Document:

Exhibit 4.2

 

RIGHTS AGREEMENT

 

This Rights Agreement (this
“Agreement”) is made as of May 9, 2022 between Global Blockchain Acquisition Corp., a Delaware corporation, with offices
at 6555 Sanger Road, Suite 200, Orlando, Florida 32827 (“Company”),
and Continental Stock Transfer & Trust Company, a New York corporation, with offices at One State Street, 30th Floor,
New York, New York 10004 (“Rights Agent”).

 

WHEREAS, the Company is engaged
in a public offering (“Public Offering”) of units, each unit (“Unit”) comprised of
one share of common stock, par value $0.0001 per share (“Common Stock”), one right, and one redeemable warrant.
Each right entitles the holder thereof to receive one-tenth of one share of Common Stock upon the happening of the triggering event described
herein (“Right”), and, in connection therewith, the Company will issue and deliver up to 17,250,000 Rights to
the public investors; and

 

WHEREAS, the Company has filed
with the Securities and Exchange Commission (the “SEC”) Registration Statement on Form S-1, File No. 333-264396
(“Registration Statement”), and related Prospectus (“Prospectus”) for the registration,
under the Securities Act of 1933, as amended (“Act”), of, among other securities, the Rights and the Common
Stock issuable to the holders of the Rights; and

  

WHEREAS, the Company desires
the Rights Agent to act on behalf of the Company, and the Rights Agent is willing to so act, in connection with the issuance, registration,
transfer and exchange of the Rights; and

 

WHEREAS, the Company desires
to provide for the form and provisions of the Rights, the terms upon which they shall be issued, and the respective rights, limitation
of rights, and immunities of the Company, the Rights Agent, and the holders of the Rights; and

 

WHEREAS, all acts and things
have been done and performed which are necessary to make the Rights, when executed on behalf of the Company and countersigned by or on
behalf of the Rights Agent, as provided herein, the valid, binding and legal obligations of the Company, and to authorize the execution
and delivery of this Agreement.

 

NOW, THEREFORE, in consideration
of the mutual agreements herein contained, the parties hereto agree as follows:

 

1. Appointment of Rights Agent. The
Company hereby appoints the Rights Agent to act as agent for the Company for the Rights, and the Rights Agent hereby accepts such appointment
and agrees to perform the same in accordance with the terms and conditions set forth in this Agreement.

 

2. Rights.

 

2.1. Form of Right.
Each Right shall be issued in registered form only, shall be in substantially the form of Exhibit A hereto, the provisions of which
are incorporated herein and shall be signed by, or bear the facsimile signature of, the Chairman of the Board or Chief Executive Officer
and the Secretary of the Company and shall bear a facsimile of the Company’s seal. In the event the person whose facsimile signature
has been placed upon any Right shall have ceased to serve in the capacity in which such person signed the Right before such Right is issued,
it may be issued with the same effect as if he or she had not ceased to be such at the date of issuance. Notwithstanding anything herein
to the contrary, any rights, or portion thereof, may be issued as part of, and be represented by, a Unit, and any Right may be issued
in uncertificated or book-entry form through the Right Agent and/or the facilities of The Depository Trust Company (“Depositary”)
or other book-entry depositary system, in each case as determined by the Board of Directors of the Company or by an authorized committee
thereof. Any Right so issued shall have the same terms, force and effect as a certificated Right that has been duly countersigned by the
Right Agent in accordance with the terms of this Agreement.

 

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2.2. Effect of Countersignature.
Unless and until countersigned by the Rights Agent pursuant to this Agreement, a Right shall be invalid and of no effect and may not be
exchanged for shares of Common Stock.

 

2.3. Registration.

 

2.3.1. Right Register.
The Rights Agent shall maintain books (“Right Register”) for the registration of original issuance and the registration
of transfer of the Rights. Upon the initial issuance of the Rights, the Rights Agent shall issue and register the Rights in the names
of the respective holders thereof in such denominations and otherwise in accordance with instructions delivered to the Rights Agent by
the Company.

