Latest 25 txns From a total of 13638 Transactions
(+12 PendingTxns)

TxHash Age From To Value [TxFee]
0x0900c90565f5a1608583b5ad4aed5adc89537c45dc8d7cd8054d659af90a2a0d(pending)0xbdaecacd3f71535776ef2e3320f42b1b22a3259c  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0x999fe60e770ad3436ead69243e47d3c6de8bbcefcbfc50514d71fcbe6f7c8fc1(pending)0x6c7e847ec4e2e6d2c7aa54aad88b6529e2c87cfd  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0xa41b3e6bcadeebaf5d32a27d78bfc15422fd083cd190d5e7f3e76ab250bdea38(pending)0xbbbca4b29679ca4eec35ca2cf91c37bf8ba83f77  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0x1ea8a721649f0a8ac5d5fedba824179f32d36a50190118346b30b846c997c314(pending)0x63a10803d29554e2cf1a6f82ff3df087b1b6031b  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0xd45e7322b201e5e44cfd950ee773b6757a0026619db008b4ace3cafd696960ad(pending)0x35f7e563f6ba9cba9c22191bb32d34c190e77efc  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0x2d0737807ab56b10ddc68944c04557b10ec92530eec821058d96b295804c98f5(pending)0x35f7e563f6ba9cba9c22191bb32d34c190e77efc  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0x0e0c68f8dfe0f42a0cc9a33f1bdb15ae1041e7ab1f9d3639bd7aa20dae420a7d(pending)0x0a0bf0003c5294548ecc2127dde9a6afea634b21  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0x8a5639b2a99923cbc0f755d4bc0299376ef0439000e94124c79280fac5ff39d6(pending)0x99f736bd5128c59b45148c7f330a9ab40908b974  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0x0f2f3b8892b268d02fe43063531f97d65544bed91a146008bc6278ac74f67d86(pending)0x8d4d69963fdbbaba981c861e9b4c01689655b304  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0xa319e5e866ce6e80985520b6166c3382cd5fd4af709bdeab06f48e49c7fb24a1(pending)0xa8a48c54bdebf36d222d693ca0cac4bd1b806769  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0x012ce51c684f07229cd5ebe46e4576250dedae68d2ca569c4483f6206618dde1(pending)0x4e3d07e6f19c93e4e62760d48ae58cdbf553adc3  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0xc9d49d845b7ce232af84fce65343adbd8d447434d24daf296538bed3877d83a5(pending)0x38e28b964b627dc5543fcc8e64481550ea5ff230  IN  0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether(Pending)
0xb7f87fcccbd287bdd9beae0a3ac4e9fe752fcc7cd87dd3081d01e3469bbac18a11 hrs 30 mins ago0xde6905a562e881890230b2022c575fecdac0f36d  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether0.0003867
0x01004d08d94b04cf2375341251eaaf1b77cfcaada818d24b862d818004d9565b12 hrs 34 mins ago0xde6905a562e881890230b2022c575fecdac0f36d  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether0.000265566
0x5bde6326c5d83701597b797236844c1a93b5e124aede8c0e20c266193623e00b3 days 4 hrs ago0x1c37b2f4884cdf773ae5e2fb003eb2fbc2f59761  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether0.000275562
0x057cac1d259e14f48aa2c0035b7ac2df5caba6fcfea536bd86a671e2cd2d87c43 days 19 hrs ago0x957f38c3bb43e3acfcb920a90e121823ef567a20  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether0.000065149
0xd945e9f8682c3fae5e6a16c9d69ee39a83d891d04ec2aba9efcaba9d1b9eddf76 days 15 hrs ago0xb8fdc8747b4011ba83d128b5df86fe9d8cb05c17  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether0.000091854
0xf41cf841f983f77e4c1d793ea72938a68b32c5ee988bebc2c67ca33f9115d7a88 days 2 hrs ago0x387653556e05c9800c9bc7f80a49688efdec27f6  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether0.000260596
