Zcash

With a fixed supply of 21 million ZEC and a halving schedule similar to Bitcoin, Zcash allows users to prove transactions are valid without revealing sensitive information like wallet balances, transaction amounts, or participant identities, making it suitable for everyday payments, long-term savings, and cross-border money transfers where financial confidentiality matters.

The protocol operates on its own blockchain currently using Proof-of-Work consensus, though it's evolving toward Proof-of-Stake through the planned "Crosslink" upgrade to enhance security, scalability, and energy efficiency. Zcash employs trustless zero-knowledge proofs (Halo) within its Orchard shielded pool to verify transactions without revealing sender, receiver, or amount information.