RealOpen Certified · Lesson 4 of 8

Proof of funds and verification

After this, you can say what a crypto proof of funds does and does not prove, read a RealOpen letter, and tell a listing agent how to check one.

After this lesson you can

  • Separate six things a document can show: that assets exist, that someone controls an address, that the buyer owns or is authorized to use them, that they are liquid, that they are acceptable, and that they are available on the closing timeline.
  • Explain how RealOpen verifies a buyer and why only a wallet the buyer controls can be verified.
  • Tell control from legal ownership, and ask the right questions when a wallet belongs to an LLC, a trust or more than one signer.
  • Read a Proof of Funds letter: the name, the date, the amount, the staking lines, and what the letter does not say.

By Johnny Schiro, licensed real estate broker in Texas, New York and Florida. Updated 2026-10-10.

This check has five questions. You need 4 correct to pass.

Why a screenshot is worthless

A screenshot of a wallet, an exchange account or a block explorer fails three ways. It does not show whose address it is. It does not show that the person can move the funds. And it can be faked in minutes with basic tools.

Treat a buyer who offers a screenshot the way you would treat a buyer who says they are pre-approved for $10 million and has no letter.

Six things a proof can show

"Proof of funds" sounds like one fact. It is six, and they are not interchangeable.

What you want to knowWhat shows itWhat does not
1. The assets existA balance read from the blockchain at a named addressA statement from a platform you cannot independently check
2. Someone controls the addressA message signed with the wallet, or a small transfer sent from itA screenshot, a video of the app, knowing the address
3. The buyer owns them, or is authorized to use themIdentity verification tied to the wallet, plus entity documents when an LLC, trust or partnership holds the walletControl alone. A key proves a key, not a legal right
4. They are liquidTransferable today, as opposed to staked, vesting, pledged or on an exchange holdA total that lumps locked and liquid together
5. They are acceptableAn asset on the accepted list, at a conservative value, from a screened addressA token nobody will convert, or funds that fail screening
6. They are available on the timelineLead times for unstaking, exchange withdrawals and confirmations fit the closing dateA balance that is real but two weeks from transferable with closing in five days

A RealOpen verification answers the first, second, fourth and fifth, states a figure for the sixth, and ties the wallet to a verified individual for the third. The entity cases in the third row are where you still have questions to ask. More on that below.

How RealOpen verifies a buyer

There are three checks, and together they take about 15 minutes.

  1. Identity. The buyer submits a government ID and a selfie through a regulated identity verification provider. Approval usually takes minutes.
  2. Wallet screening. The buyer shares their public wallet address. RealOpen reads the balance and history from the blockchain, screens the address for sanctions and illicit activity, and documents where the funds came from.
  3. Proof of ownership. The buyer proves they control the wallet in one of two ways: by signing a message with the wallet, or by sending a small verification transfer of a few dollars from it. The transfer must come from the wallet being verified and must match the quoted crypto amount exactly; a transfer sent straight from an exchange account verifies nothing. Signing is not available on every network. XRP and Cardano wallets, and multisignature Bitcoin wallets, verify by transfer.

Nothing else moves. The buyer's crypto stays where it is until funding. RealOpen never asks for a private key or a seed phrase.

Verification needs a wallet the buyer controls

Proof of ownership works for wallets the buyer controls: hardware wallets, software wallets, cold storage and multisig. It does not work for an exchange account, because the exchange holds the keys.

So when a buyer's crypto is on an exchange, tell them this: withdraw it to a wallet you control and verify that wallet. When it is time to fund, you can still send from wherever you like.

A buyer whose assets sit with an institutional custodian is in the same position: the custodian holds the keys. The preferred path is the same too, move the assets to a wallet the buyer controls and verify that. Where that is not possible, RealOpen has a manual path: a statement or letter from the custodian or exchange documenting the holdings and the buyer's authority over them, reviewed by RealOpen staff, who can approve a letter on that basis. It is slower and it is staff judgment, so start it early and do not promise the outcome.