0x4b72698d377d620339104c3db479ca044c3fdc1ef0cb47cb9001886161301d459 days 12 hrs ago0xcfc8f66fa2611e56edd8ee35a43a1111ad4afbb6  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether0.000137781
0xf03f3fc3e610ed641ed7c8916208d3fe1e498ec9ab092ffa0868862cf9b583d89 days 12 hrs ago0xbbbca4b29679ca4eec35ca2cf91c37bf8ba83f77  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether0.000037938
0xba00e41f7954f793d79a3dd4070a78e38def80bc2d180f29bb2f55ee62b2ff369 days 21 hrs ago0x387653556e05c9800c9bc7f80a49688efdec27f6  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether0.000260596
0xb3f9239d9e8563415e4cb93fafa3427b1e02f1f3c2b5a66b12d422e99b29252912 days 3 hrs ago0x219df9555ba9abe063f79b79eabca166e50848a0  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000.01 Ether0.0002767783
0x0670e5905e5e259006fb07ef2ff6e3a554f9138e9f6a6fc46e21c592273e030e13 days 6 hrs ago0x3c3bb89ea30c5e4ef9c07d35773302cb4acc06e4  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000 Ether0.000390894
0x6c69f86d290c2088cd91e14fcef736ea9de31e941e7810d5f3755d099ca0abc113 days 12 hrs ago0x860e48aa25bfe8c4189354e56e59c0522ba73b75  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000.01 Ether0.000355556
0xc8ea7ad3833cab1cead60c3f5b8582a2521efc683745ecfbfb89f9829f9e5b7d14 days 9 hrs ago0x219df9555ba9abe063f79b79eabca166e50848a0  IN   0x2fa0ac498d01632f959d3c18e38f4390b005e2000.000995 Ether0.000266667
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 Internal Transactions as a result of Contract Execution
 Latest 25 Internal Txns, Click Here To View More View All
ParentTxHash Block Age From To Value
0xb7f87fcccbd287bdd9beae0a3ac4e9fe752fcc7cd87dd3081d01e3469bbac18a639347811 hrs 30 mins ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000xde6905a562e881890230b2022c575fecdac0f36d0.060265016287313129 Ether
0x5bde6326c5d83701597b797236844c1a93b5e124aede8c0e20c266193623e00b63771443 days 4 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x1c37b2f4884cdf773ae5e2fb003eb2fbc2f597610.067157150522444703 Ether
0xd945e9f8682c3fae5e6a16c9d69ee39a83d891d04ec2aba9efcaba9d1b9eddf763561936 days 15 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000xb8fdc8747b4011ba83d128b5df86fe9d8cb05c170.340098153828262779 Ether
0x4b72698d377d620339104c3db479ca044c3fdc1ef0cb47cb9001886161301d4563387469 days 12 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000xcfc8f66fa2611e56edd8ee35a43a1111ad4afbb60.062193810414069411 Ether
0x5c2a0002555b0474ae57b75c3bd9119dab9b2d1aeafd86dff825ed5eb90d6435628097219 days 3 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x63c646a7c355b5318eb1ae9fb93d91a5c660fbf40.007488317967962801 Ether
0xa5cb55ebeeff75b98ab2b3851d1e4ea0c5a95842e9ef2234d79c34d9d530edb2627395020 days 7 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x063dcb9b675ad7a8aa291eb96b620d947cb51ea10.147272485985683164 Ether
0x67ef4d634ba0e3a3e20b6a94e3c40f525e4da36fa478b87731e18b7f8e6f0a34627374020 days 8 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x3ccec31ad02c1795aa5ef1573ecc4b9b9ed067310.474669544724789715 Ether
0x111309e2e228dfd6c1090114bb5c7b703c7393d48eebbe93cf47bbf64a602062627371920 days 8 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x063dcb9b675ad7a8aa291eb96b620d947cb51ea10.014970635024206821 Ether
0x770c223dd6104a85ffe95ecda0737fafb3148c517da620328e548b373e4aab67626681321 days 12 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000xd706820131aec9d8f52c90f2eee741bb8f24ed610.054697050297630659 Ether
