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Who are we?

We are a team of distributed ledger security researchers who provide smart contract auditing services on Ethereum, TRON, TON, Hyperledger Fabric platforms.

In our audits we use formal verification and fuzzing methods for deep and comprehensive analysis of code security. We also actively investigate the security of projects with zero knowledge and related cryptography.

We run CTF competitions on various platforms that cover not only the challenges of cracking smart contracts, zero disclosure projects (ZKP) and cryptography, but also aim to develop the formal verification skills of the community.

Contacts:

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  1. zk-audit-guide zk-audit-guide Public

    Checklist for security audit of ZKP projects by @positivesecurity

    33

  2. tron-audit-guide tron-audit-guide Public

    Checklist for security audit of tron projects by @positivesecurity

    23 4

  3. ton-audit-guide ton-audit-guide Public

    Checklist for security audit of TON projects by @PositiveSecurity

    39 4

  4. PositiveCTF-EVM PositiveCTF-EVM Public

    A set of tasks for cracking implementations of smart-contracts with typical vulnerabilities.

    Solidity 22 16

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