A Bitcoin wallet usually holds its funds across many addresses. Every verified address counts, and the dashboard shows a Bitcoin holder how to get all of theirs counted.

Staked assets are handled in the same scan. Supported staking positions count toward the verified total and are disclosed on the letter as staked. The buyer does not have to unstake to be verified. They do need transferable funds by the time the deal is funded, and unstaking can take days.

Control is not ownership

A signed message proves that whoever signed it holds the key. It does not say who legally owns the money or whether the signer may spend it on a house. Most of the time those are the same person, and identity verification ties the wallet to them. Three situations are different.

  • An LLC-owned wallet. The person signing your contract is a member or manager. The wallet is the company's. Ask who holds the keys, who has authority to spend company funds on this purchase, and whether the buyer on the contract is the company or the individual. The operating agreement answers most of it. If the LLC is buying, the LLC is the buyer on the contract and the funds should be documented as the LLC's. RealOpen handles an entity buyer on a manual path today: tell RealOpen before the offer, the buyer provides the entity's documents (formation documents, the operating agreement or trust instrument, and who is authorized to sign), and RealOpen staff review them before a letter is issued. That takes longer than an individual verification, so start it the day the entity comes up.
  • A trust. Same questions, with the trust instrument in place of the operating agreement, and the trustee as the person with authority.
  • A wallet controlled with others. A multisignature wallet, or a personal arrangement where a spouse or partner holds a key. The funds may be entirely legitimate; what you need to know is that the people required to sign a transfer are available and willing on funding day.

None of this makes you a compliance officer. You are asking the same question you would ask about a buyer whose down payment comes from a family trust: who has the authority to spend this, and does the name on the contract match. The red version of this situation is Module 3's mysterious partner: an outside party who controls everything and the buyer cannot document anything.

Reading a Proof of Funds letter

A RealOpen Proof of Funds letter is one page, titled "Verification of Funds." It contains:

  • A statement that RealOpen confirms its client, named in full, has the assets shown, with no encumbrance known to RealOpen, as of the date shown.
  • A statement that those assets are acceptable to RealOpen to fund a real estate purchase with total cash to close not exceeding the amount shown.
  • The date.
  • Available Assets, in U.S. dollars.
  • If part of the total is staked, an asset composition section that separates what is available for immediate transfer from what is held in staking positions.
  • A disclaimer that the letter places no obligation on the client and does not guarantee the assets will be available in the future.
  • RealOpen's contact details.

How to read one:

  • The name should match the buyer on your contract.
  • The date should be recent. Crypto values move, so a letter from months ago tells you little. Ask for a current one.
  • The amount should cover cash to close on your offer. A letter can be issued for a specific amount up to the buyer's verified limit, so a buyer does not have to reveal everything they hold.
  • The amount is conservative. RealOpen counts volatile assets such as Bitcoin at 93.5% of market value and stablecoins at 98%.
  • The staking lines, if present, tell you part of the money needs lead time.

What the letter does not say

A Proof of Funds is not the purchase money and it is not a mortgage pre-approval. It shows verified buying power on the date printed. It does not guarantee the price will hold, that the buyer will not spend the money elsewhere, or that a lender will accept the assets. It says nothing about the buyer's income. On a financed purchase, the lender needs the RealScore Report instead, which Module 5 covers.

How the other side checks a document

If a listing agent wants to confirm a letter, RealOpen's contact details are printed on it, and they can call or email. Every RealScore Report and Transaction Record carries a document ID and a QR code, and anyone can enter the ID at realopen.com/verify to confirm the document is authentic, unaltered and current. A RealScore Report is current for 30 days; a newer report supersedes an older one, and the verify page shows which is which.

If a letter's contact details do not match RealOpen's published ones, or RealOpen cannot confirm it, treat the letter as fake. Module 3's fake proof-of-funds pattern starts exactly there.

RealOpen Certified is a private designation issued by RealOpen. It is not continuing education credit and is not issued or endorsed by any state licensing authority. How certifying works.