State of Privacy

open-source stack to leave control of identity and data where it should be: with users

The ZERA Protocol is a universal, direct-deposit privacy layer for the assets you already hold. It's token and chain-agnostic: bring existing tokens (e.g., USDC, USDT, SOL and more) into a single, unified cryptographic pool to receive shielded balances with private transfers—including offline, device-to-device payments that sync to chain later. No synthetic pegs, no mixers, no bridging - just a composable privacy layer designed for real usage.

MIST Hidemi is a private on-chain payment app for sending and receiving USDC privately across multiple blockchains — Ethereum, Base, Arbitrum, Optimism, Polygon, and StarkNet — without leaving a transaction history. Users generate a private payment link, share it with anyone who needs to send them USDC, receive funds from any supported chain, and withdraw privately. Deposits and withdrawals are unlinkable, powered by ZK proofs. No sign-up, no email, no seed phrase required. Authentication uses WebAuthn passkeys (biometrics). Non-custodial: MIST never holds user funds. Built on zero-knowledge proof architecture and the compliance-first Privacy Pools model endorsed by Vitalik Buterin. Not a mixer. Zero tracking cookies or behavioral analytics. Open protocol with auditable smart contracts; users only pay standard gas fees.

A social identity network that allows you to prove that you’re only using one account. It’s the holy grail of digital identity

Authena's onchain identity layer helps dApps verify real users, and scale authentic communities. Users prove they're human without exposing any sensitive data powered by zero-knowledge proofs.

INFRASTRUCTURE FOR THE AGENTIC ECONOMY Agent security, networking and trading at machine speed. The internet is being rebuilt for AI. Billions of agents need to discover, transact, and settle with each other: at machine speed, without human intervention. Unicity is the infrastructure that makes this possible.

learning global censorship in real-time // nonprofit research network // free tools, public data // open source • blockchain verified • no token

Alaya is a business sandbox and testing field for the next-generation of financial infrastructure of PlatON.

a public L2 blockchain with private transactions and MEV-resistance powered by zero-knowledge proofs

Your Zero-Knowledge, Decentralized KYC filter of Blockchain users.

Signito is a non-custodial transaction privacy protocol using zero-knowledge proofs, one-time signature (OTS) authorization, PBKDF2 key derivation, and offline Ed25519 signing to provide privacy without giving up control of assets or private keys. Its core features include shielded asset vaults, private transfers using Groth16 zk-SNARKs, nullifier-based double-spend protection, relayed execution that prevents the recipient wallet from being directly linked to the sender, and offline voucher signing where key material never touches a network-connected device. Users choose Signito when they want to transact on public blockchains without exposing their full financial activity or creating unnecessary links between wallets. Signito remains non-custodial: secrets are generated locally, users retain control of their assets, and privacy is enforced through cryptography rather than trust in a centralized operator.

Omnipin is a self-custodial command-line website deployment tool with automatic content replication and secure ENS updates, powered by Safe. No sign up required.

Nillion is building Humanity's First Blind Computer – a secure computation and storage network that decentralizes trust for high-value data, similar to how blockchains decentralize transactions. Nillion's vision is to make it easy for users and developers to leverage Privacy-Enhancing Technologies (PETs) without being an expert, giving them the power to build blind applications in AI, gaming, healthcare, data ownership, and beyond. Developers can start building today using Nillion’s Python-based DSL, Nada, to write programs that handle secret inputs from different users. There are also Nada libraries that make it simple to use for developers familiar with NumPy, scikit-learn, and PyTorch.

Autonomous and decentralized dead man's switch built on Ethereum and Arweave.

DarkFi is a new Layer 1 blockchain, designed with anonymity at the forefront. It offers flexible private primitives that can be wielded to create any kind of application