http://whirtorrgetftvz4g466sjqkegtyi35bjl4bvotfkfossunf5my4x6ad.onion/blog/privacy-coins
Like Monero, Beam is private by default, which means that the transactions over Beam do not leave any trace, since they are not stored on the blockchain. In a way, Beam works a bit similar to Bitcoin, through the usage of Unspent Transaction Outputs (UTXOs), but to keep everything private, it encrypts them by so-called “blinding factors,” improving the privacy of this coin.