Hinkal Introduces Compliance-Ready Privacy Layer for Institutional DeFi

Stablecoin adoption and regulatory frameworks are advancing together, both dependent on institutional participation. For institutions to move on-chain, two requirements must be met: - **Privacy** - Trading positions, treasury operations, and counterparty relationships require confidentiality that public ledgers cannot provide - **Compliance** - Regulated institutions need sanctions screening, audit trails, and reporting capabilities These aren't competing priorities. Regulators want selective disclosure to appropriate parties at appropriate times, achieved through viewing keys and KYT monitoring. **Compliant privacy** means confidentiality and compliance working simultaneously. A panel discussion in Palo Alto on June 2 will explore this framework, featuring representatives from Merkle Science, Crossmint, Centrifuge, Arca, Wave Digital, and Mento Labs.

**Hinkal is building privacy infrastructure for institutional blockchain adoption.** CEO Jason Li of MPCVault discusses how the protocol's embedded privacy features are transforming enterprise finance. **Key architectural principles:** - Separated protocol into distinct layers with isolated responsibilities - Each layer (verification, records, actions, rules) can be independently audited and upgraded - Externally verifiable and deployed across Ethereum, Solana, and TRON **Recent integrations demonstrate institutional demand:** - Polygon integrated Hinkal for private stablecoin payments in their wallet - TRON deployment enables confidential settlements without exposing balances or payment history - Adopted by enterprise solutions including MPCVault ($8B monthly volumes), Rubic, and Request Network **Compliance features:** - Chainalysis KYT screening prevents high-risk addresses - Selective disclosure via viewing keys maintains auditability The protocol aims to make privacy default across blockchain ecosystems, addressing the primary blocker for institutional clients moving treasury operations on-chain.

**Hinkal Pay** has launched, enabling businesses and consumers to settle transactions with full confidentiality. **Key Features:** - Sender, recipient, and amounts remain private on-chain - Works with existing wallets, chains, and stablecoins - Supports confidential sending, receiving, and payouts - Maintains compliance through Chainalysis screening **How It Works:** Funds move to a confidential balance within Hinkal's smart contract, controlled by the recipient's existing wallet. Recipients can execute private payouts to vendors, employees, or partners, or send to public wallets while keeping the sender private. **Availability:** - Live on Ethereum, Base, Arbitrum, Polygon, Arc, and Optimism - Supports USDT, USDC, DAI, and ETH - All transactions screened before execution; high-risk addresses blocked The service builds on Hinkal's earlier Private Send feature, which enabled private top-ups for non-custodial crypto cards through Ether.fi integration.

**DeFi cards are bridging crypto and real-world spending**, but they expose a privacy gap. [Ether.fi Cash](http://Ether.fi) lets users spend stablecoins while earning 5.6% APY or borrow against yield-bearing assets without selling crypto. **The privacy problem**: All blockchain transactions are public. When you fund a DeFi card from your main wallet, anyone can trace the connection between your spending and investment activities. **Hinkal Wallet offers a solution** - a self-custodial private smart contract wallet that breaks on-chain links: - Deposit funds into Hinkal's shielded pool - Unshield the amount needed for your Ether.fi Cash vault - Transfer completes with no traceable connection to your source wallet This **preserves financial privacy** while maintaining full DeFi functionality. Users can spend, borrow, and transact confidently without exposing their broader portfolio activity. As DeFi integrates deeper into everyday payments, privacy solutions like Hinkal become essential for users who value financial confidentiality in transparent blockchain systems.