Bitcoin itself is a chore to anonymize properly AND to feel 100% safe after doing it.<p>I know some people like Monero (crypto note ring signature based, not Satoshi base) but as far as using bitcoin base code, Dash (formerly darkcoin) has the best coin join like solution.<p>It&#x27;s a decentralized, passive (done before any real transaction), denominated mixing with up to 16 rounds. Obtaining less than a 1% chance of unmasking a SINGLE transaction in their model would cost millions of $.<p>I don&#x27;t bitcoin is going anywhere but the flexibility some of these altcoins have is amazing for development. Dash (digital+cash) btw, wants to fix every problem with bitcoin.<p>They have anonimity, incentivized full nodes which share the block reward, instant transactions (5 of 6 confirmations within a few seconds) and more recently a model to fund development of the currency directly on the blockchain. Developers propose projects which are voted on and the blockchain itself sets aside the budget.