The paper discusses the possibility of using Bitcoin to enhance the security of proof-of-stake blockchains. The Babylon network, built using the Cosmos SDK, explores using Bitcoin as a non-native asset to back a chain. The paper proposes a cryptographic scheme that reveals a validator’s private key when they commit an offense, allowing for slashing of the Bitcoin asset. However, this approach carries risks. The Babylon team is seeking community feedback and plans to launch a mainnet next year.

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