0x4a177dc13bd9a529bb6375df1ef090360bc6474a534088ae7f3e97f14dc5ca66626658021 days 13 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x545cf081cebd1209cb58491d6bb6b097f8341c980.319861911738980171 Ether
0x8ea35cc18c6dd1d2515fb0ca5fc5b9ba3aaf59ce45fda8e4af6fa39a894a223d626359322 days 1 hr ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x2aa21b6cd527d7ad5a7c1a1a29a36320a236c0b60.155060685453125016 Ether
0xd1a80e4b3722823f1be94574100b3def7ad1ae67bf5183a0c8192aac8d4a1770623608326 days 16 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x98fdf257f713ea8073909e1f45d26fe09955a4cc0.009853326536186141 Ether
0xba7d0a589834802cf8e90500e8902951fcf402a250fd7d19a6fe2306d50cf6b9623149727 days 11 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x3366c1a803160630dd2a94bafed0d3bf59403be40.124596354883484007 Ether
0x7fe91d923055fd90b0dd42b6dc15097aff7a9ead4ee210601c0b00b4cefbd5bb623148927 days 11 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x3366c1a803160630dd2a94bafed0d3bf59403be40.122421972090033028 Ether
0x3cb454c5069e520970e0fa40cb6a872450f3234bbba6dd36ec5c68a84c1f7f50622302428 days 21 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x029b9ba6b5fadb7e58961ddfbb818b7e1d9d8c1f0.010042328954711613 Ether
0x7f3f2d813c24130df1ed8072c751a6a4b382b4dcd1950d1752c44c599db837cd622161829 days 3 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x3a35f7142d4779f282a4ebbc5f91fb68a66ef3890.845888846853535926 Ether
0x153398f4208358f1b3189640f8062b0e2f49d7c3b1a8ec7b3bb6f990c7ca69e9622031629 days 8 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x2785c3a9eff5b78748be219bb0e07879ecfd2a6e0.528407547299259577 Ether
0x7e904a42c4f3289a282ca7ebe10826266bd8cfa3c9a7cd1943825dc00c10a202620827531 days 9 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x8d4d69963fdbbaba981c861e9b4c01689655b3040.007956607428265331 Ether
0xa4bdd099eaee3ffd43c7dfd61923508e208051ecac041d27f96a31675bffa1da620292632 days 6 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x555d28fe69eb8dbcba9883a01922efcb75a3abc50.194896062497554884 Ether
0xab8ca3d5761af41884902b562db7ba4f01725b00e27ff24f1797862773b8838f619481733 days 16 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x09cd77d3c13208830ed93fb042d15324f156723d0.024843155779305253 Ether
0x01ac84868b15b33680b5586f74d03a701e096dda270b519f32e7fd09bf1a0071618273235 days 16 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x74e5a4cba4e44e2200844670297a0d5d0abe281f0.087788122533507722 Ether
0x9fe06319cd1cef42a3ae039a00cfc1ab0853fff93d9587bf13122464bb5cc1fc617191637 days 12 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000xdc770329b6ad864b966ef0e376b0700ba44d85862.553017556179200652 Ether
0x4d4e60da0ae046651800a01b91c39fbf18dca62b0c49ff4787e39351cf53e055616731638 days 7 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x61e3f17f8bf2c0ed30fd9367e166b4adc786b62a0.036611575232475487 Ether
0x7f832ede9961ca8ba9dcf57f82df30ff61216224925e3ebbaf6319ab6d3e05b9616483538 days 17 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000x5a5e02ce8d29f38bf2d65b88c5f86bcf98c043870.016839191584912813 Ether
0x219475e54f2780bd9addde2d74c63d7c1c51f9415d2113167c15d2e7b16c5919615320740 days 16 hrs ago0x2fa0ac498d01632f959d3c18e38f4390b005e2000xce88cfe3a3d0cd18866180ed101f0eb198a7144f0.876293909087936903 Ether
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Warning: The Compiled Contract might be susceptible to ExpExponentCleanup (medium/high-severity), EventStructWrongData (very low-severity), NestedArrayFunctionCallDecoder (medium-severity) SolidityCompiler Bugs.

