[[ZKP/ZKP Base Layer/ZKP Blockchain/Performance/Storage Layer|The Storage Layer]] is engineered to optimize both the retrieval of data and the verification of its integrity within a decentralized context: **Retrieval Performance:** Data retrieval leverages concurrent sourcing from multiple nodes coordinated through Substrate's off-chain workers. [[ZKP/ZKP Base Layer/ZKP Blockchain/Performance/Storage Layer|While theoretical aggregate]] throughput could reach 100MB/s (10 nodes at 10MB/s each), our testnet measurements show more realistic performance of 30-50MB/s under typical network conditions with geographic distribution. Latency varies significantly (200ms-2s) based on content popularity, network congestion, and peer availability. For a 1GB dataset under average conditions, this translates to retrieval times of 20-30 seconds, accounting for network latencies, content discovery overhead, and connection establishment through off-chain worker networking protocols. **Integrity Verification:** [[ZKP/ZKP Base Layer/Core Concepts/Zero-Knowledge Proofs|Zero-Knowledge Proofs (ZKPs)]] enable users to ascertain the integrity of retrieved data without necessitating its disclosure. [[ZKP/ZKP Base Layer/ZKP Blockchain/Performance/Application Layer|A typical ZKP proof]], such as one generated using the Groth16 protocol [9, 30], can be verified in 2 milliseconds through either EVM pre-compiled contracts or native [[Substrate]] verification pallets, providing 128-bit security. This ensures that data authenticity is maintained in a trustless environment through Substrate's unified runtime execution, a prerequisite for secure decentralized operations. See also: [[ZKP/ZKP Base Layer/ZKP Blockchain/Storage Layer/Network Security Under Load/Network Security of Storage Layer|Network Security of Storage Layer]]