# Private and open-source alternatives to Bitcoin

1. [Monero](https://privacyratings.com/cryptocurrencies/monero/): A (100/100). Cryptocurrency that hides the sender, receiver and amount of every transaction by default, using ring signatures, stealth addresses and RingCT.
2. [Bittensor](https://privacyratings.com/cryptocurrencies/bittensor/): B (80/100). Decentralized network where subnets compete to produce machine learning and other digital work, rewarded in its TAO token. All transactions and balances are recorded on a public blockchain.
3. [Ethereum](https://privacyratings.com/cryptocurrencies/ethereum/): B (75/100). Decentralized blockchain platform for smart contracts and applications, with Ether as its native currency. All transactions and contract activity are recorded on a public blockchain.
4. [Zcash](https://privacyratings.com/cryptocurrencies/zcash/): C (70/100). Cryptocurrency that uses zero-knowledge proofs to offer shielded transactions, which hide the sender, receiver and amount. Transparent transactions are also supported, so privacy depends on using shielded addresses.

Source: https://privacyratings.com/alternatives/bitcoin/