Petname systems are naming systems that claim to possess all three naming properties of Zooko's triangle - global, secure, and memorable.
Such systems can be used to enhance security, such as preventing phishing attacks.
[2] Unlike traditional identity systems, which focus on the service provider, Petname systems are decentralized and designed to facilitate the needs of the enduser as they interact with multiple services.
[3][4] Though the Petname model was formally described in 2005 by Mark Stiegler, the potential of the system was discovered by several people successively.
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