Contract Source Code Verified (Similar Match)
Note: Displaying Similar Match Verified Source Code At Contract 0xc908a34165d2720d12ffcfb6b99b47161b1c9946(Excluding Constructor Arguments if_any)
Contract Name: EthPyramid
Compiler Text: v0.4.20-nightly.2018.1.29+commit.a668b9de
Optimization Enabled: Yes
Runs (Optimiser):  200



  Contract Source Code   Find Similiar Contracts

pragma solidity ^0.4.18;

/*
          ,/`.
        ,'/ __`.
      ,'_/_  _ _`.
    ,'__/_ ___ _  `.
  ,'_  /___ __ _ __ `.
 '-.._/___...-"-.-..__`.
  B

 EthPyramid. A no-bullshit, transparent, self-sustaining pyramid scheme.
 
 Inspired by https://test.jochen-hoenicke.de/eth/ponzitoken/

 Developers:
	Arc
	Divine
	Norsefire
	ToCsIcK
	
 Front-End:
	Cardioth
	tenmei
	Trendium
	
 Moral Support:
	DeadCow.Rat
	Dots
	FatKreamy
	Kaseylol
	QuantumDeath666
	Quentin
 
 Shit-Tier:
	HentaiChrist
 
*/

contract EthPyramid {

	// scaleFactor is used to convert Ether into tokens and vice-versa: they're of different
	// orders of magnitude, hence the need to bridge between the two.
	uint256 constant scaleFactor = 0x10000000000000000;  // 2^64

	// CRR = 50%
	// CRR is Cash Reserve Ratio (in this case Crypto Reserve Ratio).
	// For more on this: check out https://en.wikipedia.org/wiki/Reserve_requirement
	int constant crr_n = 1; // CRR numerator
	int constant crr_d = 2; // CRR denominator

	// The price coefficient. Chosen such that at 1 token total supply
	// the amount in reserve is 0.5 ether and token price is 1 Ether.
	int constant price_coeff = -0x296ABF784A358468C;

	// Typical values that we have to declare.
	string constant public name = "EthPyramid";
	string constant public symbol = "EPY";
	uint8 constant public decimals = 18;

	// Array between each address and their number of tokens.
	mapping(address => uint256) public tokenBalance;
		
	// Array between each address and how much Ether has been paid out to it.
	// Note that this is scaled by the scaleFactor variable.
	mapping(address => int256) public payouts;

	// Variable tracking how many tokens are in existence overall.
	uint256 public totalSupply;

	// Aggregate sum of all payouts.
	// Note that this is scaled by the scaleFactor variable.
	int256 totalPayouts;

	// Variable tracking how much Ether each token is currently worth.
	// Note that this is scaled by the scaleFactor variable.
	uint256 earningsPerToken;
	
	// Current contract balance in Ether
	uint256 public contractBalance;

	function EthPyramid() public {}

	// The following functions are used by the front-end for display purposes.

	// Returns the number of tokens currently held by _owner.
	function balanceOf(address _owner) public constant returns (uint256 balance) {
		return tokenBalance[_owner];
	}

	// Withdraws all dividends held by the caller sending the transaction, updates
	// the requisite global variables, and transfers Ether back to the caller.
	function withdraw() public {
		// Retrieve the dividends associated with the address the request came from.
		var balance = dividends(msg.sender);
		
		// Update the payouts array, incrementing the request address by `balance`.
		payouts[msg.sender] += (int256) (balance * scaleFactor);
		
		// Increase the total amount that's been paid out to maintain invariance.
		totalPayouts += (int256) (balance * scaleFactor);
		
		// Send the dividends to the address that requested the withdraw.
		contractBalance = sub(contractBalance, balance);
		msg.sender.transfer(balance);
	}

	// Converts the Ether accrued as dividends back into EPY tokens without having to
	// withdraw it first. Saves on gas and potential price spike loss.
	function reinvestDividends() public {
		// Retrieve the dividends associated with the address the request came from.
		var balance = dividends(msg.sender);
		
		// Update the payouts array, incrementing the request address by `balance`.
		// Since this is essentially a shortcut to withdrawing and reinvesting, this step still holds.
		payouts[msg.sender] += (int256) (balance * scaleFactor);
		
		// Increase the total amount that's been paid out to maintain invariance.
		totalPayouts += (int256) (balance * scaleFactor);
		
