Sybil Resistance

Sybil resistance is a critical component of the Local Protocol's security framework. It aims to prevent malicious users from creating multiple fake identities to manipulate the transaction graph. By leveraging graph-based metrics like eigenvector centrality and PageRank, the protocol can identify and limit the influence of isolated clusters of nodes, which are common in Sybil attacks.

The protocol also uses probabilistic rewards and collateral mechanisms to discourage fraudulent behavior, making Sybil attacks costly and difficult to execute.

Key Concepts#

• Graph-Based Detection: Identifies Sybil nodes based on lack of connectivity with real users.
• Costly Manipulation: Collateral and adaptive incentives increase the cost of Sybil attacks.

Next Steps#

Now that we have introduced the basic concepts, we will introduce the architecture underlying the Local Protocol Blockchain.