if i buy bitcoin with a paypal account and then change this bitcoin wallet to another bitcoin wallet and with that wallet transfer bitcoin with somebody paypal money on another new pay^pal account, can they reach from all where it all start or every thing is lost because it is crypt ?
If you want to transfer your bitcoin anonymously then it is indeed that you have to use a bitcoin mixer there may be many well known bitcoin mixers out there but the best mixers are being advertised here . Anyway I just wonder why do you want it to be anonymous
lol