 

2.3.2. Registered Holder.
Prior to due presentment for registration of transfer of any Right, the Company and the Rights Agent may deem and treat the person in
whose name such Right shall be registered upon the Right Register (“registered holder”) as the absolute owner
of such Right and of each Right represented thereby (notwithstanding any notation of ownership or other writing on the Right Certificate
made by anyone other than the Company or the Rights Agent), for the purpose of the exchange thereof, and for all other purposes, and neither
the Company nor the Rights Agent shall be affected by any notice to the contrary.

 

2.4. Detachability
of Rights. The securities comprising the Units, including the Rights, will not be separately transferable until the earlier to occur
of: (i) the 52nd day following the date of the Prospectus or (ii) the announcement by the Representative, as representative
of the underwriters in the Public Offering, of its intention to allow separate earlier trading (the “Detachment Date”),
except that in no event will the securities comprising the Units be separately tradeable until the Company files a Current Report on Form
8-K with the SEC which includes an audited balance sheet reflecting the receipt by the Company of the gross proceeds of the Public Offering
including the proceeds received by the Company from the exercise of the over-allotment option, if the over-allotment option is exercised
by the date thereof and the Company issues a press release and files a Current Report on Form 8-K with the SEC announcing when such separate
trading shall begin. Upon the Detachment Date, the Units will no longer trade, and each holder of Units will become, without any action
by such holder, the holder of that number of shares Common Stock and Rights comprising the Units held by such holder.

 

3. Terms and Exchange of Rights

 

3.1. Rights. Each
Right shall entitle the holder thereof to receive one-tenth of one share of Common Stock upon the happening of an Exchange Event (defined
below). No additional consideration shall be paid by a holder of Rights in order to receive his, her or its Common Stock upon an Exchange
Event as the purchase price for such Common Stock has been included in the purchase price for the Units. In no event will the Company
be required to net cash settle the Rights or issue fractional shares of Common Stock.

 

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3.2. Exchange Event.
An “Exchange Event” shall occur upon the Company’s consummation of an initial Business Combination (as
defined in the Company’s Amended and Restated Certificate of Incorporation).

  

3.3. Exchange of Rights.

 

3.3.1. Issuance of Common
Stock. Upon the occurrence of an Exchange Event, the Company shall issue to each registered holder of the Rights the number of full
shares of Common Stock to which he, she or it is entitled, registered in such name or names as may be directed by him, her or it and issue
to such registered holder(s) a certificate or book-entry position for such shares. Notwithstanding the foregoing, or any provision contained
in this Agreement to the contrary, in no event will the Company be required to net cash settle the Rights. The Company shall not issue
fractional shares upon exchange of Rights. In the event that any holder would otherwise be entitled to any fractional share upon exchange
of Rights, at the time of an Exchange Event, the Company will instruct the Right Agent how any such entitlement will be addressed. To
the fullest extent permitted by the Company’s Amended and Restated Certificate of Incorporation the Company reserves the right to
deal with any such fractional entitlement at the relevant time in any manner permitted by the Act and the Amended and Restated Certificate
of Incorporation, which would include the rounding down of any entitlement to receive shares of Common Stock to the nearest whole share
(and in effect extinguishing any fractional entitlement), or the holder being entitled to hold any remaining fractional entitlement (without
any share being issued) and to aggregate the same with any future fractional entitlement to receive shares in the Company until the holder
is entitled to receive a whole number. Any rounding down and extinguishment may be done with or without any in lieu cash payment or other
compensation being made to the holder of the relevant Rights, such that value received on exchange of the Rights may be considered less
than the value that the holder would otherwise expect to receive.

  

3.3.2. Valid Issuance.
All Common Stock issued upon an Exchange Event in conformity with this Agreement shall be validly issued, fully paid and nonassessable.

 

3.3.3. Date of Issuance.
Each person in whose name any such certificate or book-entry position for shares of Common Stock is issued shall for all purposes be deemed
to have become the holder of record of such shares on the date of the Exchange Event, irrespective of the date of delivery of such certificate
or entry of position.

