{
  "id": 17754,
  "title": "Efficient design of blockchain-based electronic health record systems with federated learning, off-chain storage, and zk-rollup parallelism for minimizing transaction costs",
  "url": "https://urgent.news/2026/08/01/efficient-design-of-blockchain-based-electronic-health-record-systems",
  "topic": "ai",
  "section": "AI",
  "published": "2026-08-01T00:00:00.000Z",
  "source": {
    "name": "Scientific Reports",
    "slug": "scientific-reports",
    "url": "https://www.nature.com/articles/s41598-026-62785-9"
  },
  "original_language": "en",
  "account": "The paper titled \"Efficient design of blockchain-based electronic health record systems with federated learning, off-chain storage, and zk-rollup parallelism for minimizing transaction costs\" introduces a novel model called FZRP (Federated-ZK-Rollup Pipeline). This model aims to address the impracticality of full on-chain storage for EHRs on blockchain due to high storage costs and limited throughput.\n\nThe proposed FZRP model combines Federated Learning, off-chain storage using IPFS, zk-rollup batching with adaptive batch sizing, and parallel proof pipelines. These techniques work together to significantly reduce the per-record transaction cost while ensuring auditability and privacy of the EHRs. The model's effectiveness is demonstrated through a synthetic dataset of 50,000 EHRs, showing orders-of-magnitude cost savings under realistic assumptions.\n\nThe authors provide a formal cost model, analyze latency and security aspects, and conduct sensitivity studies to validate the model's performance. Experimental results reveal that adaptive batching can reduce per-record transaction costs to as low as $0.000024, achieving over 99.999% cost reduction compared to full on-chain storage. This approach strikes a balance between scalability, privacy, and cost-effectiveness, making it a promising solution for blockchain-based EHR systems.",
  "summary": "Scientific Reports, Published online: 01 August 2026; doi:10.1038/s41598-026-62785-9 Efficient design of blockchain-based electronic health record systems with federated learning, off-chain storage, and zk-rollup parallelism for minimizing transaction costs",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}