| Riot Blockchain, Inc.                                         |
|---------------------------------------------------------------|
| (Exact name of registrant as specified in its charter)   |
| Nevada                                                        | 84-1553387 |
| (State or other jurisdiction ofincorporation or organization) | (I.R.S. Employer Identification No.) |
|                                                          |
| 202 6th Street, Suite 401 Castle Rock, CO  80104    |
| (Address of principal executive offices) (Zip Code)           |
|  (303) 794-2000                                          |
| (Registrant's telephone number, including area code)          |
| Large Accelerated Filer                         | ☐  |                                                    | Accelerated Filer                       | ☐ |
|-------------------------------------------------|---------------|---------------------------------------------------------|---------------------------------------------------|---------|
| Non-accelerated Filer                           | ☐       |   (Do not check if smaller reporting company) | Smaller Reporting Company     | ☒ |
| Emerging growth company     | ☐       |                                                    |                                              |    |

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|  | i. | Part I, Item 1 – Notes to the Condensed Interim Consolidated Financial Statements (unaudited), Note 2: Basis of presentation, summary of significant accounting policies and recent accounting pronouncements; |
|--|----|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|  | ii. | Part I, Item 2 – Management’s Discussion and Analysis of Results of Operations and Financial Condition, Management’s plans and basis of presentation; Digital Currencies Translations and Remeasurements; |
|--|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|  | iii. | Part I, Item 2 – Management’s Discussion and Analysis of Results of Operations and Financial Condition, Management’s plans and basis of presentation: Development  of a U.S.-Based Digital Currency Exchange; |
|--|------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|  | iv. | Part I, Item 2 – Management’s Discussion and Analysis of Results of Operations and Financial Condition, Results of Operations: Liquidity and Capital Resources; |
|--|-----|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

|  | v. | Part II, Item 1A – Risk Factors; and, |
|--|----|---------------------------------------------|

|  | vi. | Part II, Item 6 – Exhibits. |
|--|-----|-----------------------------------|

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|                                          |                                                                                                                                     |   |    |   | Page     |   |
|-----------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------|--------|---------|--------|----------|--------|
| PART I - Financial Information      |
|                                          |                                                                                                                                     |   |
|                                          | Explanatory Note                                                                                                                         |        |  i |   |
|                                          |                                                                                                                                     |   |
|                                          | Table of Contents                                                                                                                        |   |    |   |  ii |   |
|                                          |                                                                                                                                     |   |    |   |     |   |
| Item 1.                                       | Condensed Interim Consolidated Financial Statements                                                                                      |   |    |   |     |   |
|                                          |                                                                                                                                     |   |
|                                          | Condensed Consolidated Balance Sheets as of September 30, 2018 (Interim) and December 31, 2017 (unaudited)                          |   |    |   | 2        |   |
|                                          |                                                                                                                                     |   |
|                                          | Condensed Interim Consolidated Statements of Operations for the Three and Nine Months Ended September 30, 2018 and 2017 (unaudited) |   |    |   | 3        |   |
|                                          |                                                                                                                                     |   |    |   |
|                                          | Condensed Interim Consolidated Statement of Stockholders’ Equity for the Nine Months Ended September 30, 2018 (unaudited)          |   |    |   | 4        |   |
|                                          |                                                                                                                                     |   |
|                                          | Condensed Interim Consolidated Statements of Cash Flows for the Nine Months Ended September 30, 2018 and 2017 (unaudited)                |   |    |   | 5        |   |
|                                          |                                                                                                                                     |   |
|                                          | Notes to the Condensed Interim Consolidated Financial Statements (unaudited)                                                             |   |    |   | 6        |   |
|                                          |                                                                                                                                     |   |
| Item 2.                                       | Management's Discussion and Analysis of Financial Condition and Results of Operations                                                    |   |    |   | 25       |   |
|                                          |                                                                                                                                     |   |
| Item 3.                                       | Quantitative and Qualitative Disclosures About Market Risk                                                                               |   |    |   | 35       |   |
|                                          |                                                                                                                                     |   |
| Item 4.                                       | Controls and Procedures                                                                                                                  |   |    |   | 35       |   |
|                                          |                                                                                                                                     |   |
| PART II - Other Information    |
|                                          |                                                                                                                                     |   |
| Item 1.                                       | Legal Proceedings                                                                                                                        |   |    |   | 36       |   |
|                                          |                                                                                                                                     |   |
| Item 1A.                                      | Risk Factors                                                                                                                             |   |    |   | 36       |   |
|                                          |                                                                                                                                     |   |
| Item 2.                                       | Unregistered Sales of Equity Securities and Use of Proceeds                                                                              |   |    |   | 40       |   |
|                                          |                                                                                                                                     |   |    |   |     |   |
| Item 3.                                       | Defaults Upon Senior Securities                                                                                                          |   |    |   | 40       |   |
|                                          |                                                                                                                                     |   |    |   |     |   |
| Item 4.                                       | Mine Safety Disclosures                                                                                                                  |   |    |   | 40       |   |
|                                          |                                                                                                                                     |   |    |   |     |   |
| Item 5.                                       | Other Information                                                                                                                        |   |    |   | 40       |   |
|                                          |                                                                                                                                     |   |    |   |     |   |
| Item 6.                                       | Exhibits                                                                                                                                 |   |    |   | 41       |   |
|                                          |                                                                                                                                     |   |
|                                          | Signatures                                                                                                                               |   |    |   | 42       |   |

