kaia_getBlockByNumber

The eth_getBlockByNumber method returns information about a block by block number on the Kaia network. This method retrieves detailed block data including transactions, gas used, timestamp, and other metadata.

You can choose to receive full transaction objects or just transaction hashes, making it flexible for different use cases from block explorers to lightweight blockchain monitoring applications. Developers use this to analyze block contents, track blockchain progress, extract transaction data, monitor gas usage patterns, and build blockchain analytics. The method is essential for any application that needs to process blocks sequentially or retrieve historical block information.

Parameters

parameter	type	description
blockParameter	string (required)	Block number in hex format (e.g., '0x10d4f') or one of the string tags: 'latest' for the most recent block, 'earliest' for the genesis block, or 'pending' for pending state/transactions
fullTransactions	boolean (required)	If true, returns full transaction objects with all fields; if false, returns only an array of transaction hashes for better performance

Return Object

The method returns a block object, or null if the block is not found:

field	type	description
number	string	The block number encoded as hexadecimal
hash	string	Hash of the block (32 bytes), null for pending blocks
parentHash	string	Hash of the parent block (32 bytes)
nonce	string	Hash of the generated proof-of-work (8 bytes)
sha3Uncles	string	SHA3 of the uncles data in the block (32 bytes)
logsBloom	string	The bloom filter for the logs of the block (256 bytes)
transactionsRoot	string	The root of the transaction trie of the block (32 bytes)
stateRoot	string	The root of the final state trie of the block (32 bytes)
receiptsRoot	string	The root of the receipts trie of the block (32 bytes)
miner	string	The address of the beneficiary to whom the block rewards were given (20 bytes)
difficulty	string	Integer of the difficulty for this block (hex)
totalDifficulty	string	Integer of the total difficulty of the chain until this block (hex)
extraData	string	The extra data field of this block (max 32 bytes)
size	string	The size of this block in bytes (hex)
gasLimit	string	The maximum gas allowed in this block (hex)
gasUsed	string	The total gas used by all transactions in this block (hex)
timestamp	string	The unix timestamp for when the block was collated (hex)
transactions	array	Array of transaction objects (if fullTransactions=true) or array of transaction hashes (if fullTransactions=false)
uncles	array	Array of uncle hashes (32 bytes each)
baseFeePerGas	string	The base fee per gas for this block (hex)

Request Example

Request

Response Example

Response