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The concept involves using cryptographic proofs to establish a secure connection between highly accurate and readily available data Application Programming Interfaces (APIs) and any smart contract within a blockchain ecosystem.

This process ensures that the data fetched from external sources is not only trustworthy and reliable but also verifiable through cryptographic means. By implementing cryptographic proofs, the smart contract can confidently interact with external data APIs, enhancing the integrity and security of data integration within blockchain-based applications.