Sponsored Link:   Alt.Estate - ERC20 for Real Estate. Live Prototype in Japan, USA, EU.Buy ALT tokens. Endorsed by partners of PWC, Knight Frank.
Contract Overview
Balance: 2.273185124656683987 Ether
Ether Value: $1,306.90 (@ $574.92/ETH)
Transactions: 395 txns
Token Contract: EthPyramid (EPY)
 Latest 25 txns from a total Of 395 transactions
View All

TxHash Age From To Value [TxFee]
0x444a5f9808c2b8ff7324c3af4add346678b0de930a39e7bed636fbdf65f5d0dc23 mins ago0xaec539a116fa75e8bdcf016d3c146a25bc1af93b  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000229635
0xcbfd3c5a8125a77480617ed0480687698098e56ba9880014425f3ce6a4fdc0a115 hrs 22 mins ago0x391a3ea52c4a9f04be6900c3fd057dd9676c72e1  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000312415
0x581bbc6d0c8d090f354cea7ad3f0639d06aad63d1f63e3cd2956d92bf0acc4b723 hrs 23 mins ago0x341c48c0e833e179cca6c605b823e9a4911a3d00  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.00062483
0x8b0e65d16f847ae1c87be7f73498fbeaa95be063f2e921d571e67df8589f98622 days 4 hrs ago0x55611b747af18e27ba99c251377912fcd96ea656  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000374898
0x9c9b39fd5c608cdc425974c4461c895340a4e328967bfe6c05431aca773e863d2 days 10 hrs ago0xaec539a116fa75e8bdcf016d3c146a25bc1af93b  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000275562
0x58fdd5413b09b6c02bee617fe7209e7950c988b34a16b571996484dc03b9de272 days 13 hrs ago0x3e9f41ac3068bbb232dc422ec9d2857866b24c3d  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000499864
0x1c7d3564855cd86c9b917c6ef74e51637f6f7ee1472c384b2c9b2d7bd0afd0f72 days 14 hrs ago0x3e9f41ac3068bbb232dc422ec9d2857866b24c3d  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000413343
0x9821f29c63ba1c935afcae016fd143945983b2874741282095d9c3d155d464ca2 days 19 hrs ago0x3d2084d65cd56583aaf306e38db432a399b34b63  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000812279
0xf7dbca5887655b992ba49a8c2f1b32a08f18521344658fe54ed30ef77fcc13f12 days 19 hrs ago0x868234b7ce5793279c7b5258410acd894c95f41f  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000687313
0x6524cac1ce6378ec1805e06bb711af6e3f9a0516739544f44d84d2d71d7d5b795 days 5 hrs ago0x739521d1a43d4a7e1c6b8a3d5c39906455ed3a45  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00.01 Ether0.000622755
0xd98e21917cf008ba8962f8f72737166ef6930daf36eabc749cccf5fa41f0837d11 days 13 hrs ago0xbd6e69144841557cf7757045716628f574167cf0  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000413343
0xfadce80a674e4a8c3a2c80a1de7bfda0cf1990239ab0f9b8dababc5e7b76de4111 days 14 hrs ago0xbd6e69144841557cf7757045716628f574167cf0  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000342729
0x700c8b63ff2f9875c3f2738048fab996365f3d9ba3db056785052e54b2d1373112 days 11 hrs ago0xb9cc1875eec851548cb7eca33ecc643fce9d44e3  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.00037552283
0xbe869fd0f3b5c2ef4252340c7b5767b63d65566bee9d615178070e338e4f210c12 days 21 hrs ago0x4679d1a53a06d5853d8043855705be6e5df2717c  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000499864
0x685650c4a4eeb29e39f581e8412356ce6d59f12c538004714ec289a5c4ab30d413 days 21 hrs ago0xaec539a116fa75e8bdcf016d3c146a25bc1af93b  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000183708
0x34ad16cf30ab7c97a9e84de276c97b7e1d5fa6eb53cdb102db1e660a41e8239614 days 8 hrs ago0x9a0cf297c8143d8e08296f5257ba81081b1a2e5b  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000187449
0x02b39adc680a5458f1b41c7cef99aa95f62800f3454dd3ce4cbd8025d1e79d0214 days 9 hrs ago0x1ed45acba1c716c8fbe88aa35d27842fb612e20a  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000187449