		// Assign balance to a new variable.
		uint value_ = (uint) (balance);
		
		// If your dividends are worth less than 1 szabo, or more than a million Ether
		// (in which case, why are you even here), abort.
		if (value_ < 0.000001 ether || value_ > 1000000 ether)
			revert();
			
		// msg.sender is the address of the caller.
		var sender = msg.sender;
		
		// A temporary reserve variable used for calculating the reward the holder gets for buying tokens.
		// (Yes, the buyer receives a part of the distribution as well!)
		var res = reserve() - balance;

		// 10% of the total Ether sent is used to pay existing holders.
		var fee = div(value_, 10);
		
		// The amount of Ether used to purchase new tokens for the caller.
		var numEther = value_ - fee;
		
		// The number of tokens which can be purchased for numEther.
		var numTokens = calculateDividendTokens(numEther, balance);
		
		// The buyer fee, scaled by the scaleFactor variable.
		var buyerFee = fee * scaleFactor;
		
		// Check that we have tokens in existence (this should always be true), or
		// else you're gonna have a bad time.
		if (totalSupply > 0) {
			// Compute the bonus co-efficient for all existing holders and the buyer.
			// The buyer receives part of the distribution for each token bought in the
			// same way they would have if they bought each token individually.
			var bonusCoEff =
			    (scaleFactor - (res + numEther) * numTokens * scaleFactor / (totalSupply + numTokens) / numEther)
			    * (uint)(crr_d) / (uint)(crr_d-crr_n);
				
			// The total reward to be distributed amongst the masses is the fee (in Ether)
			// multiplied by the bonus co-efficient.
			var holderReward = fee * bonusCoEff;
			
			buyerFee -= holderReward;

			// Fee is distributed to all existing token holders before the new tokens are purchased.
			// rewardPerShare is the amount gained per token thanks to this buy-in.
			var rewardPerShare = holderReward / totalSupply;
			
			// The Ether value per token is increased proportionally.
			earningsPerToken += rewardPerShare;
		}
		
		// Add the numTokens which were just created to the total supply. We're a crypto central bank!
		totalSupply = add(totalSupply, numTokens);
		
		// Assign the tokens to the balance of the buyer.
		tokenBalance[sender] = add(tokenBalance[sender], numTokens);
		
		// Update the payout array so that the buyer cannot claim dividends on previous purchases.
		// Also include the fee paid for entering the scheme.
		// First we compute how much was just paid out to the buyer...
		var payoutDiff  = (int256) ((earningsPerToken * numTokens) - buyerFee);
		
		// Then we update the payouts array for the buyer with this amount...
		payouts[sender] += payoutDiff;
		
		// And then we finally add it to the variable tracking the total amount spent to maintain invariance.
		totalPayouts    += payoutDiff;
		
	}

	// Sells your tokens for Ether. This Ether is assigned to the callers entry
	// in the tokenBalance array, and therefore is shown as a dividend. A second
	// call to withdraw() must be made to invoke the transfer of Ether back to your address.
	function sellMyTokens() public {
		var balance = balanceOf(msg.sender);
		sell(balance);
	}

	// The slam-the-button escape hatch. Sells the callers tokens for Ether, then immediately
	// invokes the withdraw() function, sending the resulting Ether to the callers address.
    function getMeOutOfHere() public {
		sellMyTokens();
        withdraw();
	}

	// Gatekeeper function to check if the amount of Ether being sent isn't either
	// too small or too large. If it passes, goes direct to buy().
	function fund() payable public {
		// Don't allow for funding if the amount of Ether sent is less than 1 szabo.
		if (msg.value > 0.000001 ether) {
		    contractBalance = add(contractBalance, msg.value);
			buy();
		} else {
			revert();
		}
    }

	// Function that returns the (dynamic) price of buying a finney worth of tokens.
	function buyPrice() public constant returns (uint) {
		return getTokensForEther(1 finney);
	}

	// Function that returns the (dynamic) price of selling a single token.
	function sellPrice() public constant returns (uint) {
        var eth = getEtherForTokens(1 finney);
        var fee = div(eth, 10);
        return eth - fee;
    }