----

|   | · | our history of operating losses and our ability to achieve or sustain profitability; |
|--------|--------|--------------------------------------------------------------------------------------|
|   | · | our recent shift to an entirely new business and our ability to succeed in this new business; |
|--------|--------|-----------------------------------------------------------------------------------------------|
|   | · | intense competition; |
|--------|--------|----------------------|
|   | · | our ability to raise additional capital needed to finance our business; |
|--------|--------|-------------------------------------------------------------------------|
|   | · | general economic conditions in the U.S. and globally; |
|--------|--------|-------------------------------------------------------|
|   | · | our ability to maintain the value and reputation of our brand; |
|--------|--------|----------------------------------------------------------------|
|   | · | our ability to attract and retain senior management and other qualified personnel; |
|--------|--------|------------------------------------------------------------------------------------|
|   | · | cryptocurrency-related risks, including regulatory changes or actions and uncertainty regarding acceptance and/or widespread use of virtual currency; |
|--------|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | · | risks relating to our virtual currency mining operations, including among others risks associated with the need for significant electrical power and cybersecurity risks; |
|--------|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | · | our dependence in large part upon the value of virtual currencies, especially Bitcoin, which have historically been subject to significant volatility in their market prices; |
|--------|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | · | risks relating to our planned establishment of a virtual currency exchange, including, among others, regulatory requirements and challenges and security threats; |
|--------|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   | · | our ability to protect our intellectual property rights; |
|--------|--------|----------------------------------------------------------|
|   | · | volatility in the trading price of our common stock; |
|--------|--------|------------------------------------------------------|
|   | · | our ability to maintain the Nasdaq listing of our common stock; |
|--------|--------|-----------------------------------------------------------------|
|   | · | our investments in other virtual currency and blockchain focused companies may not be realizable; |
|--------|--------|---------------------------------------------------------------------------------------------------|
|   | · | legal proceedings to which we are subject, or associated with, including actions by private plaintiffs and the SEC; and |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------|
|   | · | the risks, uncertainties discussed in "Part I. Item 1A. Risk Factors" included in this Quarterly Report and our Quarterly Reports on Form 10-Q for the periods ended March 31, 2018, June 30, 2018, and as originally filed on Form 10-Q for the period ended September 30, 2018, our Annual Report on Form 10-K for the year ended December 31, 2017, as amended, and any other reports filed or which will be filed by the Company. |
|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

----

|                                                                                                                                                                               |   | September 30, 2018 |         |   | December 31, 2017 |   |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|--------------------|--------------|--------|-------------------|--------|
| ASSETS                                                                                                                                                                             |   | (Interim)          |         |   |              |   |
| Current assets                                                                                                                                                                     |   |               |         |   |              |   |
| Cash and cash equivalents                                                                                                                                                          |   | $                  | 1,607,085    |   |              | $      | 41,651,965 |   |
| Prepaid contracts                                                                                                                                                                  |   |               | 1,584,699    |   |              |   | - |   |
| Prepaid expenses and other current assets                                                                                                                                          |   |               | 1,955,819    |   |              |   | 538,812 |   |
| Digital currencies                                                                                                                                                                 |   |               | 1,715,309    |   |              |   | 200,164 |   |
| Current assets of discontinued operations                                                                                                                                          |   |               | -            |   |              |   | 44 |   |
| Total current assets                                                                                                                                                               |   |               | 6,862,912    |   |              |   | 42,390,985 |   |
| Property and equipment, net                                                                                                                                                        |   |               | 4,853,744    |   |              |   | 4,294,166 |   |
| Intangible rights acquired                                                                                                                                                         |   |               | 1,985,587    |   |              |   | 754,244 |   |
| Long-term investments                                                                                                                                                              |   |               | 9,412,726    |   |              |   | 3,000,000 |   |
| Security deposits                                                                                                                                                                  |   |               | 703,275      |   |              |   | - |   |
| Other long-term assets, net:                                                                                                                                                       |   |               |         |   |              |   |   |   |
| Patents, net                                                                                                                                                                       |   |               | 498,670      |   |              |   | 509,649 |   |
| Goodwill                                                                                                                                                                           |   |               | 1,186,496    |   |              |   | 1,186,496 |   |
| Convertible note                                                                                                                                                                   |   |               | 200,000      |   |              |   | 200,000 |   |
| Total assets                                                                                                                                                                       |   | $                  | 25,703,410   |   |              | $      | 52,335,540 |   |
|                                                                                                                                                                               |   |               |         |   |              |   |   |   |
| LIABILITIES AND STOCKHOLDERS' EQUITY                                                                                                                                               |   |               |         |   |              |   |   |   |
| Current liabilities                                                                                                                                                                |   |               |         |   |              |   |   |   |
| Accounts payable                                                                                                                                                                   |   | $                  | 3,393,970    |   |              | $      | 410,029 |   |
| Accrued expenses                                                                                                                                                                   |   |               | 1,487,996    |   |              |   | 216,883 |   |
| Deferred purchase price - BMSS                                                                                                                                                     |   |               | 1,350,000    |   |              |   | - |   |
| Demand note                                                                                                                                                                        |   |               | 1,696,083    |   |              |   | - |   |
| Notes and other obligations, current                                                                                                                                               |   |               | -            |   |              |   | 135,574 |   |
| Deferred revenue, current portion                                                                                                                                                  |   |               | 96,698       |   |              |   | 96,698 |   |
| Current liabilities of discontinued operations                                                                                                                                     |   |               | 16,340       |   |              |   | 181,340 |   |
| Total current liabilities                                                                                                                                                          |   |               | 8,041,087    |   |              |   | 1,040,524 |   |
|                                                                                                                                                                               |   |               |         |   |              |   |   |   |
| Deferred revenue, less current portion                                                                                                                                             |   |               | 896,094      |   |              |   | 968,617 |   |
| Deferred income tax liability                                                                                                                                                      |   |               | 234,709      |   |              |   | 699,000 |   |
| Total liabilities                                                                                                                                                                  |   |               | 9,171,890    |   |              |   | 2,708,141 |   |
|                                                                                                                                                                               |   |               |         |   |              |   |   |   |
| Commitments and contingencies                                                                                                                                                      |   |               |         |   |              |   |   |   |
|                                                                                                                                                                               |   |               |         |   |              |   |   |   |
| Stockholders' equity                                                                                                                                                               |   |               |         |   |              |   |   |   |
| Preferred stock, no par value, 15,000,000 share authorized:                                                                                                                        |   |               |         |   |              |   |   |   |
| 2% Series A Convertible stock shares authorized 2,000,000 and no shares issued and outstanding as of September 30, 2018 and December 31, 2017, respectively                        |   |               | -            |   |              |   | - |   |
| 0% Series B Convertible stock, 1,750,001 shares authorized;  104,946 and 1,458,001 shares issued and outstanding as of September 30, 2018 and December 31, 2017, respectively |   |               | 555,109      |   |              |   | 7,745,266 |   |
| Common stock, no par value; 170,000,000 shares authorized; 14,293,702 and 11,622,112 shares outstanding as of September 30, 2018 and December 31, 2017, respectively               |   |               | 201,793,176  |   |              |   | 180,387,518 |   |
| Accumulated deficit                                                                                                                                                                |   |               | (185,796,070 | )      |              |   | (139,263,480 | ) |
| Total Riot Blockchain stockholders' equity                                                                                                                                         |   |               | 16,552,215   |   |              |   | 48,869,304 |   |
| Non-controlling interest                                                                                                                                                           |   |               | (20,695      | )      |              |   | 758,095 |   |
| Total stockholders' equity                                                                                                                                                         |   |               | 16,531,520   |   |              |   | 49,627,399 |   |
| Total liabilities and stockholders' equity                                                                                                                                         |   | $                  | 25,703,410   |   |              | $      | 52,335,540 |   |

