Editing Esim (section)

== Application 1: Sybil-proof identity management ==

Many distributed systems work best when one entity cannot control more than one identity within the system [sybil-attacks]. For example, a decentralized Reddit works best if there is only one account per person to limit upvote manipulation, and a proof-of-stake blockchain is more secure if it can limit the amount of stake that a single actor can own.

The eSIM PKI is a new tool that can be used to place a cost on creating sock puppet accounts. It costs money to purchase an eSIM capable device, and it costs time to register it. What you end up doing is forming a cryptographic key pair that is bound to an economic cost and real-life identity.

Depending on the operators and manufacturers involved – you might define the weight of an identity and whether to trust it.

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