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description
Prove account ownership of a Flow account

Account Proof

Flow provides a way for dApps to ask for users' signatures when they connect a wallet and verify account ownership. For more information, refer to Account Proof on Flow.

Currently Blocto self-custody accounts generate this signature slightly differently and needs an alternative way to verify ownership.

import { AppUtils } from '@blocto/fcl'

const isSignatureValid = await AppUtils.verifyAccountProof(
  appIdentifier,
  {
    address,
    nonce,
    signatures,
  },
  {
    fclCryptoContract: BLOCTO_FCLCRYPTO_CONTRACT_ADDRESS
  }
)

The addresses of the Blocto FCLCrypto contract BLOCTO_FCLCRYPTO_CONTRACT_ADDRESS can be found here:

Network Blocto FCLCrypto Address
Mainnet 0xdb6b70764af4ff68
Testnet 0x5b250a8a85b44a67

More about verifyAccountProof api

{% embed url="https://codesandbox.io/s/flow-account-proof-v2-u3twk1" %}