----

|                                                                                       |   | Three Months Ended September 30, |       |   | Nine Months Ended September 30, |   |
|--------------------------------------------------------------------------------------------|--------|----------------------------------|------------|--------|---------------------------------|--------|
|                                                                                       |   | 2018                             |       |   | 2017                            |   |   | 2018 |   |   | 2017 |   |
|  Revenue:                                                                             |   |                             |       |   |                            |   |   |   |   |   |   |   |
|  Revenue - Cryptocurrency mining                                                      |   | $                                | 2,342,508  |   |                            | $      | - |   |   | $ | 6,087,405 |   |   | $ | - |   |
|  Other revenue - fee                                                                  |   |                             | 24,175     |   |                            |   | 24,175 |   |   |   | 72,524 |   |   |   | 72,524 |   |
|  Total Revenue                                                                        |   |                             | 2,366,683  |   |                            |   | 24,175 |   |   |   | 6,159,929 |   |   |   | 72,524 |   |
|                                                                                       |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Costs and expenses:                                                                  |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Cost of revenues  (exclusive of depreciation and amortization shown below) |   |                             | 2,031,885  |   |                            |   | - |   |   |   | 3,933,381 |   |   |   | - |   |
|  Selling, general and administrative                                                  |   |                             | 5,970,411  |   |                            |   | 596,544 |   |   |   | 16,299,491 |   |   |   | 2,691,286 |   |
|  Research and development                                                             |   |                             | -          |   |                            |   | - |   |   |   | 14,532 |   |   |   | 10,034 |   |
|  Depreciation and amortization                                                        |   |                             | 658,338    |   |                            |   | 18,132 |   |   |   | 5,685,664 |   |   |   | 55,899 |   |
|  Impairment of property, plant & equipment                                        |   |                             | -          |   |                            |   | - |   |   |   | 26,858,023 |   |   |   | - |   |
|  Impairment of digital currencies                                                     |   |                             | 163,837    |   |                            |   | - |   |   |   | 3,374,976 |   |   |   | - |   |
|  Total costs and expenses                                                             |   |                             | 8,824,471  |   |                            |   | 614,676 |   |   |   | 56,166,067 |   |   |   | 2,757,219 |   |
|  Operating loss from continuing operations                                            |   |                             | (6,457,788 | )      |                            |   | (590,501 | ) |   |   | (50,006,138 | ) |   |   | (2,684,695 | ) |
|                                                                                       |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Other income (expense)                                                               |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Interest expense                                                                     |   |                             | (21,836    | )      |                            |   | (4,773,397 | ) |   |   | (37,998 | ) |   |   | (4,802,296 | ) |
|  Realized gain on sale of digital currencies                                          |   |                             | 219,247    |   |                            |   | - |   |   |   | 451,341 |   |   |   | - |   |
|  Other expenses                                                                       |   |                             | (1,746     | )      |                            |   | - |   |   |   | (1,358,924 | ) |   |   | - |   |
|  Loss on extinguishment of BMSS payable                                               |   |                             | (265,500   | )      |                            |   | - |   |   |   | (265,500 | ) |   |   | - |   |
|  Investment income                                                                    |   |                             | 683        |   |                            |   | 30,903 |   |   |   | 69,959 |   |   |   | 83,247 |   |
|  Total other expense                                                                  |   |                             | (69,152    | )      |                            |   | (4,742,494 | ) |   |   | (1,141,122 | ) |   |   | (4,719,049 | ) |
|                                                                                       |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Loss from continuing operations before income taxes                                  |   |                             | (6,526,940 | )      |                            |   | (5,332,995 | ) |   |   | (51,147,260 | ) |   |   | (7,403,744 | ) |
|                                                                                       |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Deferred income tax benefit                                                          |   |                             | -          |   |                            |   | - |   |   |   | 3,525,000 |   |   |   | - |   |
|                                                                                       |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Loss from continuing operations                                                      |   |                             | (6,526,940 | )      |                            |   | (5,332,995 | ) |   |   | (47,622,260 | ) |   |   | (7,403,744 | ) |
|                                                                                       |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Discontinued operations                                                              |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Income (loss) from operations                                                        |   |                             | -          |   |                            |   | 30,922 |   |   |   | 96,132 |   |   |   | (944,557 | ) |
|  Escrow forfeiture gain                                                               |   |                             | -          |   |                            |   | - |   |   |   | - |   |   |   | 134,812 |   |
|  Impairment loss                                                                      |   |                             | -          |   |                            |   | - |   |   |   | - |   |   |   | (2,754,131 | ) |
|  Income (loss) from discontinued operations                                           |   |                             | -          |   |                            |   | 30,922 |   |   |   | 96,132 |   |   |   | (3,563,876 | ) |
|                                                                                       |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Net loss                                                                             |   |                             | (6,526,940 | )      |                            |   | (5,302,073 | ) |   |   | (47,526,128 | ) |   |   | (10,967,620 | ) |
|                                                                                       |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Net loss attributable to non-controlling interest                                    |   |                             | 296,982    |   |                            |   | - |   |   |   | 929,158 |   |   |   | - |   |
|                                                                                       |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
|  Net loss attributable to Riot Blockchain                                             |   | $                                | (6,229,958 | )      |                            | $      | (5,302,073 | ) |   | $ | (46,596,970 | ) |   | $ | (10,967,620 | ) |
|                                                                                       |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
| Basic and diluted net loss per share:                                                      |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
| Continuing operations attributable to Riot Blockchain                                      |   | $                                | (0.46      | )      |                            | $      | (0.99 | ) |   | $ | (3.57 | ) |   | $ | (1.47 | ) |
| Discontinued operations attributable to Riot Blockchain                                    |   |                             | -          |   |                            |   | 0.01 |   |   |   | 0.01 |   |   |   | (0.71 | ) |
| Net loss per share                                                                         |   | $                                | (0.46      | )      |                            | $      | (0.98 | ) |   | $ | (3.56 | ) |   | $ | (2.18 | ) |
|                                                                                       |   |                             |       |   |                            |   |   |   |   |   |   |   |   |   |   |   |
| Basic and diluted weighted average number of shares outstanding                            |   |                             | 14,197,763 |   |                            |   | 5,401,552 |   |   |   | 13,340,122 |   |   |   | 5,037,764 |   |

