PAP, named from Privacy and (and) Protection, is a set of decentralized electronic promissory note protocols that do not require third-party trust based "indefinite bearer electronic promissory notes". "Zero-Knowledge Succinct Non-Interactive Argument of Knowledge" (zk-SNARK) and mixed data structure, while guaranteeing the anonymity of the promissory note holder, the privacy of message transmission, and the privacy of data structure, even big data trackers cannot Trace to the transaction.

The PAP platform currency is issued based on the Ethereum ERC-20 standard, and its full name is Privacy And Protection Cash System Token. The Chinese name is "Mi An Coin".

PAP has the following functions:
1. Community governance function
2. Community improvement function
3. Revenue sharing function