Suppose I want to share my public key for donations, but the problem is everyone can see how many btc I have. Suppose I create a second account for donations but now people can see where all the btc goes from there and cunclude it's my address. How to share a public key and still hide my savings?
When you keep the same address for donations, people are always able to see how much donations you received. You need to change the donation address frequently to mask that. If you want to hide you savings, the easiest way is to use the donation address for spending only.
So, my ultimate recommendation:
Provide 2 options:
1 bitcoin address for donations, where you'd do whatever has been described above to try and keep it as traceless as possible
1 monero address for donations, because if someones really concerned with traceability they'd use a cryptocurrency with actual privacy features
and, I guess I should put it in here too to be fair, 1 darkcoin address because darkcoins all the rage these days
of course you'd have to deal with exchanging the alts for bitcoin (or deciding to hold them), but yeah.
Alt coins are very very volatile, the altcoin may lose value and crash overnight like what happened to darkcoin before. If you use a mixer and a new address for every transaction, you would most likely not get traced.
Use a bitcoin mixing service. They act as a "middle man" to provide more anonymity to the transaction. See my signature for a link to Bitmixer.Io
Never used any mixing services but i ask: what if the coins are of criminal procedence? can you get in trouble under any scenareo or its imposible to know where the coins from?
To be honest, almost every wallet have traces of taint coins and I haven't seen anyone getting caught because of that. Since the bitcoin can also be from a exchange or other website, most people wouldn't care what is the source of your coins unless you spend a address that is linked to criminal activity to your wallet which is impossible unless you have the private key.
