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|
|Nov 25, 2015||Provable Solvency Report #20 – November 2015||8,411.2577 XBT||a44e3c3ae74bb7ce49147491b5a72fad954a3336b3bb6301295070cf48d09de8||
55232dd9b984e271f048a7b1fb26e5570bb9700da0985441242e52ee22941677Copy to clipboard
|Oct 19, 2015||Provable Solvency Report #19 – October 2015||6,420.7434 XBT||e688c9e5cd3bf415e2f696eb9d8cf94c1e029257e97ce432941e63bdb56431db||
a70cff7d9af3b4398cfbe4c94f4dc6b42617e27e32f4a79cefe7e8af14106599Copy to clipboard
|Sep 24, 2015||Provable Solvency Report #18 – September 2015||5,824.9873 XBT||8dbf853c7a6b13e9cbdb9fd5e0ae31fca2c74c4e5afa34e9388a9172485e29ce||
8967b09f12a490b264a06945126a1055b2973a67e8fa33d47da3137da9e70cbcCopy to clipboard
|Aug 26, 2015||Provable Solvency Report #17 – August 2015||8,788.0447 XBT||69b963f652c47465d463bfd8ca414bf14c27c8e5300ea8cc067bb2dc5290b9c2||
8f3ed500c7cb89bfe09c0857a8365690cded7db613047f26de00410e45352a0cCopy to clipboard
|Jul 22, 2015||Provable Solvency Report #16 – July 2015||9,583.0661 XBT||f08d23ce9a4cb9e6330f3a4c8457fdc4f8546f30304e3f5b3ad80b654e45e975||
59ae219701e9c42c33e6454e7b4ccdad833f1ab7c4d380b255a8c2d832ecbd24Copy to clipboard
|Jun 23, 2015||Provable Solvency Report #15 – June 2015||5,358.4461 XBT||d601e640a1ba8470bb8bd759fb10f8d68e71f8a54335ff6663970d9b23391138||
6c219544e18b0af09eabbd1ad92b0923fcdfa38ea48c13aa4b880b01e307d461Copy to clipboard
|May 25, 2015||Provable Solvency Report #14 – May 2015||5,081.7876 XBT||24e109b59a78a10f86057cac8a28c8f5dc7f69e8dcde6baa6fb26d190bb8c113||
e51e7eea4e6ee376b0634c6e88cdd6ff9e951eabd5dd8087dedf4376302a7b50Copy to clipboard
|Apr 19, 2015||Provable Solvency Report #13 – April 2015 – Supporting the UK Market||5,037.4662 XBT||10f6dbd42400fa061e182f9612e48ad4891881556e081838dc127a1eb73591d2||
e7e7067b874c0ee7c372191b4cdaccf2570a8aaf9a9c52f97a882022db9808e4Copy to clipboard
|Mar 26, 2015||Provable Solvency Report #12 – March 2015 – Transparency and security||4,704.1683 XBT||09c602881421cca8b7e219e6d2469174f68586998a2f10bf0cc875b838be3cd8||
d4435cb5927ba51d8eed40b1457cefeeb742c9d2db6a26bca0c656594ebb0dafCopy to clipboard
|Feb 23, 2015||Provable Solvency Report #11 – February 2015, 100% Multi-signature Cold Storage||3267.5896 XBT||19ca1b45d586d74e95731713ba6dd5ed0c1db55e778890e3621acc61f1d75086||
0ad2daa6b56bde70692d9f310354e1e85a30fd318eef8d5c83ac273dad412964Copy to clipboard
|Name of the report||Provable Solvency Report #20 – November 2015|
|SHA-256 Hash of the report||a44e3c3ae74bb7ce49147491b5a72fad954a3336b3bb6301295070cf48d09de8|
|Date (UTC+05:30)||Nov 25, 2015|
|Name of the report||Provable Solvency Report #19 – October 2015|
|SHA-256 Hash of the report||e688c9e5cd3bf415e2f696eb9d8cf94c1e029257e97ce432941e63bdb56431db|
|Date (UTC+05:30)||Oct 19, 2015|
|Name of the report||Provable Solvency Report #18 – September 2015|
|SHA-256 Hash of the report||8dbf853c7a6b13e9cbdb9fd5e0ae31fca2c74c4e5afa34e9388a9172485e29ce|
|Date (UTC+05:30)||Sep 24, 2015|
|Name of the report||Provable Solvency Report #17 – August 2015|
|SHA-256 Hash of the report||69b963f652c47465d463bfd8ca414bf14c27c8e5300ea8cc067bb2dc5290b9c2|
|Date (UTC+05:30)||Aug 26, 2015|
|Name of the report||Provable Solvency Report #16 – July 2015|
|SHA-256 Hash of the report||f08d23ce9a4cb9e6330f3a4c8457fdc4f8546f30304e3f5b3ad80b654e45e975|
|Date (UTC+05:30)||Jul 22, 2015|
|Name of the report||Provable Solvency Report #15 – June 2015|
|SHA-256 Hash of the report||d601e640a1ba8470bb8bd759fb10f8d68e71f8a54335ff6663970d9b23391138|
|Date (UTC+05:30)||Jun 23, 2015|
|Name of the report||Provable Solvency Report #14 – May 2015|
|SHA-256 Hash of the report||24e109b59a78a10f86057cac8a28c8f5dc7f69e8dcde6baa6fb26d190bb8c113|
|Date (UTC+05:30)||May 25, 2015|
|Name of the report||Provable Solvency Report #13 – April 2015 – Supporting the UK Market|
|SHA-256 Hash of the report||10f6dbd42400fa061e182f9612e48ad4891881556e081838dc127a1eb73591d2|
|Date (UTC+05:30)||Apr 19, 2015|
|Name of the report||Provable Solvency Report #12 – March 2015 – Transparency and security|
|SHA-256 Hash of the report||09c602881421cca8b7e219e6d2469174f68586998a2f10bf0cc875b838be3cd8|
|Date (UTC+05:30)||Mar 26, 2015|
|Name of the report||Provable Solvency Report #11 – February 2015, 100% Multi-signature Cold Storage|
|SHA-256 Hash of the report||19ca1b45d586d74e95731713ba6dd5ed0c1db55e778890e3621acc61f1d75086|
|Date (UTC+05:30)||Feb 23, 2015|
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.