What are Bitcoin Audits?

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.

Make Exchanges Prove their Reserves

Powered by the Bitcoin block chain

The invention of the block chain 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.

Maximum Accountability since 2014

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.

Report Published Every Month

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 block chain.

All published Provable Solvency Reports

Need help? Email us at [email protected]

Date (UTC+05:30) name of the report Amount SHA-256 Hash of the report Transaction ID
Mar 13, 2020 Provable Solvency Report #72 – March 2020 3,668.9920 XBT B161B2DF5BFB7BC88AC4344942DFB89808F29F3262D57714E7D9392E8841555D
f4121529e8f653b4766694c54c39f7c932d642541ff6e6613164f705f7ea1212
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Feb 17, 2020 Provable Solvency Report #71 – February 2020 3,682.9458 XBT 8AB00AB9181600EC44FA6972B267337F218D1D5E10CFBB091F31B9CFB6E7F802
8ea4cdd4a9759846c1ed7a4ba99fdd280b4ca9c69c7d3a298909549df8b12548
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Jan 20, 2020 Provable Solvency Report #70 – January 2020 3,815.4219 XBT 1fa6c926cfda1639cd6d32e56c8002b83ca4b5eefc2cf4de4ea885bd0a3277bd
b18053a66d1f0577231662596059f39e0bedaaa7fd42942a51e7e1c65a19c090
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Dec 11, 2019 Provable Solvency Report #69 – December 2019 3,778.6544 XBT EAA1319D7706E3F02E74635E8F0D067B53E9112FDB35E53CA28CF7457C30B10F
2129f845fb83b8ede7fbe35da5cb5fe8447f372aee4af2ec97a22dff7a615ef6
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Nov 14, 2019 Provable Solvency Report #68 – November 2019 3,961.8415 XBT 766332ADFED1E39AC1FE2A2FB4196D7221C46385635F1E95AE41E353359F3462
35c90fa16acd63500f3a6c06ced2547d2f020450fa5fa2e87e3a9bee5773835c
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Oct 24, 2019 Provable Solvency Report #67 – October 2019 3,908.6071 XBT D416EBDE74A254F4E6DA2828C2DAFDDB5DC036C69AD7114ABF54F57DD1B1686D
c354df2e5d6a7c8fc77b28dfbbcaf70dc6beae755bbdeb877d2785b2343208d6
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Sep 30, 2019 Provable Solvency Report #66 – September 2019 3,907.8566 XBT 0F7C866DC215B965067F7E01828696216F19141CA11638AD21C7272E1879404C
737282fa27d66208b53541a78b7c9a31c8e7bd7a8d52ad87de2498421ce0ea95
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Aug 9, 2019 Provable Solvency Report #65 – August 2019 3,870.0066 XBT AF5789B7B50A7B0D9B4CFE5FE4F2D3E5685D4CB12EA2805758416A6FE08AF21D
9f7194aa57dec706ad1ef01d64788aa3b72385a1667604c0f408705c72e46880
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Jul 18, 2019 Provable Solvency Report #64 – July 2019 3,884.6845 XBT 7EB79875D7896EBBE511F20382A3F9F8F64E9BBCAEBDD34975FCF766000377F1
33d4d4d18705a0011cba593bce3cde564a41e53c48463ca0e69838e0e1208cf1
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Jun 18, 2019 Provable Solvency Report #63 – June 2019 3,855.4261 XBT 7EB79875D7896EBBE511F20382A3F9F8F64E9BBCAEBDD34975FCF766000377F1
33d4d4d18705a0011cba593bce3cde564a41e53c48463ca0e69838e0e1208cf1
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Transaction ID
f4121529e8f653b4766694c54c39f7c932d642541ff6e6613164f705f7ea1212
Name of the report Provable Solvency Report #72 – March 2020
Amount 3,668.9920 XBT
SHA-256 Hash of the report B161B2DF5BFB7BC88AC4344942DFB89808F29F3262D57714E7D9392E8841555D
Date (UTC+05:30) Mar 13, 2020
Transaction ID
8ea4cdd4a9759846c1ed7a4ba99fdd280b4ca9c69c7d3a298909549df8b12548
Name of the report Provable Solvency Report #71 – February 2020
Amount 3,682.9458 XBT
SHA-256 Hash of the report 8AB00AB9181600EC44FA6972B267337F218D1D5E10CFBB091F31B9CFB6E7F802
