[Hydration Launches Over-Collateralized Stablecoin HOLLAR] September 24 news: The largest DeFi protocol by total value locked in the Polkadot ecosystem, Hydration, officially launched its native stablecoin HOLLAR on the 22nd. HOLLAR is a decentralized, over-collateralized stablecoin pegged to the US dollar, with reserve assets including mainstream cryptocurrencies such as DOT, ETH, and BTC.