I got twenty bits and I don't know from where. Is there a way to tell where it came from?

you get them daily 10 bits daily

You get 10 bit daliy

have you made shirts?

Click the currency icon on the top right of your screen. (Should take you here: https://www.brick-hill.com/currency)

Go under the “transactions” tab and click the drop down menu that says purchases and select sales.