Coin Toss | Bitcointalksearch.org

saif313

member

Activity: 84

Merit: 10

Quote from: BRules on September 17, 2013, 01:20:06 PM

Quote from: Sothh on September 17, 2013, 11:57:42 AM

Hey guys,

Trying out a very simple provably fair betting game.

Simply send the bet to 1HzFQEekH7pAPWLRGDoxPPeNyPiXBAVxiV and if the last digit of the TXID is an even number you win 1.98X your bet.

Max bet size is .2 BTC for now.

If this is some how exploited (IE I get 1000 bets in a row, all winning from the same person) I reserve the right to refund the bets and stop the service.

this is easy to exploit with raw transactions, just keep signing a raw transaction until we get an even number at the end

now I understand this many peoples win few days back but now suddenly all end

BRules

sr. member

Activity: 293

Merit: 250

Quote from: Sothh on September 17, 2013, 11:57:42 AM

Hey guys,

Trying out a very simple provably fair betting game.

Simply send the bet to 1HzFQEekH7pAPWLRGDoxPPeNyPiXBAVxiV and if the last digit of the TXID is an even number you win 1.98X your bet.

Max bet size is .2 BTC for now.

If this is some how exploited (IE I get 1000 bets in a row, all winning from the same person) I reserve the right to refund the bets and stop the service.

this is easy to exploit with raw transactions, just keep signing a raw transaction until we get an even number at the end

Sothh

full member

Activity: 238

Merit: 100

Hey guys,

Trying out a very simple provably fair betting game.

Simply send the bet to 1HzFQEekH7pAPWLRGDoxPPeNyPiXBAVxiV and if the last digit of the TXID is an even number you win 1.98X your bet.

Max bet size is .2 BTC for now.

If this is some how exploited (IE I get 1000 bets in a row, all winning from the same person) I reserve the right to refund the bets and stop the service.

Exploit was pointed out that prevents this sort of game.

Topic: Coin Toss (Read 551 times)