SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

BTC Digital Ltd.

(Name of Issuer)

Ordinary Shares, $0.06 par value

(Title of Class of Securities)

G6055H155

(CUSIP Number)

06/26/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP Number(s):

G6055H155

Names of Reporting Persons

BIGGER CAPITAL FUND L P

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:

5	Sole Voting Power 0.00
6	Shared Voting Power 438,597.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 438,597.00

Aggregate Amount Beneficially Owned by Each Reporting Person

438,597.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

2.8 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP Number(s):

G6055H155

Names of Reporting Persons

Bigger Capital Fund GP, 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:

5	Sole Voting Power 0.00
6	Shared Voting Power 438,597.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 438,597.00

Aggregate Amount Beneficially Owned by Each Reporting Person

438,597.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

2.8 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP Number(s):

G6055H155

Names of Reporting Persons

District 2 Capital Fund LP

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:

5	Sole Voting Power 0.00
6	Shared Voting Power 438,597.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 438,597.00

Aggregate Amount Beneficially Owned by Each Reporting Person

438,597.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

2.8 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP Number(s):

G6055H155

Names of Reporting Persons

District 2 Capital LP

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:

5	Sole Voting Power 0.00
6	Shared Voting Power 438,597.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 438,597.00

Aggregate Amount Beneficially Owned by Each Reporting Person

438,597.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

2.8 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP Number(s):

G6055H155

Names of Reporting Persons

District 2 GP 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:

5	Sole Voting Power 0.00
6	Shared Voting Power 438,597.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 438,597.00

Aggregate Amount Beneficially Owned by Each Reporting Person

438,597.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

2.8 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP Number(s):

G6055H155

Names of Reporting Persons

District 2 Holdings 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:

5	Sole Voting Power 0.00
6	Shared Voting Power 438,597.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 438,597.00

Aggregate Amount Beneficially Owned by Each Reporting Person

438,597.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

2.8 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

CUSIP Number(s):

G6055H155

Names of Reporting Persons

Bigger Michael

Check the appropriate box if a member of a Group (see instructions)

(a)

(b)

Sec Use Only

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 877,194.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 877,194.00

Aggregate Amount Beneficially Owned by Each Reporting Person

877,194.00

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

Checkbox not checked

Percent of class represented by amount in row (9)

5.6 %

Type of Reporting Person (See Instructions)

SCHEDULE 13G

Item 1.

(a)

Name of issuer:

BTC Digital Ltd.

(b)

Address of issuer's principal executive offices:

3RD FLOOR, TOWER A, 2 SHENYUN ROAD WEST, NANSHAN DISTRICT, GUANGDONG PROVINCE, SHENZHEN, CHINA 518074

Item 2.

(a)

Name of person filing:

Bigger Capital Fund, LP ("Bigger Capital") Bigger Capital Fund GP, LLC ("Bigger GP") District 2 Capital Fund LP ("District 2 CF") District 2 Capital LP ("District 2") District 2 GP LLC ("District 2 GP") District 2 Holdings LLC ("District 2 Holdings") Michael Bigger Each of the foregoing is referred to as a "Reporting Person" and collectively as the "Reporting Persons."

(b)

Address or principal business office or, if none, residence:

Bigger Capital Fund, LP 11700 West Charleston Blvd., #170-659 Las Vegas, NV, 89135 Bigger Capital Fund GP, LLC 11700 West Charleston Blvd., #170-659 Las Vegas, NV, 89135 District 2 Capital Fund LP 175 W. Carver Street Huntington, NY 11743 District 2 Capital LP 175 W. Carver Street Huntington, NY 11743 District 2 GP LLC 175 W. Carver Street Huntington, NY 11743 District 2 Holdings LLC 175 W. Carver Street Huntington, NY 11743 Michael Bigger 11700 West Charleston Blvd., #170-659 Las Vegas, NV, 89135

(c)

Citizenship:

Bigger Capital Fund, LP Delaware Bigger Capital Fund GP, LLC Delaware District 2 Capital Fund LP Delaware District 2 Capital LP Delaware District 2 GP LLC Delaware District 2 Holdings LLC Delaware Michael Bigger USA

(d)

Title of class of securities:

Ordinary Shares, $0.06 par value

(e)

CUSIP Number(s):

G6055H155

Item 3.

If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

(b)

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

(c)

Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

(d)

Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

(e)

An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f)

An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g)

A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h)

A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j)

A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:

(k)

Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

Item 4.

Ownership

(a)

Amount beneficially owned:

