Document:

Exhibit 4.2

 

	NUMBER C-	 	 
	 	 	 
	 	 	
    _________ SHARES

    SEE REVERSE FOR CERTAIN DEFINITIONS

     

    CUSIP

 

BLOCKCHAIN MOON ACQUISITION CORP.

INCORPORATED UNDER THE LAWS OF STATE OF DELAWARE

COMMON STOCK

 

This Certifies that is the owner of

 

FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON
STOCK OF THE PAR VALUE OF US$0.0001 EACH OF

 

BLOCKCHAIN MOON ACQUISITION CORP.

(THE “COMPANY”)

 

subject to the Company’s amended and restated
certificate of incorporation, as the same may be amended from time to time, and transferable on the books of the Company in person or
by duly authorized attorney upon surrender of this certificate properly endorsed.

 

The Company will be forced to redeem all of its
shares of common stock if it is unable to complete a business combination by            ,
2022 all as more fully described in the Company’s final prospectus dated          ,
2021.

 

This certificate is not valid unless countersigned
by the Transfer Agent and registered by the Registrar.

 

Witness the facsimile signatures of its duly authorized
officers.

 

	Chief Executive Officer	 	Secretary
	 	 	 
	 	 	 

 

	CONTINENTAL STOCK TRANSFER

 & TRUST COMPANY	 	 
	 	 	 
	 	 	 
	Name:	 	 
	Title:	 	 

 

 

     

     

    

 

BLOCKCHAIN MOON ACQUISITION CORP.

 

The Company will furnish without charge to each
stockholder who so requests the powers, designations, preferences and relative, participating, optional or other special rights of each
class of stock or series thereof of the Company and the qualifications, limitations, or restrictions of such preferences and/or rights.
This certificate and the shares of common stock represented thereby are issued and shall be held subject to all the provisions of the
amended and restated certificate of incorporation as the same may be amended from time to time, and resolutions of the Board of Directors
providing for the issue of securities (copies of which may be obtained from the secretary of the Company), to all of which the holder
of this certificate by acceptance hereof assents. The following abbreviations, when used in the inscription on the face of this certificate,
shall be construed as though they were written out in full according to applicable laws or regulations:

 

	TEN COM	—	as tenants in common	 	UNIF GIFT MIN ACT	—	 	Custodian	 
	 	 	 	 	 	 	(Cust)	 	(Minor)
	TEN ENT	—	as tenants by the entireties	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	JT TEN	—	as joint tenants with right of survivorship and not as tenants in common	 	 	under Uniform Gifts to Minors Act
	 	 	 	 	 	 
	 	 	 	 	(State)

 

Additional abbreviations may also be used though
not in the above list.

 

For value received, _______________ hereby
sells, assigns and transfers unto ______________________________

 

	 	 
	(PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER(S) OF ASSIGNEE(S))	 
	 	 
	 	 
	(PLEASE PRINT OR TYPEWRITE NAME(S) AND ADDRESS(ES), INCLUDING ZIP CODE, OF ASSIGNEE(S))	 
	 	 
	Shares represented by the within Certificate, and hereby irrevocably constitutes and appoints___________________	 
	 	 
	Attorney to transfer the said shares on the books of the within named Company with full power of substitution in the premises.	 
	 	 	 
	Dated:	 	 
	 	 	 	 

 

	NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.
	 
	Signature(s) Guaranteed:

By

 

 

THE SIGNATURE(S) MUST BE GUARANTEED BY AN
ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE
GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 UNDER THE SECURITIES ACT OF 1933, AS AMENDED).

 

In each case, as more fully described in the Company’s
final prospectus dated           , 2021, the holder(s) of this certificate shall
be entitled to receive a pro-rata portion of certain funds held in the trust account established in connection with its initial public
offering only in the event that (i) the Company redeems the shares of common stock sold in its initial public offering because it
does not consummate an initial business combination by            , 2022, (ii) the
Corporation redeems the shares of common stock sold in its initial public offering in connection with a stockholder vote to amend the
Company’s amended and restated certificate of incorporation (as the same may be amended from time to time) to modify the substance
and timing of the Company’s obligation to redeem 100% of the shares of common stock if it does not consummate and initial business
combination by            , 2022, or (iii) if the holder(s) seek(s) to
redeem for cash his, her or its respective shares of common stock in connection with a tender offer (or proxy solicitation, solely in
the event the Company seeks stockholder approval of the proposed initial business combination) setting forth the details of a proposed
initial business combination. In no other circumstances shall the holder(s) have any right or interest of any kind in or to the trust
account.

