cash out

Problem Statement

Cash Outis a decentralized invoice financing and liquidity unlocking platform built for freelancers and SMEs. It addresses the global issue of delayed B2B invoice payments—over$3 trillionlocked and50,000+ business failuresannually. The platform enables instant payments upon invoice confirmation usingzero-knowledge proofs (ZKPs)powered byvLayer, with all transactions executedsecurely and privately on the Rootstock testnet.🔍 Real-World Problem📉61%of B2B invoices are paid late.🧾 SMEs lack legal and financial resources to enforce timely payments.🔒 On-chain financial transparency is avoided due toprivacy concerns.❌ Cash flow gaps cause50,000+ business failures each year in the US.🚀 The Cash Out SolutionCash Out provides aprivate, verifiable, andtrustlessmechanism for invoice financing.✅ Instant liquidity for suppliers via zk-proofs of invoice confirmation and buyer solvency.🔐 Privacy-preserving financial verification (e.g., Binance/Bybit proof, cross-chain averages).⛓️ Entire lifecycle is on-chain: transparent, tamper-proof, and automated.📊 UsesPythfor reliable price feeds andRootstock Attestation Service (RAS)for claim validation.

Solution

🔨 Technologies Used| Component | Technology | |------------------------|------------------------------------------------| | Blockchain Base | Rootstock Testnet | | Privacy Layer | vLayer (ZK generation & verification) | | Proof Attestation | Rootstock Attestation Service (RAS) | | Oracle | Pyth Network (price conversion) | | Cross-Chain Proofs | Time Travel & Teleport (ZK multi-chain proofs) | | Asset History Proofs | Binance & Bybit portfolios (zk-verified) | | Token Payout | $RIF and $USDC |🧠 Product Workflow👥 User ProfilesClientsandSuppliersregister on-chain via aCreateProfiletransaction.🧾 Invoice LifecycleBusiness issues an invoice and sends a confirmation email.Supplier parses the email and generates azk-proofof the contents.💰 Financial Solvency VerificationZK-proofs of liquidity from:Binance/Bybit exchange historyCross-chain wallet balance (via Teleport + Time Travel ZK modules)✅ Claim VerificationSupplier submits zk-proof to claim payment.Creates anattestationon the Rootstock Attestation Service (RAS).🪙 PayoutFunds released instantly in$RIFor$USDCto supplier’s wallet.🤹 Hacky/Innovative Aspects✉️ZK Email Proofing: Parses Gmail content and turns it into verifiable cryptographic claims.🌐Cross-chain ZK Liquidity Proofs: Aggregates multi-chain balances without revealing wallet info.🧠Proof-of-liquidity without trust: No credit scores, no raw data exposure—just pure cryptographic solvency.