As of June 26, 2026, Bigger Capital beneficially owned 438,597 Ordinary Shares. The amount does not include 877,194 Ordinary Shares issuable upon exercise of Common Warrants, which are subject to a 4.99% beneficial ownership limitation, owned by Bigger Capital. Bigger GP, as the general partner of Bigger Capital, may be deemed to beneficially own the Issuer's securities described herein. As of June 26, 2026, District 2 CF beneficially owned 438,597 Ordinary Shares. The amount does not include 877,194 Ordinary Shares issuable upon exercise of Common Warrants, which are subject to a 4.99% beneficial ownership limitation, owned by District 2 CF. District 2, as the investment manager of District 2 CF, may be deemed to beneficially own the Issuer's securities described herein beneficially owned by District 2 CF. District 2 GP, as the general partner of District 2 CF, may be deemed to beneficially own the Issuer's securities described herein beneficially owned by District 2 CF. District 2 Holdings, as the managing member of District 2 GP, may be deemed to beneficially own the Issuer's securities described herein beneficially owned by District 2 CF. Mr. Bigger, as the managing member of Bigger GP and the managing member of District 2 Holdings, may be deemed to beneficially own the: (i) 438,597 Ordinary Shares beneficially owned by Bigger Capital, and (ii) 438,597 Ordinary Shares beneficially owned by District 2 CF. Does not include: (a) 877,194 Ordinary Shares issuable upon exercise of Common Warrants, which are subject to a 4.99% beneficial ownership limitation, owned by Bigger Capital, and (b) 877,194 Ordinary Shares issuable upon exercise of Common Warrants, which are subject to a 4.99% beneficial ownership limitation, owned by District 2 CF. The foregoing should not be construed in and of itself as an admission by any Reporting Person as to beneficial ownership of any Ordinary Shares owned by another Reporting Person. Each of Bigger GP and Mr. Bigger disclaims beneficial ownership of the Ordinary Shares beneficially owned by Bigger Capital. Each of District 2, District 2 GP, District 2 Holdings and Mr. Bigger disclaims beneficial ownership of the Ordinary Shares beneficially owned by District 2 CF. The filing of this statement shall not be construed as an admission that any such person or entity is the beneficial owner of any such securities.

(b)

Percent of class:

The following percentages are based on the aggregate of: (i) 9,516,975 Ordinary Shares outstanding as of December 31, 2025, based on the Issuer's Form 20-F filed with the Securities and Exchange Commission on May 11, 2026, and (ii) up to 6,140,350 Ordinary Shares, the number of Ordinary Shares being offered by the Issuer in a private placement offering, based upon the Issuer's Press Release dated June 26, 2026. As of June 26, 2026, (i) each of Bigger Capital and Bigger GP may be deemed to beneficially own 2.8% of the outstanding Ordinary Shares, (ii) each of District 2 CF, District 2, District 2 GP and District Holdings may be deemed to beneficially own 2.8% of the outstanding Ordinary Shares, and (iii) Mr. Bigger may be deemed to beneficially own approximately 5.6% of the outstanding Ordinary Shares. Does not include: (a) 877,194 Ordinary Shares issuable upon exercise of Common Warrants, which are subject to a 4.99% beneficial ownership limitation, owned by Bigger Capital, and (b) 877,194 Ordinary Shares issuable upon exercise of Common Warrants, which are subject to a 4.99% beneficial ownership limitation, owned by District 2 CF. Based upon the Issuer's Press Release dated June 26, 2026, the offering consisted of the sale of 6,140,350 Common Units (or Pre-Funded Units), each consisting of (i) one (1) Ordinary Share or one (1) Pre-Funded Warrant and (ii) two (2) PIPE Common Warrants to purchase one (1) Ordinary Share per warrant at an exercise price of $1.71. To the extent that the Issuer issued Pre-Funded Warrants in lieu of Ordinary Shares, the percentages of the Reporting Persons contained herein may be higher than indicated.

(c)

Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

See Cover Pages Items 5-9.

(ii) Shared power to vote or to direct the vote:

See Cover Pages Items 5-9.

(iii) Sole power to dispose or to direct the disposition of:

See Cover Pages Items 5-9.

(iv) Shared power to dispose or to direct the disposition of:

See Cover Pages Items 5-9.

Item 5.

Ownership of 5 Percent or Less of a Class.

Not Applicable

Item 6.

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

If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.

Bigger GP and Mr. Bigger may be deemed to share voting and dispositive power over the Ordinary Shares beneficially owned by Bigger Capital and each of District 2, District 2 GP, District 2 Holdings and Mr. Bigger may be deemed to share voting and dispositive power over the Ordinary Shares beneficially owned by District 2 CF.

Item 7.

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

Not Applicable

Item 8.

Identification and Classification of Members of the Group.

If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(K), so indicate under Item 3(k) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group.

See Exhibit 99.1.

Item 9.

Notice of Dissolution of Group.

Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

BIGGER CAPITAL FUND L P

Signature:	/s/ Michael Bigger
Name/Title:	Michael Bigger, Managing Member of Bigger Capital Fund GP, LLC, its general partner
Date:	07/02/2026

Bigger Capital Fund GP, LLC

Signature:	/s/ Michael Bigger
Name/Title:	Michael Bigger, Managing Member
Date:	07/02/2026

District 2 Capital Fund LP

Signature:	/s/ Michael Bigger
Name/Title:	Michael Bigger, Managing Member of District 2 GP LLC, its general partner
Date:	07/02/2026

District 2 Capital LP

Signature:	/s/ Michael Bigger
Name/Title:	Michael Bigger, Managing Member
Date:	07/02/2026

District 2 GP LLC

Signature:	/s/ Michael Bigger
Name/Title:	Michael Bigger, Managing Member
Date:	07/02/2026

District 2 Holdings LLC

Signature:	/s/ Michael Bigger
Name/Title:	Michael Bigger, Managing Member
Date:	07/02/2026

Bigger Michael

Signature:	/s/ Michael Bigger
Name/Title:	Michael Bigger
Date:	07/02/2026

Exhibit Information

99.1 - Joint Filing Agreement