[Sign launches sovereign Layer 2 solution based on BNB Chain, supporting stablecoins and RWA on-chain] The Sign team has released the sovereign Layer 2 architecture 'SIGN Stack,' built on BNB Chain and opBNB, designed specifically for nations to deploy digital infrastructure and compliant stablecoins. This solution features customizable Sequencer permissions, a DID identity system, gas-free stablecoin transfers, and the ability to bring real-world assets (RWA) on-chain. The goal is to establish BNB Chain as the settlement layer for global sovereign blockchain infrastructure.