Let’s say you are collecting BTC from multiple addresses and sending it to one particular address. For example, you have 3 addresses:
Address A: 1 BTC
Address B: 2 BTC
Address C: 1 BTC
You want to send all the BTC to Address D, so you would expect to send 4 BTC minus the transaction fee. You don’t need a change address since you want to collect all the BTC and then move it to some exchange.
Now, let’s say you instruct the blockchain to send 3.9 BTC to Address D and leave 0.1 BTC for the transaction fee.(only example fee for ilustration purpose)
Question:
If someone accidentally sends 0.5 BTC to Address A before the transaction is initiated, will the entire remaining balance (0.5 BTC) be used as a fee for the miner or it will remain there or will the transaction be rejected? Or what would happen to this additional BTC?
