My friend is asking me so I'll post it here because I have no idea. Basically the question is is this transaction gona be doublespended? there is like a U on there not sure what it stands for. https://blockchain.info/tx/e30c36568e24992cf41c68c28f7a08944b9d5177b0ec72c77d3d973dab1b0834?show_adv=true