	// Calculate the current dividends associated with the caller address. This is the net result
	// of multiplying the number of tokens held by their current value in Ether and subtracting the
	// Ether that has already been paid out.
	function dividends(address _owner) public constant returns (uint256 amount) {
		return (uint256) ((int256)(earningsPerToken * tokenBalance[_owner]) - payouts[_owner]) / scaleFactor;
	}

	// Version of withdraw that extracts the dividends and sends the Ether to the caller.
	// This is only used in the case when there is no transaction data, and that should be
	// quite rare unless interacting directly with the smart contract.
	function withdrawOld(address to) public {
		// Retrieve the dividends associated with the address the request came from.
		var balance = dividends(msg.sender);
		
		// Update the payouts array, incrementing the request address by `balance`.
		payouts[msg.sender] += (int256) (balance * scaleFactor);
		
		// Increase the total amount that's been paid out to maintain invariance.
		totalPayouts += (int256) (balance * scaleFactor);
		
		// Send the dividends to the address that requested the withdraw.
		contractBalance = sub(contractBalance, balance);
		to.transfer(balance);		
	}

	// Internal balance function, used to calculate the dynamic reserve value.
	function balance() internal constant returns (uint256 amount) {
		// msg.value is the amount of Ether sent by the transaction.
		return contractBalance - msg.value;
	}

	function buy() internal {
		// Any transaction of less than 1 szabo is likely to be worth less than the gas used to send it.
		if (msg.value < 0.000001 ether || msg.value > 1000000 ether)
			revert();
						
		// msg.sender is the address of the caller.
		var sender = msg.sender;
		
		// 10% of the total Ether sent is used to pay existing holders.
		var fee = div(msg.value, 10);
		
		// The amount of Ether used to purchase new tokens for the caller.
		var numEther = msg.value - fee;
		
		// The number of tokens which can be purchased for numEther.
		var numTokens = getTokensForEther(numEther);
		
		// The buyer fee, scaled by the scaleFactor variable.
		var buyerFee = fee * scaleFactor;
		
		// Check that we have tokens in existence (this should always be true), or
		// else you're gonna have a bad time.
		if (totalSupply > 0) {
			// Compute the bonus co-efficient for all existing holders and the buyer.
			// The buyer receives part of the distribution for each token bought in the
			// same way they would have if they bought each token individually.
			var bonusCoEff =
			    (scaleFactor - (reserve() + numEther) * numTokens * scaleFactor / (totalSupply + numTokens) / numEther)
			    * (uint)(crr_d) / (uint)(crr_d-crr_n);
				
			// The total reward to be distributed amongst the masses is the fee (in Ether)
			// multiplied by the bonus co-efficient.
			var holderReward = fee * bonusCoEff;
			
			buyerFee -= holderReward;

			// Fee is distributed to all existing token holders before the new tokens are purchased.
			// rewardPerShare is the amount gained per token thanks to this buy-in.
			var rewardPerShare = holderReward / totalSupply;
			
			// The Ether value per token is increased proportionally.
			earningsPerToken += rewardPerShare;
			
		}

		// Add the numTokens which were just created to the total supply. We're a crypto central bank!
		totalSupply = add(totalSupply, numTokens);

		// Assign the tokens to the balance of the buyer.
		tokenBalance[sender] = add(tokenBalance[sender], numTokens);

		// Update the payout array so that the buyer cannot claim dividends on previous purchases.
		// Also include the fee paid for entering the scheme.
		// First we compute how much was just paid out to the buyer...
		var payoutDiff = (int256) ((earningsPerToken * numTokens) - buyerFee);
		
		// Then we update the payouts array for the buyer with this amount...
		payouts[sender] += payoutDiff;
		
		// And then we finally add it to the variable tracking the total amount spent to maintain invariance.
		totalPayouts    += payoutDiff;
		
	}

	// Sell function that takes tokens and converts them into Ether. Also comes with a 10% fee
	// to discouraging dumping, and means that if someone near the top sells, the fee distributed
	// will be *significant*.
	function sell(uint256 amount) internal {
	    // Calculate the amount of Ether that the holders tokens sell for at the current sell price.
		var numEthersBeforeFee = getEtherForTokens(amount);
		
