Here is the part the product descriptions leave out. The industry's asset-depletion model verifies holdings at custodial platforms: exchange statements, account logins, custodian letters. Eric Bernstein, president of LendFriend Mortgage, put it plainly in Inman in August 2026 — holdings in a cold storage wallet "cannot currently be independently verified to underwriting standards regardless of their size." For the borrower who did the responsible thing and took their keys off an exchange, the loan that fits them can't see them.
That is partly a limit of the tooling and partly a program choice: some lenders’ written guidelines accept only custodial holdings no matter how well a self-custodied wallet is documented. Where a lender is willing, a RealScore™ Report verifies ownership by wallet signature — proof you control the keys, wherever the assets live: cold storage, hardware wallet, multisig, or an exchange account — attaches the transaction history an underwriter needs to see the assets are yours and not borrowed, and states a volatility-adjusted USD value as of the report date. The report is verifiable by document ID or through a lender verification account, which means nobody is being asked to trust a PDF, and lenders have accepted it as asset documentation in closed, mortgage-financed purchases. RealScore provides verification; it does not guarantee that a lender accepts self-custody or that asset values will not be reviewed again before funding. Ask before you move anything — some programs will require moving coins to an approved custodian to be counted.