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A Privacy Protocol Built On Zero-Knowledge Proof Schemes.
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Firo (XZC) is one of the earliest privacy coins, created by Poramin Insom and his team. It launched in September 2016 (under the name Zcoin, with the token ticker being XZC).
At the beginning, Firo was the first cryptocurrency implementing the Zerocoin protocol designed by Matthew Green in 2013.
Firo is based on Bitcoin's source-code, with a GPU-friendly ASIC-resistant algorithm (Merkle Tree Function since 2018). Its total maximum supply is 21.4 million and block rewards are halved every four years.
Firo is set to activate its Lelantus privacy protocol on block 336,888 (approximately January 12 2021). which will increase the anonymity set and hide change amounts while protecting transaction privacy without requiring a trusted setup.