Date (UTC+05:30) Feb 17, 2020
Transaction ID
b18053a66d1f0577231662596059f39e0bedaaa7fd42942a51e7e1c65a19c090
Name of the report Provable Solvency Report #70 – January 2020
Amount 3,815.4219 XBT
SHA-256 Hash of the report 1fa6c926cfda1639cd6d32e56c8002b83ca4b5eefc2cf4de4ea885bd0a3277bd
Date (UTC+05:30) Jan 20, 2020
Transaction ID
2129f845fb83b8ede7fbe35da5cb5fe8447f372aee4af2ec97a22dff7a615ef6
Name of the report Provable Solvency Report #69 – December 2019
Amount 3,778.6544 XBT
SHA-256 Hash of the report EAA1319D7706E3F02E74635E8F0D067B53E9112FDB35E53CA28CF7457C30B10F
Date (UTC+05:30) Dec 11, 2019
Transaction ID
35c90fa16acd63500f3a6c06ced2547d2f020450fa5fa2e87e3a9bee5773835c
Name of the report Provable Solvency Report #68 – November 2019
Amount 3,961.8415 XBT
SHA-256 Hash of the report 766332ADFED1E39AC1FE2A2FB4196D7221C46385635F1E95AE41E353359F3462
Date (UTC+05:30) Nov 14, 2019
Transaction ID
c354df2e5d6a7c8fc77b28dfbbcaf70dc6beae755bbdeb877d2785b2343208d6
Name of the report Provable Solvency Report #67 – October 2019
Amount 3,908.6071 XBT
SHA-256 Hash of the report D416EBDE74A254F4E6DA2828C2DAFDDB5DC036C69AD7114ABF54F57DD1B1686D
Date (UTC+05:30) Oct 24, 2019
Transaction ID
737282fa27d66208b53541a78b7c9a31c8e7bd7a8d52ad87de2498421ce0ea95
Name of the report Provable Solvency Report #66 – September 2019
Amount 3,907.8566 XBT
SHA-256 Hash of the report 0F7C866DC215B965067F7E01828696216F19141CA11638AD21C7272E1879404C
Date (UTC+05:30) Sep 30, 2019
Transaction ID
9f7194aa57dec706ad1ef01d64788aa3b72385a1667604c0f408705c72e46880
Name of the report Provable Solvency Report #65 – August 2019
Amount 3,870.0066 XBT
SHA-256 Hash of the report AF5789B7B50A7B0D9B4CFE5FE4F2D3E5685D4CB12EA2805758416A6FE08AF21D
Date (UTC+05:30) Aug 9, 2019
Transaction ID
33d4d4d18705a0011cba593bce3cde564a41e53c48463ca0e69838e0e1208cf1
Name of the report Provable Solvency Report #64 – July 2019
Amount 3,884.6845 XBT
SHA-256 Hash of the report 7EB79875D7896EBBE511F20382A3F9F8F64E9BBCAEBDD34975FCF766000377F1
Date (UTC+05:30) Jul 18, 2019
Transaction ID
33d4d4d18705a0011cba593bce3cde564a41e53c48463ca0e69838e0e1208cf1
Name of the report Provable Solvency Report #63 – June 2019
Amount 3,855.4261 XBT
SHA-256 Hash of the report 7EB79875D7896EBBE511F20382A3F9F8F64E9BBCAEBDD34975FCF766000377F1
Date (UTC+05:30) Jun 18, 2019

Instructions For Validating A Solvency Report:

  1. Open the Provable Solvency Report file by clicking on the name of the report.
  2. Go to https://passwordsgenerator.net/sha256-hash-generator/ or to your SHA256sum calculating application.
  3. 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.

  4. Go to: The Bitcoin block explorer https://live.blockcypher.com/btc/ and search for the Transaction ID of the report.
  5. 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 block chain.

Instructions For Finding Your Account Balance Within A Solvency Report

The provable solvency report consists of balances attached to SHA-1 hashes for each customer account.

  1. You can generate your SHA-1 hash by using your local SHA1sum application or online calculators such as https://xorbin.com/tools/sha1-hash-calculator.
  2. 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.

    Example :

    Timestamp: 1579519XXX

    API authentication cookie (API Key): 9BTa7M0Z/Mrk6tFMJwXXXXXXXXXX

    Input to calculate you SHA1 Hash is: 1579519XXX9BTa7M0Z/Mrk6tFMJwXXXXXXXXXX

  3. Find the resulting hash in the solvency report. Your balance is shown on that line in satoshi units. 1 bitcoin = 100 000 000 satoshis. For your convenience, here is a link to a bitcoin unit converter: http://www.satoshi.24ex.com.

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.