Path Parameters

block_id

string

REQUIRED

The state identifier. It can be a slot number, blockRoot (encoded in hexadecimal format) or tags (Supported tags include - head (canonical head in node's view), genesis, finalized or justified)

Returns

execution_optimistic

boolean

It's true if the response references an unverified execution payload. The optimistic information may be invalidated at a later time. If the field is not present, assume the false value

data

object

The object with the following fields:

root

string

The hashTreeRoot of BeaconBlock/BeaconBlockHeader

Request

1
curl -X GET "https://docs-demo.quiknode.pro/eth/v1/beacon/blocks/head/root" \
2
  -H "Content-Type: application/json" \
3
  -H "Accept: application/json"

1
curl -X GET "https://docs-demo.quiknode.pro/eth/v1/beacon/blocks/head/root" \
2
  -H "Content-Type: application/json" \
3
  -H "Accept: application/json"

1
async function main() {
2
    const response = await fetch('https://docs-demo.quiknode.pro/eth/v1/beacon/blocks/head/root', {
3
        method: 'GET',
4
        headers: {'Content-Type': 'application/json', 'Accept': 'application/json'}
5
    })
6
    const data = await response.json()
7
    console.log(data)
8
}
9

10
main()

1
async function main() {
2
    const response = await fetch('https://docs-demo.quiknode.pro/eth/v1/beacon/blocks/head/root', {
3
        method: 'GET',
4
        headers: {'Content-Type': 'application/json', 'Accept': 'application/json'}
5
    })
6
    const data = await response.json()
7
    console.log(data)
8
}
9

10
main()

1
import requests
2
import json
3

4
url = "https://docs-demo.quiknode.pro/eth/v1/beacon/blocks/head/root"
5

6
headers = {
7
  'Content-Type': 'application/json',
8
  'Accept': 'application/json'
9
}
10

11
response = requests.request("GET", url, headers=headers)
12

13
print(response.text)

1
import requests
2
import json
3

4
url = "https://docs-demo.quiknode.pro/eth/v1/beacon/blocks/head/root"
5

6
headers = {
7
  'Content-Type': 'application/json',
8
  'Accept': 'application/json'
9
}
10

11
response = requests.request("GET", url, headers=headers)
12

13
print(response.text)

1
require "uri"
2
require "json"
3
require "net/http"
4

5
uri = URI("https://docs-demo.quiknode.pro/eth/v1/beacon/blocks/head/root")
6

7
request = Net::HTTP::Get.new(uri)
8
request["Content-Type"] = "application/json"
9
request["Accept"] = "application/json"
10

11
response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
12
  http.request(request)
13
end
14

15
puts response.body

1
require "uri"
2
require "json"
3
require "net/http"
4

5
uri = URI("https://docs-demo.quiknode.pro/eth/v1/beacon/blocks/head/root")
6

7
request = Net::HTTP::Get.new(uri)
8
request["Content-Type"] = "application/json"
9
request["Accept"] = "application/json"
10

11
response = Net::HTTP.start(uri.host, uri.port, use_ssl: true) do |http|
12
  http.request(request)
13
end
14

15
puts response.body

Response

1
{
2
  "execution_optimistic": false,
3
  "finalized": false,
4
  "data": {
5
    "root": "0x34a5b3a517ba96444a552be89516550a172299f5115b392dc50b612361959e5b"
6
  }
7
}

1
{
2
  "execution_optimistic": false,
3
  "finalized": false,
4
  "data": {
5
    "root": "0x34a5b3a517ba96444a552be89516550a172299f5115b392dc50b612361959e5b"
6
  }
7
}

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