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eth-v1-validator-attestation_data

/eth/v1/validator/attestation_data

Produce an attestation data.​

Requests the creation of an AttestationData by the beacon node.

If the block specified by the beacon_block_root answer is optimistic (i.e., the attestation attests to a block that has not been fully verified by an execution engine), a 503 error has to be returned.

Example Request and Result for /v1/validator/attestation_data​

In this section, we provide an illustrative example of a request made to retrieve details contents using the /v1/validator/attestation_data endpoint. Additionally, we present the resulting response containing information about a new attestation data.

Parameters​

FieldTypeDescription

slot*

stringThe slot for which an attestation data should be created.

committee_index*

string

The committee index for which an attestation data should be created.

info

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!

Produce an attestation data.​

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

Query Parameters​

NameTypeDescription
slot*string1
committee_index*string1
{
  "data": {
    "slot": "1",
    "index": "1",
    "beacon_block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
    "source": {
      "epoch": "1",
      "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
    },
    "target": {
      "epoch": "1",
      "root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"
    }
  }
}

Curl Request example​

curl -X 'GET' \
  'https://eth-mainnet.blastapi.io/<project_id>/eth/v1/validator/attestation_data?slot=1&committee_index=1' \
  -H 'accept: application/json'