Century United Holdings (01959.HK) has become the first stock to offer on-chain liquidity rewards through a new mechanism called Proof of Stock Liquidity (PoSL). Launched on December 1, 2025, this system allows investors to maintain full shareholder rights while earning liquidity rewards on the blockchain. This innovation introduces a triple-revenue model, combining price appreciation, dividends, and staking rewards. The initiative, developed in collaboration with xBrokers and Ju.com, employs a dual-track architecture of real equity custody and on-chain tokens. It is supported by a 30% dynamic collateral model to enhance capital efficiency. The program plans to expand to over 100 Hong Kong stocks and eventually include U.S. markets, bonds, ETFs, and private placements.