To strengthen the management and control of Internet number resources such as IP addresses and autonomous system numbers (ASNs), the Internet engineering task force (IETF) proposes resource public key infrastructure (RPKI). In recent years, it has effectively solved the problems of route hijacking and path tampering and plays a crucial role in ensuring the stable operation of inter-domain routing. However, the security problems in the RPKI management mode are gradually highlighted, such as single point of failure, abnormal resource allocation, and verification failures caused by the poor synchronization of certificate revocation data. To tackle these problems, this study proposes a scheme for managing Internet number resources based on modifiable Blockchain. The experimental results show that the scheme is effective and feasible.