Golden Finance reported that LayerZero posted on the X platform that USDtb has been launched on Ethereum, Arbitrum, Solana and Base and is supported by LayerZero. Previously, Ethena Labs announced the launch of USDtb, a new stablecoin product supported by BlackRock BUIDL. USDtb shares the same characteristics as existing fiat stablecoins such as USDC or USDT, being backed at a 1:1 ratio using reserves of cash or cash equivalents.