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Polkadot Cross-Chain Bridge

Polkadot Cross-Chain Bridge enables asset and data transfer between Polkadot's parent chain and parachains.

bridge TVL


Trustlessness by LI.FI


Very High


Natively Verified

Security Assumptions

• Relies on the Relay Chain’s (Polkadot’s parent chain) shared security model and the target Parachain's validators.

• There needs to be at least one honest collator (full nodes of Parachains and the Relay Chain) for sending/receiving messages between Parachains. It is theoretically possible for collators to censor messages.

Bug bounties by immunefi.com

This bridge has no bug bounty

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