Why Reliable Nodes Are Critical for Scaling Blockchain Rollups

Instanodes Io31 Jul, 2025Technology

The DeFi summer of 2021 brought Ethereum's scaling limitations into sharp focus. As gas fees soared above $100 for simple swaps and users waited hours for transaction confirmations, the blockchain community rallied around a solution: rollups. Fast-forward to today, and platforms like Arbitrum process over 1 million transactions daily while maintaining fees under $0.50. Yet behind these impressive statistics lies a less discussed reality. The success of blockchain rollups relies heavily on the integrity of their supporting node infrastructure. When Polygon zkEVM arrived in March 2023, its initial performance stutters weren't the result of proof generation algorithms or smart contract flaws—there weren't enough nodes to handle peak demand.