lynnsander
@lynnsander
Cross-chain interoperability enables different blockchains to communicate and share data or assets. Key technical implementations include: Bridges: Smart contracts or protocols (e.g., Wrapped Bitcoin) lock assets on one chain and mint equivalents on another, ensuring trust via validators or multi-signature schemes. Atomic Swaps: Cryptographic hash time-locked contracts (HTLCs) allow trustless asset exchanges across chains, requiring both parties to fulfill conditions within a deadline. Sidechains/Relays: Sidechains like Polygon or relays like Polkadot’s parachains use pegging mechanisms or shared security to transfer data/assets. Oracles: Systems like Chainlink provide external data to facilitate cross-chain interactions. Inter-Blockchain Communication (IBC): Protocols like Cosmos IBC standardize messaging for state and asset transfers. Challenges include security risks (e.g., bridge hacks), latency, and consensus differences.
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