		// 10% of the resulting Ether is used to pay remaining holders.
        var fee = div(numEthersBeforeFee, 10);
		
		// Net Ether for the seller after the fee has been subtracted.
        var numEthers = numEthersBeforeFee - fee;
		
		// *Remove* the numTokens which were just sold from the total supply. We're /definitely/ a crypto central bank.
		totalSupply = sub(totalSupply, amount);
		
        // Remove the tokens from the balance of the buyer.
		tokenBalance[msg.sender] = sub(tokenBalance[msg.sender], amount);

        // Update the payout array so that the seller cannot claim future dividends unless they buy back in.
		// First we compute how much was just paid out to the seller...
		var payoutDiff = (int256) (earningsPerToken * amount + (numEthers * scaleFactor));
		
        // We reduce the amount paid out to the seller (this effectively resets their payouts value to zero,
		// since they're selling all of their tokens). This makes sure the seller isn't disadvantaged if
		// they decide to buy back in.
		payouts[msg.sender] -= payoutDiff;		
		
		// Decrease the total amount that's been paid out to maintain invariance.
        totalPayouts -= payoutDiff;
		
		// Check that we have tokens in existence (this is a bit of an irrelevant check since we're
		// selling tokens, but it guards against division by zero).
		if (totalSupply > 0) {
			// Scale the Ether taken as the selling fee by the scaleFactor variable.
			var etherFee = fee * scaleFactor;
			
			// Fee is distributed to all remaining token holders.
			// rewardPerShare is the amount gained per token thanks to this sell.
			var rewardPerShare = etherFee / totalSupply;
			
			// The Ether value per token is increased proportionally.
			earningsPerToken = add(earningsPerToken, rewardPerShare);
		}
	}
	
	// Dynamic value of Ether in reserve, according to the CRR requirement.
	function reserve() internal constant returns (uint256 amount) {
		return sub(balance(),
			 ((uint256) ((int256) (earningsPerToken * totalSupply) - totalPayouts) / scaleFactor));
	}

	// Calculates the number of tokens that can be bought for a given amount of Ether, according to the
	// dynamic reserve and totalSupply values (derived from the buy and sell prices).
	function getTokensForEther(uint256 ethervalue) public constant returns (uint256 tokens) {
		return sub(fixedExp(fixedLog(reserve() + ethervalue)*crr_n/crr_d + price_coeff), totalSupply);
	}

	// Semantically similar to getTokensForEther, but subtracts the callers balance from the amount of Ether returned for conversion.
	function calculateDividendTokens(uint256 ethervalue, uint256 subvalue) public constant returns (uint256 tokens) {
		return sub(fixedExp(fixedLog(reserve() - subvalue + ethervalue)*crr_n/crr_d + price_coeff), totalSupply);
	}

	// Converts a number tokens into an Ether value.
	function getEtherForTokens(uint256 tokens) public constant returns (uint256 ethervalue) {
		// How much reserve Ether do we have left in the contract?
		var reserveAmount = reserve();

		// If you're the Highlander (or bagholder), you get The Prize. Everything left in the vault.
		if (tokens == totalSupply)
			return reserveAmount;

		// If there would be excess Ether left after the transaction this is called within, return the Ether
		// corresponding to the equation in Dr Jochen Hoenicke's original Ponzi paper, which can be found
		// at https://test.jochen-hoenicke.de/eth/ponzitoken/ in the third equation, with the CRR numerator 
		// and denominator altered to 1 and 2 respectively.
		return sub(reserveAmount, fixedExp((fixedLog(totalSupply - tokens) - price_coeff) * crr_d/crr_n));
	}

