POST
/
942aad90bb6a082676497030b81e40ba
curl --request POST \
  --url https://nd-363-550-219.p2pify.com/942aad90bb6a082676497030b81e40ba \
  --header 'Content-Type: application/json' \
  --data '{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "zkevm_batchNumberByBlockNumber",
  "params": [
    "0xD65B"
  ]
}'
{
  "jsonrpc": "<string>",
  "id": 123,
  "result": {}
}

Polygon zkEVM API method that returns the batch number associated with a given block number in the zkEVM chain.

In the zkEVM chain, multiple transactions are grouped together and verified as a single batch using zero-knowledge proofs. At the time of writing, the Polygon zkEVM works such that all individual transactions of a particular batch are processed as a separate block so that multiple blocks can be associated with a single batch of transactions.

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​
Parameters

  • blockNumber — a hexadecimal string representing a block number in the Polygon zkEVM chain.

​
Response

  • result — a string representing the batch number of the specified block number in the zkEVM chain.

​
zkevm_batchNumberByBlockNumber code examples

const Web3 = require("web3");

const NODE_URL = "YOUR_CHAINSTACK_ENDPOINT";

const web3 = new Web3(NODE_URL);



web3.extend({

    property: 'zkEVM',

    methods: [{

      name: 'batchNumberByBlockNumber',

      call: 'zkevm_batchNumberByBlockNumber',

      params: 1,

      inputFormatter: null,

      outputFormatter: null

    }]

  });



async function batchNumberByBlockNumber(blockId) {

  const output = await web3.zkEVM.batchNumberByBlockNumber(blockId)

  console.log(output)

}



batchNumberByBlockNumber("0xD65B");

Body

application/json
​
id
integer
default:1
​
jsonrpc
string
default:2.0
​
method
string
default:zkevm_batchNumberByBlockNumber
​
params
string[]

Response

200 - application/json
Returns the batch number associated with the given block number.
​
jsonrpc
string
​
id
integer
​
result
object