what's Firo (formerly Zcoin)?

Firo is a privacy-centric cryptocurrency designed to enable secure, untraceable transactions through advanced cryptographic protocols. Originally launched as Zcoin in 2016, it pioneered the use of the Zerocoin Protocol, which allows users to break the link between transaction history and coin ownership using zero-knowledge proofs. After rebranding to Firo, the project evolved its privacy mechanisms, incorporating the Sigma protocol for optional anonymity in transactions and later the Lelantus protocol, which enables full coin mixing without relying on a trusted setup. This makes Firo suitable for users seeking financial privacy in a decentralized manner, with features like non-interactive zero-knowledge proofs ensuring that transaction details remain shielded while maintaining verifiability on the blockchain. The Firo network operates on a proof-of-work consensus with ASIC-resistant mining to promote decentralization, and it includes masternode incentives for enhanced network security and governance. Users can choose between transparent and shielded transactions, providing flexibility for privacy needs. Firo aims to set standards for privacy in digital currencies, fostering applications in areas requiring confidentiality without compromising the integrity of the ledger.

Firo's Spark Assets mainnet launch is scheduled for Q1 2026.