zks_getProof

Returns Merkle proofs for one or more storage values for the specified account along with a Merkle proof of their authenticity. This allows you to verify that the values have not been tampered with.

Parameters

• address: [Required] The account to fetch storage values and proofs for.
• keys: [Required] Vector of storage keys in the account.
• l1BatchNumber: [Required] Number of the L1 batch specifying the point in time at which the requested values are returned.

Response

• address: The account address.
• storageProof: Proof for each of the requested keys in the order at which they were requested:
  • key - The requested storage key.
  • value - The storage value.
  • index - Index of the tree entry.
  • proof - Sequence of zero or more 32-byte hashes that form a Merkle path for the key in the Merkle tree. Hashes are listed using the root-to-leaf ordering. The root hash is excluded; it is published on L1 as a part of L1 batch commit data.

Example

Replace <YOUR-API-KEY> with an API key from your MetaMask Developer dashboard.

Request

• curl
• WSS

curl https://zksync-mainnet.infura.io/v3/<YOUR-API-KEY> \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc": "2.0", "id": 1, "method": "zks_getProof", "params": ["0x0000000000000000000000000000000000008003", ["0x8b65c0cf1012ea9f393197eb24619fd814379b298b238285649e14f936a5eb12"], 354895]}'

wscat -c wss://zksync-mainnet.infura.io/ws/v3/<YOUR-API-KEY> -x '{"jsonrpc": "2.0", "id": 1, "method": "zks_getProof", "params": ["0x0000000000000000000000000000000000008003", ["0x8b65c0cf1012ea9f393197eb24619fd814379b298b238285649e14f936a5eb12"], 354895]}'

Response

• JSON

{
  "jsonrpc": "2.0",
  "result": {
    "address": "0x0000000000000000000000000000000000008003",
    "storageProof": [
      {
        "key": "0x8b65c0cf1012ea9f393197eb24619fd814379b298b238285649e14f936a5eb12",
        "proof": [
          "0xe3e8e49a998b3abf8926f62a5a832d829aadc1b7e059f1ea59ffbab8e11edfb7",
          "0x9bebfa036e85a6ffb6bf447a9c7d41af176642c6aaf5cfbc97128f4f10d8a25a",
          ...
          "0x9ebd7b37a21fb0c74d0040a941038887caf4e4c7dfaa182b82915cacc6191025",
          "0x4550ab30af8c76557a74d051eb43a964889d383d6da343c6a4f4799595d86f9c"
        ],
        "value": "0x0000000000000000000000000000000000000000000000000000000000000060",
        "index": 27900957
      }
    ]
  },
  "id": 1
}