1. Rosenblatt, B., Trippe, B. and Mooney, S. (2002) Digital Rights Management. M&T Books, New York.
2. Copyright Protection Center of China. https://www.ccopyright.com.cn
3. MONEGRAPH. https://monegraph.com
4. Non-Fungible Tokens: Blockchains, Scarcity, and Value
5. Mediachain Labs (2018) Mediachain Attribution Engine: Find Great Images and Reward Creators. http://www.mediachain.io/