    using SafeMath for int256;

    //emitted when a new dispute is initialized
    event NewDispute(uint256 indexed _disputeId, uint256 indexed _requestId, uint256 _timestamp, address _miner);
    //emitted when a new vote happens
    event Voted(uint256 indexed _disputeID, bool _position, address indexed _voter);
    //emitted upon dispute tally
    event DisputeVoteTallied(uint256 indexed _disputeID, int256 _result, address indexed _reportedMiner, address _reportingParty, bool _active);
    event NewTellorAddress(address _newTellor); //emmited when a proposed fork is voted true

    /*Functions*/

    /**
    * @dev Helps initialize a dispute by assigning it a disputeId
    * when a miner returns a false on the validate array(in Tellor.ProofOfWork) it sends the
    * invalidated value information to POS voting
    * @param _requestId being disputed
    * @param _timestamp being disputed
    * @param _minerIndex the index of the miner that submitted the value being disputed. Since each official value
    * requires 5 miners to submit a value.
    */
    function beginDispute(TellorStorage.TellorStorageStruct storage self, uint256 _requestId, uint256 _timestamp, uint256 _minerIndex) public {
        TellorStorage.Request storage _request = self.requestDetails[_requestId];
        //require that no more than a day( (24 hours * 60 minutes)/10minutes=144 blocks) has gone by since the value was "mined"
        //require(now - _timestamp <= 1 days, "The value was mined more than a day ago");
        require(_request.minedBlockNum[_timestamp] > 0, "Mined block is 0");
        require(_minerIndex < 5, "Miner index is wrong");

        //_miner is the miner being disputed. For every mined value 5 miners are saved in an array and the _minerIndex
        //provided by the party initiating the dispute
        address _miner = _request.minersByValue[_timestamp][_minerIndex];
        bytes32 _hash = keccak256(abi.encodePacked(_miner, _requestId, _timestamp));



        //Increase the dispute count by 1

        self.uintVars[keccak256("disputeCount")] = self.uintVars[keccak256("disputeCount")] + 1;

        //Sets the new disputeCount as the disputeId
        uint256 disputeId = self.uintVars[keccak256("disputeCount")];
                //Ensures that a dispute is not already open for the that miner, requestId and timestamp
        if(self.disputeIdByDisputeHash[_hash] > 0){
            self.disputesById[disputeId].disputeUintVars[keccak256("origID")] = self.disputeIdByDisputeHash[_hash];

        }
        else{
            self.disputeIdByDisputeHash[_hash] = disputeId;
        }
        uint256 origID = self.disputeIdByDisputeHash[_hash];

        self.disputesById[origID].disputeUintVars[keccak256("disputeRounds")]++;
        self.disputesById[origID].disputeUintVars[keccak256(abi.encodePacked(self.disputesById[origID].disputeUintVars[keccak256("disputeRounds")]))] = disputeId;
        if(disputeId != origID){
            uint256 lastID =  self.disputesById[origID].disputeUintVars[keccak256(abi.encodePacked(self.disputesById[origID].disputeUintVars[keccak256("disputeRounds")]-1))];
            require(self.disputesById[lastID].disputeUintVars[keccak256("minExecutionDate")] < now, "Dispute is already open");
            if(self.disputesById[lastID].executed){
                require(now - self.disputesById[lastID].disputeUintVars[keccak256("tallyDate")] <= 1 days, "Time for voting haven't elapsed");
            }
        }
        uint256 _fee = self.uintVars[keccak256("disputeFee")] * self.disputesById[origID].disputeUintVars[keccak256("disputeRounds")];
        
        //maps the dispute hash to the disputeId

        //maps the dispute to the Dispute struct
        self.disputesById[disputeId] = TellorStorage.Dispute({
            hash: _hash,
            isPropFork: false,
            reportedMiner: _miner,
            reportingParty: msg.sender,
            proposedForkAddress: address(0),
            executed: false,
            disputeVotePassed: false,
            tally: 0
        });

        //Saves all the dispute variables for the disputeId
        self.disputesById[disputeId].disputeUintVars[keccak256("requestId")] = _requestId;
        self.disputesById[disputeId].disputeUintVars[keccak256("timestamp")] = _timestamp;
        self.disputesById[disputeId].disputeUintVars[keccak256("value")] = _request.valuesByTimestamp[_timestamp][_minerIndex];
        self.disputesById[disputeId].disputeUintVars[keccak256("minExecutionDate")] = now + 2 days * self.disputesById[origID].disputeUintVars[keccak256("disputeRounds")];
        self.disputesById[disputeId].disputeUintVars[keccak256("blockNumber")] = block.number;
        self.disputesById[disputeId].disputeUintVars[keccak256("minerSlot")] = _minerIndex;
        self.disputesById[disputeId].disputeUintVars[keccak256("fee")] = _fee;
  
        TellorTransfer.doTransfer(self, msg.sender, address(this),_fee);

        //Values are sorted as they come in and the official value is the median of the first five
        //So the "official value" miner is always minerIndex==2. If the official value is being
        //disputed, it sets its status to inDispute(currentStatus = 3) so that users are made aware it is under dispute
        if (_minerIndex == 2) {
            _request.inDispute[_timestamp] = true;
            _request.finalValues[_timestamp] = 0;
        }
        if (self.stakerDetails[_miner].currentStatus != 4){
            self.stakerDetails[_miner].currentStatus = 3;
        }
        emit NewDispute(disputeId, _requestId, _timestamp, _miner);
    }

    /**
    * @dev Allows token holders to vote
    * @param _disputeId is the dispute id
    * @param _supportsDispute is the vote (true=the dispute has basis false = vote against dispute)
    */
    function vote(TellorStorage.TellorStorageStruct storage self, uint256 _disputeId, bool _supportsDispute) public {
        TellorStorage.Dispute storage disp = self.disputesById[_disputeId];

        //Get the voteWeight or the balance of the user at the time/blockNumber the disupte began
        uint256 voteWeight = TellorTransfer.balanceOfAt(self, msg.sender, disp.disputeUintVars[keccak256("blockNumber")]);

        //Require that the msg.sender has not voted
        require(disp.voted[msg.sender] != true, "Sender has already voted");

        //Requre that the user had a balance >0 at time/blockNumber the disupte began
        require(voteWeight > 0, "User balance is 0");

        //ensures miners that are under dispute cannot vote
        require(self.stakerDetails[msg.sender].currentStatus != 3, "Miner is under dispute");

        //Update user voting status to true
        disp.voted[msg.sender] = true;

        //Update the number of votes for the dispute
        disp.disputeUintVars[keccak256("numberOfVotes")] += 1;

        //If the user supports the dispute increase the tally for the dispute by the voteWeight
        //otherwise decrease it
        if (_supportsDispute) {
            disp.tally = disp.tally.add(int256(voteWeight));
        } else {
            disp.tally = disp.tally.sub(int256(voteWeight));
        }

        //Let the network know the user has voted on the dispute and their casted vote
        emit Voted(_disputeId, _supportsDispute, msg.sender);
    }

    /**
    * @dev tallies the votes.
    * @param _disputeId is the dispute id
    */
    function tallyVotes(TellorStorage.TellorStorageStruct storage self, uint256 _disputeId) public {
        TellorStorage.Dispute storage disp = self.disputesById[_disputeId];

        //Ensure this has not already been executed/tallied
        require(disp.executed == false, "Dispute has been already executed");
        require(now > disp.disputeUintVars[keccak256("minExecutionDate")], "Time for voting haven't elapsed");
        require(disp.reportingParty != address(0));
        //If the vote is not a proposed fork
        if (disp.isPropFork == false) {
                //Ensure the time for voting has elapsed
                    TellorStorage.StakeInfo storage stakes = self.stakerDetails[disp.reportedMiner];
                    //If the vote for disputing a value is succesful(disp.tally >0) then unstake the reported
                    // miner and transfer the stakeAmount and dispute fee to the reporting party
                    if (disp.tally > 0) {
                        //Set the dispute state to passed/true
                        disp.disputeVotePassed = true;
                    }
                    if(stakes.currentStatus == 3){
                        stakes.currentStatus = 4;
                    }
        } else {
            if (disp.tally > 0 && uint(disp.tally) >= ((self.uintVars[keccak256("total_supply")] * 10) / 100)) {
                disp.disputeVotePassed = true;
                emit NewTellorAddress(disp.proposedForkAddress);
            }
        }
        disp.disputeUintVars[keccak256("tallyDate")] = now;
        disp.executed = true;
        emit DisputeVoteTallied(_disputeId, disp.tally, disp.reportedMiner, disp.reportingParty, disp.disputeVotePassed);
    }

    /**
    * @dev Allows for a fork to be proposed
    * @param _propNewTellorAddress address for new proposed Tellor
    */
    function proposeFork(TellorStorage.TellorStorageStruct storage self, address _propNewTellorAddress) public {
        bytes32 _hash = keccak256(abi.encodePacked(_propNewTellorAddress));
        TellorTransfer.doTransfer(self, msg.sender, address(this), 100e18); //This is the fork fee (just 100 tokens flat, no refunds)
        self.uintVars[keccak256("disputeCount")]++;
        uint256 disputeId = self.uintVars[keccak256("disputeCount")];
        if(self.disputeIdByDisputeHash[_hash] > 0){
            self.disputesById[disputeId].disputeUintVars[keccak256("origID")] = self.disputeIdByDisputeHash[_hash];
        }
        else{
            self.disputeIdByDisputeHash[_hash] = disputeId;
        }
        uint256 origID = self.disputeIdByDisputeHash[_hash];

        self.disputesById[origID].disputeUintVars[keccak256("disputeRounds")]++;
        self.disputesById[origID].disputeUintVars[keccak256(abi.encodePacked(self.disputesById[origID].disputeUintVars[keccak256("disputeRounds")]))] = disputeId;
        if(disputeId != origID){
            uint256 lastID =  self.disputesById[origID].disputeUintVars[keccak256(abi.encodePacked(self.disputesById[origID].disputeUintVars[keccak256("disputeRounds")]-1))];
            require(self.disputesById[lastID].disputeUintVars[keccak256("minExecutionDate")] < now, "Dispute is already open");
            if(self.disputesById[lastID].executed){
                require(now - self.disputesById[lastID].disputeUintVars[keccak256("tallyDate")] <= 1 days, "Time for voting haven't elapsed");
            }
        }
        self.disputesById[disputeId] = TellorStorage.Dispute({
            hash: _hash,
            isPropFork: true,
            reportedMiner: msg.sender,
            reportingParty: msg.sender,
            proposedForkAddress: _propNewTellorAddress,
            executed: false,
            disputeVotePassed: false,
            tally: 0
        });
        self.disputesById[disputeId].disputeUintVars[keccak256("blockNumber")] = block.number;
        self.disputesById[disputeId].disputeUintVars[keccak256("minExecutionDate")] = now + 7 days;
    }

