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ChainCatcher reported that the sovereign digital infrastructure service provider Sign has announced the launch of the "Sign Sovereign Layer 2 Stack." This solution is built on BNB Chain and the opBNB Stack, aiming to help governments rapidly deploy secure and compliant national stablecoins and sovereign blockchain infrastructure within weeks. The Sign Sovereign Layer 2 Stack combines the high performance of opBNB with the liquidity of BNB Chain and features four core characteristics: National asset digitization: supports the tokenization and on-chain management of real-world assets (RWA) such as government bonds, land registration, and natural resources; Optimized stablecoin solution: offers gas-free stablecoin transfers, flexible fee exemption policies, and a scalable distribution system; Native permission control: enables transaction interception and compliance control based on government dynamic sanction lists directly at the sequencer level; DID ecosystem integration: features built-in native proof and decentralized identity (DID) solutions, supporting identity-based application development. Sign stated that this architecture allows governments to retain sovereign control over transaction processing while leveraging the ecosystem liquidity of BNB Chain, aiming to make BNB Chain the preferred settlement layer for global sovereign infrastructure and stablecoins.

On November 21, according to the latest data from CoinWarz, influenced by fluctuations in the overall network hashrate and a slight rebound in coin prices, Zcash (ZEC) daily mining revenue has seen a moderate increase. Currently, the average daily output revenue has slightly improved compared to the previous day, and miner sentiment has stabilized in the short term. At present, the ZEC network mining difficulty stands at 154.26M, approaching its historical high.