Sirius ($SIRS) is a liquidity pair-based token on the Tezos blockchain. It simplifies participation in Liquidity Baking, a decentralized automated market-making pool between tez and tzBTC, by allowing users to purchase SIRS rather than complete a multi-step liquidity deposit transaction. SIRS holders represent a portion of the liquidity pool and may earn rewards in tez, subject to the risk of impermanent loss.