Beosin has completed audit service of Hydra cross-chain bridge


About Hydra-bridge

Hydra-bridge project implements a cross-chain bridge method through observer voting. The user can send the token to the bridge contract (vault contract) for locking (partial handling fee is required), and the contract will record it; at the same time, the observer of the target chain will obtain the lockup record of the user, and vote on the corresponding bridge contract on the target chain. Once the vote is passed, the vault contract of the target chain will send tokens to the address specified by the user.

Audit results

After auditing, 1 Low-risk and 2 Info items were identified in the hydra-bridge project. No critical, high, or medium issues were found during the auditing process. The final audit results are available in the audit report. Enter 202203181529 and 202203181548 to view the report at 


Beosin has focused on the core security issues such as contract permission control, cross-chain signature mechanism, signature data replay and validator control during the audit process. The auditing workflow is mainly as follows:

  • Conduct preliminary source code review;
  • Use Beosin’s self-developed formal verification engine to conduct an in-depth detection of the contract codes in all aspects;
  • Practical deployment and validation via sandbox simulation;
  • Manual line-by-line code review by security experts;
  • Complete the final audit report.

About Beosin

Beosin is a leading global blockchain security brand co-founded by several professors from world-renowned universities. The team consists of 100+ security experts, including 40+ PhDs and postdocs. The core team members have accumulated over 20 years of experience in formal verification technology, cybersecurity, artificial intelligence, and big data mining technology.

Beosin product series include smart contract audit service, blockchain platform audit service, smart contract detection product, and ‘Eagle Eye’ product. Through security audits of more than 2,000 smart contracts and 50+ public blockchains worldwide, Beosin has successfully protected nearly $10 billion of assets and has been fully recognized by global partners.

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