/eth/v1/validator/sync_committee_contribution

Produce a sync committee contribution

Requests that a sync committee contribution be generated by the beacon node.

If the block found in the beacon_block_root response is optimistic (i.e., the sync committee contribution points to a block that has not been fully confirmed by an execution engine), a 503 error has to be returned.

Example Request and Result for /v1/validator/sync_committee_contribution

In this section, we provide an illustrative example of a request made to retrieve details contents using the /v1/validator/sync_committee_contribution endpoint. Additionally, we present the resulting response containing information about producing a sync committee contribution.

Parameters

FieldsStringDescription

slot*

string

The slot for which a sync committee contribution should be created.

subcommittee_index*

string

The subcommittee index for which to produce the contribution.

beacon_block_root*

string

The block root for which to produce the contribution.

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 a sync committee contribution.

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

Query Parameters

NameTypeDescription

slot*

string

1

subcommittee_index*

string

1

beacon_block_root*

string

0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2

{
  "data": {
    "slot": "1",
    "beacon_block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2",
    "subcommittee_index": "1",
    "aggregation_bits": "0xffffffffffffffffffffffffffffffff",
    "signature": "0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"
  }
}

Curl Request example

curl -X 'GET' \
  'https://eth-holesky-beacon.blastapi.io/<project-id>/eth/v1/validator/sync_committee_contribution?slot=1&subcommittee_index=1&beacon_block_root=0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2' \
  -H 'accept: application/json'

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