I use exchange websites to withdraw my bitcoins for fiat to my bank account. I wish to know that if in case the bank asks about the source of the income and source of bitcoins, what would I proof can I give them? I commonly earn from signature campaigns, freelance tasks and translations but giving them the complete details would be too much.
Has anyone ever provided proof or their source of bitcoins to any bank or legal organization? What would be the best way to prove it?
This is pretty easy and hard. The reason why I said it hard is because the government law of the country in reside may not approve bitcoin. However, most countries had sign bitcoin into their law and if country is not part of those countries you have a lot of home work to do. But I will advice you to use a legit/register exchanger, set up your account on your genuine name and have a picture copy of every transaction you do to be in case.