debug_dumpBlock
curl --request POST \
--url https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154 \
--header 'Content-Type: application/json' \
--data '
{
"id": 1,
"jsonrpc": "2.0",
"method": "debug_dumpBlock",
"params": [
"latest"
]
}
'import requests
url = "https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154"
payload = {
"id": 1,
"jsonrpc": "2.0",
"method": "debug_dumpBlock",
"params": ["latest"]
}
headers = {"Content-Type": "application/json"}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({id: 1, jsonrpc: '2.0', method: 'debug_dumpBlock', params: ['latest']})
};
fetch('https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'id' => 1,
'jsonrpc' => '2.0',
'method' => 'debug_dumpBlock',
'params' => [
'latest'
]
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154"
payload := strings.NewReader("{\n \"id\": 1,\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_dumpBlock\",\n \"params\": [\n \"latest\"\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154")
.header("Content-Type", "application/json")
.body("{\n \"id\": 1,\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_dumpBlock\",\n \"params\": [\n \"latest\"\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n \"id\": 1,\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_dumpBlock\",\n \"params\": [\n \"latest\"\n ]\n}"
response = http.request(request)
puts response.read_body{
"jsonrpc": "<string>",
"id": 123,
"result": {}
}Arbitrum node API
debug_dumpBlock | Arbitrum
Arbitrum API method that retrieves the state of all accounts at a given block number. Available on Arbitrum via Chainstack JSON-RPC nodes.
POST
/
66f812de2a6724a75a51f60dd6f2a154
debug_dumpBlock
curl --request POST \
--url https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154 \
--header 'Content-Type: application/json' \
--data '
{
"id": 1,
"jsonrpc": "2.0",
"method": "debug_dumpBlock",
"params": [
"latest"
]
}
'import requests
url = "https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154"
payload = {
"id": 1,
"jsonrpc": "2.0",
"method": "debug_dumpBlock",
"params": ["latest"]
}
headers = {"Content-Type": "application/json"}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({id: 1, jsonrpc: '2.0', method: 'debug_dumpBlock', params: ['latest']})
};
fetch('https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'id' => 1,
'jsonrpc' => '2.0',
'method' => 'debug_dumpBlock',
'params' => [
'latest'
]
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154"
payload := strings.NewReader("{\n \"id\": 1,\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_dumpBlock\",\n \"params\": [\n \"latest\"\n ]\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154")
.header("Content-Type", "application/json")
.body("{\n \"id\": 1,\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_dumpBlock\",\n \"params\": [\n \"latest\"\n ]\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://nd-954-882-037.p2pify.com/66f812de2a6724a75a51f60dd6f2a154")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n \"id\": 1,\n \"jsonrpc\": \"2.0\",\n \"method\": \"debug_dumpBlock\",\n \"params\": [\n \"latest\"\n ]\n}"
response = http.request(request)
puts response.read_body{
"jsonrpc": "<string>",
"id": 123,
"result": {}
}Arbitrum API method that retrieves the state of all accounts at a given block number. This method returns a dump of the state trie, including account balances, nonces, code hashes, and storage. It is primarily used for debugging and state inspection.
Learn how to deploy a node with the debug and trace API methods enabled.
This method is available for post-Nitro blocks only (block 22,207,815 and later). For pre-Nitro blocks, use the
arbtrace_* methods instead.Get your own node endpoint todayStart for free and get your app to production levels immediately. No credit card required.You can sign up with your GitHub, X, Google, or Microsoft account.
Parameters
quantity— the block number in hex format or block tag (latest,earliest,pending,safe,finalized).
Response
result— an object containing the state dump:root— the state root hash of the block.accounts— a map of account addresses to account data:balance— the account balance in Wei.nonce— the account nonce.root— the storage root hash.codeHash— the hash of the account’s contract code.code— the contract bytecode.storage— the account’s storage slots.address— the account address.
This method returns up to 256 accounts per call. For iterating over all accounts, use
debug_accountRange which supports pagination.debug_dumpBlock code examples
const ethers = require('ethers');
const NODE_URL = "YOUR_CHAINSTACK_ENDPOINT";
const provider = new ethers.JsonRpcProvider(NODE_URL);
const debugDumpBlock = async (blockNumber) => {
const result = await provider.send("debug_dumpBlock", [blockNumber]);
console.log(result);
};
debugDumpBlock("latest");
from web3 import Web3
node_url = "YOUR_CHAINSTACK_ENDPOINT"
web3 = Web3(Web3.HTTPProvider(node_url))
result = web3.provider.make_request('debug_dumpBlock', ["latest"])
print(result)
Use case
Thedebug_dumpBlock method is useful for inspecting the state of all accounts at a specific block. Developers can use it to verify account states during debugging, compare state snapshots between blocks, or build tools that analyze the distribution of contract deployments and account balances at a point in time.Body
application/json
Last modified on June 22, 2026
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