----

|                                                         |   |            |       |   |         |   |       |   |   |   |        |   |   |                         |        |   | Total           |   |         |               |   |   |        |   |
|--------------------------------------------------------------|--------|-----------------|------------|--------|--------------|--------|------------|--------|--------|--------|-------------|--------|--------|------------------------------|-------------|--------|-----------------|--------|--------------|--------------------|--------|--------|-------------|--------|
|                                                         |   | Preferred Stock |       |   | Common Stock |   |       |   |   |   | Accumulated |   |   | Riot Blockchainstockholders' |        |   | Non-controlling |   |         | Totalstockholders' |   |
|                                                         |   | Shares          |       |   | Amount       |   |       | Shares |   |   | Amount      |   |   | deficit                      |        |   | equity          |   |         | interest           |   |   | equity      |   |
| Balance as of December 31, 2017                              |   |            | 1,458,001  |   |         | $      | 7,745,266  |   |   |   | 11,622,112  |   |   | $                            | 180,387,518 |   |            | $      | (139,263,480 | )                  |   | $      | 48,869,304  |   |   | $ | 758,095 |   |   | $ | 49,627,399 |   |
| Common stock issued for asset purchase - Prive               |   |            | -          |   |         |   | -          |   |   |   | 800,000     |   |   |                         | 8,480,000   |   |            |   | -            |               |   |   | 8,480,000   |   |   |   | - |   |   |   | 8,480,000 |   |
| Common stock escrow shares issued for asset purchase - Prive |   |            | -          |   |         |   | -          |   |   |   | 200,000     |   |   |                         | -           |   |            |   | -            |               |   |   | -           |   |   |   | - |   |   |   | - |   |
| Preferred stock converted to Common stock                    |   |            | (1,353,505 | )      |         |   | (7,190,157 | )      |   |   | 1,353,505   |   |   |                         | 7,190,157   |   |            |   | -            |               |   |   | -           |   |   |   | - |   |   |   | - |   |
| Exercise of warrants                                         |   |            | -          |   |         |   | -          |   |   |   | 100,000     |   |   |                         | 350,000     |   |            |   | -            |               |   |   | 350,000     |   |   |   | - |   |   |   | 350,000 |   |
| Stock-based compensation                                     |   |            | -          |   |         |   | -          |   |   |   | -           |   |   |                         | 4,147,190   |   |            |   | -            |               |   |   | 4,147,190   |   |   |   | - |   |   |   | 4,147,190 |   |
| Exercise of stock options                                    |   |            | -          |   |         |   | -          |   |   |   | 19,533      |   |   |                         | 78,522      |   |            |   | -            |               |   |   | 78,522      |   |   |   | - |   |   |   | 78,522 |   |
| Common stock issued for services                             |   |            | -          |   |         |   | -          |   |   |   | 20,754      |   |   |                         | 277,940     |   |            |   | -            |               |   |   | 277,940     |   |   |   | - |   |   |   | 277,940 |   |
| Refund of escrow dividend                                    |   |            | -          |   |         |   | -          |   |   |   | -           |   |   |                         | -           |   |            |   | 64,380       |               |   |   | 64,380      |   |   |   | - |   |   |   | 64,380 |   |
| Sale of Riot shares held by 1172767 B.C. Ltd.                |   |            | -          |   |         |   | -          |   |   |   | -           |   |   |                         | 505,729     |   |            |   | -            |               |   |   | 505,729     |   |   |   | - |   |   |   | 505,729 |   |
| Stock issued for the extinguishment of the BMSS payable      |   |            | -          |   |         |   | -          |   |   |   | 50,000      |   |   |                         | 265,500     |   |            |   | -            |               |   |   | 265,500     |   |   |   | - |   |   |   | 265,500 |   |
| Cashless exercise of stock purchase warrants                 |   |            | -          |   |         |   | -          |   |   |   | 3,215       |   |   |                         | -           |   |            |   | -            |               |   |   | -           |   |   |   | - |   |   |   | - |   |
| Delivery of common stock underlying restricted stock units   |   |            | -          |   |         |   | -          |   |   |   | 124,583     |   |   |                         | -           |   |            |   | -            |               |   |   | -           |   |   |   | - |   |   |   | - |   |
| Non-controlling interest - Logical Brokerage                 |   |            | -          |   |         |   | -          |   |   |   | -           |   |   |                         |        |   |            |   | -            |               |   |   | -           |   |   |   | 40,542 |   |   |   | 40,542 |   |
| Net loss attributable to non-controlling interest            |   |            | -          |   |         |   | -          |   |   |   | -           |   |   |                         | -           |   |            |   | -            |               |   |   | -           |   |   |   | (929,158 | ) |   |   | (929,158 | ) |
| Sale of common shares by 1172767 B.C. Ltd.                   |   |            | -          |   |         |   | -          |   |   |   | -           |   |   |                         | 110,620     |   |            |   | -            |               |   |   | 110,620     |   |   |   | 109,826 |   |   |   | 220,446 |   |
| Net loss                                                     |   |            | -          |   |         |   | -          |   |   |   | -           |   |   |                         | -           |   |            |   | (46,596,970  | )                  |   |   | (46,596,970 | )      |   |   | - |   |   |   | (46,596,970 | ) |
| Balance as of September 30, 2018                             |   |            | 104,496    |   |         | $      | 555,109    |   |   |   | 14,293,702  |   |   | $                            | 201,793,176 |   |            | $      | (185,796,070 | )                  |   | $      | 16,552,215  |   |   | $ | (20,695 | ) |   | $ | 16,531,520 |   |

