Online reports that with the global real estate tokenization market expected to reach US$4 trillion in 2035, asset inheritance issues have become a key bottleneck in the development of the industry. The current lack of a standardized on-chain inheritance mechanism may lead to the permanent loss of high-value tokenized assets due to loss of keys or legal ambiguity. Experts suggest building a Decentralized Data Survival Protocol (DeDasP) through the integration of technologies such as smart contracts, NFT fragmentation and biometrics to realize automated asset inheritance. This solution needs to solve the security issue of cross-generational wealth transfer while maintaining the principle of decentralization.