PrivacyUSD is a decentralized privacy protocol developed on the Solana blockchain, engineered to provide robust confidentiality for stablecoin transactions. The project’s primary function is to enable users to transact with leading stablecoins, including USDC, USDT, and DAI, without exposing sensitive financial data on the public ledger. It achieves this through a proprietary 7-layer privacy stack that combines multiple cryptographic techniques, such as zero-knowledge proofs, multi-split fragmentation, and batch processing with delays, to deliver a high degree of anonymity and a claimed 0.0001% traceability probability. The protocol’s utility is centered around three core features: Private Deposits, which shield the user’s initial deposit from their public wallet address; Shielded Transfers, which conceal the details of peer-to-peer transactions; and Invisible Swaps, which allow for private trading between different stablecoins within the protocol’s liquidity pool. To balance privacy with regulatory requirements, PrivacyUSD incorporates a “View Key” architecture, granting users the ability to selectively disclose their transaction history to authorized third parties for compliance purposes. This makes the protocol suitable for a wide range of users, from individuals seeking personal financial privacy to institutions requiring confidential payment solutions.