----

|                                                                                                                            |   | Nine Months Ended September 30, |        |
|---------------------------------------------------------------------------------------------------------------------------------|--------|---------------------------------|-------------|
|                                                                                                                            |   | 2018                            |        |   | 2017 |   |
|  Cash flows from operating activities                                                                                      |   |                            |        |   |   |   |
|  Net loss                                                                                                                  |   | $                               | (47,526,128 | ) |   | $ | (10,967,620 | ) |
|  Income (loss) from discontinued operations                                                                                |   |                            | 96,132      |   |   |   | (3,563,876 | ) |
|  Loss from continuing operations                                                                                           |   |                            | (47,622,260 | ) |   |   | (7,403,744 | ) |
| Adjustments to reconcile net loss from continuing operations to net cash used in operating activities of continuing operations: |   |
|  Amortization of discount on convertible debt                                                                              |   |                            | -           |   |   |   | 4,750,000 |   |
|  Stock-based compensation                                                                                                  |   |                            | 4,147,189   |   |   |   | 379,622 |   |
|  Depreciation and amortization                                                                                             |   |                            | 5,685,664   |   |   |   | 55,899 |   |
|  Deferred income tax benefit                                                                                               |   |                            | (3,525,000  | ) |   |   | - |   |
|  Amortization of license fee revenue                                                                                       |   |                            | (72,523     | ) |   |   | (72,524 | ) |
|  Common stock issued for services                                                                                          |   |                            | 277,940     |   |   |   | - |   |
|  Stock issued for the extinguishment of the BMSS payable                                                                   |   |                            | 265,500     |   |   |   | - |   |
|  Property, plant & equipment impairment charge                                                                         |   |                            | 26,858,023  |   |   |   | - |   |
|  Impairment of digital currencies                                                                                          |   |                            | 3,374,976   |   |   |   | - |   |
|  Realized gain on sale of digital currencies                                                                               |   |                            | (451,341    | ) |   |   | - |   |
|  Changes in assets and liabilities:                                                                                        |   |                            |        |   |   |   |   |   |
|  Prepaid contracts                                                                                                         |   |                            | (1,584,699  | ) |   |   | - |   |
|  Prepaid expenses and other current assets                                                                                 |   |                            | (1,417,007  | ) |   |   | 192,071 |   |
|  Digital currencies - Mining                                                                                               |   |                            | (6,087,405  | ) |   |   | - |   |
|  Accounts payable                                                                                                          |   |                            | 2,983,941   |   |   |   | (4,997 | ) |
|  Accrued expenses                                                                                                          |   |                            | 1,271,114   |   |   |   | (129,875 | ) |
|  Net cash used in operating activities of continuing operations                                                            |   |                            | (15,895,888 | ) |   |   | (2,233,548 | ) |
|  Net cash used in operating activities of discontinued operations                                                          |   |                            | (68,824     | ) |   |   | (930,323 | ) |
|  Net cash used in operating activities                                                                                     |   |                            | (15,964,712 | ) |   |   | (3,163,871 | ) |
|                                                                                                                            |   |                            |        |   |   |   |   |   |
|  Cash flows from investing activities - continuing operations:                                                             |   |                            |        |   |   |   |   |   |
|  Purchase of digital currencies                                                                                            |   |                            | (5,722,545  | ) |   |   | - |   |
|  Proceeds from sale of digital currencies                                                                                  |   |                            | 7,371,172   |   |   |   | - |   |
|  Purchases of property and equipment                                                                                       |   |                            | (20,311,436 | ) |   |   | - |   |
|  Purchases of other investments                                                                                            |   |                            | (6,412,726  | ) |   |   | - |   |
|  Proceeds from sale of short-term investments                                                                              |   |                            | -           |   |   |   | 7,506,761 |   |
|  Security deposits                                                                                                         |   |                            | (703,275    | ) |   |   | - |   |
|  Purchases of patent and trademark application costs                                                                       |   |                            | (32,850     | ) |   |   | (14,255 | ) |
|  Investment in Coinsquare                                                                                                  |   |                            | -           |   |   |   | (3,000,000 | ) |
|  Investment in Logical Brokerage, net of cash acquired                                                                     |   |                            | (516,918    | ) |   |   | - |   |
|  Purchase of developed technology by 1172767                                                                               |   |                            | (531,176    | ) |   |   | - |   |
|  Net cash (used in) provided by investing activities of continuing operations                                              |   |                            | (26,859,754 | ) |   |   | 4,492,506 |   |
|  Net cash provided by investing activities of discontinued operations                                                      |   |                            | -           |   |   |   | 4,004 |   |
|  Net cash (used in ) provided by investing activities                                                                      |   |                            | (26,859,754 | ) |   |   | 4,496,510 |   |
|                                                                                                                            |   |                            |        |   |   |   |   |   |
|  Cash flows from financing activities - continuing operations:                                                             |   |                            |        |   |   |   |   |   |
|  Proceeds from issuance of convertible notes                                                                               |   |                            | -           |   |   |   | 4,750,000 |   |
|  Proceeds from issuance of common stock, net of $336,491 in offering expenses                                              |   |                            | -           |   |   |   | 1,913,509 |   |
|  Redemption of equity rights                                                                                               |   |                            | -           |   |   |   | (291,995 | ) |
|  Proceeds from notes payable                                                                                               |   |                            | 1,696,083   |   |   |   | - |   |
|  Repayment of notes payable and other obligations                                                                          |   |                            | (135,574    | ) |   |   | (192,539 | ) |
|  Proceeds from exercise of warrants                                                                                        |   |                            | 350,000     |   |   |   | - |   |
|  Proceeds from exercise of stock options                                                                                   |   |                            | 78,522      |   |   |   | 98,260 |   |
|  Proceeds from sale of Riot shares held by 1172767                                                                         |   |                            | 505,729     |   |   |   | - |   |
|  Proceeds from common shares sold by 1172767, net                                                                          |   |                            | 220,446     |   |   |   | - |   |
|  Refund of escrow dividend                                                                                                 |   |                            | 64,380      |   |   |   | - |   |
|  Net cash provided by financing activities  of continuing operations                                                  |   |                            | 2,779,586   |   |   |   | 6,277,235 |   |
|                                                                                                                            |   |                            |        |   |   |   |   |   |
|  Net increase (decrease) in cash and cash equivalents                                                                 |   |                            | (40,044,880 | ) |   |   | 7,609,874 |   |
|  Cash and cash equivalents at beginning of period                                                                          |   |                            | 41,651,965  |   |   |   | 5,529,848 |   |
|  Cash and cash equivalents at end of period                                                                                |   | $                               | 1,607,085   |   |   | $ | 13,139,722 |   |
|                                                                                                                            |   |                            |        |   |   |   |   |   |
|  Supplemental disclosure of cash flow information:                                                                         |   |                            |        |   |   |   |   |   |
|  Cash paid for interest                                                                                                    |   | $                               | 6,585       |   |   | $ | 1,571 |   |
|                                                                                                                            |   |                            |        |   |   |   |   |   |
| Supplemental disclosure of noncash investing and financing activities:                                                          |   |                            |        |   |   |
| Conversion of notes payable and accrued interest to preferred stock                                                             |   | $                               | -           |   |   | $ | 4,798,671 |   |
| Value of shares issued for Prive asset acquisition                                                                              |   | $                               | 8,480,000   |   |   | $ | - |   |
| Conversion of Preferred stock to Common stock                                                                                   |   | $                               | 7,190,157   |   |   | $ | - |   |
| Deferred purchase price for BMSS                                                                                                |   | $                               | 1,350,000   |   |   | $ | - |   |

