Wallets May be hardware, software, or online products and services. They offer safety features and facilitate transactions by interacting with the decentralized Bitcoin network. 将生成的地址，发送到（GET）指定的 url，每生成一条就会发送一次。数据格式为：privatekey=xx&address=yy。这个配置主要便于其它系统的集成 Seed phrase storage: Arguably, one of the most essential aspect of the wallet... http://vanity-address.org