chain_getBlock - Polkadot RPC Method
Retrieve block data by hash on Polkadot. Essential for accessing block headers and extrinsics on the heterogeneous multi-chain protocol with $300M+ DeFi TVL and JAM supercomputer upgrade incoming.
Retrieves complete block information from Polkadot, including the block header, extrinsics, and justifications.
Why Polkadot? Build on the heterogeneous multi-chain protocol with $300M+ DeFi TVL and JAM supercomputer upgrade incoming with shared relay chain security, XCM cross-chain messaging, JAM upgrade targeting 1M TPS, and 2.1B DOT supply cap.
Use Cases
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 cross-chain DeFi, parachain deployment, XCM interoperability, and DOT staking (8-10% APY)
- Data indexing - Build historical blockchain databases
Code Examples
Related Methods
chain_getBlockHash- Get block hash by numberchain_getHeader- Get block header onlychain_getFinalizedHead- Get finalized block hash
Polkadot RPC Documentation
Complete JSON-RPC API documentation for Polkadot blockchain integration. Learn how to interact with Polkadot nodes using WebSocket and HTTPS endpoints.
chain_getBlockHash
Get block hash by number on Polkadot. Essential for converting block numbers to hashes, historical queries, and blockchain navigation on the heterogeneous multi-chain protocol with $300M+ DeFi TVL and JAM supercomputer upgrade incoming.