    /**
    * @dev Updates the Tellor address after a proposed fork has 
    * passed the vote and day has gone by without a dispute
    * @param _disputeId the disputeId for the proposed fork
    */
    function updateTellor(TellorStorage.TellorStorageStruct storage self, uint _disputeId) public {
        bytes32 _hash = self.disputesById[_disputeId].hash;
        uint256 origID = self.disputeIdByDisputeHash[_hash];
        uint256 lastID =  self.disputesById[origID].disputeUintVars[keccak256(abi.encodePacked(self.disputesById[origID].disputeUintVars[keccak256("disputeRounds")]))];
        TellorStorage.Dispute storage disp = self.disputesById[lastID];
        require(disp.disputeVotePassed == true, "vote needs to pass");
        require(now - disp.disputeUintVars[keccak256("tallyDate")] > 1 days, "Time for voting for further disputes has not passed");
        self.addressVars[keccak256("tellorContract")] = disp.proposedForkAddress;
    }

    /**
    * @dev Allows disputer to unlock the dispute fee
    * @param _disputeId to unlock fee from
    */
    function unlockDisputeFee (TellorStorage.TellorStorageStruct storage self, uint _disputeId) public {
        bytes32 _hash = self.disputesById[_disputeId].hash;
        uint256 origID = self.disputeIdByDisputeHash[_hash];
        uint256 lastID =  self.disputesById[origID].disputeUintVars[keccak256(abi.encodePacked(self.disputesById[origID].disputeUintVars[keccak256("disputeRounds")]))];
        if(lastID == 0){
            lastID = origID;
        }
        TellorStorage.Dispute storage disp = self.disputesById[origID];
        TellorStorage.Dispute storage last = self.disputesById[lastID];
                if(disp.disputeUintVars[keccak256("disputeRounds")] == 0){
                  disp.disputeUintVars[keccak256("disputeRounds")] = 1;  
                }
        require(disp.disputeUintVars[keccak256("paid")] == 0,"already paid out");
        require(now - last.disputeUintVars[keccak256("tallyDate")] > 1 days, "Time for voting haven't elapsed");
        TellorStorage.StakeInfo storage stakes = self.stakerDetails[disp.reportedMiner];
        disp.disputeUintVars[keccak256("paid")] = 1;
        if (last.disputeVotePassed == true){
                //Changing the currentStatus and startDate unstakes the reported miner and transfers the stakeAmount
                stakes.startDate = now - (now % 86400);

                //Reduce the staker count
                self.uintVars[keccak256("stakerCount")] -= 1;

                //Update the minimum dispute fee that is based on the number of stakers 
                updateMinDisputeFee(self);
                //Decreases the stakerCount since the miner's stake is being slashed
                if(stakes.currentStatus == 4){
                    TellorTransfer.doTransfer(self,disp.reportedMiner,disp.reportingParty,self.uintVars[keccak256("stakeAmount")]);
                    stakes.currentStatus =0 ;
                }
                for(uint i = 0; i < disp.disputeUintVars[keccak256("disputeRounds")];i++){
                    uint256 _id = disp.disputeUintVars[keccak256(abi.encodePacked(disp.disputeUintVars[keccak256("disputeRounds")]-i))];
                    if(_id == 0){
                        _id = origID;
                    }
                    TellorStorage.Dispute storage disp2 = self.disputesById[_id];
                    TellorTransfer.doTransfer(self,address(this),disp2.reportingParty,disp2.disputeUintVars[keccak256("fee")]);
                }
            }
            else {
                stakes.currentStatus = 1;
                TellorStorage.Request storage _request = self.requestDetails[disp.disputeUintVars[keccak256("requestId")]];
                if(disp.disputeUintVars[keccak256("minerSlot")] == 2) {
                    //note we still don't put timestamp back into array (is this an issue? (shouldn't be))
                  _request.finalValues[disp.disputeUintVars[keccak256("timestamp")]] = disp.disputeUintVars[keccak256("value")];
                }
                if (_request.inDispute[disp.disputeUintVars[keccak256("timestamp")]] == true) {
                    _request.inDispute[disp.disputeUintVars[keccak256("timestamp")]] = false;
                }
                for(uint i = 0; i < disp.disputeUintVars[keccak256("disputeRounds")];i++){
                    uint256 _id = disp.disputeUintVars[keccak256(abi.encodePacked(disp.disputeUintVars[keccak256("disputeRounds")]-i))];
                    if(_id != 0){
                        last = self.disputesById[_id];//handling if happens during an upgrade
                    }
                    TellorTransfer.doTransfer(self,address(this),last.reportedMiner,self.disputesById[_id].disputeUintVars[keccak256("fee")]);
                }
            }
    }

    /**
    * @dev This function upates the minimun dispute fee as a function of the amount
    * of staked miners
    */
    function updateMinDisputeFee(TellorStorage.TellorStorageStruct storage self) public {
        self.uintVars[keccak256("disputeFee")] = SafeMath.max(15e18,
                (self.uintVars[keccak256("stakeAmount")]-
                (self.uintVars[keccak256("stakeAmount")]* 
                (SafeMath.min(self.uintVars[keccak256("targetMiners")],self.uintVars[keccak256("stakerCount")])*1000)/
                self.uintVars[keccak256("targetMiners")])/1000));
    }
}


/**
* itle Tellor Stake
* @dev Contains the methods related to miners staking and unstaking. Tellor.sol
* references this library for function's logic.
*/

library TellorStake {
    event NewStake(address indexed _sender); //Emits upon new staker
    event StakeWithdrawn(address indexed _sender); //Emits when a staker is now no longer staked
    event StakeWithdrawRequested(address indexed _sender); //Emits when a staker begins the 7 day withdraw period

    /*Functions*/

    /**
    * @dev This function stakes the five initial miners, sets the supply and all the constant variables.
    * This function is called by the constructor function on TellorMaster.sol
    */
    function init(TellorStorage.TellorStorageStruct storage self) public {
        require(self.uintVars[keccak256("decimals")] == 0, "Too many decimals");
        //Give this contract 6000 Tellor Tributes so that it can stake the initial 6 miners
        TellorTransfer.updateBalanceAtNow(self.balances[address(this)], 2**256 - 1 - 6000e18);

        // //the initial 5 miner addresses are specfied below
        // //changed payable[5] to 6
        address payable[6] memory _initalMiners = [
            address(0xE037EC8EC9ec423826750853899394dE7F024fee),
            address(0xcdd8FA31AF8475574B8909F135d510579a8087d3),
            address(0xb9dD5AfD86547Df817DA2d0Fb89334A6F8eDd891),
            address(0x230570cD052f40E14C14a81038c6f3aa685d712B),
            address(0x3233afA02644CCd048587F8ba6e99b3C00A34DcC),
            address(0xe010aC6e0248790e08F42d5F697160DEDf97E024)
        ];
        //Stake each of the 5 miners specified above
        for (uint256 i = 0; i < 6; i++) {
            //6th miner to allow for dispute
            //Miner balance is set at 1000e18 at the block that this function is ran
            TellorTransfer.updateBalanceAtNow(self.balances[_initalMiners[i]], 1000e18);

            newStake(self, _initalMiners[i]);
        }

        //update the total suppply
        self.uintVars[keccak256("total_supply")] += 6000e18; //6th miner to allow for dispute
        //set Constants
        self.uintVars[keccak256("decimals")] = 18;
        self.uintVars[keccak256("targetMiners")] = 200;
        self.uintVars[keccak256("stakeAmount")] = 1000e18;
        self.uintVars[keccak256("disputeFee")] = 970e18;
        self.uintVars[keccak256("timeTarget")] = 600;
        self.uintVars[keccak256("timeOfLastNewValue")] = now - (now % self.uintVars[keccak256("timeTarget")]);
        self.uintVars[keccak256("difficulty")] = 1;
    }

    /**
    * @dev This function allows stakers to request to withdraw their stake (no longer stake)
    * once they lock for withdraw(stakes.currentStatus = 2) they are locked for 7 days before they
    * can withdraw the deposit
    */
    function requestStakingWithdraw(TellorStorage.TellorStorageStruct storage self) public {
        TellorStorage.StakeInfo storage stakes = self.stakerDetails[msg.sender];
        //Require that the miner is staked
        require(stakes.currentStatus == 1, "Miner is not staked");

        //Change the miner staked to locked to be withdrawStake
        stakes.currentStatus = 2;

        //Change the startDate to now since the lock up period begins now
        //and the miner can only withdraw 7 days later from now(check the withdraw function)
        stakes.startDate = now - (now % 86400);

        //Reduce the staker count
        self.uintVars[keccak256("stakerCount")] -= 1;

        //Update the minimum dispute fee that is based on the number of stakers 
        TellorDispute.updateMinDisputeFee(self);
        emit StakeWithdrawRequested(msg.sender);
    }

    /**
    * @dev This function allows users to withdraw their stake after a 7 day waiting period from request
    */
    function withdrawStake(TellorStorage.TellorStorageStruct storage self) public {
        TellorStorage.StakeInfo storage stakes = self.stakerDetails[msg.sender];
        //Require the staker has locked for withdraw(currentStatus ==2) and that 7 days have
        //passed by since they locked for withdraw
        require(now - (now % 86400) - stakes.startDate >= 7 days, "7 days didn't pass");
        require(stakes.currentStatus == 2, "Miner was not locked for withdrawal");
        stakes.currentStatus = 0;
        emit StakeWithdrawn(msg.sender);
    }

    /**
    * @dev This function allows miners to deposit their stake.
    */
    function depositStake(TellorStorage.TellorStorageStruct storage self) public {
        newStake(self, msg.sender);
        //self adjusting disputeFee
        TellorDispute.updateMinDisputeFee(self);
    }

    /**
    * @dev This function is used by the init function to succesfully stake the initial 5 miners.
    * The function updates their status/state and status start date so they are locked it so they can't withdraw
    * and updates the number of stakers in the system.
    */
    function newStake(TellorStorage.TellorStorageStruct storage self, address staker) internal {
        require(TellorTransfer.balanceOf(self, staker) >= self.uintVars[keccak256("stakeAmount")], "Balance is lower than stake amount");
        //Ensure they can only stake if they are not currrently staked or if their stake time frame has ended
        //and they are currently locked for witdhraw
        require(self.stakerDetails[staker].currentStatus == 0 || self.stakerDetails[staker].currentStatus == 2, "Miner is in the wrong state");
        self.uintVars[keccak256("stakerCount")] += 1;
        self.stakerDetails[staker] = TellorStorage.StakeInfo({
            currentStatus: 1, //this resets their stake start date to today
            startDate: now - (now % 86400)
        });
        emit NewStake(staker);
    }

    /**
    * @dev Getter function for the requestId being mined 
    * @return variables for the current minin event: Challenge, 5 RequestId, difficulty and Totaltips
    */
    function getNewCurrentVariables(TellorStorage.TellorStorageStruct storage self) internal view returns(bytes32 _challenge,uint[5] memory _requestIds,uint256 _difficutly, uint256 _tip){
        for(uint i=0;i<5;i++){
            _requestIds[i] =  self.currentMiners[i].value;
        }
        return (self.currentChallenge,_requestIds,self.uintVars[keccak256("difficulty")],self.uintVars[keccak256("currentTotalTips")]);
    }

