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IACR Cryptology ePrint Archive
Since the inception of Bitcoin, a plethora of distributed ledgers differing in design and purpose has been created. While by design, blockchains provide no means to securely communicate with external systems, numerous attempts towards trustless cross-chain communication have been proposed over the years. Today, cross-chain communication (CCC) plays a fundamental role in cryptocurrency exchanges, scalability efforts via sharding, extension of existing systems through sidechains, anddblp:journals/iacr/ZamyatinAZKMKK19 fatcat:sz5jpi67wvgrbeger74mg6mv4a