	// You don't care about these, but if you really do they're hex values for 
	// co-efficients used to simulate approximations of the log and exp functions.
	int256  constant one        = 0x10000000000000000;
	uint256 constant sqrt2      = 0x16a09e667f3bcc908;
	uint256 constant sqrtdot5   = 0x0b504f333f9de6484;
	int256  constant ln2        = 0x0b17217f7d1cf79ac;
	int256  constant ln2_64dot5 = 0x2cb53f09f05cc627c8;
	int256  constant c1         = 0x1ffffffffff9dac9b;
	int256  constant c3         = 0x0aaaaaaac16877908;
	int256  constant c5         = 0x0666664e5e9fa0c99;
	int256  constant c7         = 0x049254026a7630acf;
	int256  constant c9         = 0x038bd75ed37753d68;
	int256  constant c11        = 0x03284a0c14610924f;

	// The polynomial R = c1*x + c3*x^3 + ... + c11 * x^11
	// approximates the function log(1+x)-log(1-x)
	// Hence R(s) = log((1+s)/(1-s)) = log(a)
	function fixedLog(uint256 a) internal pure returns (int256 log) {
		int32 scale = 0;
		while (a > sqrt2) {
			a /= 2;
			scale++;
		}
		while (a <= sqrtdot5) {
			a *= 2;
			scale--;
		}
		int256 s = (((int256)(a) - one) * one) / ((int256)(a) + one);
		var z = (s*s) / one;
		return scale * ln2 +
			(s*(c1 + (z*(c3 + (z*(c5 + (z*(c7 + (z*(c9 + (z*c11/one))
				/one))/one))/one))/one))/one);
	}

	int256 constant c2 =  0x02aaaaaaaaa015db0;
	int256 constant c4 = -0x000b60b60808399d1;
	int256 constant c6 =  0x0000455956bccdd06;
	int256 constant c8 = -0x000001b893ad04b3a;
	
	// The polynomial R = 2 + c2*x^2 + c4*x^4 + ...
	// approximates the function x*(exp(x)+1)/(exp(x)-1)
	// Hence exp(x) = (R(x)+x)/(R(x)-x)
	function fixedExp(int256 a) internal pure returns (uint256 exp) {
		int256 scale = (a + (ln2_64dot5)) / ln2 - 64;
		a -= scale*ln2;
		int256 z = (a*a) / one;
		int256 R = ((int256)(2) * one) +
			(z*(c2 + (z*(c4 + (z*(c6 + (z*c8/one))/one))/one))/one);
		exp = (uint256) (((R + a) * one) / (R - a));
		if (scale >= 0)
			exp <<= scale;
		else
			exp >>= -scale;
		return exp;
	}
	
	// The below are safemath implementations of the four arithmetic operators
	// designed to explicitly prevent over- and under-flows of integer values.

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

	function div(uint256 a, uint256 b) internal pure returns (uint256) {
		// assert(b > 0); // Solidity automatically throws when dividing by 0
		uint256 c = a / b;
		// assert(a == b * c + a % b); // There is no case in which this doesn't hold
		return c;
	}

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

	function add(uint256 a, uint256 b) internal pure returns (uint256) {
		uint256 c = a + b;
		assert(c >= a);
		return c;
	}

	// This allows you to buy tokens by sending Ether directly to the smart contract
	// without including any transaction data (useful for, say, mobile wallet apps).
	function () payable public {
		// msg.value is the amount of Ether sent by the transaction.
		if (msg.value > 0) {
			fund();
		} else {
			withdrawOld(msg.sender);
		}
	}
}

    Contract ABI  
[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"to","type":"address"}],"name":"withdrawOld","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"sellPrice","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"ethervalue","type":"uint256"}],"name":"getTokensForEther","outputs":[{"name":"tokens","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"payouts","outputs":[{"name":"","type":"int256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"dividends","outputs":[{"name":"amount","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"buyPrice","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"contractBalance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"reinvestDividends","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"getMeOutOfHere","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"fund","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[{"name":"tokens","type":"uint256"}],"name":"getEtherForTokens","outputs":[{"name":"ethervalue","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"ethervalue","type":"uint256"},{"name":"subvalue","type":"uint256"}],"name":"calculateDividendTokens","outputs":[{"name":"tokens","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"sellMyTokens","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"tokenBalance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"inputs":[],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"}]

  Contract Creation Code Switch To Opcodes View
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   Swarm Source:
bzzr://6c7d107dcbe6f00e6ccb3d36b76f1e1c60de2a3c015200fad50d432f2f7f92f3

 

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