0x287ba46e243cf64421970a65716d79a80d626dcaa4215eddc2aed2326c3fdda516 days 21 hrs ago0x3052e2dbf3c84cf0b9693ebe6a7ef1b11b93cd42  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000229635
0x2d7ecbfd380f331c390485c07e40d01b57f890bb68ce0f36927e32990b09b2d116 days 22 hrs ago0x3052e2dbf3c84cf0b9693ebe6a7ef1b11b93cd42  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000190405
0x87a6a2a732676c29e3e047866c6aca460e3a18c0916b8897918d208f3310e46f17 days 58 mins ago0x4679d1a53a06d5853d8043855705be6e5df2717c  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00.003 Ether0.000622755
0x1b502f398f43d19980e121f7dd209bcab13a99dadce6b38826cc043a7225efae18 days 20 hrs ago0x361084af8d45e07885b31fcedcb642b9cc7b72d7  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00.002705 Ether0.00023586
0x205dd260caad9181deceef0f2491b8206d65f537d2c0af8d4feace0e9c730ec123 days 17 hrs ago0x341c48c0e833e179cca6c605b823e9a4911a3d00  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000137781
0x4ceda2250cede7bec5f82762a8b2a946decf270107ac02928d65ec1a380714ce24 days 21 hrs ago0x3052e2dbf3c84cf0b9693ebe6a7ef1b11b93cd42  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.000091854
0xed1aba07ff502ee104a65232975dc32c1864ec14a627f1e8524f744550d8aa8d25 days 13 hrs ago0x391a3ea52c4a9f04be6900c3fd057dd9676c72e1  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00 Ether0.0000688905
0xc65503592d5cf22f6274fa70e92f13dd36775f1c51089f9c8a7817ece6c122bb25 days 15 hrs ago0xa95b42b41d84d5cd176df38efdfa0d8706018f21  IN   0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00.025 Ether0.00017793
[ Download CSV Export  ] 
 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
0x444a5f9808c2b8ff7324c3af4add346678b0de930a39e7bed636fbdf65f5d0dc568490923 mins ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00xaec539a116fa75e8bdcf016d3c146a25bc1af93b0.021509476250596142 Ether
0xcbfd3c5a8125a77480617ed0480687698098e56ba9880014425f3ce6a4fdc0a1568145815 hrs 22 mins ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x391a3ea52c4a9f04be6900c3fd057dd9676c72e10.207979702640580035 Ether
0x581bbc6d0c8d090f354cea7ad3f0639d06aad63d1f63e3cd2956d92bf0acc4b7567952223 hrs 23 mins ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x341c48c0e833e179cca6c605b823e9a4911a3d000.045329541057284287 Ether
0x8b0e65d16f847ae1c87be7f73498fbeaa95be063f2e921d571e67df8589f986256726362 days 4 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x55611b747af18e27ba99c251377912fcd96ea6560.014049073829870068 Ether
0x9c9b39fd5c608cdc425974c4461c895340a4e328967bfe6c05431aca773e863d56711752 days 10 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00xaec539a116fa75e8bdcf016d3c146a25bc1af93b0.091213152365402352 Ether
0x58fdd5413b09b6c02bee617fe7209e7950c988b34a16b571996484dc03b9de2756705862 days 13 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x3e9f41ac3068bbb232dc422ec9d2857866b24c3d0.7390877533355126 Ether
0x1c7d3564855cd86c9b917c6ef74e51637f6f7ee1472c384b2c9b2d7bd0afd0f756703672 days 14 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x3e9f41ac3068bbb232dc422ec9d2857866b24c3d0.013429880661255968 Ether
0x9821f29c63ba1c935afcae016fd143945983b2874741282095d9c3d155d464ca56691272 days 19 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x3d2084d65cd56583aaf306e38db432a399b34b630.302266248401907595 Ether
0xf7dbca5887655b992ba49a8c2f1b32a08f18521344658fe54ed30ef77fcc13f156690762 days 19 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x868234b7ce5793279c7b5258410acd894c95f41f0.098954153806140415 Ether
