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Finally, let me say this I have found lots of BTC, and I just move-on, I'm not interested in collecting btc, as you can't sell it, its not private, it can't be sold, and I would never use it in an exchange, as its all tracked, so what would be the point? In fact I don't even own an exchange account.
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I would disagree about
"... can't sell it... its all tracked..." and so on
if you do know how to hack it, you can somehow figure out how to outwit tracking
can you proof by signing a message from one of the addresses that you found with big balance