The Vision of Interoperability - Parachains, Bridges & Oracles
summary
Polkadot connects heterogeneous parachains via XCMP and a shared security pool, with Substrate and the cumulus library used to build them; parachains are near launch. Parity’s bridges team is building generic, trustless, non‑custodial bridges using on‑chain light clients plus an optimization called Beefy to reduce Ethereum gas costs. Substrate supports on‑chain oracle pallets (Chainlink uses off‑chain workers for Polkadot). Current focuses: Polkadot↔Kusama bridge, Ethereum and Bitcoin bridges (Snowfork, Interlay collaborations); work is ongoing, not yet production.
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