    /**
    * @dev Getter function for next requestId on queue/request with highest payout at time the function is called
    * @return onDeck/info on top 5 requests(highest payout)-- RequestId, Totaltips
    */
    function getNewVariablesOnDeck(TellorStorage.TellorStorageStruct storage self) internal view returns (uint256[5] memory idsOnDeck, uint256[5] memory tipsOnDeck) {
        idsOnDeck = getTopRequestIDs(self);
        for(uint i = 0;i<5;i++){
            tipsOnDeck[i] = self.requestDetails[idsOnDeck[i]].apiUintVars[keccak256("totalTip")];
        }
    }

    /**
    * @dev Getter function for the top 5 requests with highest payouts. This function is used within the getNewVariablesOnDeck function
    * @return uint256[5] is an array with the top 5(highest payout) _requestIds at the time the function is called
    */
    function getTopRequestIDs(TellorStorage.TellorStorageStruct storage self) internal view returns (uint256[5] memory _requestIds) {
        uint256[5] memory _max;
        uint256[5] memory _index;
        (_max, _index) = Utilities.getMax5(self.requestQ);
        for(uint i=0;i<5;i++){
            if(_max[i] > 0){
                _requestIds[i] = self.requestIdByRequestQIndex[_index[i]];
            }
            else{
                _requestIds[i] = self.currentMiners[4-i].value;
            }
        }
    }


   
}



//Slightly modified SafeMath library - includes a min and max function, removes useless div function
library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        assert(c >= a);
        return c;
    }

    function add(int256 a, int256 b) internal pure returns (int256 c) {
        if (b > 0) {
            c = a + b;
            assert(c >= a);
        } else {
            c = a + b;
            assert(c <= a);
        }
    }

    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    function max(int256 a, int256 b) internal pure returns (uint256) {
        return a > b ? uint256(a) : uint256(b);
    }

    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a * b;
        assert(a == 0 || c / a == b);
        return c;
    }

    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        assert(b <= a);
        return a - b;
    }

    function sub(int256 a, int256 b) internal pure returns (int256 c) {
        if (b > 0) {
            c = a - b;
            assert(c <= a);
        } else {
            c = a - b;
            assert(c >= a);
        }

    }
}


/**
 * @title Tellor Oracle Storage Library
 * @dev Contains all the variables/structs used by Tellor
 */

library TellorStorage {
    //Internal struct for use in proof-of-work submission
    struct Details {
        uint256 value;
        address miner;
    }

    struct Dispute {
        bytes32 hash; //unique hash of dispute: keccak256(_miner,_requestId,_timestamp)
        int256 tally; //current tally of votes for - against measure
        bool executed; //is the dispute settled
        bool disputeVotePassed; //did the vote pass?
        bool isPropFork; //true for fork proposal NEW
        address reportedMiner; //miner who alledgedly submitted the 'bad value' will get disputeFee if dispute vote fails
        address reportingParty; //miner reporting the 'bad value'-pay disputeFee will get reportedMiner's stake if dispute vote passes
        address proposedForkAddress; //new fork address (if fork proposal)
        mapping(bytes32 => uint256) disputeUintVars;
        //Each of the variables below is saved in the mapping disputeUintVars for each disputeID
        //e.g. TellorStorageStruct.DisputeById[disputeID].disputeUintVars[keccak256("requestId")]
        //These are the variables saved in this mapping:
        // uint keccak256("requestId");//apiID of disputed value
        // uint keccak256("timestamp");//timestamp of distputed value
        // uint keccak256("value"); //the value being disputed
        // uint keccak256("minExecutionDate");//7 days from when dispute initialized
        // uint keccak256("numberOfVotes");//the number of parties who have voted on the measure
        // uint keccak256("blockNumber");// the blocknumber for which votes will be calculated from
        // uint keccak256("minerSlot"); //index in dispute array
        // uint keccak256("fee"); //fee paid corresponding to dispute
        mapping(address => bool) voted; //mapping of address to whether or not they voted
    }

    struct StakeInfo {
        uint256 currentStatus; //0-not Staked, 1=Staked, 2=LockedForWithdraw 3= OnDispute
        uint256 startDate; //stake start date
    }

    //Internal struct to allow balances to be queried by blocknumber for voting purposes
    struct Checkpoint {
        uint128 fromBlock; // fromBlock is the block number that the value was generated from
        uint128 value; // value is the amount of tokens at a specific block number
    }

    struct Request {
        string queryString; //id to string api
        string dataSymbol; //short name for api request
        bytes32 queryHash; //hash of api string and granularity e.g. keccak256(abi.encodePacked(_sapi,_granularity))
        uint256[] requestTimestamps; //array of all newValueTimestamps requested
        mapping(bytes32 => uint256) apiUintVars;
        //Each of the variables below is saved in the mapping apiUintVars for each api request
        //e.g. requestDetails[_requestId].apiUintVars[keccak256("totalTip")]
        //These are the variables saved in this mapping:
        // uint keccak256("granularity"); //multiplier for miners
        // uint keccak256("requestQPosition"); //index in requestQ
        // uint keccak256("totalTip");//bonus portion of payout
        mapping(uint256 => uint256) minedBlockNum; //[apiId][minedTimestamp]=>block.number
        //This the time series of finalValues stored by the contract where uint UNIX timestamp is mapped to value
        mapping(uint256 => uint256) finalValues;
        mapping(uint256 => bool) inDispute; //checks if API id is in dispute or finalized.
        mapping(uint256 => address[5]) minersByValue;
        mapping(uint256 => uint256[5]) valuesByTimestamp;
    }

    struct TellorStorageStruct {
        bytes32 currentChallenge; //current challenge to be solved
        uint256[51] requestQ; //uint50 array of the top50 requests by payment amount
        uint256[] newValueTimestamps; //array of all timestamps requested
        Details[5] currentMiners; //This struct is for organizing the five mined values to find the median
        mapping(bytes32 => address) addressVars;
        //Address fields in the Tellor contract are saved the addressVars mapping
        //e.g. addressVars[keccak256("tellorContract")] = address
        //These are the variables saved in this mapping:
        // address keccak256("tellorContract");//Tellor address
        // address  keccak256("_owner");//Tellor Owner address
        // address  keccak256("_deity");//Tellor Owner that can do things at will
        mapping(bytes32 => uint256) uintVars;
        //uint fields in the Tellor contract are saved the uintVars mapping
        //e.g. uintVars[keccak256("decimals")] = uint
        //These are the variables saved in this mapping:
        // keccak256("decimals");    //18 decimal standard ERC20
        // keccak256("disputeFee");//cost to dispute a mined value
        // keccak256("disputeCount");//totalHistoricalDisputes
        // keccak256("total_supply"); //total_supply of the token in circulation
        // keccak256("stakeAmount");//stakeAmount for miners (we can cut gas if we just hardcode it in...or should it be variable?)
        // keccak256("stakerCount"); //number of parties currently staked
        // keccak256("timeOfLastNewValue"); // time of last challenge solved
        // keccak256("difficulty"); // Difficulty of current block
        // keccak256("currentTotalTips"); //value of highest api/timestamp PayoutPool
        // keccak256("currentRequestId"); //API being mined--updates with the ApiOnQ Id
        // keccak256("requestCount"); // total number of requests through the system
        // keccak256("slotProgress");//Number of miners who have mined this value so far
        // keccak256("miningReward");//Mining Reward in PoWo tokens given to all miners per value
        // keccak256("timeTarget"); //The time between blocks (mined Oracle values)
        //This is a boolean that tells you if a given challenge has been completed by a given miner
        mapping(bytes32 => mapping(address => bool)) minersByChallenge;
        mapping(uint256 => uint256) requestIdByTimestamp; //minedTimestamp to apiId
        mapping(uint256 => uint256) requestIdByRequestQIndex; //link from payoutPoolIndex (position in payout pool array) to apiId
        mapping(uint256 => Dispute) disputesById; //disputeId=> Dispute details
        mapping(address => Checkpoint[]) balances; //balances of a party given blocks
        mapping(address => mapping(address => uint256)) allowed; //allowance for a given party and approver
        mapping(address => StakeInfo) stakerDetails; //mapping from a persons address to their staking info
        mapping(uint256 => Request) requestDetails; //mapping of apiID to details
        mapping(bytes32 => uint256) requestIdByQueryHash; // api bytes32 gets an id = to count of requests array
        mapping(bytes32 => uint256) disputeIdByDisputeHash; //maps a hash to an ID for each dispute
    }
}

//Functions for retrieving min and Max in 51 length array (requestQ)
//Taken partly from: https://github.com/modular-network/ethereum-libraries-array-utils/blob/master/contracts/Array256Lib.sol

library Utilities {
    /**
    * @dev Returns the minimum value in an array.
    * The zero position here is ignored. It's because 
    * there's no null in solidity and we map each address 
    * to an index in this array. So when we get 51 parties, 
    * and one person is kicked out of the top 50, we 
    * assign them a 0, and when you get mined and pulled 
    * out of the top 50, also a 0. So then lot's of parties 
    * will have zero as the index so we made the array run 
    * from 1-51 with zero as nothing.
    * @param data is the array to calculate max from
    * @return max amount and its index within the array
    */
    function getMax(uint256[51] memory data) internal pure returns (uint256 max, uint256 maxIndex) {
        max = data[1];
        maxIndex = 1;
        for (uint256 i = 1; i < data.length; i++) {
            if (data[i] > max) {
                max = data[i];
                maxIndex = i;
            }
        }
    }

    /**
    * @dev Returns the minimum value in an array.
    * @param data is the array to calculate min from
    * @return min amount and its index within the array
    */
    function getMin(uint256[51] memory data) internal pure returns (uint256 min, uint256 minIndex) {
        minIndex = data.length - 1;
        min = data[minIndex];
        for (uint256 i = data.length - 1; i > 0; i--) {
            if (data[i] < min) {
                min = data[i];
                minIndex = i;
            }
        }
    }

    /**
    * @dev Returns the 5 requestsId's with the top payouts in an array.
    * @param data is the array to get the top 5 from
    * @return to 5 max amounts and their respective index within the array
    */
    function getMax5(uint256[51] memory data) internal pure returns (uint256[5] memory max, uint256[5] memory maxIndex) {
        uint256 min5 = data[1];
        uint256 minI = 1;
        for(uint256 j=0;j<5;j++){
            max[j]= data[j+1];//max[0]=data[1]
            maxIndex[j] = j+1;//maxIndex[0]= 1
            if(max[j] < min5){
                min5 = max[j];
                minI = j;
            }
        }
        for(uint256 i = 5; i < data.length; i++) {
            if (data[i] > min5) {
                max[minI] = data[i];
                maxIndex[minI] = i;
                min5 = data[i];
                for(uint256 j=0;j<5;j++){
                    if(max[j] < min5){
                        min5 = max[j];
                        minI = j;
                    }
                }
            }
        }
    }
}


