an Ethereum bridge
summary
Snowbridge is a trustless, decentralized, general-purpose bridge implemented on BridgeHub that links Polkadot parachains and Ethereum via an on-chain Gateway contract and permissionless agents per parachain for simple contract authentication. Consensus is verified on Ethereum by Beefy light clients that check a random subset of ~20–40 validator signatures, and Ethereum sync committees are handled similarly; fees are paid in the source chain’s native token and settled periodically via reserves. An ERC-20 token bridge is functional between Rococo and Görli, audits are in progress, and deployment awaits Beefy activation on Kusama/Polkadot.
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chapters (14)
- 0:00Intro
- 0:40Background
- 1:25History
- 4:00Definition
- 4:55Architecture
- 6:25Agents
- 7:35Fees and Incentives
- 9:20Fees
- 10:50Governance
- 13:30BNB activation
- 14:00Sync committee
- 15:10Security
- 16:30ERC20 tokens
- 18:10ERC20 transfers
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