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Title: confirmations on change address Post by: flower1024 on September 11, 2012, 07:57:25 AM hi,
just a small question: if i send a transaction the change goes to another address (i am speaking about reference implementation). why aren't there any confirmations needed? it seems to be a normal transaction. what would happen if i use a wallet (e.g. blockchain.info) and use another partys address as a change address. would he need to wait for confirmations (i guess yes, because i dont see a way to distinguish between change and "real" transaction? Title: Re: confirmations on change address Post by: Revalin on September 11, 2012, 08:38:06 AM Waiting for confirmations isn't a network requirement. It's just a trust issue.
You can automatically trust your own change. You're not going to double-spend attack yourself, so there's no need to wait. The "change" has no technical difference from the "payment". It's just two outputs. For example, consider these two transactions: Address A has 1 BTC You pay 0.75 BTC to B You receive 0.25 BTC change to C Address A has 1 BTC You pay 0.75 BTC to B and 0.25 BTC to C There is no change left over The only difference is in the first, address C was automatically generated by your client; in the second, you entered it manually. From a network and blockchain perspective these two transactions are identical, bit for bit. |