# Verify ownership of a blockchain address

Verify ownership of a blockchain address by signing a message with your private key.

Endpoint: POST /user/{domain}/address/{symbol}
Version: 1.0.0

## Path parameters:

  - `domain` (string, required)
    The domain name to query profile data

  - `symbol` (string, required)
    The ticker symbol for the blockchain to verify

## Request fields (application/json):

  - `message` (string)
    A custom message that must be signed with the private key of the address
    Example: "Unique message to sign"

  - `signature` (string)
    Signature generated by signing the message with the private key
    Example: "cd0dadab45baf9a06ce1279d1342ecc3f44845af"


## Response 200 fields

## Response 400 fields

## Response 404 fields