cast-proof.md

cast proof

NAME

cast-proof - Generate a storage proof for a given storage slot.

SYNOPSIS

cast proof [options] address [slots...]

DESCRIPTION

Generate a storage proof for a given storage slot.

The address (address) can be an ENS name or an address.

The displayed output is a JSON object with the following keys:

• accountProof: Proof for the account itself
• address: The address of the account
• balance: The balance of the account
• codeHash: A hash of the account's code
• nonce: The nonce of the account
• storageHash: A hash of the account's storage
• storageProof: An array of storage proofs, one for each requested slot
• storageProof.key: The slot
• storageProof.proof: The proof for the slot
• storageProof.value: The value of the slot

OPTIONS

Query Options

-B block
--block block
    The block height you want to query at.

    Can be a block number, or any of the tags: earliest, finalized, safe, latest or pending.

RPC Options

{{#include ../common/rpc-url-option.md}}

{{#include ../common/display-options.md}}

{{#include common-options.md}}

EXAMPLES

1. Get the proof for storage slot 0 on the WETH contract:

   cast proof 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 0

SEE ALSO

cast, cast storage