Get Asset Proof

Get a merkle proof for a compressed asset by its ID.

Overview

This is an essential method for transactions involving a compressed asset. For instance, when you need to transfer a compressed NFT you need to return the proof and tree id for the transaction to be successful.

There is additional preparation needed on the root for a transaction, you can check out transferAsset in our examples repository here to see how this is used.

getAssetProof

POSThttps://mainnet.helius-rpc.com/?api-key=<api-key>

Query parameters

Body

application/json

jsonrpc*enum

The version of the JSON-RPC protocol.

2.0

id*string

An ID to identify the request.

method*enum

The name of the DAS method to invoke.

getAssetProof

params*object

Response

200400401403404429500200 No Content

Successful response

Body

application/json

rootstring

The root of the merkle tree.

Example: "2o6Y6EiY3WXhoaEpei2pHmHLYnHDcEQVhgD89GrGHDBH"

proofarray of string

The proof of the asset.

node_indexinteger

Example: 16384

leafstring

The leaf of the merkle tree.

Example: "6YdZXw49M97mfFTwgQb6kxM2c6eqZkHSaW9XhhoZXtzv"

tree_idstring

The ID of the merkle tree.

Example: "2kuTFCcjbV22wvUmtmgsFR7cas7eZUzAu96jzJUvUcb7"

Request

JavaScriptCurlPython

const response = await fetch('https://mainnet.helius-rpc.com/?api-key=<api-key>?api-key=string', {
    method: 'POST',
    headers: {
      "Content-Type": "application/json"
    },
    body: JSON.stringify({
      "jsonrpc": "2.0",
      "id": "text",
      "method": "getAssetProof",
      "params": {
        "id": "Bu1DEKeawy7txbnCEJE4BU3BKLXaNAKCYcHR4XhndGss"
      }
    }),
});
const data = await response.json();

Response

200400401403404429500

{
  "root": "2o6Y6EiY3WXhoaEpei2pHmHLYnHDcEQVhgD89GrGHDBH",
  "proof": [
    [
      "EmJXiXEAhEN3FfNQtBa5hwR8LC5kHvdLsaGCoERosZjK",
      "7NEfhcNPAwbw3L87fjsPqTz2fQdd1CjoLE138SD58FDQ",
      "6dM3VyeQoYkRFZ74G53EwvUPbQC6LsMZge6c7S1Ds4ks",
      "A9AACJ5m7UtaVz4HxzhDxGjYaY88rc2XPoFvnoTvgYBj",
      "2VG5cKeBZdqozwhHGGzs13b9tzy9TXt9kPfN8MzSJ1Sm",
      "3E1uFze4pi6BnTZXMsQbeh3jQCeDi966Zax9aMbYgg2D",
      "Bx9PdctdWCeC1WfU6dwP49idsXCYhqyxbRLyLwwGhr61",
      "HSbJ8quT4vuXFgf5FnjzeUuFfAtLKsq6W1Frj8y1qrif",
      "GJMLzL4F4hY9yFHY1EY6XRmW4wpuNGeBZTiv7vM2mYra",
      "FYPtEiqmRx6JprHQvWeEWEuVp3WA7DPRCE4VbhFRVuAj",
      "6MJKrpnK1GbYsnEzwMRWStNGkTjAZF23NhzTQSQVXsD3",
      "HjnrJn5vBUUzpCxzjjM9ZnCPuXei2cXKJjX468B9yWD7",
      "4YCF1CSyTXm1Yi9W9JeYevawupkomdgy2dLxEBHL9euq",
      "E3oMtCuPEauftdZLX8EZ8YX7BbFzpBCVRYEiLxwPJLY2"
    ]
  ],
  "node_index": 16384,
  "leaf": "6YdZXw49M97mfFTwgQb6kxM2c6eqZkHSaW9XhhoZXtzv",
  "tree_id": "2kuTFCcjbV22wvUmtmgsFR7cas7eZUzAu96jzJUvUcb7"
}

Example

const url = `https://mainnet.helius-rpc.com/?api-key=<api_key>`

const getAssetProof = async () => {
  const response = await fetch(url, {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      jsonrpc: '2.0',
      id: 'my-id',
      method: 'getAssetProof',
      params: {
        id: 'Bu1DEKeawy7txbnCEJE4BU3BKLXaNAKCYcHR4XhndGss'
      },
    }),
  });
  const { result } = await response.json();
  console.log("Assets Proof: ", result);
};
getAssetProof();