How can you even guarantee a return? The best you could really do is less than a percent in dollars for a CD, and it's still not instant access to your money. You could purchase some type of bond, but that's even less access. 10% return, instant fund access and low risk don't go together at all.
Please see https://bitcointalk.org/index.php?topic=610293.msg6763227#msg6763227
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And @OP, you will have to provide a lot of transparency and show proof of your past (recent past as well). Not just short-term but long-term. Anyone can make a lot in a day or a week. Keeping that consistency for months or years is more difficult.
If I upload my anonymised statement data for the past 17 months, would that suffice?
If there's any way to prove it's yours, anything helps,
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