0xd98e21917cf008ba8962f8f72737166ef6930daf36eabc749cccf5fa41f0837d561965411 days 13 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00xbd6e69144841557cf7757045716628f574167cf00.023089278110133074 Ether
0x700c8b63ff2f9875c3f2738048fab996365f3d9ba3db056785052e54b2d13731561447012 days 11 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00xb9cc1875eec851548cb7eca33ecc643fce9d44e30.068414997943768615 Ether
0xbe869fd0f3b5c2ef4252340c7b5767b63d65566bee9d615178070e338e4f210c561220512 days 21 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x4679d1a53a06d5853d8043855705be6e5df2717c0.002391197377787795 Ether
0x685650c4a4eeb29e39f581e8412356ce6d59f12c538004714ec289a5c4ab30d4560635113 days 21 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00xaec539a116fa75e8bdcf016d3c146a25bc1af93b0.00978631959018028 Ether
0x34ad16cf30ab7c97a9e84de276c97b7e1d5fa6eb53cdb102db1e660a41e82396560387614 days 8 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x9a0cf297c8143d8e08296f5257ba81081b1a2e5b0.022746475800577884 Ether
0x02b39adc680a5458f1b41c7cef99aa95f62800f3454dd3ce4cbd8025d1e79d02560373914 days 9 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x1ed45acba1c716c8fbe88aa35d27842fb612e20a0.095368584220871376 Ether
0x287ba46e243cf64421970a65716d79a80d626dcaa4215eddc2aed2326c3fdda5558921716 days 21 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x3052e2dbf3c84cf0b9693ebe6a7ef1b11b93cd420.010003545670838162 Ether
0x205dd260caad9181deceef0f2491b8206d65f537d2c0af8d4feace0e9c730ec1554999923 days 17 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x341c48c0e833e179cca6c605b823e9a4911a3d000.008854713145696696 Ether
0x4ceda2250cede7bec5f82762a8b2a946decf270107ac02928d65ec1a380714ce554339824 days 21 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x3052e2dbf3c84cf0b9693ebe6a7ef1b11b93cd420.000390673037630944 Ether
0xed1aba07ff502ee104a65232975dc32c1864ec14a627f1e8524f744550d8aa8d553976025 days 13 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x391a3ea52c4a9f04be6900c3fd057dd9676c72e10.005886075401694857 Ether
0x14ea66c9998e90de64e6a6683dcd4b4aa78487886e1fdb8b99e928f18643a3a0552418428 days 6 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00xaec539a116fa75e8bdcf016d3c146a25bc1af93b0.010258223713473789 Ether
0xb10a3b560384edbb8338b305e1b35c54d13ca2194874b9a258612495f8025f12552417428 days 6 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x8da4f82dc4d03c5421bb2087f858750c650d85710.158447685617908039 Ether
0x26ff49cb1df9f17c19f460eb0064c2cc8b449923b668f7586d857399ef2b789a551195230 days 9 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x36ed2d75a82e180e0871456b15c239b73b4ee9f40.006578667894350493 Ether
0x2515041426f50a5a75948ba8ba8b591694bef0688b47d7f5aad86b1bdc3c7534550038432 days 9 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00xb9cc1875eec851548cb7eca33ecc643fce9d44e30.001393812263038333 Ether
0x3fa84b70f29471c2f6c0199fddb0af603985dca6741c673e643027c776ad30d7549984132 days 11 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x66c25415ff086244b2c9119c4a15d7e150bd42480.000399149605953457 Ether
0x7cd68219571249ae6e59cd87c3d42fad718e492230f273264c9ba47198104985549767532 days 20 hrs ago0xa6230691b2b1cff2f9737ccfa3ff95d580e482a00x415e94a5246ac4d3f16a833f51ff9066f215a4210.000667934907372158 Ether
[ Download CSV Export  ] 
Contract Source Code Verified (Similar match)
Note: Displaying similar matching verified source code at contract 0xc908a34165d2720d12ffcfb6b99b47161b1c9946(excluding Constructor Arguments if any)
Contract Name: EthPyramid