 

3.3.4   Company
Not Surviving Following Exchange Event. Upon an Exchange Event in which the Company does not continue as the publicly held reporting
entity, the definitive agreement will provide for the holders of Rights to receive the same per share consideration the holders of the
shares of Common Stock will receive in such transaction, for the number of shares such holder is entitled to pursuant to Section 3.3.1
above. If the Company does not continue as the publicly held reporting entity upon an Exchange Event, each holder of a Right will automatically
receive the one-tenth (1/10) of one share underlying each right (without paying any additional consideration) upon consummation of the
Exchange Event.

 

3.5   Duration
of Rights. If an Exchange Event does not occur within the time period set forth in the Company’s Amended and Restated Certificate
of Incorporation, as the same may be amended from time to time, the Rights shall expire and shall be worthless.

 

4. Transfer and Exchange of Rights.

 

4.1. Registration
of Transfer. The Rights Agent shall register the transfer, from time to time, of any outstanding Right upon the Right Register, upon
surrender of such Right for transfer, properly endorsed with signatures properly guaranteed and accompanied by appropriate instructions
for transfer. Upon any such transfer, a new Right representing an equal aggregate number of Rights shall be issued and the old Right shall
be cancelled by the Rights Agent. The Rights so cancelled shall be delivered by the Rights Agent to the Company from time to time upon
request.

 

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4.2. Procedure for
Surrender of Rights. Rights may be surrendered to the Rights Agent, together with a written request for exchange or transfer, and
thereupon the Rights Agent shall issue in exchange therefor one or more new Rights as requested by the registered holder of the Rights
so surrendered, representing an equal aggregate number of Rights; provided, however, that in the event that a Right surrendered for transfer
bears a restrictive legend and the new Rights to be issued will not bear a restrictive legend, the Rights Agent shall not cancel such
Right and issue new Rights in exchange therefor until the Rights Agent has received an opinion of counsel for the Company stating that
such transfer may be made and indicating no restrictive legend is required.

  

4.3. Fractional Rights.
The Rights Agent shall not be required to effect any registration of transfer or exchange which will result in the issuance of a Right
Certificate for a fraction of a Right.

 

4.4. Service Charges.
No service charge shall be made for any exchange or registration of transfer of Rights.

  

4.5. Adjustments to
Conversion Ratios. The number of shares of Common Stock that the holders of Rights are entitled to receive as a result of the occurrence
of an Exchange Event shall be equitably adjusted to reflect appropriately the effect of any share split, reverse share split, share dividend,
reorganization, recapitalization, reclassification, combination, exchange of shares or other like change with respect to the Common Stock
occurring on or after the date hereof and prior to the Exchange Event.

 

4.6. Right Execution
and Countersignature. The Rights Agent is hereby authorized to countersign and to deliver, in accordance with the terms of this Agreement,
the Rights required to be issued pursuant to the provisions of this Section 4, and the Company, whenever required by the Rights Agent,
will supply the Rights Agent with Rights duly executed on behalf of the Company for such purpose.

 

5. Other Provisions Relating to Rights
of Holders of Rights.

 

5.1. No Rights as
Shareholder. Until the exchange of a Right for shares of Common Stock as provided for herein, a Right does not entitle the registered
holder thereof to any of the rights of a shareholder of the Company, including, without limitation, the right to receive dividends, or
other distributions, exercise any preemptive rights to vote or to consent or to receive notice as shareholders in respect of the meetings
of shareholders or the election of directors of the Company or any other matter.

 

5.2. Lost, Stolen,
Mutilated, or Destroyed Rights. If any Right is lost, stolen, mutilated, or destroyed, the Company and the Rights Agent may on such
terms as to indemnity or otherwise as they may in their discretion impose (which shall, in the case of a mutilated Right, include the
surrender thereof), issue a new Right of like denomination, tenor, and date as the Right so lost, stolen, mutilated, or destroyed. Any
such new Right shall constitute a substitute contractual obligation of the Company, whether or not the allegedly lost, stolen, mutilated,
or destroyed Right shall be at any time enforceable by anyone.

