Today I took some time to mess around with the bit Python library, which I find pretty easy to use. I have been wanting to do some Bitcoin programming for a while, so I decided to create a simple web wallet to test creating and broadcasting transactions. I'm obviously using testnet for this.
I initially used a testnet faucet to send two transactions to a main address, 0.0005 and 0.0001 tBTC to get started. I used my code to check for this address' balance and got 0.0006, cool. I then proceeded to used my newly developed web wallet to send two transactions to another address, both with a value of 0.00001 tBTC. I immediately noticed the balance from my main address was off, showing me 0.000028 tBTC which to me makes no sense, it should have been something close to 0.00058. I used blockcypher to check on those transactions (which are unconfirmed, but I believe this is irrelevant) to make sure my code was ok. Sure enough, 0.00001 tBTC was sent twice to the correct address, but the change sent back to the sender address is way off. What exactly happened here?
Thanks in advance!