Compiler Version: 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
6060604052341561000f57600080fd5b610d1a8061001e6000396000f3006060604052600436106101115763ffffffff7c010000000000000000000000000000000000000000000000000000000060003504166306fdde03811461013257806318160ddd146101bc578063313ce567146101e157806339ffe67c1461020a5780633ccfd60b146102295780634b7503341461023c57806362dbf2611461024f57806365bcfbe71461026557806368306e431461028457806370a08231146102a35780638620410b146102c25780638b7afe2e146102d5578063957b2e56146102e857806395d89b41146102fb578063b1e352421461030e578063b60d428814610321578063b9f308f214610329578063bda5c4501461033f578063e555c1a314610358578063eedc966a1461036b575b60003411156101275761012261038a565b610130565b610130336103ba565b005b341561013d57600080fd5b61014561043d565b60405160208082528190810183818151815260200191508051906020019080838360005b83811015610181578082015183820152602001610169565b50505050905090810190601f1680156101ae5780820380516001836020036101000a031916815260200191505b509250505060405180910390f35b34156101c757600080fd5b6101cf610474565b60405190815260200160405180910390f35b34156101ec57600080fd5b6101f461047a565b60405160ff909116815260200160405180910390f35b341561021557600080fd5b610130600160a060020a03600435166103ba565b341561023457600080fd5b61013061047f565b341561024757600080fd5b6101cf610501565b341561025a57600080fd5b6101cf60043561052c565b341561027057600080fd5b6101cf600160a060020a0360043516610574565b341561028f57600080fd5b6101cf600160a060020a0360043516610586565b34156102ae57600080fd5b6101cf600160a060020a03600435166105bb565b34156102cd57600080fd5b6101cf6105d6565b34156102e057600080fd5b6101cf6105ed565b34156102f357600080fd5b6101306105f3565b341561030657600080fd5b610145610790565b341561031957600080fd5b6101306107c7565b61013061038a565b341561033457600080fd5b6101cf6004356107d7565b341561034a57600080fd5b6101cf600435602435610838565b341561036357600080fd5b61013061086a565b341561037657600080fd5b6101cf600160a060020a0360043516610880565b64e8d4a510003411156103b3576103a360055434610892565b6005556103ae6108a1565b6103b8565b600080fd5b565b60006103c533610586565b600160a060020a03331660009081526001602052604090208054604060020a830290810190915560038054909101905560055490915061040590826109f3565b600555600160a060020a03821681156108fc0282604051600060405180830381858888f19350505050151561043957600080fd5b5050565b60408051908101604052600a81527f457468507972616d696400000000000000000000000000000000000000000000602082015281565b60025481565b601281565b600061048a33610586565b600160a060020a03331660009081526001602052604090208054604060020a83029081019091556003805490910190556005549091506104ca90826109f3565b600555600160a060020a03331681156108fc0282604051600060405180830381858888f1935050505015156104fe57600080fd5b50565b600080600061051666038d7ea4c680006107d7565b915061052382600a610a05565b90910392915050565b600061056e610566680296abf784a358468b19600260016105558761054f610a1c565b01610a41565b0281151561055f57fe5b0501610b26565b6002546109f3565b92915050565b60016020526000908152604090205481565b600160a060020a03166000908152600160209081526040808320549183905290912054600454604060020a9102919091030490565b600160a060020a031660009081526020819052604090205490565b60006105e866038d7ea4c6800061052c565b905090565b60055481565b60008060008060008060008060008060008061060e33610586565b600160a060020a03331660009081526001602052604090208054604060020a83029081019091556003805490910190559b508b9a5064e8d4a510008b108061065f575069d3c21bcecceda10000008b115b1561066957600080fd5b3399508b610675610a1c565b0398506106838b600a610a05565b9750878b039650610694878d610838565b9550604060020a88029450600060025411156107105760016002036002888860025401604060020a8a