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debug_getBadBlocks RPC Method

Returns a list of the last bad blocks that the client has seen on the network.

Updated on
Mar 27, 2026

Parameters

This method does not accept any parameters

Returns

hash
string

The hash of the transaction

block
object

A block object, or null when no block was found

baseFeePerGas
string

The integer of the difficulty for this block encoded as hexadecimal

difficulty
string

The integer of the difficulty for this block encoded as hexadecimal

extraData
string

The extra data field of this block

gasLimit
string

The maximum gas allowed in this block encoded as hexadecimal

gasUsed
string

The total used gas by all transactions in this block encoded as hexadecimal

hash
string

The block hash of the requested block. Null if pending

logsBloom
string

The bloom filter for the logs of the block. Null if pending

miner
string

The address of the beneficiary to whom the mining rewards were given

mixHash
string

A string of a 256-bit hash encoded as hexadecimal

nonce
string

The hash of the generated proof-of-work. Null if pending

number
string

The block number of the requested block encoded as hexadecimal. Null if pending

parentHash
string

The hash of the parent block

receiptsRoot
string

The root of the receipts trie of the block

sha3Uncles
string

The SHA3 of the uncles data in the block

size
string

The size of this block in bytes as an Integer value encoded as hexadecimal

stateRoot
string

The root of the final state trie of the block

timestamp
string

The unix timestamp for when the block was collated

transactions
array

An array of transaction objects with the following fields:

transactionsRoot
string

The root of the transaction trie of the block

uncles
array

An array of uncle hashes

rlp
string

The RLP encoded header

Request
Response
1
{
2
"jsonrpc": "2.0",
3
"id": 1,
4
"result": []
5
}
1
{
2
"jsonrpc": "2.0",
3
"id": 1,
4
"result": []
5
}
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