/**
* @title Tellor Getters Library
* @dev This is the getter library for all variables in the Tellor Tributes system. TellorGetters references this
* libary for the getters logic
*/
library TellorGettersLibrary {
    using SafeMath for uint256;

    event NewTellorAddress(address _newTellor); //emmited when a proposed fork is voted true

    /*Functions*/

    //The next two functions are onlyOwner functions.  For Tellor to be truly decentralized, we will need to transfer the Deity to the 0 address.
    //Only needs to be in library
    /**
    * @dev This function allows us to set a new Deity (or remove it)
    * @param _newDeity address of the new Deity of the tellor system
    */
    function changeDeity(TellorStorage.TellorStorageStruct storage self, address _newDeity) internal {
        require(self.addressVars[keccak256("_deity")] == msg.sender, "Sender is not deity");
        self.addressVars[keccak256("_deity")] = _newDeity;
    }

    //Only needs to be in library
    /**
    * @dev This function allows the deity to upgrade the Tellor System
    * @param _tellorContract address of new updated TellorCore contract
    */
    function changeTellorContract(TellorStorage.TellorStorageStruct storage self, address _tellorContract) internal {
        require(self.addressVars[keccak256("_deity")] == msg.sender, "Sender is not deity");
        self.addressVars[keccak256("tellorContract")] = _tellorContract;
        emit NewTellorAddress(_tellorContract);
    }

    /*Tellor Getters*/

    /**
    * @dev This function tells you if a given challenge has been completed by a given miner
    * @param _challenge the challenge to search for
    * @param _miner address that you want to know if they solved the challenge
    * @return true if the _miner address provided solved the
    */
    function didMine(TellorStorage.TellorStorageStruct storage self, bytes32 _challenge, address _miner) public view returns (bool) {
        return self.minersByChallenge[_challenge][_miner];
    }

    /**
    * @dev Checks if an address voted in a dispute
    * @param _disputeId to look up
    * @param _address of voting party to look up
    * @return bool of whether or not party voted
    */
    function didVote(TellorStorage.TellorStorageStruct storage self, uint256 _disputeId, address _address) internal view returns (bool) {
        return self.disputesById[_disputeId].voted[_address];
    }

    /**
    * @dev allows Tellor to read data from the addressVars mapping
    * @param _data is the keccak256("variable_name") of the variable that is being accessed.
    * These are examples of how the variables are saved within other functions:
    * addressVars[keccak256("_owner")]
    * addressVars[keccak256("tellorContract")]
    */
    function getAddressVars(TellorStorage.TellorStorageStruct storage self, bytes32 _data) internal view returns (address) {
        return self.addressVars[_data];
    }

    /**
    * @dev Gets all dispute variables
    * @param _disputeId to look up
    * @return bytes32 hash of dispute
    * @return bool executed where true if it has been voted on
    * @return bool disputeVotePassed
    * @return bool isPropFork true if the dispute is a proposed fork
    * @return address of reportedMiner
    * @return address of reportingParty
    * @return address of proposedForkAddress
    * @return uint of requestId
    * @return uint of timestamp
    * @return uint of value
    * @return uint of minExecutionDate
    * @return uint of numberOfVotes
    * @return uint of blocknumber
    * @return uint of minerSlot
    * @return uint of quorum
    * @return uint of fee
    * @return int count of the current tally
    */
    function getAllDisputeVars(TellorStorage.TellorStorageStruct storage self, uint256 _disputeId)
        internal
        view
        returns (bytes32, bool, bool, bool, address, address, address, uint256[9] memory, int256)
    {
        TellorStorage.Dispute storage disp = self.disputesById[_disputeId];
        return (
            disp.hash,
            disp.executed,
            disp.disputeVotePassed,
            disp.isPropFork,
            disp.reportedMiner,
            disp.reportingParty,
            disp.proposedForkAddress,
            [
                disp.disputeUintVars[keccak256("requestId")],
                disp.disputeUintVars[keccak256("timestamp")],
                disp.disputeUintVars[keccak256("value")],
                disp.disputeUintVars[keccak256("minExecutionDate")],
                disp.disputeUintVars[keccak256("numberOfVotes")],
                disp.disputeUintVars[keccak256("blockNumber")],
                disp.disputeUintVars[keccak256("minerSlot")],
                disp.disputeUintVars[keccak256("quorum")],
                disp.disputeUintVars[keccak256("fee")]
            ],
            disp.tally
        );
    }

    /**
    * @dev Getter function for variables for the requestId being currently mined(currentRequestId)
    * @return current challenge, curretnRequestId, level of difficulty, api/query string, and granularity(number of decimals requested), total tip for the request
    */
    function getCurrentVariables(TellorStorage.TellorStorageStruct storage self)
        internal
        view
        returns (bytes32, uint256, uint256, string memory, uint256, uint256)
    {
        return (
            self.currentChallenge,
            self.uintVars[keccak256("currentRequestId")],
            self.uintVars[keccak256("difficulty")],
            self.requestDetails[self.uintVars[keccak256("currentRequestId")]].queryString,
            self.requestDetails[self.uintVars[keccak256("currentRequestId")]].apiUintVars[keccak256("granularity")],
            self.requestDetails[self.uintVars[keccak256("currentRequestId")]].apiUintVars[keccak256("totalTip")]
        );
    }

    /**
    * @dev Checks if a given hash of miner,requestId has been disputed
    * @param _hash is the sha256(abi.encodePacked(_miners[2],_requestId));
    * @return uint disputeId
    */
    function getDisputeIdByDisputeHash(TellorStorage.TellorStorageStruct storage self, bytes32 _hash) internal view returns (uint256) {
        return self.disputeIdByDisputeHash[_hash];
    }

    /**
    * @dev Checks for uint variables in the disputeUintVars mapping based on the disuputeId
    * @param _disputeId is the dispute id;
    * @param _data the variable to pull from the mapping. _data = keccak256("variable_name") where variable_name is
    * the variables/strings used to save the data in the mapping. The variables names are
    * commented out under the disputeUintVars under the Dispute struct
    * @return uint value for the bytes32 data submitted
    */
    function getDisputeUintVars(TellorStorage.TellorStorageStruct storage self, uint256 _disputeId, bytes32 _data)
        internal
        view
        returns (uint256)
    {
        return self.disputesById[_disputeId].disputeUintVars[_data];
    }

    /**
    * @dev Gets the a value for the latest timestamp available
    * @return value for timestamp of last proof of work submited
    * @return true if the is a timestamp for the lastNewValue
    */
    function getLastNewValue(TellorStorage.TellorStorageStruct storage self) internal view returns (uint256, bool) {
        return (
            retrieveData(
                self,
                self.requestIdByTimestamp[self.uintVars[keccak256("timeOfLastNewValue")]],
                self.uintVars[keccak256("timeOfLastNewValue")]
            ),
            true
        );
    }

    /**
    * @dev Gets the a value for the latest timestamp available
    * @param _requestId being requested
    * @return value for timestamp of last proof of work submited and if true if it exist or 0 and false if it doesn't
    */
    function getLastNewValueById(TellorStorage.TellorStorageStruct storage self, uint256 _requestId) internal view returns (uint256, bool) {
        TellorStorage.Request storage _request = self.requestDetails[_requestId];
        if (_request.requestTimestamps.length > 0) {
            return (retrieveData(self, _requestId, _request.requestTimestamps[_request.requestTimestamps.length - 1]), true);
        } else {
            return (0, false);
        }
    }

    /**
    * @dev Gets blocknumber for mined timestamp
    * @param _requestId to look up
    * @param _timestamp is the timestamp to look up blocknumber
    * @return uint of the blocknumber which the dispute was mined
    */
    function getMinedBlockNum(TellorStorage.TellorStorageStruct storage self, uint256 _requestId, uint256 _timestamp)
        internal
        view
        returns (uint256)
    {
        return self.requestDetails[_requestId].minedBlockNum[_timestamp];
    }

    /**
    * @dev Gets the 5 miners who mined the value for the specified requestId/_timestamp
    * @param _requestId to look up
    * @param _timestamp is the timestamp to look up miners for
    * @return the 5 miners' addresses
    */
    function getMinersByRequestIdAndTimestamp(TellorStorage.TellorStorageStruct storage self, uint256 _requestId, uint256 _timestamp)
        internal
        view
        returns (address[5] memory)
    {
        return self.requestDetails[_requestId].minersByValue[_timestamp];
    }

    /**
    * @dev Get the name of the token
    * @return string of the token name
    */
/*    function getName(TellorStorage.TellorStorageStruct storage self) internal pure returns (string memory) {
        return "Tellor Tributes";
    }*/

    /**
    * @dev Counts the number of values that have been submited for the request
    * if called for the currentRequest being mined it can tell you how many miners have submitted a value for that
    * request so far
    * @param _requestId the requestId to look up
    * @return uint count of the number of values received for the requestId
    */
    function getNewValueCountbyRequestId(TellorStorage.TellorStorageStruct storage self, uint256 _requestId) internal view returns (uint256) {
        return self.requestDetails[_requestId].requestTimestamps.length;
    }

    /**
    * @dev Getter function for the specified requestQ index
    * @param _index to look up in the requestQ array
    * @return uint of reqeuestId
    */
    function getRequestIdByRequestQIndex(TellorStorage.TellorStorageStruct storage self, uint256 _index) internal view returns (uint256) {
        require(_index <= 50, "RequestQ index is above 50");
        return self.requestIdByRequestQIndex[_index];
    }

    /**
    * @dev Getter function for requestId based on timestamp
    * @param _timestamp to check requestId
    * @return uint of reqeuestId
    */
    function getRequestIdByTimestamp(TellorStorage.TellorStorageStruct storage self, uint256 _timestamp) internal view returns (uint256) {
        return self.requestIdByTimestamp[_timestamp];
    }

    /**
    * @dev Getter function for requestId based on the qeuaryHash
    * @param _queryHash hash(of string api and granularity) to check if a request already exists
    * @return uint requestId
    */
    function getRequestIdByQueryHash(TellorStorage.TellorStorageStruct storage self, bytes32 _queryHash) internal view returns (uint256) {
        return self.requestIdByQueryHash[_queryHash];
    }

    /**
    * @dev Getter function for the requestQ array
    * @return the requestQ arrray
    */
    function getRequestQ(TellorStorage.TellorStorageStruct storage self) internal view returns (uint256[51] memory) {
        return self.requestQ;
    }

