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zCloak Network

zCloak Network

zCloak Network is a privacy-focused computing platform based on Polkadot. It uses a novel zk-STARK virtual machine for general purpose computations.


zCloak Network is a privacy-preserving computing platform. It enables a new computation paradigm where people can do computation/analysis of their data in client device, not in centralized servers. zCloak Network combines the latest progress in zero-knowledge cryptography and verifiable credentials to ensure both the computation process and the user data are trustworthy.

With zCloak, users can prove their identity has certain attributes or they satisfy certain requirements without showing any private data. The user proofs are made available in major public blockchains by zCloak oracle service. Third-party Dapps can leverage this information to provide personalized service to their users.

Self-Sovereign Data

Regain the sovereign control of your own data. 3rd parties cannot misuse your data if you never share them.

Self-Proving Computation

Run computation/analysis on your data in your own device, not in centralized servers. Use of ZKP to prove the integrity of your computation. Share only the results, not your personal data.

Zero-Knowledge Proof Virtual Machine

Zero-Knowledge Proof VM for general purpose computations. Automatic STARK proof generation/verification for customized computation. No need to hand-write your ZKP circuit anymore.

Zero-Knowledge Proof as a Service

Provide ZKP as a Service for blockchain data privacy applications. Usable for parachains in Polkadot/Kusama and Dapps in major public blockchains including Ethereum, Polygon, BSC, Solana, etc.


June 17, 2022
zCloak Network raises a $5,800,000 series A round from Bixin Ventures, Ceras Ventures, Coinbase Ventures, Digital Finance Group, Harmony, Hash Global, Jsquare, Jump Capital, KuCoin Ventures, Mask Network, Matrixport, Primeblock Ventures, Sanctor Capital, Signum Capital, SkyVision Capital and Vector Capital.
April 10, 2021
zCloak Network raises a $1,300,000 seed round from Hypersphere Ventures.

Funding Rounds


Further Resources


GitHub - zCloak-Network/zcloak-node


Seed Round - zCloak Network - 2021-04-10 - Crunchbase Funding Round Profile



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