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Title: Question about txn Post by: apoorvlathey on March 30, 2016, 02:12:54 PM I see many a times that the sender address sends some amount to others and a lot larger amount is received by that address only. How is this possible that the sender is sending Bitcoins to himself. For example view here :
https://blockchain.info/tx/f9979da318152a9c2f7f76dbed35218088d56e0fa3f8355536b7a95b92a2b0f4 (https://blockchain.info/tx/f9979da318152a9c2f7f76dbed35218088d56e0fa3f8355536b7a95b92a2b0f4) In this transaction the last address in the receiver's address is that of the sender's address. Please Explain. Title: Re: Question about txn Post by: shorena on March 30, 2016, 02:18:41 PM I see many a times that the sender address sends some amount to others and a lot larger amount is received by that address only. How is this possible that the sender is sending Bitcoins to himself. For example view here : https://blockchain.info/tx/f9979da318152a9c2f7f76dbed35218088d56e0fa3f8355536b7a95b92a2b0f4 (https://blockchain.info/tx/f9979da318152a9c2f7f76dbed35218088d56e0fa3f8355536b7a95b92a2b0f4) In this transaction the last address in the receiver's address is that of the sender's address. Please Explain. Its called change. When you receive 1 BTC in a single transaction you have to spend it entirely. Kind of like a 1 BTC bill. It can also be a 0.12345678 btc bill. If you want to spend 0.25 BTC of your 1 BTC bill you get 0.75 BTC as change (no fee for simplicity). Good wallets use a new address to receive the change. The TX you provided however was created by blockchain.info which tends to reuse the same address, thus the change is send "back" to the address the initial bill was recieved on. Title: Re: Question about txn Post by: HCLivess on March 30, 2016, 03:13:29 PM I see many a times that the sender address sends some amount to others and a lot larger amount is received by that address only. How is this possible that the sender is sending Bitcoins to himself. For example view here : https://blockchain.info/tx/f9979da318152a9c2f7f76dbed35218088d56e0fa3f8355536b7a95b92a2b0f4 (https://blockchain.info/tx/f9979da318152a9c2f7f76dbed35218088d56e0fa3f8355536b7a95b92a2b0f4) In this transaction the last address in the receiver's address is that of the sender's address. Please Explain. Its called change. When you receive 1 BTC in a single transaction you have to spend it entirely. Kind of like a 1 BTC bill. It can also be a 0.12345678 btc bill. If you want to spend 0.25 BTC of your 1 BTC bill you get 0.75 BTC as change (no fee for simplicity). Good wallets use a new address to receive the change. The TX you provided however was created by blockchain.info which tends to reuse the same address, thus the change is send "back" to the address the initial bill was recieved on. Good wallets use a new address which is not backed up with your normal wallet to receive the change there, fixed it for you Title: Re: Question about txn Post by: shorena on March 30, 2016, 08:00:11 PM I see many a times that the sender address sends some amount to others and a lot larger amount is received by that address only. How is this possible that the sender is sending Bitcoins to himself. For example view here : https://blockchain.info/tx/f9979da318152a9c2f7f76dbed35218088d56e0fa3f8355536b7a95b92a2b0f4 (https://blockchain.info/tx/f9979da318152a9c2f7f76dbed35218088d56e0fa3f8355536b7a95b92a2b0f4) In this transaction the last address in the receiver's address is that of the sender's address. Please Explain. Its called change. When you receive 1 BTC in a single transaction you have to spend it entirely. Kind of like a 1 BTC bill. It can also be a 0.12345678 btc bill. If you want to spend 0.25 BTC of your 1 BTC bill you get 0.75 BTC as change (no fee for simplicity). Good wallets use a new address to receive the change. The TX you provided however was created by blockchain.info which tends to reuse the same address, thus the change is send "back" to the address the initial bill was recieved on. Good wallets use a new address which is not backed up with your normal wallet to receive the change there, fixed it for you A separate backup for every time a change address is created does not sound like a good wallet to me. Mabye I missunderstood your point? |