    /**
    * @dev Allowes access to the uint variables saved in the apiUintVars under the requestDetails struct
    * for the requestId specified
    * @param _requestId to look up
    * @param _data the variable to pull from the mapping. _data = keccak256("variable_name") where variable_name is
    * the variables/strings used to save the data in the mapping. The variables names are
    * commented out under the apiUintVars under the requestDetails struct
    * @return uint value of the apiUintVars specified in _data for the requestId specified
    */
    function getRequestUintVars(TellorStorage.TellorStorageStruct storage self, uint256 _requestId, bytes32 _data)
        internal
        view
        returns (uint256)
    {
        return self.requestDetails[_requestId].apiUintVars[_data];
    }

    /**
    * @dev Gets the API struct variables that are not mappings
    * @param _requestId to look up
    * @return string of api to query
    * @return string of symbol of api to query
    * @return bytes32 hash of string
    * @return bytes32 of the granularity(decimal places) requested
    * @return uint of index in requestQ array
    * @return uint of current payout/tip for this requestId
    */
    function getRequestVars(TellorStorage.TellorStorageStruct storage self, uint256 _requestId)
        internal
        view
        returns (string memory, string memory, bytes32, uint256, uint256, uint256)
    {
        TellorStorage.Request storage _request = self.requestDetails[_requestId];
        return (
            _request.queryString,
            _request.dataSymbol,
            _request.queryHash,
            _request.apiUintVars[keccak256("granularity")],
            _request.apiUintVars[keccak256("requestQPosition")],
            _request.apiUintVars[keccak256("totalTip")]
        );
    }

    /**
    * @dev This function allows users to retireve all information about a staker
    * @param _staker address of staker inquiring about
    * @return uint current state of staker
    * @return uint startDate of staking
    */
    function getStakerInfo(TellorStorage.TellorStorageStruct storage self, address _staker) internal view returns (uint256, uint256) {
        return (self.stakerDetails[_staker].currentStatus, self.stakerDetails[_staker].startDate);
    }

    /**
    * @dev Gets the 5 miners who mined the value for the specified requestId/_timestamp
    * @param _requestId to look up
    * @param _timestamp is the timestampt to look up miners for
    * @return address[5] array of 5 addresses ofminers that mined the requestId
    */
    function getSubmissionsByTimestamp(TellorStorage.TellorStorageStruct storage self, uint256 _requestId, uint256 _timestamp)
        internal
        view
        returns (uint256[5] memory)
    {
        return self.requestDetails[_requestId].valuesByTimestamp[_timestamp];
    }

    /**
    * @dev Get the symbol of the token
    * @return string of the token symbol
    */
/*    function getSymbol(TellorStorage.TellorStorageStruct storage self) internal pure returns (string memory) {
        return "TT";
    }*/

    /**
    * @dev Gets the timestamp for the value based on their index
    * @param _requestID is the requestId to look up
    * @param _index is the value index to look up
    * @return uint timestamp
    */
    function getTimestampbyRequestIDandIndex(TellorStorage.TellorStorageStruct storage self, uint256 _requestID, uint256 _index)
        internal
        view
        returns (uint256)
    {
        return self.requestDetails[_requestID].requestTimestamps[_index];
    }

    /**
    * @dev Getter for the variables saved under the TellorStorageStruct uintVars variable
    * @param _data the variable to pull from the mapping. _data = keccak256("variable_name") where variable_name is
    * the variables/strings used to save the data in the mapping. The variables names are
    * commented out under the uintVars under the TellorStorageStruct struct
    * This is an example of how data is saved into the mapping within other functions:
    * self.uintVars[keccak256("stakerCount")]
    * @return uint of specified variable
    */
    function getUintVar(TellorStorage.TellorStorageStruct storage self, bytes32 _data) internal view returns (uint256) {
        return self.uintVars[_data];
    }

    /**
    * @dev Getter function for next requestId on queue/request with highest payout at time the function is called
    * @return onDeck/info on request with highest payout-- RequestId, Totaltips, and API query string
    */
    function getVariablesOnDeck(TellorStorage.TellorStorageStruct storage self) internal view returns (uint256, uint256, string memory) {
        uint256 newRequestId = getTopRequestID(self);
        return (
            newRequestId,
            self.requestDetails[newRequestId].apiUintVars[keccak256("totalTip")],
            self.requestDetails[newRequestId].queryString
        );
    }

    /**
    * @dev Getter function for the request with highest payout. This function is used within the getVariablesOnDeck function
    * @return uint _requestId of request with highest payout at the time the function is called
    */
    function getTopRequestID(TellorStorage.TellorStorageStruct storage self) internal view returns (uint256 _requestId) {
        uint256 _max;
        uint256 _index;
        (_max, _index) = Utilities.getMax(self.requestQ);
        _requestId = self.requestIdByRequestQIndex[_index];
    }

    /**
    * @dev Gets the 5 miners who mined the value for the specified requestId/_timestamp
    * @param _requestId to looku p
    * @param _timestamp is the timestamp to look up miners for
    * @return bool true if requestId/timestamp is under dispute
    */
    function isInDispute(TellorStorage.TellorStorageStruct storage self, uint256 _requestId, uint256 _timestamp) internal view returns (bool) {
        return self.requestDetails[_requestId].inDispute[_timestamp];
    }

    /**
    * @dev Retreive value from oracle based on requestId/timestamp
    * @param _requestId being requested
    * @param _timestamp to retreive data/value from
    * @return uint value for requestId/timestamp submitted
    */
    function retrieveData(TellorStorage.TellorStorageStruct storage self, uint256 _requestId, uint256 _timestamp)
        internal
        view
        returns (uint256)
    {
        return self.requestDetails[_requestId].finalValues[_timestamp];
    }

    /**
    * @dev Getter for the total_supply of oracle tokens
    * @return uint total supply
    */
    function totalSupply(TellorStorage.TellorStorageStruct storage self) internal view returns (uint256) {
        return self.uintVars[keccak256("total_supply")];
    }

}


/**
 * @title Tellor Oracle System Library
 * @dev Contains the functions' logic for the Tellor contract where miners can submit the proof of work
 * along with the value and smart contracts can requestData and tip miners.
 */
library TellorLibrary {
    using SafeMath for uint256;

    event TipAdded(address indexed _sender, uint256 indexed _requestId, uint256 _tip, uint256 _totalTips);
    //emits when a new challenge is created (either on mined block or when a new request is pushed forward on waiting system)
    event NewChallenge(
        bytes32 indexed _currentChallenge,
        uint256[5] _currentRequestId,
        uint256 _difficulty,
        uint256 _totalTips
    );
    //Emits upon a successful Mine, indicates the blocktime at point of the mine and the value mined
    event NewValue(uint256[5] _requestId, uint256 _time, uint256[5] _value, uint256 _totalTips, bytes32 indexed _currentChallenge);
    //Emits upon each mine (5 total) and shows the miner, nonce, and value submitted
    event NonceSubmitted(address indexed _miner, string _nonce, uint256[5] _requestId, uint256[5] _value, bytes32 indexed _currentChallenge);
    event OwnershipTransferred(address indexed _previousOwner, address indexed _newOwner);
    event OwnershipProposed(address indexed _previousOwner, address indexed _newOwner);

    /*Functions*/
    /**
    * @dev Add tip to Request value from oracle
    * @param _requestId being requested to be mined
    * @param _tip amount the requester is willing to pay to be get on queue. Miners
    * mine the onDeckQueryHash, or the api with the highest payout pool
    */
    function addTip(TellorStorage.TellorStorageStruct storage self, uint256 _requestId, uint256 _tip) public {
        require(_requestId > 0, "RequestId is 0");
        require(_tip > 0, "Tip should be greater than 0");
        require(_requestId <= self.uintVars[keccak256("requestCount")]+1, "RequestId is not less than count");
        if(_requestId > self.uintVars[keccak256("requestCount")]){
            self.uintVars[keccak256("requestCount")]++;
        }
        TellorTransfer.doTransfer(self, msg.sender, address(this), _tip);
        //Update the information for the request that should be mined next based on the tip submitted
        updateOnDeck(self, _requestId, _tip);
        emit TipAdded(msg.sender, _requestId, _tip, self.requestDetails[_requestId].apiUintVars[keccak256("totalTip")]);
    }

   /**
    * @dev This fucntion is called by submitMiningSolution and adjusts the difficulty, sorts and stores the first
    * 5 values received, pays the miners, the dev share and assigns a new challenge
    * @param _nonce or solution for the PoW  for the requestId
    * @param _requestId for the current request being mined
    */
    function newBlock(TellorStorage.TellorStorageStruct storage self, string memory _nonce, uint256[5] memory _requestId) public {
        TellorStorage.Request storage _tblock = self.requestDetails[self.uintVars[keccak256("_tblock")]];
        // If the difference between the timeTarget and how long it takes to solve the challenge this updates the challenge
        //difficulty up or donw by the difference between the target time and how long it took to solve the prevous challenge
        //otherwise it sets it to 1
        int256 _change = int256(SafeMath.min(1200, (now - self.uintVars[keccak256("timeOfLastValue")])));
        _change = (int256(self.uintVars[keccak256("difficulty")]) * (int256(self.uintVars[keccak256("timeTarget")]) - _change)) / 4000;
        if (_change < 2 && _change > -2) {
            if (_change >= 0) {
                _change = 1;
            } else {
                _change = -1;
            }
        }

        if ((int256(self.uintVars[keccak256("difficulty")]) + _change) <= 0) {
            self.uintVars[keccak256("difficulty")] = 1;
        } else {
            self.uintVars[keccak256("difficulty")] = uint256(int256(self.uintVars[keccak256("difficulty")]) + _change);
        }
        //Sets time of value submission rounded to 1 minute
        uint256 _timeOfLastNewValue = now - (now % 1 minutes);
        self.uintVars[keccak256("timeOfLastNewValue")] = _timeOfLastNewValue;
        uint[5] memory a; 
        for (uint k = 0; k < 5; k++) {
            a =  _tblock.valuesByTimestamp[k];
            address[5] memory b = _tblock.minersByValue[1];
            for (uint i = 1; i < 5; i++) {
                uint256 temp = a[i];
                address temp2 = b[i];
                uint256 j = i;
                while (j > 0 && temp < a[j - 1]) {
                    a[j] = a[j - 1];
                    b[j] = b[j - 1];
                    j--;
                }
                if (j < i) {
                    a[j] = temp;
                    b[j] = temp2;
                }
            }
            TellorStorage.Request storage _request = self.requestDetails[_requestId[k]];
            //Save the official(finalValue), timestamp of it, 5 miners and their submitted values for it, and its block number
            _request.finalValues[_timeOfLastNewValue] = a[2];
            _request.requestTimestamps.push(_timeOfLastNewValue);
            //these are miners by timestamp
            _request.minersByValue[_timeOfLastNewValue] = [b[0], b[1], b[2], b[3], b[4]];
            _request.valuesByTimestamp[_timeOfLastNewValue] = [a[0],a[1],a[2],a[3],a[4]];
            _request.minedBlockNum[_timeOfLastNewValue] = block.number;
            _request.apiUintVars[keccak256("totalTip")] = 0;
        }
            emit NewValue(
                _requestId,
                _timeOfLastNewValue,
                a,
                self.uintVars[keccak256("runningTips")],//what should this be?
                self.currentChallenge
            );
        //map the timeOfLastValue to the requestId that was just mined
        self.requestIdByTimestamp[_timeOfLastNewValue] = _requestId[0];  ///don't know what to do with this...

