curl --request GET \
  --url https://api.blockscout.com/{chain_id}/api/v2/optimism/batches \
  --header 'Authorization: Bearer <token>'

{
  "items": [
    {
      "l1_timestamp": "2023-11-07T05:31:56Z",
      "l1_transaction_hashes": [
        "<string>"
      ],
      "l2_end_block_number": 123,
      "l2_start_block_number": 123,
      "number": 123,
      "transactions_count": 123
    }
  ],
  "next_page_params": {
    "id": 394591
  }
}