Bitcoin Forum

Other => Beginners & Help => Topic started by: jgm on April 08, 2013, 01:42:10 PM



Title: Proof of Origination of Transaction
Post by: jgm on April 08, 2013, 01:42:10 PM
For a given transaction, how can I prove that I was the originator?

Given that I hold the private key of the originator for a given transaction, can I produce some sort of signature after the fact that proves this, or would I have to originate an additional transaction to provide proof?


Title: Re: Proof of Origination of Transaction
Post by: DannyHamilton on April 08, 2013, 03:21:45 PM
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can I produce some sort of signature after the fact that proves this
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Yes.

Some clients/wallets, such as Bitcoin-Qt, have this ability built in.


Title: Re: Proof of Origination of Transaction
Post by: jgm on April 09, 2013, 01:58:36 PM
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can I produce some sort of signature after the fact that proves this
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Yes.

Some clients/wallets, such as Bitcoin-Qt, have this ability built in.

Thanks for the answer; I'm curious as to if there is any way in which additional information can be added to the transaction prior to signature generation, to allow for a challenge/response from the recipient?