        if (self.uintVars[keccak256("currentReward")] > 1e18) {
        self.uintVars[keccak256("currentReward")] = self.uintVars[keccak256("currentReward")] - self.uintVars[keccak256("currentReward")] * 30612633181126/1e18; 
        self.uintVars[keccak256("devShare")] = self.uintVars[keccak256("currentReward")] * 50/100;
        } else {
            self.uintVars[keccak256("currentReward")] = 1e18;
        }
        //update the total supply
        self.uintVars[keccak256("total_supply")] +=  self.uintVars[keccak256("devShare")] + self.uintVars[keccak256("currentReward")]*5 - (self.uintVars[keccak256("currentTotalTips")]);
        //transfer to zero address ( do not need, just leave it in addressThis)
        //TellorTransfer.doTransfer(self, address(this), address(0x0), self.uintVars[keccak256("currentTotalTips")]);
        //pay the dev-share
        TellorTransfer.doTransfer(self, address(this), self.addressVars[keccak256("_owner")],  self.uintVars[keccak256("devShare")]); //The ten there is the devshare
        //add timeOfLastValue to the newValueTimestamps array
        self.newValueTimestamps.push(_timeOfLastNewValue);
        self.uintVars[keccak256("_tblock")] ++;

        uint256[5] memory _topId = TellorStake.getTopRequestIDs(self);
        for(uint i = 0; i< 5;i++){
            self.currentMiners[i].value = _topId[i];
            self.requestQ[self.requestDetails[_topId[i]].apiUintVars[keccak256("requestQPosition")]] = 0;
            self.uintVars[keccak256("currentTotalTips")] += self.requestDetails[_topId[i]].apiUintVars[keccak256("totalTip")];
        }
        //Issue the the next challenge
        self.currentChallenge = keccak256(abi.encodePacked(_nonce, self.currentChallenge, blockhash(block.number - 1))); // Save hash for next proof
        emit NewChallenge(
            self.currentChallenge,
            _topId,
            self.uintVars[keccak256("difficulty")],
            self.uintVars[keccak256("currentTotalTips")]
        );
    }

/**
    * @dev This fucntion is called by submitMiningSolution and adjusts the difficulty, sorts and stores the first
    * 5 values received, pays the miners, the dev share and assigns a new challenge
    * @param _nonce or solution for the PoW  for the requestId
    * @param _requestId for the current request being mined
    ** OLD BUT HAS SWITCH!!!!!!!!
    */
    function newBlock(TellorStorage.TellorStorageStruct storage self, string memory _nonce, uint256 _requestId) public {
        TellorStorage.Request storage _request = self.requestDetails[_requestId];

        // If the difference between the timeTarget and how long it takes to solve the challenge this updates the challenge
        //difficulty up or donw by the difference between the target time and how long it took to solve the prevous challenge
        //otherwise it sets it to 1
        int256 _change = int256(SafeMath.min(1200, (now - self.uintVars[keccak256("timeOfLastNewValue")])));
        _change = (int256(self.uintVars[keccak256("difficulty")]) * (int256(self.uintVars[keccak256("timeTarget")]) - _change)) / 4000;

        if (_change < 2 && _change > -2) {
            if (_change >= 0) {
                _change = 1;
            } else {
                _change = -1;
            }
        }

        if ((int256(self.uintVars[keccak256("difficulty")]) + _change) <= 0) {
            self.uintVars[keccak256("difficulty")] = 1;
        } else {
            self.uintVars[keccak256("difficulty")] = uint256(int256(self.uintVars[keccak256("difficulty")]) + _change);
        }

        //Sets time of value submission rounded to 1 minute
        uint256 _timeOfLastNewValue = now - (now % 1 minutes);
        self.uintVars[keccak256("timeOfLastNewValue")] = _timeOfLastNewValue;

        //The sorting algorithm that sorts the values of the first five values that come in
        TellorStorage.Details[5] memory a = self.currentMiners;
        uint256 i;
        for (i = 1; i < 5; i++) {
            uint256 temp = a[i].value;
            address temp2 = a[i].miner;
            uint256 j = i;
            while (j > 0 && temp < a[j - 1].value) {
                a[j].value = a[j - 1].value;
                a[j].miner = a[j - 1].miner;
                j--;
            }
            if (j < i) {
                a[j].value = temp;
                a[j].miner = temp2;
            }
        }

        //Pay the miners 
        //adjust by payout = payout * ratio 0.000030612633181126/1e18  
        //uint _currentReward = self.uintVars[keccak256("currentReward")];   
        if(self.uintVars[keccak256("currentReward")] == 0){
            self.uintVars[keccak256("currentReward")] = 5e18;
        }
        if (self.uintVars[keccak256("currentReward")] > 1e18) {
        self.uintVars[keccak256("currentReward")] = self.uintVars[keccak256("currentReward")] - self.uintVars[keccak256("currentReward")] * 30612633181126/1e18; 
        self.uintVars[keccak256("devShare")] = self.uintVars[keccak256("currentReward")] * 50/100;
        } else {
            self.uintVars[keccak256("currentReward")] = 1e18;
        }
        for (i = 0; i < 5; i++) {
            TellorTransfer.doTransfer(self, address(this), a[i].miner, self.uintVars[keccak256("currentReward")]  + self.uintVars[keccak256("currentTotalTips")] / 5);
        }
        //update the total supply
        self.uintVars[keccak256("total_supply")] +=  self.uintVars[keccak256("devShare")] + self.uintVars[keccak256("currentReward")]*5 ;
        //pay the dev-share
        TellorTransfer.doTransfer(self, address(this), self.addressVars[keccak256("_owner")],  self.uintVars[keccak256("devShare")]); //The ten there is the devshare
        //Save the official(finalValue), timestamp of it, 5 miners and their submitted values for it, and its block number
        _request.finalValues[_timeOfLastNewValue] = a[2].value;
        _request.requestTimestamps.push(_timeOfLastNewValue);
        //these are miners by timestamp
        _request.minersByValue[_timeOfLastNewValue] = [a[0].miner, a[1].miner, a[2].miner, a[3].miner, a[4].miner];
        _request.valuesByTimestamp[_timeOfLastNewValue] = [a[0].value, a[1].value, a[2].value, a[3].value, a[4].value];
        _request.minedBlockNum[_timeOfLastNewValue] = block.number;
        //map the timeOfLastValue to the requestId that was just mined
        self.requestIdByTimestamp[_timeOfLastNewValue] = _requestId;
        //add timeOfLastValue to the newValueTimestamps array
        self.newValueTimestamps.push(_timeOfLastNewValue);
        //re-start the count for the slot progress to zero before the new request mining starts
        self.uintVars[keccak256("slotProgress")] = 0;


        // THIS IS THE NEW PART
        if(self.uintVars[keccak256("timeTarget")] == 600){
            self.uintVars[keccak256("timeTarget")] = 300;
            self.uintVars[keccak256("currentReward")] = self.uintVars[keccak256("currentReward")]/2;
            self.uintVars[keccak256("_tblock")] = 1e18;
            self.uintVars[keccak256("difficulty")] = SafeMath.max(1,self.uintVars[keccak256("difficulty")]/3);
        }
        for(i = 0; i< 5;i++){
            self.currentMiners[i].value = i+1;
            self.requestQ[self.requestDetails[i+1].apiUintVars[keccak256("requestQPosition")]] = 0;
            self.uintVars[keccak256("currentTotalTips")] += self.requestDetails[i+1].apiUintVars[keccak256("totalTip")];
        }
        self.currentChallenge = keccak256(abi.encodePacked(_nonce, self.currentChallenge, blockhash(block.number - 1))); // Save hash for next proof
        emit NewChallenge(
            self.currentChallenge,
            [uint256(1),uint256(2),uint256(3),uint256(4),uint256(5)],
            self.uintVars[keccak256("difficulty")],
            self.uintVars[keccak256("currentTotalTips")]
        );
    }

    /**
    * @dev Proof of work is called by the miner when they submit the solution (proof of work and value)
    * @param _nonce uint submitted by miner
    * @param _requestId the apiId being mined
    * @param _value of api query
    ** OLD!!!!!!!!
    */
    function submitMiningSolution(TellorStorage.TellorStorageStruct storage self, string memory _nonce, uint256 _requestId, uint256 _value)
        public
    {

        require (self.uintVars[keccak256("timeTarget")] == 600, "Contract has upgraded, call new function");
        //require miner is staked
        require(self.stakerDetails[msg.sender].currentStatus == 1, "Miner status is not staker");

        //Check the miner is submitting the pow for the current request Id
        require(_requestId == self.uintVars[keccak256("currentRequestId")], "RequestId is wrong");

        //Saving the challenge information as unique by using the msg.sender
        require(
            uint256(
                sha256(abi.encodePacked(ripemd160(abi.encodePacked(keccak256(abi.encodePacked(self.currentChallenge, msg.sender, _nonce))))))
            ) %
                self.uintVars[keccak256("difficulty")] ==
                0,
            "Incorrect nonce for current challenge"
        );

        //Make sure the miner does not submit a value more than once
        require(self.minersByChallenge[self.currentChallenge][msg.sender] == false, "Miner already submitted the value");

        //Save the miner and value received
        self.currentMiners[self.uintVars[keccak256("slotProgress")]].value = _value;
        self.currentMiners[self.uintVars[keccak256("slotProgress")]].miner = msg.sender;

        //Add to the count how many values have been submitted, since only 5 are taken per request
        self.uintVars[keccak256("slotProgress")]++;

        //Update the miner status to true once they submit a value so they don't submit more than once
        self.minersByChallenge[self.currentChallenge][msg.sender] = true;
        //If 5 values have been received, adjust the difficulty otherwise sort the values until 5 are received
        if (self.uintVars[keccak256("slotProgress")] == 5) {
            newBlock(self, _nonce, _requestId);
        }
    }




    /**
    * @dev Proof of work is called by the miner when they submit the solution (proof of work and value)
    * @param _nonce uint submitted by miner
    * @param _requestId is the array of the 5 PSR's being mined
    * @param _value is an array of 5 values
    */
    function submitMiningSolution(TellorStorage.TellorStorageStruct storage self, string memory _nonce,uint256[5] memory _requestId, uint256[5] memory _value)
        public
    {
        require(self.stakerDetails[msg.sender].currentStatus == 1, "Miner status is not staker");
        //has to be a better way to do this...
        for(uint i=0;i<5;i++){
            require(_requestId[i] ==  self.currentMiners[i].value,"Request ID is wrong");
        }
        TellorStorage.Request storage _tblock = self.requestDetails[self.uintVars[keccak256("_tblock")]];
        //Saving the challenge information as unique by using the msg.sender
        require(uint256(
                sha256(abi.encodePacked(ripemd160(abi.encodePacked(keccak256(abi.encodePacked(self.currentChallenge, msg.sender, _nonce))))))
            ) %
                self.uintVars[keccak256("difficulty")] == 0
                || (now - (now % 1 minutes)) - self.uintVars[keccak256("timeOfLastNewValue")] >= 15 minutes,
            "Incorrect nonce for current challenge"
        );
        require(now - self.uintVars[keccak256(abi.encodePacked(msg.sender))] > 1 hours);