 

5.3. Reservation of
Common Stock. The Company shall at all times reserve and keep available a number of its authorized but unissued shares of Common Stock
that will be sufficient to permit the exchange of all outstanding Rights issued pursuant to this Agreement.

 

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6. Concerning the Rights Agent and Other
Matters.

 

6.1. Payment of Taxes.
The Company will from time to time promptly pay all taxes and charges that may be imposed upon the Company or the Rights Agent in respect
of the issuance or delivery of Common Stock upon the exchange of Rights, but the Company shall not be obligated to pay any transfer taxes
in respect of the Rights or such Common Stock.

 

6.2. Resignation,
Consolidation, or Merger of Rights Agent.

 

6.2.1. Appointment of
Successor Rights Agent. The Rights Agent, or any successor to it hereafter appointed, may resign its duties and be discharged from
all further duties and liabilities hereunder after giving sixty (60) days’ notice in writing to the Company. If the office of the
Rights Agent becomes vacant by resignation or incapacity to act or otherwise, the Company shall appoint in writing a successor Rights
Agent in place of the Rights Agent. If the Company shall fail to make such appointment within a period of thirty (30) days after it has
been notified in writing of such resignation or incapacity by the Rights Agent or by the holder of the Right (who shall, with such notice,
submit his, her or its Right for inspection by the Company), then the holder of any Right may apply to the Supreme Court of the State
of New York for the County of New York for the appointment of a successor Rights Agent at the Company’s cost. Any successor Rights
Agent, whether appointed by the Company or by such court, shall be a corporation organized and existing under the laws of the State of
New York, in good standing and having its principal office in the Borough of Manhattan, City and State of New York, and authorized under
such laws to exercise corporate trust powers and subject to supervision or examination by federal or state authority. After appointment,
any successor Rights Agent shall be vested with all the authority, powers, rights, immunities, duties, and obligations of its predecessor
Rights Agent with like effect as if originally named as Rights Agent hereunder, without any further act or deed; but if for any reason
it becomes necessary or appropriate, the predecessor Rights Agent shall execute and deliver, at the expense of the Company, an instrument
transferring to such successor Rights Agent all the authority, powers, and rights of such predecessor Rights Agent hereunder; and upon
request of any successor Rights Agent the Company shall make, execute, acknowledge, and deliver any and all instruments in writing for
more fully and effectually vesting in and confirming to such successor Rights Agent all such authority, powers, rights, immunities, duties,
and obligations. 

 

6.2.2.   Notice
of Successor Rights Agent. In the event a successor Rights Agent shall be appointed, the Company shall give notice thereof to the
predecessor Rights Agent and the transfer agent for the shares of Common Stock not later than the effective date of any such appointment.

 

6.2.3.   Merger
or Consolidation of Rights Agent. Any corporation into which the Rights Agent may be merged or with which it may be consolidated or
any corporation resulting from any merger or consolidation to which the Rights Agent shall be a party shall be the successor Rights Agent
under this Agreement without any further act.

 

6.3. Fees and Expenses of Rights Agent.

 

6.3.1.   Remuneration.
The Company agrees to pay the Rights Agent reasonable remuneration for its services as such Rights Agent hereunder and will reimburse
the Rights Agent upon demand for all expenditures that the Rights Agent may reasonably incur in the execution of its duties hereunder.

 

6.3.2. Further Assurances.
The Company agrees to perform, execute, acknowledge, and deliver or cause to be performed, executed, acknowledged, and delivered all such
further and other acts, instruments, and assurances as may reasonably be required by the Rights Agent for the carrying out or performing
of the provisions of this Agreement.

 

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6.4. Liability of
Rights Agent.

 

6.4.1. Reliance on Company
Statement. Whenever in the performance of its duties under this Agreement, the Rights Agent shall deem it necessary or desirable that
any fact or matter be proved or established by the Company prior to taking or suffering any action hereunder, such fact or matter (unless
other evidence in respect thereof be herein specifically prescribed) may be deemed to be conclusively proved and established by a statement
signed by the Chief Executive Officer or Chief Financial Officer and delivered to the Rights Agent. The Rights Agent may rely upon such
statement for any action taken or suffered in good faith by it pursuant to the provisions of this Agreement.

