Xiezhi: Toward Succinct Proofs of Solvency

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A proof of solvency (or proof of reserves) is a zero-knowledge proof produced by a centralized cryptocurrency exchange to demonstrate that it holds enough cryptocurrency to cover all customer balances, while revealing nothing beyond solvency itself. A key challenge in building practical end-to-end proofs of solvency is the cryptographic mismatch between asset keys and modern succinct non-interactive arguments of knowledge (SNARKs): many deployed account-based cryptocurrency systems use secp256k1