SSZ Response Support

This endpoint also supports SSZ (SimpleSerialize) responses. Set Accept: application/octet-stream in the request header to receive an SSZ-encoded payload instead of JSON. SSZ responses are smaller and faster to parse, and are useful for consensus-layer clients and indexers.

curl -X GET "YOUR_QUICKNODE_ETHEREUM_URL/eth/v1/beacon/blobs/{block_id}" \
    -H "Accept: application/octet-stream" \
    --output blobs.ssz

Path Parameters

block_id

string

REQUIRED

Block identifier. Can be one of: "head" (canonical head in node's view), "genesis", "finalized", <slot>, <hex encoded blockRoot with 0x prefix>

Query Parameters

versioned_hashes

array

Array of versioned hashes for blobs to request for in the specified block. Returns all blobs in the block if not specified

Returns

execution_optimistic

boolean

True if the response references an unverified execution payload. Optimistic information may be invalidated at a later time. If the field is not present, assume the False value

finalized

boolean

True if the response references the finalized history of the chain, as determined by fork choice. If the field is not present, additional calls are necessary to compare the epoch of the requested information with the finalized checkpoint

data

array

An array of blobs. Each blob is FIELD_ELEMENTS_PER_BLOB * size_of(BLSFieldElement) = 4096 * 32 = 131072 bytes (DATA) representing a Blob as defined in Deneb

Request

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

1
curl -X GET "https://docs-demo.quiknode.pro/eth/v1/beacon/blobs/head" \
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/blobs/head', {
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/blobs/head', {
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/blobs/head"
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/blobs/head"
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/blobs/head")
6

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

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

15
puts response.body

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

5
uri = URI("https://docs-demo.quiknode.pro/eth/v1/beacon/blobs/head")
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
    "0x1bba05e7d2009b32fc1207d86408d35abfba31c0f2b7c44cff6deeb9042211b935fb48bbc5c07c8c418a4..."
6
  ]
7
}

1
{
2
  "execution_optimistic": false,
3
  "finalized": false,
4
  "data": [
5
    "0x1bba05e7d2009b32fc1207d86408d35abfba31c0f2b7c44cff6deeb9042211b935fb48bbc5c07c8c418a4..."
6
  ]
7
}

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