 

6.4.2. Indemnity.
The Rights Agent shall be liable hereunder only for its own gross negligence, willful misconduct or bad faith. Subject to Section 6.6
below, the Company agrees to indemnify the Rights Agent and save it harmless against any and all liabilities, including judgments, costs
and reasonable counsel fees, for anything done or omitted by the Rights Agent in the execution of this Agreement except as a result of
the Rights Agent’s gross negligence, willful misconduct, or bad faith.

 

6.4.3. Exclusions.
The Rights Agent shall have no responsibility with respect to the validity of this Agreement or with respect to the validity or execution
of any Right (except its countersignature thereof); nor shall it be responsible for any breach by the Company of any covenant or condition
contained in this Agreement or in any Right; nor shall it by any act hereunder be deemed to make any representation or warranty as to
the authorization or reservation of any shares of Common Stock to be issued pursuant to this Agreement or any Right or as to whether any
shares of Common Stock will when issued be valid and fully paid and nonassessable. 

 

6.5. Acceptance of
Agency. The Rights Agent hereby accepts the agency established by this Agreement and agrees to perform the same upon the terms and
conditions herein set forth.

 

6.6 Waiver. The
Rights Agent hereby waives any right of set-off or any other right, title, interest or claim of any kind (“Claim”)
in, or to any distribution of, the Trust Account (as defined in that certain Investment Management Trust Agreement, dated as of the date
hereof, by and between the Company and the Rights Agent as trustee thereunder) and hereby agrees not to seek recourse, reimbursement,
payment or satisfaction for any Claim against the Trust Account for any reason whatsoever.

 

7. Miscellaneous Provisions.

 

7.1. Successors.
All the covenants and provisions of this Agreement by or for the benefit of the Company or the Rights Agent shall bind and inure to the
benefit of their respective successors and assigns.

 

7.2. Notices.
Any notice, statement or demand authorized by this Agreement to be given or made by the Rights Agent or by the holder of any Right to
or on the Company shall be sufficiently given when so delivered if by hand or overnight delivery or if sent by certified mail or private
courier service within five days after deposit of such notice, postage prepaid, addressed (until another address is filed in writing by
the Company with the Rights Agent), as follows:

 

Global Blockchain
Acquisition Corp.

6555 Sanger Road

Suite
200

Orlando, Florida 32827

Attn: Max Hooper

 

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Any notice, statement or demand authorized by
this Agreement to be given or made by the holder of any Right or by the Company to or on the Rights Agent shall be sufficiently given
when so delivered if by hand or overnight delivery or if sent by certified mail or private courier service within five days after deposit
of such notice, postage prepaid, addressed (until another address is filed in writing by the Rights Agent with the Company), as follows:

 

Continental Stock Transfer & Trust
Company

One State Street, 30th Floor

New York, New York 10004

Attn: Account Administration

 

with a copy to:

 

ArentFox Schiff LLP

1717 K Street NW

Washington, D.C. 20006

Attn: Ralph V. De Martino, Esq.

 

and

 

I-Bankers Securities Inc

535 5th Ave.

New York, NY 10017

Attn: Shelley Leonard, President

 

Dawson James Securities, Inc.

101 N. Federal Highway, Suite 600

Boca Raton, Florida 33432

 

7.3. Applicable Law
and Exclusive Forum. The validity, interpretation, and performance of this Agreement and of the Rights shall be governed in all respects
by the laws of the State of New York. Subject to applicable law, the Company hereby agrees that any action, proceeding or claim against
it arising out of or relating in any way to this Agreement shall be brought and enforced in the courts of the State of New York or the
United States District Court for the Southern District of New York, and irrevocably submits to such jurisdiction, which jurisdiction shall
be exclusive forum for any such action, proceeding or claim. The Company hereby waives any objection to such exclusive jurisdiction and
that such courts represent an inconvenient forum. Notwithstanding the foregoing, the provisions of this paragraph will not apply to suits
brought to enforce any liability or duty created by the Exchange Act or any other claim for which the federal district courts of the United
States of America are the sole and exclusive forum.