 

    	 	2Exhibit 4.3

 

SPECIMEN RIGHTS CERTIFICATE

 

	NUMBER	RIGHTS 

 

________R

 

BLOCKCHAIN MOON ACQUISITION CORP.

 

INCORPORATED UNDER THE LAWS OF DELAWARE

 

RIGHT

 

SEE REVERSE FOR CERTAIN DEFINITIONS

 

CUSIP [_______]

 

THIS CERTIFIES THAT, for value received

 

_____________is the registered holder of a right
or rights (the “Right” or “Rights,” respectively) to receive one-tenth of one share of common stock, par value
$0.0001 per share (“Common Stock”), of Blockchain Moon Acquisition Corp. (the “Company”) for each Right evidenced
by this Right Certificate on the Company’s completion of an initial business combination (as defined in the prospectus relating
to the Company’s initial public offering (“Prospectus”) upon surrender of this Right Certificate pursuant to the Rights
Agreement (the “Rights Agreement”) between the Company and Continental Stock Transfer & Trust Company (the “Rights
Agent”). In no event will the Company be required to net cash settle any Right.

 

Upon liquidation of the Company
in the event an initial business combination is not consummated during the required period as identified in the Company’s Amended
and Restated Certificate of Incorporation, as the same may be amended from time to time, the Right(s) shall expire and be worthless.
The holder of a Right or Rights shall have no right or interest of any kind in the Company’s trust account (as defined in the Prospectus).

 

Upon due presentment for
registration of transfer of the Right Certificate at the office or agency of the Rights Agent a new Right Certificate or Right Certificates
of like tenor and evidencing in the aggregate a like number of Rights shall be issued to the transferee in exchange for this Right Certificate,
without charge except for any applicable tax or other governmental charge.

 

The Company and the Rights
Agent may deem and treat the registered holder as the absolute owner of this Right Certificate (notwithstanding any notation of ownership
or other writing hereon made by anyone), for the purpose of any conversion hereof, of any distribution to the registered holder, and for
all other purposes, and neither the Company nor the Rights Agent shall be affected by any notice to the contrary.

 

Holders of a Right or Rights are not entitled to any of the rights
of a stockholder of the Company.

 

Dated:

 

	 	 	 
	Secretary	[Corporate Seal]	Chairman of the Board
	 	2021	 

 

     

     

    

 

The following abbreviations, when used in the
inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or
regulations:

 

	TEN COM	—	as tenants in common	 	UNIF GIFT MIN ACT	—	 	Custodian	 
	 	 	 	 	 	 	(Cust)	 	(Minor)
	TEN ENT	—	as tenants by the entireties	 	 	 	 	 	 
	 	 	 	 	 	 	 	 	 
	JT TEN	—	as joint tenants with right of survivorship and not as tenants in common Act	 	 	under Uniform Gifts to Minors Act
	 	 	 	 	(State)

 

Additional Abbreviations may also be used though
not in the above list.

 

BLOCKCHAIN MOON ACQUISITION CORP.

 

The Company will furnish without
charge to each stockholder who so requests the powers, designations, preferences and relative, participating, optional or other special
rights of each class of shares or series thereof of the Company and the qualifications, limitations, or restrictions of such preferences
and/or rights. This certificate and the rights represented thereby are issued and shall be held subject to all the provisions of the Rights
Agreement, and all amendments thereto, to all of which the holder of this certificate by acceptance hereof assents.

 

For value received,___________________________
hereby sell, assign and transfer unto

 

	PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE	 
	 	 
	 	 

 

	 
	(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)
	 
	 
	 
	 
	 
	 

 

Rights
represented by the within Certificate, and do hereby irrevocably constitute and appoint                                                                                                                                                                                                                   Attorney
to transfer the said Rights on the books of the within named Company will full power of substitution in the premises.

 

	Dated	 	 	 	 

 

	 	 	 	 	 
	 	 	 	Notice:	The signature to this assignment must correspond with the name as written upon the face of the certificate in every particular, without alteration or enlargement or any change whatever.

 

    2 

     

    

 

Signature(s) Guaranteed:

 

	 
	THE SIGNATURE(S) SHOULD BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15).

 

    3

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