----

----

|   | • | continuing expansion of cryptocurrency mining operations;                                                       |
|--------|---------|-----------------------------------------------------------------------------------------------------------------|
|   | • | continuing to evaluate opportunities for acquisitions in the blockchain and digital currency sector;  |
|   | • | establishing a virtual currency exchange;                                                                       |
|   | • | exploring other possible strategic options and financing opportunities available to the Company;                |
|   | • | evaluating options to monetize, partner or license the Company's assets; and                                    |
|   | • | continuing to implement cost control initiatives to conserve cash.                                              |

----

----

----

|                                                                 |   | September 30, 2018 |       |
|----------------------------------------------------------------------|--------|--------------------|------------|
| Deferred tax liability as of January 1, 2018                         |   | $                  | 699,000    |   |
| Deferred tax liability recorded on the Prive acquisition             |   |               | 2,918,000  |   |
| Deferred tax liability recorded on the Logical Brokerage acquisition |   |               | 142,709    |   |
| Impairment and depreciation on Prive and Kairos acquisitions         |   |               | (3,525,000 | ) |
| Deferred tax liability as of September 30, 2018                      |   | $                  | 234,709    |   |

|                              |   | September 30,   |      |
|-----------------------------------|--------|---------------------------|-----------|
|                              |   | 2018                      |      |   | 2017 |   |
| Warrants to purchase common stock |   |                      | 1,671,113 |   |   |   | 1,257,929 |   |
| Options to purchase common stock  |   |                      | 162,000   |   |   |   | 106,333 |   |
| Unvested restricted stock units   |   |                      | 665,188   |   |   |   | 157,000 |   |
| Escrow shares of common stock     |   |                      | 200,000   |   |   |   | - |   |
| Convertible preferred shares      |   |                      | 104,496   |   |   |   | - |   |
|                              |   |                      | 2,802,797 |   |   |   | 1,521,262 |   |

----

----

----

|                       |   | September 30, 2018 |       |
|----------------------------|--------|--------------------|------------|
| Cash consideration         |   | $                  | 11,000,000 |   |
| Fair value of common stock |   |               | 8,480,000  |   |
| Deferred tax liability     |   |               | 2,918,000  |   |
| Other expenses             |   |               | 2,000      |   |
|                       |   | $                  | 22,400,000 |   |

----

|                       |   | September 30, 2018 |    |
|----------------------------|--------|--------------------|---------|
| Cash, net of cash acquired |   | $                  | 500,000 |   |
| Deferred tax liability     |   |               | 142,709 |   |
| Non-controlling interest   |   |               | 40,541  |   |
| Legal expense              |   |               | 16,918  |   |
|                       |   | $                  | 700,168 |   |

----

|                    |   | Three Months EndedSeptember 30, 2018(unaudited) |   |   | Nine Months EndedSeptember 30, 2018(unaudited) |   |
|-------------------------|--------|-------------------------------------------------|--------|--------|------------------------------------------------|--------|
| Prive miners            |   | $                                               | -      |   |                                           | $      | 18,264,759 |   |
| BMSS miners             |   |                                            | -      |   |                                           |   | 5,796,179 |   |
| Kairos miners           |   |                                            | -      |   |                                           |   | 2,797,085 |   |
| Total impairment charge |   | $                                               | -      |   |                                           | $      | 26,858,023 |   |

|                                       |   | September 30, 2018(unaudited) |       |   | December 31, 2017 |   |
|--------------------------------------------|--------|-------------------------------|------------|--------|-------------------|--------|
| Cryptocurrency machines, net of impairment |   |                          | 4,118,675  |   |              | $      | 4,700,575 |   |
| Leasehold improvements                     |   |                          | 2,069,259  |   |              |   | - |   |
| Office and computer equipment              |   |                          | 92,840     |   |              |   | 61,670 |   |
| Total cost of property and equipment       |   |                          | 6,280,774  |   |              |   | 4,762,245 |   |
| Less accumulated depreciation              |   |                          | (1,427,030 | )      |              |   | (468,079 | ) |
| Property and equipment, net                |   | $                             | 4,853,744  |   |              | $      | 4,294,166 |   |