        //Make sure the miner does not submit a value more than once
        require(self.minersByChallenge[self.currentChallenge][msg.sender] == false, "Miner already submitted the value");
        //require the miner did not receive awards in the last hour
        //
        self.uintVars[keccak256(abi.encodePacked(msg.sender))] = now;
        if(self.uintVars[keccak256("slotProgress")] == 0){
            self.uintVars[keccak256("runningTips")] = self.uintVars[keccak256("currentTotalTips")];
        }
        uint _extraTip = (self.uintVars[keccak256("currentTotalTips")]-self.uintVars[keccak256("runningTips")])/(5-self.uintVars[keccak256("slotProgress")]);
        TellorTransfer.doTransfer(self, address(this), msg.sender, self.uintVars[keccak256("currentReward")]  + self.uintVars[keccak256("runningTips")] / 2 / 5 + _extraTip);
        self.uintVars[keccak256("currentTotalTips")] -= _extraTip;

        //Save the miner and value received
        _tblock.minersByValue[1][self.uintVars[keccak256("slotProgress")]]= msg.sender;

        //this will fill the currentMiners array
        for (uint j = 0; j < 5; j++) {
            _tblock.valuesByTimestamp[j][self.uintVars[keccak256("slotProgress")]] = _value[j];

        }
        self.uintVars[keccak256("slotProgress")]++;
        //Update the miner status to true once they submit a value so they don't submit more than once
        self.minersByChallenge[self.currentChallenge][msg.sender] = true;
        emit NonceSubmitted(msg.sender, _nonce, _requestId, _value, self.currentChallenge);
        //If 5 values have been received, adjust the difficulty otherwise sort the values until 5 are received
        if (self.uintVars[keccak256("slotProgress")] == 5) {
            newBlock(self, _nonce, _requestId);
            self.uintVars[keccak256("slotProgress")] = 0;
        }
        
    }

    /**
    * @dev Allows the current owner to propose transfer control of the contract to a
    * newOwner and the ownership is pending until the new owner calls the claimOwnership
    * function
    * @param _pendingOwner The address to transfer ownership to.
    */
    function proposeOwnership(TellorStorage.TellorStorageStruct storage self, address payable _pendingOwner) public {
        require(msg.sender == self.addressVars[keccak256("_owner")], "Sender is not owner");
        emit OwnershipProposed(self.addressVars[keccak256("_owner")], _pendingOwner);
        self.addressVars[keccak256("pending_owner")] = _pendingOwner;
    }

    /**
    * @dev Allows the new owner to claim control of the contract
    */
    function claimOwnership(TellorStorage.TellorStorageStruct storage self) public {
        require(msg.sender == self.addressVars[keccak256("pending_owner")], "Sender is not pending owner");
        emit OwnershipTransferred(self.addressVars[keccak256("_owner")], self.addressVars[keccak256("pending_owner")]);
        self.addressVars[keccak256("_owner")] = self.addressVars[keccak256("pending_owner")];
    }

    /**
    * @dev This function updates APIonQ and the requestQ when requestData or addTip are ran
    * @param _requestId being requested
    * @param _tip is the tip to add
    */
    function updateOnDeck(TellorStorage.TellorStorageStruct storage self, uint256 _requestId, uint256 _tip) public {
        TellorStorage.Request storage _request = self.requestDetails[_requestId];
        _request.apiUintVars[keccak256("totalTip")] = _request.apiUintVars[keccak256("totalTip")].add(_tip);
        //maybe use a request uintVar to keep track if its being mined?
        if(self.currentMiners[0].value == _requestId || self.currentMiners[1].value== _requestId ||self.currentMiners[2].value == _requestId||self.currentMiners[3].value== _requestId || self.currentMiners[4].value== _requestId ){
            self.uintVars[keccak256("currentTotalTips")] += _tip;
        }
        else {
            //if the request is not part of the requestQ[51] array
            //then add to the requestQ[51] only if the _payout/tip is greater than the minimum(tip) in the requestQ[51] array
            if (_request.apiUintVars[keccak256("requestQPosition")] == 0) {
                uint256 _min;
                uint256 _index;
                (_min, _index) = Utilities.getMin(self.requestQ);
                //we have to zero out the oldOne
                //if the _payout is greater than the current minimum payout in the requestQ[51] or if the minimum is zero
                //then add it to the requestQ array aand map its index information to the requestId and the apiUintvars
                if (_request.apiUintVars[keccak256("totalTip")] > _min || _min == 0) {
                    self.requestQ[_index] = _request.apiUintVars[keccak256("totalTip")];
                    self.requestDetails[self.requestIdByRequestQIndex[_index]].apiUintVars[keccak256("requestQPosition")] = 0;
                    self.requestIdByRequestQIndex[_index] = _requestId;
                    _request.apiUintVars[keccak256("requestQPosition")] = _index;
                }
                // else if the requestid is part of the requestQ[51] then update the tip for it
            } else{
                self.requestQ[_request.apiUintVars[keccak256("requestQPosition")]] += _tip;
            }
        }
    }


/**********************CHEAT Functions for Testing******************************/
/**********************CHEAT Functions for Testing******************************/
/**********************CHEAT Functions for Testing--No Nonce******************************/


    // /*This is a cheat for demo purposes, will delete upon actual launch*/
    // function theLazyCoon(TellorStorage.TellorStorageStruct storage self,address _address, uint _amount) public {
    //     self.uintVars[keccak256("total_supply")] += _amount;
    //     TellorTransfer.updateBalanceAtNow(self.balances[_address],_amount);
    // } 

    // /**
    // * @dev Proof of work is called by the miner when they submit the solution (proof of work and value)
    // * @param _nonce uint submitted by miner
    // * @param _requestId the apiId being mined
    // * @param _value of api query
    // ** OLD!!!!!!!!
    // */
    // function testSubmitMiningSolution(TellorStorage.TellorStorageStruct storage self, string memory _nonce, uint256 _requestId, uint256 _value)
    //     public
    // {
    //     require (self.uintVars[keccak256("timeTarget")] == 600, "Contract has upgraded, call new function");
    //     //require miner is staked
    //     require(self.stakerDetails[msg.sender].currentStatus == 1, "Miner status is not staker");
    //     //Check the miner is submitting the pow for the current request Id
    //     require(_requestId == self.uintVars[keccak256("currentRequestId")], "RequestId is wrong");
    //     //Saving the challenge information as unique by using the msg.sender
    //     // require(
    //     //     uint256(
    //     //         sha256(abi.encodePacked(ripemd160(abi.encodePacked(keccak256(abi.encodePacked(self.currentChallenge, msg.sender, _nonce))))))
    //     //     ) %
    //     //         self.uintVars[keccak256("difficulty")] ==
    //     //         0,
    //     //     "Incorrect nonce for current challenge"
    //     // );
    //     //Make sure the miner does not submit a value more than once
    //     require(self.minersByChallenge[self.currentChallenge][msg.sender] == false, "Miner already submitted the value");
    //     //Save the miner and value received
    //     self.currentMiners[self.uintVars[keccak256("slotProgress")]].value = _value;
    //     self.currentMiners[self.uintVars[keccak256("slotProgress")]].miner = msg.sender;
    //     //Add to the count how many values have been submitted, since only 5 are taken per request
    //     self.uintVars[keccak256("slotProgress")]++;
    //     //Update the miner status to true once they submit a value so they don't submit more than once
    //     self.minersByChallenge[self.currentChallenge][msg.sender] = true;
    //     //If 5 values have been received, adjust the difficulty otherwise sort the values until 5 are received
    //     if (self.uintVars[keccak256("slotProgress")] == 5) {
    //         newBlock(self, _nonce, _requestId);
    //     }
    // }

    // /**
    // * @dev Proof of work is called by the miner when they submit the solution (proof of work and value)
    // * @param _nonce uint submitted by miner
    // * @param _requestId is the array of the 5 PSR's being mined
    // * @param _value is an array of 5 values
    // */
    // function testSubmitMiningSolution(TellorStorage.TellorStorageStruct storage self, string memory _nonce,uint256[5] memory _requestId, uint256[5] memory _value)
    //     public
    // {
    //     require(self.stakerDetails[msg.sender].currentStatus == 1, "Miner status is not staker");
    //     //has to be a better way to do this...
    //     for(uint i=0;i<5;i++){
    //         require(_requestId[i] ==  self.currentMiners[i].value,"Request ID is wrong");
    //     }
    //     TellorStorage.Request storage _tblock = self.requestDetails[self.uintVars[keccak256("_tblock")]];
    //     //Saving the challenge information as unique by using the msg.sender
    //     // require(uint256(
    //     //         sha256(abi.encodePacked(ripemd160(abi.encodePacked(keccak256(abi.encodePacked(self.currentChallenge, msg.sender, _nonce))))))
    //     //     ) %
    //     //         self.uintVars[keccak256("difficulty")] == 0
    //     //         || (now - (now % 1 minutes)) - self.uintVars[keccak256("timeOfLastNewValue")] >= 15 minutes,
    //     //     "Incorrect nonce for current challenge"
    //     // );
    //     // require(now - self.uintVars[keccak256(abi.encodePacked(msg.sender))] > 1 hours);

    //     //Make sure the miner does not submit a value more than once
    //     require(self.minersByChallenge[self.currentChallenge][msg.sender] == false, "Miner already submitted the value");
    //     //require the miner did not receive awards in the last hour
    //     //
    //     self.uintVars[keccak256(abi.encodePacked(msg.sender))] = now;
    //     if(self.uintVars[keccak256("slotProgress")] == 0){
    //         self.uintVars[keccak256("runningTips")] = self.uintVars[keccak256("currentTotalTips")];
    //     }
    //     uint _extraTip = (self.uintVars[keccak256("currentTotalTips")]-self.uintVars[keccak256("runningTips")])/(5-self.uintVars[keccak256("slotProgress")]);
    //     TellorTransfer.doTransfer(self, address(this), msg.sender, self.uintVars[keccak256("currentReward")]  + self.uintVars[keccak256("runningTips")] / 2 / 5 + _extraTip);
    //     self.uintVars[keccak256("currentTotalTips")] -= _extraTip;

    //     //Save the miner and value received
    //     _tblock.minersByValue[1][self.uintVars[keccak256("slotProgress")]]= msg.sender;

    //     //this will fill the currentMiners array
    //     for (uint j = 0; j < 5; j++) {
    //         _tblock.valuesByTimestamp[j][self.uintVars[keccak256("slotProgress")]] = _value[j];