 

Any person or entity purchasing
or otherwise acquiring any interest in the Rights shall be deemed to have notice of and to have consented to the forum provisions in this
Section 7.3. If any action, the subject matter of which is within the scope the forum provisions above, is filed in a court other than
a court located within the State of New York or the United States District Court for the Southern District of New York (a “foreign
action”) in the name of any Rights holder, such Rights holder shall be deemed to have consented to: (x) the personal jurisdiction
of the state and federal courts located within the State of New York or the United States District Court for the Southern District of
New York in connection with any action brought in any such court to enforce the forum provisions (an “enforcement action”),
and (y) having service of process made upon such Rights holder in any such enforcement action by service upon such Rights holder’s
counsel in the foreign action as agent for such Rights holder.

 

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7.4. Persons Having
Rights under this Agreement. Nothing in this Agreement expressed and nothing that may be implied from any of the provisions hereof
is intended, or shall be construed, to confer upon, or give to, any person or corporation other than the parties hereto and the registered
holders of the Rights and, for the purposes of Sections 7.4 and 7.8 hereof, the Representative, any right, remedy, or claim under or by
reason of this Agreement or of any covenant, condition, stipulation, promise, or agreement hereof. The Representative shall be deemed
to be a third-party beneficiary of this Agreement with respect to Sections 7.4 and 7.8 hereof. All covenants, conditions, stipulations,
promises, and agreements contained in this Agreement shall be for the sole and exclusive benefit of the parties hereto (and the Representative
with respect to the Sections 7.4 and 7.8 hereof) and their successors and assigns and of the registered holders of the Rights. The provisions
of this Section 7.4 may not be modified, amended or deleted without the prior written consent of the Representative.

 

7.5. Examination of
the Right Agreement. A copy of this Agreement shall be available at all reasonable times at the office of the Rights Agent in the
Borough of Manhattan, City and State of New York, for inspection by the registered holder of any Right. The Rights Agent may require any
such holder to submit his, her or its Right for inspection by it.

 

7.6. Counterparts.
This Agreement may be executed in any number of original or facsimile counterparts and each of such counterparts shall for all purposes
be deemed to be an original, and all such counterparts shall together constitute but one and the same instrument.

 

7.7. Effect of Headings.
The Section headings herein are for convenience only and are not part of this Agreement and shall not affect the interpretation thereof.

 

7.8 Amendments.
This Agreement may be amended by the parties hereto without the consent of any registered holder for the purpose of curing any ambiguity,
or of curing, correcting or supplementing any defective provision contained herein or adding or changing any other provisions with respect
to matters or questions arising under this Agreement as the parties may deem necessary or desirable and that the parties deem shall not
adversely affect the interest of the registered holders. All other modifications or amendments shall require the written consent or vote
of the registered holders of a majority of the then outstanding Rights. The provisions of this Section 7.8 may not be modified, amended
or deleted without the prior written consent of the Representative.

  

7.9 Severability.
This Agreement shall be deemed severable, and the invalidity or unenforceability of any term or provision hereof shall not affect the
validity or enforceability of this Agreement or of any other term or provision hereof. Furthermore, in lieu of any such invalid or unenforceable
term or provision, the parties hereto intend that there shall be added as a part of this Agreement a provision as similar in terms to
such invalid or unenforceable provision as may be possible and be valid and enforceable.

 

[Signature Page Follows]

 

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IN WITNESS WHEREOF, this Agreement has been duly
executed by the parties hereto as of the day and year first above written.

