Matrixdock, the real-world asset tokenization platform under BIT, formerly Matrixport, has launched its tokenized gold XAUm on Arc, the Layer-1 blockchain built by Circle. XAUm is Arc’s first tokenized gold asset. Eligible redemptions can receive USDC on the same day after meeting applicable terms, requirements and submission of required transaction documents, while XAUm/USDC liquidity is available through Uniswap. Each XAUm represents one troy ounce of 99.99% pure physical gold sourced from LBMA Good Delivery refineries and held in allocated form at professional vaults operated by Brink's and Malca-Amit in Hong Kong and Singapore. Matrixdock provides allocation records, monthly reserve reports and on-chain Proof of Reserves, with independent physical audits by Bureau Veritas. The launch links physical gold reserves with on-chain dollar liquidity and creates a foundation for trading, lending and collateral applications. The company said the initiative forms part of its Reserve Layer strategy, which also includes Matrixdock Silver, or XAGm. ECB data cited by the company shows gold accounted for 27% of global official reserves at the end of 2025.