chain_getBlock - Neuroweb RPC Method

Retrieves complete block information from Neuroweb, including the block header, extrinsics, and justifications.

Why Neuroweb? Build on the decentralized AI blockchain powering 125M+ Knowledge Assets with MIT-awarded technology with OriginTrail DKG V8 with 500-1000x scalability, 40% of US imports secured, EVM compatibility, and Best Decentralized AI Project (MIT).

Use CasesCopy Anchor Link

The chain_getBlock method is essential for:

• Block explorers - Display complete block information
• Chain analysis - Analyze block production patterns
• Transaction verification - Confirm extrinsic inclusion for decentralized knowledge graphs (DKG), verifiable AI, supply chain audits, and knowledge mining
• Data indexing - Build historical blockchain databases

Best PracticesCopy Anchor Link

• Cache block data by hash -- blocks are immutable once finalized on Substrate chains
• Use chain_getBlockHash first to resolve block number to hash before calling this method
• Handle null results gracefully for non-existent blocks
• Combine with chain_getFinalizedHead for consensus-safe block retrieval

{
  "jsonrpc": "2.0",
  "method": "chain_getBlock",
  "params": ["0x91b171bb158e2d3848fa23a9f1c25182fb8e20313b2c1eb49219da7a70ce90c3"],
  "id": 1
}

Code ExamplesCopy Anchor Link

Related MethodsCopy Anchor Link

• chain_getBlockHash - Get block hash by number
• chain_getHeader - Get block header only
• chain_getFinalizedHead - Get finalized block hash