Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

  Names of Reporting Persons.

  Todd R. Nelson

  Check the Appropriate Box if a Member of a Group (See Instructions)

  (a)  ☐        (b)  ☐

  SEC Use Only

  Citizenship or Place of Organization

  United States of America

Number of

Shares

 Beneficially 

Owned by

Each

Reporting

Person

With:

  Sole Voting Power

  6,148,597 (1)

  Shared Voting Power

  122,516

  Sole Dispositive Power

  6,148,597 (1)

  Shared Dispositive Power

  122,516

  Aggregate Amount Beneficially Owned by Each Reporting Person

  6,271,113 (1)

  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (see instructions)

  ☐

  Percent of Class Represented by Amount in Row (9)

  21.2%

  Type of Reporting Person (See Instructions)

  IN

Includes (i) 90,747 shares of Common Stock held by Todd R. Nelson, (ii) 6,000,000 shares of Common Stock held by GATTACA Mining LLC, for which Todd R. Nelson serves as managing member, (iii) 122,516 shares of Common Stock held by M-185 Corporation, of which Todd R. Nelson is the majority stockholder, (iv) 11,975 shares of Common Stock issuable to Todd R. Nelson upon vesting of restricted stock units within 60 days of December 31, 2022; and (v) options to purchase 45,875 shares of Common Stock held by Todd R. Nelson, which are exercisable within 60 days of December 31, 2022.

  Names of Reporting Persons.

  GATTACA Mining LLC

  Check the Appropriate Box if a Member of a Group (See Instructions)

  (a)  ☐        (b)  ☐

  SEC Use Only

  Citizenship or Place of Organization

  Delaware

Number of

Shares

 Beneficially 

Owned by

Each

Reporting

Person

With:

  Sole Voting Power

  6,000,000

  Shared Voting Power

  0

  Sole Dispositive Power

  6,000,000

  Shared Dispositive Power

  0

  Aggregate Amount Beneficially Owned by Each Reporting Person

  6,000,000

  Check if the Aggregate Amount in Row (9) Excludes Certain Shares (see instructions)

  ☐

  Percent of Class Represented by Amount in Row (9)

  21.0%

  Type of Reporting Person (See Instructions)

  PN

Name of Issuer:

Address of Issuer’s Principal Executive Offices:

Name of Person Filing:

Address of Principal Business Office or, if none, Residence:

Citizenship:

Title of Class of Securities:

CUSIP Number:

If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or 240.13d-2(b) or 240.13d-2(c).

Ownership.

Amount beneficially owned: See Item 9 of the cover page for each Reporting Person.

Todd R. Nelson may be deemed the beneficial owner of 21.2% of the Common Stock outstanding, based on 29,521,757 shares of Common Stock outstanding as of October 31, 2022, as reported in the Issuer’s Quarterly Report on Form 10-Q filed on November 9, 2022.

Shared power to vote or direct the vote:

Sole power to dispose or direct the disposition:

Shared power to dispose or direct the disposition:

Ownership of 5 Percent or Less of a Class.

Ownership of More than 5 Percent on Behalf of Another Person.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person.

Identification and Classification of Members of the Group.

Notice of Dissolution of Group.

Certifications.

Description