Coinfloor holds 100% of client bitcoin funds in cold storage and each withdrawal is signed by multiple keyholders within Coinfloor using a Multi-Signature Pay 2 Script Hash (P2SH) wallet. Our policy prevents any unintended withdrawals from happening and insures against a loss of client funds, either via internal theft, external theft/coercion or poor handling of private keys. All our client bitcoins are received, stored and sent out from within underground vaults which maintain the same security standards as the Bank of England.

We want to enable our customers to audit our system by publishing the Provable Solvency Report. The standards of the established financial ecosystem are quarterly audits done by a single firm. The advantage that Coinfloor has by existing in the bitcoin ecosystem is that we can have monthly audits which are viewable to anyone and auditable cryptographically rather than by a single firm. It’s a level of openness and auditability that you just don’t get with gold or really any other asset class.

We are committed to continuing to prove our solvency and prove that we are in possession of 100% of our client funds. As per that commitment, today we are publishing our 7th monthly Provable Solvency Report with step-by-step validation instructions for your convenience.



As of this afternoon, Coinfloor holds a total of 2507.0061 XBT on behalf of our clients. You are invited to verify that your held bitcoin are included in this balance by following the instructions below.

What does the Provable Solvency Report include?

We started out by creating an obfuscated report of all current client balances (the Solvency Report) and then generated a SHA-256 hash of this report.



We then created a bitcoin transaction to ourselves, that includes all currently held client bitcoin, for a value of 2509.8043 XBT and included in the output script the OP_RETURN of the SHA-256 hash of the report, proving that at the time of making the solvency report, Coinfloor held all of our clients’ XBT funds. You can verify the amount and details of the transaction in the blockchain.