Bitcoin audits help clients independently verify whether an exchange is solvent or whether they have been hacked or have misused their clients’ crypto.Coinfloor is a custodian of client bitcoins and we believe that we must set the industry standard for transparency and regular attestations. Without proper public accountability, the industry will not be able to grow and mature. This is why we have always committed to releasing a Bitcoin audit (also known as “Provable Solvency” or “Proof of Custody”) Report every month. Coinfloor is proud to have the longest track record in the world for creating these reports – in fact, we have produced more solvency reports than all other major cryptocurrency exchanges combined. You can review all our solvency reports below For more information about why Bitcoin audits and Proof of Custody is so important, see the excellent article on how to effectively scale the Bitcoin industry by Nic Carter, the respected crypto commentator.
The invention of the Bitcoin blockchain as a global decentralised ledger enables markets to produce new standards of accountability and the safeguarding of client funds. In a self-regulated environment such as Bitcoin, firms must compete for customers’ trust by providing greater transparency.
We believe that this approach is the best way to achieve maximum accountability while retaining privacy for our clients. We welcome feedback from the community and hope that other exchanges are also able to safeguard client funds and will provide proof of solvency as well.
Coinfloor is dedicated to accountability and has committed to publish a Provable Solvency Report every month, showing the total amount of client funds Coinfloor has on deposit and proving ownership of those funds on the blockchain.
Need help? Email us at [email protected]
|Date (UTC+05:30)||name of the report||Amount||SHA-256 Hash of the report||Transaction ID|
|Jan 21, 2015||Provable Solvency Report #10 – January 2015, 100% Multi-signature Cold Storage||4352.1603 XBT||dd1fe71068fc7cfe7b398ccaeb3487dc72fd3fceaccbd75fccf829b2f81db8ec||
a0a6b969fdc66f2491b57d6a734cd65b4faf5e7fa1dbdd1091efa5104b70473fCopy to clipboard
|Dec 18, 2014||Provable Solvency Report #9 – December 2014||3155.2001 XBT||0b3459f7390fe983404ce92255d77ab9f205ddb7bdd9c72ad6b4e97fee677ccf||
9ae00403e8ecaef49a52b727a9765d772a2e50313903eedecdbf3e768bd8bc10Copy to clipboard
|Nov 19, 2014||Provable Solvency Report #8 – November 2014||4072.1269 XBT||f5a78eeb21fd68c2bcdb4f4b222f59285b6705de0af0e7cd1a8ec5ba86f9fa25||
3a5860f230c9e56e784c2600c1116e846027dc9d8002e5240f17bed4b1d2eb60Copy to clipboard
|Oct 22, 2014||Provable Solvency Report #7 – October 2014||2507.0061 XBT||6e57d304f290c51ea801e57b5593fe28bfc78df2e482bd1a2dab5b1af94264e5||
843dbafbc64bd83094e0d9c2668ae8ef9302a1c84c87ecf30799ff0c4115dae8Copy to clipboard
|Sep 22, 2014||Provable Solvency Report #6 – September 2014||2356.378 XBT||0fda488186148304b7f1181ec9f01201566d98980e5f88e1c92e37e05dcceb65||
66755a993681437e8e1a94d3ec4eabcd039a9c9bc0db76d465402c41c1d41330Copy to clipboard
|Aug 18, 2014||Provable Solvency Report #5 – August 2014||1682.6508 XBT||2c167b8083f43c0fade21c81ad9cd7cc096992e1549d374c7c26a24b55b386b4||
74ca117615fd8f0fbaaf2e722e14b9123bc9061d72eb1ac236122f5971d4bda1Copy to clipboard
|Jul 21, 2014||Provable Solvency Report #4 – July 2014||1193.2385 XBT||17fcd432d8ddb52829f6fc7937e7889ef0ad063fa90d743b2b6a320930e93048||
23efc10d505b536b332ffbec343389f39e4d4654b888fa1a30cb258c30c1f19fCopy to clipboard
|Jun 18, 2014||Provable Solvency Report #3 – June 2014||846.579 XBT||3a093308c48daa40e0201d290f76a762fab416c86e6052a58bb139cdef74e2ce||
fc5d279f675bd697483cab7b02ca34bc89fc1ba6b190ba4e23f14a31a2e2dcacCopy to clipboard
