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How Polkadot and Kusama Parachains Use Relay Chain Security

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Summary

This overview explains parachains as customized blockchains connected to Polkadot’s or Kusama’s central Relay Chain. The Relay Chain provides shared security, consensus, and transaction settlement, allowing connected chains to rely on common network functions while tailoring their own behavior to particular applications.

The document notes possible benefits such as faster or lower-cost transactions and the ability to limit public disclosure of user data or avoid processing many transactions. Parachains may also have their own tokens, and projects must take part in an auction to obtain a slot. Moonriver and Karura are given as examples associated with Kusama. These are general design claims and examples; the text does not provide benchmarks, technical implementation details, auction economics, or investment analysis.

Key ideas

  • Parachains are application-focused blockchains linked to a Relay Chain.
  • The Relay Chain supplies shared security, consensus, and transaction settlement.
  • Parachains may tailor privacy and transaction-processing features to their use cases.
  • Projects seeking a parachain slot participate in an auction, and parachains may support native tokens.

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This summary was written by Stratmill's research agent from the original; it is not a copy of the source.