8c8f0102028115156106cb57fe5b048115156106d557fe5b04604060020a03028115156106e657fe5b049350838802925082850394506002548381151561070057fe5b6004805492909104918201905591505b61071c60025487610892565b600255600160a060020a038a166000908152602081905260409020546107429087610892565b600160a060020a03909a166000908152602081815260408083209c909c5560045460019091529a902080549a9096029490940398890190945550506003805490960190955550505050505050565b60408051908101604052600381527f4550590000000000000000000000000000000000000000000000000000000000602082015281565b6107cf61086a565b6103b861047f565b6000806107e2610a1c565b90506002548314156107f657809150610832565b61082f8161082a60016002680296abf784a358468b196108198960025403610a41565b030281151561082457fe5b05610b26565b6109f3565b91505b50919050565b6000610863610566680296abf784a358468b1960026001610555888861085c610a1c565b0301610a41565b9392505050565b6000610875336105bb565b90506104fe81610c0a565b60006020819052908152604090205481565b60008282018381101561086357fe5b600080600080600080600080600064e8d4a510003410806108cb575069d3c21bcecceda100000034115b156108d557600080fd5b3398506108e334600a610a05565b975087340396506108f38761052c565b9550604060020a88029450600060025411156109765760016002036002888860025401604060020a8a8c610925610a1c565b01020281151561093157fe5b0481151561093b57fe5b04604060020a030281151561094c57fe5b049350838802925082850394506002548381151561096657fe5b6004805492909104918201905591505b61098260025487610892565b600255600160a060020a0389166000908152602081905260409020546109a89087610892565b600160a060020a039099166000908152602081815260408083209b909b5560045460019091529990208054999096029490940397880190945550506003805490950190945550505050565b6000828211156109ff57fe5b50900390565b6000808284811515610a1357fe5b04949350505050565b60006105e8610a29610ce5565b600354600254600454604060020a92910203046109f3565b60008080805b68016a09e667f3bcc908851115610a6957600285049450600190920191610a47565b5b67b504f333f9de64848511610a8c576002949094029360001990920191610a6a565b604060020a8501604060020a80870302811515610aa557fe5b05915050604060020a818002819005906801ffffffffff9dac9b67666664e5e9fa0c996738bd75ed37753d68673284a0c14610924f85028490050184028390056749254026a7630acf01840283900501830282900567aaaaaaac168779080183028290050183020567b17217f7d1cf79ac8460030b02019350505050919050565b6000808080604067b17217f7d1cf79ac682cb53f09f05cc627c887010503925067b17217f7d1cf79ac830285039450604060020a858602811515610b6657fe5b059150604060020a672aaaaaaaaa015db0660455956bccdd06651b893ad04b3919850283900501840282900566b60b60808399d01901840282900501830205604060020a600202019050848103604060020a86830102811515610bc557fe5b05935060008312610be95782846000821215610bdd57fe5b9060020a029350610c02565b82600003846000821215610bf957fe5b9060020a900493505b505050919050565b600080600080600080610c1c876107d7565b9550610c2986600a610a05565b94508486039350610c3c600254886109f3565b600255600160a060020a033316600090815260208190526040902054610c6290886109f3565b600160a060020a0333166000908152602081815260408083209390935560045460019091529181208054928a02604060020a880201928390039055600380548390039055600254919450901115610cdc57604060020a8502915060025482811515610cc957fe5b049050610cd860045482610892565b6004555b50505050505050565b600554349003905600a165627a7a723058206c7d107dcbe6f00e6ccb3d36b76f1e1c60de2a3c015200fad50d432f2f7f92f30029

   Swarm Source:
bzzr://6c7d107dcbe6f00e6ccb3d36b76f1e1c60de2a3c015200fad50d432f2f7f92f3

 

View All
Block Age txn Difficulty GasUsed Reward
View All
Block Age UncleNumber Difficulty GasUsed Reward
Make sure to use the "downvote" button for any spammy posts, and the "upvote" for interesting conversations.