Datamine Network Completes Hardhat v3 Migration While Defending ERC777 Token Standard

🔧 ERC777 Survival Story

By Datamine
Dec 1, 2025, 2:18 PM
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Datamine Network successfully migrated their smart contract testing suite to Hardhat v3, requiring upgrades to Node.​js 22, ESM modules, and ESLint v9 flat config.​

Despite industry abandonment, they're defending ERC777 over ERC20 for its superior user experience:

  • Single-transaction interactions via hooks (tokensToSend/tokensReceived)
  • No approve-then-transfer friction - users send tokens directly to contracts
  • Powers their Lockquidity mechanism where users lock DAM tokens to mint FLUX in one action

Key challenges solved:

  • Built custom Hardhat plugin for ERC1820 Registry deployment
  • Implemented rigorous re-entrancy attack testing to prove security
  • Used proper mutexes and checks-effects-interactions patterns

Why ERC777 was abandoned: OpenZeppelin removed support due to complexity and re-entrancy risks.​ However, Datamine argues the industry gave up too quickly on a powerful standard.​

The migration resulted in a faster, cleaner, future-proof codebase while maintaining advanced token functionality that ERC20 cannot match.​

Learn more about Datamine Network

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Read more about Datamine

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DeFi Project Tackles 5 Years of Technical Debt Using AI Assistance

A DeFi project successfully migrated 89 unit tests to Hardhat v3 and addressed years of smart contract technical debt using AI assistance during recent market volatility. **Key developments:** - Completed major technical upgrade while ETH dropped 30% - AI tools helped accelerate development process significantly - Migrated entire test suite to new framework **Technical focus:** - Doubling down on ERC777 token standard for $FLUX and $LOCK - ERC777 enables single-transaction hooks unavailable in standard ERC20 - Allows for immutable decentralization with zero admin keys **Project stability:** - Maintains over $100,000 in ETH-backed liquidity - Focus on long-term building despite market conditions - [Technical update video](https://youtu.be/bTmzBa9iNNw) available The project emphasizes building for the decade rather than short-term market movements.

DeFi