Getting Started with the Polygon LxLy Bridge
summary
Polygon’s LxLy Bridge is a native trustless bridge that moves tokens and cross‑chain messages by depositing into an L1 bridge contract, adding a deposit leaf to a Merkle tree, then having a sequencer sync the tree to the ZK EVM where the Merkle proof and global exit root enable on‑chain verification; claiming requires submitting that proof to claimAsset. Typical roundtrip currently takes ~40 minutes. The repo includes a ping‑pong code example with ping (send) and claim (pong) scripts, an NFT bridge factory, and contract interfaces showing the exact call/verify flow.
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chapters (8)
- 0:00Welcome
- 1:27What is Polygon zkEVM
- 6:22How zkEVM chains work
- 11:20Polygon 2.0 vision
- 13:03What is a blockchain bridge
- 16:35LxLy Bridge operation
- 21:17PingPong code walkthrough
- 28:03Q&A
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