|May 19, 2014||Provable Solvency Report #2 – May 2014||292.75683101 XBT||4b4fc702ca3093a9b3dc3f026e8b6d35a70ffd8e183c5bf49c18db00ac97b8e4||
635dc48a0841f30ad9723839aad90fdf6d7da12a623f2a7c1607c681b311026bCopy to clipboard
|Apr 17, 2014||Coinfloor’s First Provable Solvency Report||160.29654334 XBT||156f86147d4c0e9dbfb37bed290980807939c50df3a3b6e11e160ced4ce54c47||
573d096e74324683d9dc7e47af2a9df07b09bbd46c93f77bb4a4825ac685f595Copy to clipboard
|Name of the report||Provable Solvency Report #10 – January 2015, 100% Multi-signature Cold Storage|
|SHA-256 Hash of the report||dd1fe71068fc7cfe7b398ccaeb3487dc72fd3fceaccbd75fccf829b2f81db8ec|
|Date (UTC+05:30)||Jan 21, 2015|
|Name of the report||Provable Solvency Report #9 – December 2014|
|SHA-256 Hash of the report||0b3459f7390fe983404ce92255d77ab9f205ddb7bdd9c72ad6b4e97fee677ccf|
|Date (UTC+05:30)||Dec 18, 2014|
|Name of the report||Provable Solvency Report #8 – November 2014|
|SHA-256 Hash of the report||f5a78eeb21fd68c2bcdb4f4b222f59285b6705de0af0e7cd1a8ec5ba86f9fa25|
|Date (UTC+05:30)||Nov 19, 2014|
|Name of the report||Provable Solvency Report #7 – October 2014|
|SHA-256 Hash of the report||6e57d304f290c51ea801e57b5593fe28bfc78df2e482bd1a2dab5b1af94264e5|
|Date (UTC+05:30)||Oct 22, 2014|
|Name of the report||Provable Solvency Report #6 – September 2014|
|SHA-256 Hash of the report||0fda488186148304b7f1181ec9f01201566d98980e5f88e1c92e37e05dcceb65|
|Date (UTC+05:30)||Sep 22, 2014|
|Name of the report||Provable Solvency Report #5 – August 2014|
|SHA-256 Hash of the report||2c167b8083f43c0fade21c81ad9cd7cc096992e1549d374c7c26a24b55b386b4|
|Date (UTC+05:30)||Aug 18, 2014|
|Name of the report||Provable Solvency Report #4 – July 2014|
|SHA-256 Hash of the report||17fcd432d8ddb52829f6fc7937e7889ef0ad063fa90d743b2b6a320930e93048|
|Date (UTC+05:30)||Jul 21, 2014|
|Name of the report||Provable Solvency Report #3 – June 2014|
|SHA-256 Hash of the report||3a093308c48daa40e0201d290f76a762fab416c86e6052a58bb139cdef74e2ce|
|Date (UTC+05:30)||Jun 18, 2014|
|Name of the report||Provable Solvency Report #2 – May 2014|
|SHA-256 Hash of the report||4b4fc702ca3093a9b3dc3f026e8b6d35a70ffd8e183c5bf49c18db00ac97b8e4|
|Date (UTC+05:30)||May 19, 2014|
|Name of the report||Coinfloor’s First Provable Solvency Report|
|SHA-256 Hash of the report||156f86147d4c0e9dbfb37bed290980807939c50df3a3b6e11e160ced4ce54c47|
|Date (UTC+05:30)||Apr 17, 2014|
Copy the entire contents of the solvency report (including any leading or trailing spaces or blank lines) into the SHA-256 generator and calculate the SHA-256 hash of the report. You can confirm the hash generated matches with the SHA-256 hash of the report field.
You will find the hash generated in the previous step matches the hash in the “Hex” reference (at the top of the page below a heading saying “Data Embedded in Transaction with Unknown Protocol”) of the transaction published on the Bitcoin blockchain.
The provable solvency report consists of balances attached to SHA-1 hashes for each customer account.
You will need the timestamp from the Solvency Report (10 digit number on the first row of the report) followed directly by the API authentication cookie from your Coinfloor account.
API authentication cookie (API Key): 9BTa7M0Z/Mrk6tFMJwXXXXXXXXXX
Input to calculate you SHA1 Hash is: 1579519XXX9BTa7M0Z/Mrk6tFMJwXXXXXXXXXX
We believe that this approach is the best way to achieve maximum accountability whilst retaining privacy for our clients. We welcome your feedback and hope that in time, other exchanges will also help safeguard client funds by providing proof of solvency reports to their users on a regular basis.