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Author Topic: Double-spend insurance for 0-conf transactions?  (Read 1149 times)
TooDumbForBitcoin (OP)
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April 08, 2014, 07:37:59 PM
 #1

It's been a while (several hours, at least) since I've posted a dumb question, and I need the practice.

Is there an opportunity in the bitcoin economy for selling double-spend insurance to merchants who believe their best business practice is to accept 0-conf transactions?








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Once a transaction has 6 confirmations, it is extremely unlikely that an attacker without at least 50% of the network's computation power would be able to reverse it.
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bitcoinbeliever
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July 25, 2014, 04:28:45 AM
 #2

Not a bad idea, but the bitcoin network is working against you.  It silently buries all evidence of double-spend attempts.  Here is data from one node that publishes the re-spend attempts that it sees though.

http://respends.thinlink.com

Malin Keshar
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July 25, 2014, 09:20:21 AM
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Deppends how often people in fact try to double spend with 0 confirmation transaction.

Usually business that use 0-conf transactions(casinos, and online stores) only allow withdraw after confirmations, or just don't ship until confirmation.
Shogen
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July 25, 2014, 01:58:24 PM
 #4

Not a bad idea, but the bitcoin network is working against you.  It silently buries all evidence of double-spend attempts.  Here is data from one node that publishes the re-spend attempts that it sees though.

http://respends.thinlink.com

Thanks for sharing the page.
That is interesting, but I can't find the meaning of those green, yellow and red boxes.
Do you know what they represent?



Forget it, it is right in the bottom of the page. Smiley


goose20
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July 25, 2014, 02:35:09 PM
 #5

It's been a while (several hours, at least) since I've posted a dumb question, and I need the practice.

Is there an opportunity in the bitcoin economy for selling double-spend insurance to merchants who believe their best business practice is to accept 0-conf transactions?


I'd say definitely. People will always try to get one over on others unfortunately - and as long as that holds true, I think there will be a market for said insurance.

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July 27, 2014, 04:15:48 AM
 #6

There might be a market, but everyday merchants will use something like BitPay. Merchants that process their own Bitcoin transactions are very low.
SHA255
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July 27, 2014, 09:53:58 PM
 #7

I think there would be a market for this, however it would be very easy for the merchant to abuse the insurance company.

The merchant could simply send funds to themselves for a "purchase" and attempt to double spend the transaction, whenever they are successful they would file a claim with the insurance company. The merchant would have no losses but would be paid by the insurance company (the insurance company would think they have losses). 
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