From address

[Suushi]

Hey! I couldn't find any info about this, but I'd need to get the sender's address that sent bitcoins to me using debug commandline.. is it possible? I couldn't find any functions that will display the sender's address.

[1715028452]

1715028452

[dserrano5]

Hey! I couldn't find any info about this, but I'd need to get the sender's address that sent bitcoins to me using debug commandline.. is it possible? I couldn't find any functions that will display the sender's address.

This "sender" concept has been asked and answered several times in the forum. Have you done any research?

[Suushi]

As you might notice from my sentence.. first few words indicated that I have researched it, but since I haven't found anything useful, I thought I'll ask for help.
And instead of asking it, it would have been very nice of you to point me to the right direction.

[Stephen Gornick]

As you might notice from my sentence.. first few words indicated that I have researched it, but since I haven't found anything useful, I thought I'll ask for help.
And instead of asking it, it would have been very nice of you to point me to the right direction.

The word "sender" may be confusing.   There are INPUTs and OUTPUTs in a transaction.  You are asking how to know what were the INPUTs to your transacion.

Raw transactions API will give this info.  Here's a thread on it:

As was pointed out, getrawtransaction <txid> 1    will do the decode for you.

So given a trasnsaction hashi, get the raw transaction then decode it to get the UTXOs used.

[Edit: And the typical disclaimer here ... payments from a hosted (shared) E-Wallet account will show an INPUT that is not for the same E-Wallet account as the party that sent the payment.   That's why SatoshiDICE includes the warning about only using approved clients like Bitcoin-Qt/bitcoind, Multibit, blockchain.info/wallet, etc., and to not send from an exchange or hosted (E-Wallet) services.]

[MatthewLM]

Try using blockchain.info. http://blockchain.info/address/[YOUR_RECEIVING_ADDRESS_GOES_HERE]

[DannyHamilton]

Bitcoin doesn't really support the concept of a "sender's address" very well at all.

If you want an address that you can use to identify a sender, you should ask them to give you an address.

Bitcoin uses a concept of unspent outputs as a source of value for transactions.  Those outputs may or may not belong to the sender, and may or may not be associated with one or more addresses.

[Suushi]

Hey thanks for the advice guys...

I was wondering too about satoshidice's concept.. how they got the senders address.
Also , I'm not sure right now, but blockchain.info is little bit slow..

[DannyHamilton]

- snip -
I was wondering too about satoshidice's concept.. how they got the senders address.
- snip -

SatoshiDice is a very poor model that causes several problems for users.  It is best not to try to implement anything using that model, you are likely to frustrate many customers eventually.

That being said, you can identify the transaction outputs being spent if you use getrawtransaction, and from there you can look up each of those transaction hashes in the blockchain to determine where each output was originally sent.  These are not necessarily "sender's addresses", but in certain cases they may be addresses under the control of the sender.

I believe that SatoshiDice has written their own code for the process described.  Additionally, they may be looking up transactions received from peers as well as transactions in the blockchain so that they can respond to transactions with 0 confirmations.

[CasinoBit]

Not trying to sound like a douche but the last thing the community needs is a couple more poorly implemented Bitcoin casinos to stain the reputation of the rest of Bitcoin casinos, the minimum requirements for creating a Bitcoin casino are already pretty much non-existent, with highschool students starting casinos in their parents basements.

Consider how damaging it will be to the people if your casino is robbed and tens of thousands of dollars are lost, people will lose months of their lives in savings, or even worse, someone might decide to take his/her own life after his account is lost due to the coins being handled in an unprofessional manner.

[Suushi]

Well, thanks for your honest opinion

I'm not a high school kid.. I'm a college teacher with over 10 years of programming experience

Also what I created was for our local charity so it's all good.