Whitepaper (Preface)

End of Public Wallets

What is Hinkal

Hinkal is a privacy-preserving infrastructure layer for Ethereum and EVM-compatible chains that enables institutions to interact with public blockchains without exposing sensitive financial activity. Unlike private blockchains or mixers, Hinkal delivers protocol-level confidentiality for balances, settlement flows, and transaction relationships while preserving public-chain finality.

For enterprises and financial institutions, public ledger transparency is a material liability. Hinkal provides Privacy-as-a-Service (PaaS), allowing users to shield assets and automate confidential trade settlements through a non-custodial architecture. The platform consists of two core components:

• The Hinkal SDK: A developer-first toolkit that allows Payment Service Providers (PSPs), OTC desks, and merchants to embed privacy directly into existing workflows.

• The Hinkal Wallet: A high-performance reference implementation that showcases the full suite of confidential execution and settlement capabilities.

The Future of On-Chain Confidentiality

Hinkal represents the evolution of privacy from a consumer-focused "incognito mode" to a critical infrastructure layer for the global digital economy. By decoupling privacy from the interface, Hinkal enables institutions to eliminate the risks of public-chain transparency while retaining the benefits of decentralized settlement.