Zooko's triangle is a trilemma of three properties that some people consider desirable for names of participants in a network protocol:
Human-meaningful: Meaningful and memorable (low-entropy) names are provided to the users.
Secure: The amount of damage a malicious entity can inflict on the system should be as low as possible.
Decentralized: Names correctly resolve to their respective entities without the use of a central authority or service.
Overview
Zooko Wilcox-O'Hearn conjectured that no single kind of name can achieve more than two. For example: DNSSec offers a human-meaningful, secure naming scheme, but is not decentralized as it relies on trusted root-servers; .onion addresses and bitcoin addresses are secure and decentralized but not human-meaningful; and I2P uses name translation services which are secure (as they run locally) and provide human-meaningful names - but fail to provide unique entities when used globally in a decentralised network without authorities.
Solutions
Several systems...
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