/eth/v1/beacon/blob_sidecars/{block_id}

Get blob sidecars.

Obtains blob sidecars for the specified block id. It may be returned as JSON or as bytes serialized using SSZ, depending on the Accept header.

Only the blob sidecars with the provided indices will be returned if the indices option is supplied. Regarding ordering, there are no assurances for the returned blob sidecars.

Example Request and Result for /v1/beacon/blob_sidecars/{block_id}

In this section, we provide an illustrative example of a request made to retrieve details contents using the /v1/beacon/blob_sidecars/{block_id} endpoint. Additionally, we present the resulting response containing information about blob sidecars.

Parameters

Field	Type	Description
block_id*	string	Block identifier. Can be one of: "head" (canonical head in node's view), "genesis", "finalized", <slot>, <hex encoded blockRoot with 0x prefix>.
indices	array<string>	Array of indices for blob sidecars to request for in the specified block. Returns all blob sidecars in the block if not specified.

The example in this section uses a non-existing project id.

Make sure you replace it with your Ethereum Holesky Beacon endpoint when issuing the API calls.

Don't have a project id? Here's a straightforward guide on how to obtain one!

Get blob sidecars.

GET https://eth-holesky-beacon.blastapi.io/<project-id>/eth/v1/beacon/blob_sidecars/<block_id>

Path Parameters

Name	Type	Description
block_id*	string	head

Query Parameters

Name	Type	Description
indices	array<string>

200: OK Expand for a detailed response example

{
  "data": [
    {
      "block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
      "index": "1",
      "slot": "1",
      "block_parent_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
      "proposer_index": "1",
      "blob": "0xCe385D17DF2ED7CD12957FFd34661458578AFa760C7BAFA26FF25BddB8dc0aeD07Ac1d7864b9CbD6Af28d2F7fE92F9F21D39c9d6177f6e493CE70Ae5D01bAC85bbd7bA54FCe2CccA0A0C5aFFEFB9697ae65baeb1BCeBb2BfBC19666Cb25030Cf24dDF1CBC08c2BA60D3D23c8c1BD5edb9ca2ecB1647117dadfeC18abacF60be55a6c5f1A0DdC3BaACeCf1EE36d5a410a2a5b4eddAe76efD33f0f94
      ......,
       "kzg_commitment": "0x93247f2209abcacf57b75a51dafae777f9dd38bc7053d1af526f220a7489a6d3a2753e5f3e8b1cfe39b56f43611df74a",
      "kzg_proof": "0xA5FB5E9De7BC1eC069A8264C594b43FECacb277F3fb884516Af85AcD950D8aC166cdcA8432EA1EEcfb35bc00fbD2A5fB"
    }
  ]
} 

Curl Request example

curl -X 'GET' \
  'https://eth-holesky-beacon.blastapi.io/<project-id>/eth/v1/beacon/blob_sidecars/head' \
  -H 'accept: application/json'