----

| Cost:                                   |   | September 30, 2018(unaudited) |      |   | December 31, 2017 |   |
|-----------------------------------------|--------|-------------------------------|-----------|--------|-------------------|--------|
|   Patents                     |   | $                             | 1,092,681 |   |              | $      | 1,059,832 |   |
|   Goodwill                    |   |                          | 1,186,496 |   |              |   | 1,186,496 |   |
|   Convertible note investment |   |                          | 200,000   |   |              |   | 200,000 |   |
| Total                                   |   |                          | 2,479,177 |   |              |   | 2,446,328 |   |
|                                    |   |                          |      |   |              |   |   |   |
| Accumulated amortization:               |   |                          |      |   |              |   |   |   |
|   Patents                     |   |                          | (594,011  | )      |              |   | (550,183 | ) |
| Total                                   |   |                          | (594,011  | )      |              |   | (550,183 | ) |
|                                    |   |                          |      |   |              |   |   |   |
| Net other long-term assets              |   | $                             | 1,885,166 |   |              | $      | 1,896,145 |   |

|                               |   | September 30, 2018 |    |
|------------------------------------|--------|--------------------|---------|
| Patents at January 1, 2018, net    |   | $                  | 509,649 |   |
| Additions                          |   |               | 32,849  |   |
| Less: amortization expense         |   |               | 43,828  |   |
| Patents at September 30, 2018, net |   | $                  | 498,670 |   |

| For the year ended December 31, |   | Estimated amortization expense |      |
|---------------------------------|--------|--------------------------------|-----------|
| 2018                            |   | $                              | (492,183  | ) |
| 2019                            |   | $                              | 58,000    |   |
| 2020                            |   | $                              | 58,000    |   |
| 2021                            |   | $                              | 58,000    |   |
| 2022                            |   | $                              | 1,146,845 |   |

----

----

|                                                   |   | Three Months Ended September 30, |      |   | Nine Months Ended September 30, |   |
|--------------------------------------------------------|--------|----------------------------------|-----------|--------|---------------------------------|--------|
|                                                   |   | 2018                             |      |   | 2017                            |   |   | 2018 |   |   | 2017 |   |
| Selling, general and administrative expenses           |   | $                                | 1,655,160 |   |                            | $      | 108,568 |   |   | $ | 4,147,189 |   |   | $ | 379,622 |   |
|     Total stock-based compensation |   | $                                | 1,655,160 |   |                            | $      | 108,568 |   |   | $ | 4,147,189 |   |   | $ | 379,622 |   |

|                                                   |   | Three Months Ended September 30, |      |   | Nine Months Ended September 30, |   |
|--------------------------------------------------------|--------|----------------------------------|-----------|--------|---------------------------------|--------|
|                                                   |   | 2018                             |      |   | 2017                            |   |   | 2018 |   |   | 2017 |   |
| Restricted stock awards under the Plan                 |   | $                                | 1,434,650 |   |                            | $      | 100,396 |   |   | $ | 3,634,192 |   |   | $ | 188,572 |   |
| Stock option awards under the Plan                     |   |                             | 220,510   |   |                            |   | 8,172 |   |   |   | 512,997 |   |   |   | 103,430 |   |
| Non-qualified stock option awards                      |   |                             | -         |   |                            |   | - |   |   |   | - |   |   |   | 87,620 |   |
|     Total stock-based compensation |   | $                                | 1,655,160 |   |                            | $      | 108,568 |   |   | $ | 4,147,189 |   |   | $ | 379,622 |   |

|                           |   | Number of Shares |     |   | Weighted Average Grant-DateFair Value |   |
|--------------------------------|--------|------------------|----------|--------|---------------------------------------|--------|
| Unvested at January 1, 2018    |   |             | 342,070  |   |                                  | $      | 5.97 |   |
| Granted                        |   |             | 431,000  |   |                                  |   | 10.46 |   |
| Vested                         |   |             | (201,421 | )      |                                  |   | 7.48 |   |
| Forfeited                      |   |             | (290,147 | )      |                                  |   | 6.53 |   |
| Delivered                      |   |             | (124,583 | )      |                                  |   | 5.42 |   |
| Unvested at September 30, 2018 |   |             | 156,919  |   |                                  | $      | 13.37 |   |

----

|                                    |   | Shares Underlying Options |    |   | Weighted Average Exercise Price |   |   | Weighted Average Remaining ContractualTerm (Years) |   |   | Aggregate Intrinsic Value |   |
|-----------------------------------------|--------|---------------------------|---------|--------|---------------------------------|--------|--------|----------------------------------------------------|--------|--------|---------------------------|--------|
| Outstanding at January 1, 2018          |   |                      | 119,533 |   |                            | $      | 9.02   |                                               |   |   |                      |   |   |   |
|      Granted   |   |                      | 62,000  |   |                            |   | 15.71  |                                               |   |   |                      |   |   |   |
|      Exercised |   |                      | (19,533 | )      |                            |   | 4.02   |                                               |   |   |                      |   |   |   |
| Outstanding at September 30, 2018       |   |                      | 162,000 |   |                            | $      | 12.19  |                                               |   |   | 9.2                       |   |   | $ | - |   |
|                                    |   |                      |    |   |                            |   |   |                                               |   |   |                      |   |   |   |   |   |
| Exercisable at September 30, 2018       |   |                      | 145,335 |   |                            | $      | 11.46  |                                               |   |   | 9.2                       |   |   | $ | - |   |

----

|                                    |   | Shares Underlying Options/Warrants |      |   | Weighted Average Exercise Price |   |   | Weighted Average Remaining ContractualTerm (Years) |   |   | Aggregate Intrinsic Value |   |
|-----------------------------------------|--------|------------------------------------|-----------|--------|---------------------------------|--------|--------|----------------------------------------------------|--------|--------|---------------------------|--------|
| Outstanding at December 31, 2017        |   |                               | 1,944,895 |   |                            | $      | 35.06  |                                               |   |   | 2.7                       |   |   | $ | 6,135,000 |   |
|      Granted   |   |                               | -         |   |                            |   | -      |                                               |   |   |                      |   |   |   |   |   |
|      Exercised |   |                               | (113,009  | )      |                            |   | 3.50   |                                               |   |   |                      |   |   |   |   |   |
|      Forfeited |   |                               | (160,773  | )      |                            |   | 10.88  |                                               |   |   |                      |   |   |   |   |   |
| Outstanding at September 30, 2018       |   |                               | 1,671,113 |   |                            | $      | 39.47  |                                               |   |   | 2.2                       |   |   | $ | 3,000 |   |
|                                    |   |                               |      |   |                            |   |   |                                               |   |   |                      |   |   |   |   |   |
| Exercisable at September 30, 2018       |   |                               | 1,671,113 |   |                            | $      | 39.47  |                                               |   |   | 2.2                       |   |   | $ | 3,000 |   |

|                                            |   | September 30, 2018 |       |
|-------------------------------------------------|--------|--------------------|------------|
| Digital currencies balance - January 1, 2018    |   | $                  | 200,164    |   |
| Additions of digital currencies                 |   |               | 6,087,405  |   |
| Purchase of digital currencies                  |   |               | 5,722,547  |   |
| Sale of digital currencies                      |   |               | (7,371,172 | ) |
| Realized gain on sale of digital currencies     |   |               | 451,341    |   |
| Impairment of digital currencies                |   |               | (3,374,976 | ) |
| Digital currencies balance - September 30, 2018 |   | $                  | 1,715,309  |   |

