**[StakeStone Announces Brand Upgrade and Whitepaper 2.0, Aiming to Build a Crypto-Native Digital Bank]** Foresight News reports that StakeStone has completed a brand upgrade and released version 2.0 of its whitepaper. According to the whitepaper, in terms of technical architecture, StakeStone 2.0 adopts a combination of technologies such as Account Abstraction (EIP-7702), Gasless payments, and Social Login. For its settlement mechanism, StakeStone 2.0 introduces a "layered settlement" system, constructing differentiated settlement tiers based on the characteristics of various assets and transaction scenarios. This enables a "trade-to-settle, settle-to-confirm" processing model, aiming to provide near real-time processing capabilities for cross-border payments, peer-to-peer transfers, and machine micropayments. In terms of product functionality, the protocol is designed with an on-chain Yield Layer to lower the barriers for users to participate in the global yield network. Additionally, StakeStone plans to build a machine-native payment layer (AI & Machine Payment Layer) for AI applications, IoT devices, and algorithms through the AP2 (Agents-to-Payments Protocol) and x402 protocols, providing independent identities and programmable payment capabilities. Regarding the governance model, users can convert STO tokens into veSTO to participate in protocol governance and gain related benefits.