📘
Supported on Klaytn (mainnet) only.

Parameters

Request

Type	Description
32-byte DATA	Hash of a block.
Boolean	If `true` it returns the full transaction objects, if `false` only the hashes of the transactions.

Result

Object - A block object, or error when no block was found:

Name	Type	Description
number	QUANTITY	The block number. `null` when it is pending block.
hash	32-byte DATA	Hash of the block. `null` when it is pending block.
parentHash	32-byte DATA	Hash of the parent block.
logsBloom	256-byte DATA	The bloom filter for the logs of the block. `null` when it is pending block.
transactionsRoot	32-byte DATA	The root of the transaction trie of the block.
stateRoot	32-byte DATA	The root of the final state trie of the block.
receiptsRoot	32-byte DATA	The root of the receipts trie of the block.
reward	20-byte DATA	The address of the beneficiary to whom the block rewards were given.
blockScore	QUANTITY	Former difficulty. Always 1 in the BFT consensus engine
totalBlockScore	QUANTITY	Integer of the total blockScore of the chain until this block.
extraData	DATA	The "extra data" field of this block.
size	QUANTITY	Integer the size of this block in bytes.
gasUsed	QUANTITY	The total used gas by all transactions in this block.
timestamp	QUANTITY	The Unix timestamp for when the block was collated.
timestampFoS	QUANTITY	The fraction of a second of the timestamp for when the block was collated.
transactions	Array	Array of transaction objects, or 32-byte transaction hashes depending on the last given parameter.
governanceData	DATA	RLP encoded governance configuration
voteData	DATA	RLP encoded governance vote of the proposer
baseFeePerGas	QUANTITY	The base fee per gas. It has a meaningful value when EthTxTypeCompatible and Magma hardforks are activated.

API Endpoint

The format of a Klaytn API endpoint is
https://open-platform.nodereal.io/{{apiKey}}/klaytn/

Here is an example:
https://open-platform.nodereal.io/4c0a1c23661a4e26bcbcwed461e34ea9/klaytn/

Example

// Request
curl https://open-platform.nodereal.io/{{apiKey}}/klaytn/ \
  -X POST \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc":"2.0","method":"klay_getBlockByHash","params":["0xb8deae63002d2b6aa33247c8ef545383ee0fd2282ac9b49dbbb74114389ddb5c", true],"id":1}' 

// Result
{
  "jsonrpc":"2.0",
  "id":1,
  "result":{
    "baseFeePerGas":"0x0",
    "blockscore":"0x1",
    "extraData":"0xda83010800846b6c617989676f312e31362e31338664617277696e0000000000f89ed5949712f943b296758aaae79944ec975884188d3a96b841ddfdf7e2cb0a93538f757f87f23a93ee35df703c781c6f15e31e4978ecdfb3501fc00924372b9a01df2bc452f2a924c242d83580183d131c47e49a25b78f625201f843b841b9b6034d5a8c5f5b057274cda4f427614cd1f448ee781f4c4322861d1361d09d47d6030f2b69a26cb426db984f54e71f8c112fbf882930ccd715d595e8d8307500",
    "gasUsed":"0x0",
    "governanceData":"0x",
    "hash":"0xe882d7a16f38126dc0c507f990b3fe18fa2d3a380002538581327abe96ca6edc",
    "logsBloom":"0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
    "number":"0x1e67",
    "parentHash":"0x28b1c054346c3bd083741c757a750dcabf94b6d50c7f87158753544e96e73550",
    "receiptsRoot":"0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
    "reward":"0x4b2c736fd05c2e2da3ccbd001a395a444f16a861",
    "size":"0x272",
    "stateRoot":"0xdf9885621c9e6e75912ca94d6987bcb1b54fef0e4a99cbec5e68f1ffc7468a78",
    "timestamp":"0x62130beb",
    "timestampFoS":"0x0",
    "totalBlockScore":"0x1e68",
    "transactions":[],
    "transactionsRoot":"0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470",
    "voteData":"0x"
  }
}