Cross-consensus XCM applications using trustless bridges
summary
Polkadot launches a trustless bridge stack with a low‑level transport layer that verifies blocks and storage proofs and a dApp layer running XCM programs on a dedicated Bridge Hub parachain. Cross‑chain assets use a foreign asset pallet and multilocation identifiers. Example flow uses the reserve_transfer_asset extrinsic to send 30 DOT → 28.5 repDOT on the destination after ~1.5 DOT in fees. Fees are dynamic by weight and hub load, relayers form an incentivized delivery market.
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chapters (6)
- 0:00Blockchain interoperability
- 2:12Trustless bridge architecture
- 3:21Bridge Hub and XCM protocol
- 4:49Transport and DApp layers
- 6:54Asset transfer demonstration
- 13:05Project roadmap and Q&A
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