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Bitcoin => Bitcoin Discussion => Topic started by: Balcerek on December 11, 2010, 06:15:03 PM



Title: transfer confirmation?
Post by: Balcerek on December 11, 2010, 06:15:03 PM
i wonder how can i prove that i made transfer to somebody? the reciver may claim that he/she didn't get anything from me. is there any technical possibility to prove it?


Title: Re: transfer confirmation?
Post by: The Madhatter on December 11, 2010, 07:04:16 PM
Yes. Use the Bitcoin Block Explorer (BBE). Search the forums for the URL and its use. :)


Title: Re: transfer confirmation?
Post by: Stephen Gornick on December 11, 2010, 07:37:51 PM
This might be of use to you as well -- ClearCoin escrow:
  http://clearcoin.appspot.com/

The first 100 BTC of each transaction is free, with the escrow fee at 1% for anything over that.

So to protect yourself when sending, you can put the amount you are sending in escrow and then immediately release it.  The result is a publicly visible record that N Bitcoin were sent to XXXX...XXXX address on a date that could have been one of three different values (depending on whether the escrow expiration was 1 months, 6 months or 12 months out.). 

Here's an example of a completed transaction that occurred on Dec 7, 2010:
   https://clearcoin.appspot.com/status/r_T89JAvkdiuTHbWCHCKyFTF

That, along with the instruction from the recipient showing what Bitcoin address you were supposed to send payment to, ... and you end up with a pretty convincing argument that the funds were truly sent.


Title: Re: transfer confirmation?
Post by: davout on December 11, 2010, 08:12:33 PM
Yes, it's pretty easy to prove you actually sent X coins to an Y address


Title: Re: transfer confirmation?
Post by: MoonShadow on December 12, 2010, 12:31:05 AM
i wonder how can i prove that i made transfer to somebody? the reciver may claim that he/she didn't get anything from me. is there any technical possibility to prove it?

Yes, although the current client doesn't yet do this, it would be possible to use the keypair that produced the address used to send the coins to 'sign' an electronic receipt, proving that the coins that Bitcoin Block Exployer shows went to the receiver were sent by yourself.  There are many little tidbits like this that the system allows, but that are not yet performed.