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Titanium | Chain Key Cryptography Overview

Victor Shoup explains Chain Key cryptography, one of the fundamental breakthroughs behind the Internet Computer blockchain, enabling it to have a single public key. This allows any smart device to verify the authenticity of artifacts from the Internet Computer. His overview includes a discussion of threshold ECDSA signing, which enables canister smart contracts to have an ECDSA public key and to sign with regard to it - which is a prerequisite for the Internet Computer's direct integrations with Bitcoin and Ethereum. The Internet Computer's Titanium milestone marks the release of essential DeFi building blocks for dapp developers, including APIs for accessing the IC ledger and for token transactions, sample dapps illustrating the most common DeFi use cases, and a ledger canister that can be used for DeFi development. https://github.com/dfinity/examples