----

| Current Liabilities       |   | September 30, 2018 |   |   | December 31, 2017 |   |
|---------------------------|--------|--------------------|--------|--------|-------------------|--------|
| Accounts payable          |   | $                  | 16,000 |   |              | $      | 16,000 |   |
| Accrued expenses          |   |               | -      |   |              |   | 28,000 |   |
| Deferred revenue          |   |               | -      |   |              |   | 137,000 |   |
| Total current liabilities |   | $                  | 16,000 |   |              | $      | 181,000 |   |

|                                                   |   | Three Months Ended September 30, |   |   | Nine Months Ended September 30, |   |
|--------------------------------------------------------|--------|----------------------------------|--------|--------|---------------------------------|--------|
|                                                   |   | 2018                             |   |   | 2017                            |   |   | 2018 |   |   | 2017 |   |
| Revenue                                                |   | $                                | -      |   |                            | $      | 7,000 |   |   | $ | 137,000 |   |   | $ | 37,000 |   |
| Cost of revenue                                        |   |                             | -      |   |                            |   | 2,000 |   |   |   | 41,000 |   |   |   | 6,000 |   |
| Gross margin                                           |   |                             | -      |   |                            |   | 5,000 |   |   |   | 96,000 |   |   |   | 31,000 |   |
| Operating expenses                                     |   |                             | -      |   |                            |   | (26,000 | ) |   |   | - |   |   |   | 975,000 |   |
| Operating income (loss)                                |   |                             | -      |   |                            |   | 31,000 |   |   |   | 96,000 |   |   |   | (944,000 | ) |
| Escrow forfeiture gain                                 |   |                             | -      |   |                            |   | - |   |   |   | - |   |   |   | 135,000 |   |
| Impairment loss                                        |   |                             | -      |   |                            |   | - |   |   |   | - |   |   |   | (2,754,000 | ) |
| Income (loss) from discontinued operations, net of tax |   | $                                | -      |   |                            | $      | 31,000 |   |   | $ | 96,000 |   |   | $ | (3,563,000 | ) |

----

----

----

----

----

|   | • | continuing expansion and improving operating efficiencies of cryptocurrency mining operations;                 |
|--------|---------|----------------------------------------------------------------------------------------------------------------|
|   | • | continuing to evaluate opportunities for investments in the blockchain and digital currency sector;  |
|   | • | establishing a virtual currency exchange;                                                                      |
|   | • | exploring other possible strategic options and financing opportunities available to the Company;               |
|   | • | evaluating options to monetize, partner or license the Company's assets; and                                   |
|   | • | continuing to implement cost control initiatives to conserve cash.                                             |

----

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| EXHIBIT |   | DESCRIPTION                                                                                                                                                                                                                                |
|---------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 10.1    |   | Waiver Letter, dated August 20, 2018, between the Company and BMSS (incorporated by reference to 8-K filed August 24, 2018)                                                                                                                |
| 10.2    |   | Software License and Services Agreement dated as of August 30, 2018, between goNumerical Ltd. and Riot Blockchain, Inc. (incorporated by reference to 8-K filed September 7, 2018)                                                         |
| 10.3    |   | Subscription Agreement dated as of August 30, 2018, between goNumerical Ltd. and Riot Blockchain, Inc. (incorporated by reference to 8-K filed September 7, 2018)                                                                          |
| 10.4    |   | Subscription Agreement dated as of August 30, 2018, between RiotX Holdings, Inc., and goNumerical Ltd. (incorporated by reference to 8-K filed September 7, 2018)                                                                          |
| 10.5    |   | Termination and Release Agreement, dated September 17, 2018, by and among Riot Blockchain, Inc., RiotX, Holdings, Inc. and goNumerical Ltd. (incorporated by reference to 8-K filed September 18, 2018)                                    |
| 10.6    |   | Amendment to Executive Employment Agreement dated as of September 20, 2018, by and between Riot Blockchain, Inc., a Nevada Corporation, and Christopher Ensey (incorporated by reference to 8-K filed September 26, 2018)                  |
| 10.7    |   | Master Services Agreement and Software-as-a-Service Order Form by and between Logical Brokerage Corporation and Synapse Financial Technologies, Inc (incorporated by reference to 8-K filed October 29, 2018)                              |
| 31.1    |   | Rule 13a-14(a)/15d-14(a) - Certification of Chief Executive Officer.*                                                                                                                                                                      |
| 31.2    |   | Rule 13a-14(a)/15d-14(a) - Certification of Chief Financial Officer.*                                                                                                                                                                      |
| 32      |   | Section 1350 Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. Furnished herewith.*                                                                                  |
| 101     |   | Interactive data files pursuant to Rule 405 of Regulation S-T: (i) the Balance Sheets, (ii) the Statements of Operations, (iii) the Statements of Cash Flows and (iv) the Notes to Condensed Interim Consolidated Financial Statements. ** |

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|                            | Riot Blockchain, Inc.  (Registrant)                                         |
|---------------------------------|-----------------------------------------------------------------------------|
|                            |                                                                        |
|  Dated: March 6, 2019 | /s/ Jeffrey G. McGonegal                                                    |
|                            | Jeffrey G. McGonegal  Chief Executive Officer (Principal Executive Officer) |
|  Dated: March 6, 2019 | /s/ Robby Chang                                                                   |
|---------------------------------|-----------------------------------------------------------------------------------|
|                            | Robby Chang  Chief Financial Officer (Principal Financial and Accounting Officer) |
|                            |                                                                         |

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