Overview

Firo is a privacy-focused Layer 1 cryptocurrency and ecosystem dedicated to advancing confidentiality, security, and decentralization in digital finance. As a leader in blockchain privacy research, Firo has pioneered several groundbreaking protocols, including Zerocoin, Sigma, Lelantus, and its latest innovation, Lelantus Spark, which enables trustless, on-chain privacy with large anonymity sets. In addition to transaction-level protection, Firo extends privacy to asset types themselves through Spark Assets, allowing creation and transfer of fully concealed tokens ideal for sensitive applications such as voting or private tokenized assets. Network-layer privacy is further enhanced through Dandelion++, ensuring that transactions cannot be traced back to their origin. Secured by a hybrid Proof-of-Work and LLMQ Chainlocks mechanism, Firo defends against 51% attacks while delivering near-instant finality, making it suitable for fast, secure payments. As a standalone Layer 1 blockchain with independent research contributions adopted across the industry, Firo continues to push the boundaries of privacy and decentralization in cryptocurrency.

Whitepaper & Documents