    //     }
    //     self.uintVars[keccak256("slotProgress")]++;
    //     //Update the miner status to true once they submit a value so they don't submit more than once
    //     self.minersByChallenge[self.currentChallenge][msg.sender] = true;
    //     emit NonceSubmitted(msg.sender, _nonce, _requestId, _value, self.currentChallenge);
    //     //If 5 values have been received, adjust the difficulty otherwise sort the values until 5 are received
    //     if (self.uintVars[keccak256("slotProgress")] == 5) {
    //         newBlock(self, _nonce, _requestId);
    //         self.uintVars[keccak256("slotProgress")] = 0;
    //     }
    // }



    

}


/**
 * @title Tellor Oracle System
 * @dev Oracle contract where miners can submit the proof of work along with the value.
 * The logic for this contract is in TellorLibrary.sol, TellorDispute.sol, TellorStake.sol,
 * and TellorTransfer.sol
 */
contract Tellor {
    using SafeMath for uint256;

    using TellorDispute for TellorStorage.TellorStorageStruct;
    using TellorLibrary for TellorStorage.TellorStorageStruct;
    using TellorStake for TellorStorage.TellorStorageStruct;
    using TellorTransfer for TellorStorage.TellorStorageStruct;

    TellorStorage.TellorStorageStruct tellor;

    /*Functions*/

    /**
    * @dev Helps initialize a dispute by assigning it a disputeId
    * when a miner returns a false on the validate array(in Tellor.ProofOfWork) it sends the
    * invalidated value information to POS voting
    * @param _requestId being disputed
    * @param _timestamp being disputed
    * @param _minerIndex the index of the miner that submitted the value being disputed. Since each official value
    * requires 5 miners to submit a value.
    */
    function beginDispute(uint256 _requestId, uint256 _timestamp, uint256 _minerIndex) external {
        tellor.beginDispute(_requestId, _timestamp, _minerIndex);
    }

    /**
    * @dev Allows token holders to vote
    * @param _disputeId is the dispute id
    * @param _supportsDispute is the vote (true=the dispute has basis false = vote against dispute)
    */
    function vote(uint256 _disputeId, bool _supportsDispute) external {
        tellor.vote(_disputeId, _supportsDispute);
    }

    /**
    * @dev tallies the votes.
    * @param _disputeId is the dispute id
    */
    function tallyVotes(uint256 _disputeId) external {
        tellor.tallyVotes(_disputeId);
    }

    /**
    * @dev Allows for a fork to be proposed
    * @param _propNewTellorAddress address for new proposed Tellor
    */
    function proposeFork(address _propNewTellorAddress) external {
        tellor.proposeFork(_propNewTellorAddress);
    }

    /**
    * @dev Add tip to Request value from oracle
    * @param _requestId being requested to be mined
    * @param _tip amount the requester is willing to pay to be get on queue. Miners
    * mine the onDeckQueryHash, or the api with the highest payout pool
    */
    function addTip(uint256 _requestId, uint256 _tip) external {
        tellor.addTip(_requestId, _tip);
    }


    /**
    * @dev This is called by the miner when they submit the PoW solution (proof of work and value)
    * @param _nonce uint submitted by miner
    * @param _requestId the apiId being mined
    * @param _value of api query
    * OLD!!!!!!!!!!!
    */
    function submitMiningSolution(string calldata _nonce, uint256 _requestId, uint256 _value) external {
        tellor.submitMiningSolution(_nonce, _requestId, _value);
    }

    /**
    * @dev This is called by the miner when they submit the PoW solution (proof of work and value)
    * @param _nonce uint submitted by miner
    * @param _requestId is the array of the 5 PSR's being mined
    * @param _value is an array of 5 values
    */
    function submitMiningSolution(string calldata _nonce,uint256[5] calldata _requestId, uint256[5] calldata _value) external {
        tellor.submitMiningSolution(_nonce,_requestId, _value);
    }


    /**
    * @dev Allows the current owner to propose transfer control of the contract to a
    * newOwner and the ownership is pending until the new owner calls the claimOwnership
    * function
    * @param _pendingOwner The address to transfer ownership to.
    */
    function proposeOwnership(address payable _pendingOwner) external {
        tellor.proposeOwnership(_pendingOwner);
    }

    /**
    * @dev Allows the new owner to claim control of the contract
    */
    function claimOwnership() external {
        tellor.claimOwnership();
    }

    /**
    * @dev This function allows miners to deposit their stake.
    */
    function depositStake() external {
        tellor.depositStake();
    }

    /**
    * @dev This function allows stakers to request to withdraw their stake (no longer stake)
    * once they lock for withdraw(stakes.currentStatus = 2) they are locked for 7 days before they
    * can withdraw the stake
    */
    function requestStakingWithdraw() external {
        tellor.requestStakingWithdraw();
    }

    /**
    * @dev This function allows users to withdraw their stake after a 7 day waiting period from request
    */
    function withdrawStake() external {
        tellor.withdrawStake();
    }

    /**
    * @dev This function approves a _spender an _amount of tokens to use
    * @param _spender address
    * @param _amount amount the spender is being approved for
    * @return true if spender appproved successfully
    */
    function approve(address _spender, uint256 _amount) external returns (bool) {
        return tellor.approve(_spender, _amount);
    }

    /**
    * @dev Allows for a transfer of tokens to _to
    * @param _to The address to send tokens to
    * @param _amount The amount of tokens to send
    * @return true if transfer is successful
    */
    function transfer(address _to, uint256 _amount) external returns (bool) {
        return tellor.transfer(_to, _amount);
    }

    /**
    * @dev Sends _amount tokens to _to from _from on the condition it
    * is approved by _from
    * @param _from The address holding the tokens being transferred
    * @param _to The address of the recipient
    * @param _amount The amount of tokens to be transferred
    * @return True if the transfer was successful
    */
    function transferFrom(address _from, address _to, uint256 _amount) external returns (bool) {
        return tellor.transferFrom(_from, _to, _amount);
    }

    /**
    * @dev Allows users to access the token's name
    */
    function name() external pure returns (string memory) {
        return "Tellor Tributes";
    }

    /**
    * @dev Allows users to access the token's symbol
    */
    function symbol() external pure returns (string memory) {
        return "TRB";
    }

    /**
    * @dev Allows users to access the number of decimals
    */
    function decimals() external pure returns (uint8) {
        return 18;
    }

    /**
    * @dev Getter for the current variables that include the 5 requests Id's
    * @return the challenge, 5 requestsId, difficulty and tip
    */
    function getNewCurrentVariables() external view returns(bytes32 _challenge,uint[5] memory _requestIds,uint256 _difficutly, uint256 _tip){
        return tellor.getNewCurrentVariables();
    }

    /**
    * @dev Getter for the top tipped 5 requests Id's
    * @return the 5 requestsId
    */
    function getTopRequestIDs() external view returns(uint256[5] memory _requestIds){
        return tellor.getTopRequestIDs();
    }

    /**
    * @dev Getter for the 5 requests Id's next in line to get mined
    * @return the 5 requestsId
    */
    function getNewVariablesOnDeck() external view returns (uint256[5] memory idsOnDeck, uint256[5] memory tipsOnDeck) {
        return tellor.getNewVariablesOnDeck();
    }

    /**
    * @dev Updates the Tellor address after a proposed fork has 
    * passed the vote and day has gone by without a dispute
    * @param _disputeId the disputeId for the proposed fork
    */
     function updateTellor(uint _disputeId) external{
        return tellor.updateTellor(_disputeId);
    }

    /**
    * @dev Allows disputer to unlock the dispute fee
    * @param _disputeId to unlock fee from
    */
     function unlockDisputeFee (uint _disputeId) external{
        return tellor.unlockDisputeFee(_disputeId);
    }

    /*******************TEST Functions NOT INCLUDED ON PRODUCTION/MAINNET/RINKEBY******/
        /*This is a cheat for demo purposes, will delete upon actual launch*/
    // function theLazyCoon(address _address, uint _amount) external {
    //     tellor.theLazyCoon(_address,_amount);
    // }

    // function testSubmitMiningSolution(string calldata _nonce, uint256 _requestId, uint256 _value) external {
    //     tellor.testSubmitMiningSolution(_nonce, _requestId, _value);
    // }

    // function testSubmitMiningSolution(string calldata _nonce,uint256[5] calldata _requestId, uint256[5] calldata _value) external {
    //     tellor.testSubmitMiningSolution(_nonce,_requestId, _value);
    // }
    /***************END TEST Functions NOT INCLUDED ON PRODUCTION/MAINNET/RINKEBY******/
 }

[{"constant":false,"inputs":[{"internalType":"uint256","name":"_requestId","type":"uint256"},{"internalType":"uint256","name":"_tip","type":"uint256"}],"name":"addTip","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"_requestId","type":"uint256"},{"internalType":"uint256","name":"_timestamp","type":"uint256"},{"internalType":"uint256","name":"_minerIndex","type":"uint256"}],"name":"beginDispute","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"claimOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[],"name":"depositStake","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"getNewCurrentVariables","outputs":[{"internalType":"bytes32","name":"_challenge","type":"bytes32"},{"internalType":"uint256[5]","name":"_requestIds","type":"uint256[5]"},{"internalType":"uint256","name":"_difficutly","type":"uint256"},{"internalType":"uint256","name":"_tip","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getNewVariablesOnDeck","outputs":[{"internalType":"uint256[5]","name":"idsOnDeck","type":"uint256[5]"},{"internalType":"uint256[5]","name":"tipsOnDeck","type":"uint256[5]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getTopRequestIDs","outputs":[{"internalType":"uint256[5]","name":"_requestIds","type":"uint256[5]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_propNewTellorAddress","type":"address"}],"name":"proposeFork","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address payable","name":"_pendingOwner","type":"address"}],"name":"proposeOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"requestStakingWithdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"string","name":"_nonce","type":"string"},{"internalType":"uint256[5]","name":"_requestId","type":"uint256[5]"},{"internalType":"uint256[5]","name":"_value","type":"uint256[5]"}],"name":"submitMiningSolution","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"string","name":"_nonce","type":"string"},{"internalType":"uint256","name":"_requestId","type":"uint256"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"submitMiningSolution","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"_disputeId","type":"uint256"}],"name":"tallyVotes","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"_disputeId","type":"uint256"}],"name":"unlockDisputeFee","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"_disputeId","type":"uint256"}],"name":"updateTellor","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"_disputeId","type":"uint256"},{"internalType":"bool","name":"_supportsDispute","type":"bool"}],"name":"vote","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"withdrawStake","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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TellorTransfer : 0x82b8d6b5dc1a6955aefc86d470fc76021ef89d9cUnverified
TellorDispute : 0xb8d292c3c553f0e4f99ba73c84565e51b65b4d0fUnverified
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TellorLibrary : 0x3b3552cd4477f9b5494c67cdc093350c072315b2Unverified

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