 

	 	GLOBAL BLOCKCHAIN ACQUISITION CORP.
	 	 	                                                              
	 	By:	/s/ Jonathan Morris 
	 	 	Name: Jonathan Morris 
	 	 	Title: Chief Financial Officer
	 	 	 
	 	CONTINENTAL STOCK TRANSFER & TRUST COMPANY
	 	 	 
	 	By:	/s/ Erika Young 
	 	 	Name: Erika Young 
	 	 	Title: Vice President 

 

[Signature Page to Rights Agreement]Exhibit 10.1

 

May 9, 2022

 

Global Blockchain Acquisition Corp.

6555 Sanger
Road, Suite 200

Orlando, Florida 32827

 

Re: Initial Public Offering

 

Gentlemen:

 

This letter (this “Letter
Agreement”) is being delivered to you in accordance with the Underwriting Agreement (the “Underwriting Agreement”)
to be entered into by and among Global Blockchain Acquisition Corp., a Delaware corporation (the “Company”),
I-Bankers Securities, Inc. as the representative of the underwriters (the “Representative”) and Dawson James
Securities, Inc. (the “Co-Manager” and, together with the Representative, the “Underwriters”)
relating to an underwritten initial public offering (the “Public Offering”), of up to 17,250,000 of the Company’s
units (including up to 2,250,000 units that may be purchased to cover over-allotments, if any) (the “Units”),
each comprised of one share of the Company’s common stock, par value $0.0001 per share (the “Common Stock”),
one right, and one redeemable warrant. Each whole right (each a “Right”) entitles the holder thereof to receive
one-tenth (1/10) of one share of Common Stock upon the consummation of an initial business combination. Each warrant (each, a “Warrant”)
entitles the holder thereof to purchase one share of Common Stock at a price of $11.50 per share, subject to adjustment. The Units will
be sold in the Public Offering pursuant to a registration statement on Form S-1 and prospectus (the “Prospectus”)
filed by the Company with the Securities and Exchange Commission (the “Commission”) and the Units have been
approved to be listed on The Nasdaq Capital Market. Certain capitalized terms used herein are defined in paragraph 11 hereof.

 

In order to induce the Company
and the Underwriters to enter into the Underwriting Agreement and to proceed with the Public Offering and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, Global Blockchain Sponsor, LLC (the “Sponsor”)
and each of the undersigned individuals, each of whom is a member of the Company’s board of directors and/or management team, the
Representative and the Co-Manager, solely in their capacity as a security holder of the Company (each, an “Insider”
and collectively, the “Insiders”), hereby agrees with the Company as follows:

 

1. The Sponsor and each Insider
agrees that if the Company seeks stockholder approval of a proposed Business Combination, then in connection with such proposed Business
Combination, it, he or she shall (i) vote any shares of Capital Stock owned by it, him or her in favor of any proposed Business Combination
and (ii) not redeem any shares of Common Stock owned by it, him or her in connection with such stockholder approval. If the Company
engages in a tender offer in connection with any proposed Business Combination, each Insider agrees that it, he or she will not seek to
sell its, his or her shares of Common Stock to the Company in connection with such tender offer.

 

     

     

    

 

2. The Sponsor and each Insider
hereby agrees that in the event that the Company fails to consummate a Business Combination within 15 months from the closing of the Public
Offering (or up to 21 months from the closing of this offering if the Company extends the period of time to consummate a business combination),
the Sponsor and each Insider shall take all reasonable steps to cause the Company to (i) cease all operations except for the purpose
of winding up, (ii) as promptly as reasonably possible but not more than 10 business days thereafter, subject to lawfully available
funds therefor, redeem 100% of the Common Stock sold as part of the Units in the Public Offering (the “Offering Shares”),
at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest earned on
the funds held in the Trust Account and not previously released to the Company to pay its taxes (which interest shall be net of taxes
payable, and less up to $100,000 of interest to pay dissolution expenses), divided by the number of then outstanding Offering Shares,
which redemption will completely extinguish all Public Stockholders’ rights as stockholders of the Company (including the right
to receive further liquidation distributions, if any), subject to applicable law, and (iii) as promptly as reasonably possible following
such redemption, subject to the approval of the Company’s remaining stockholders and the Company’s board of directors, dissolve
and liquidate, subject in each case to the Company’s obligations under Delaware law to provide for claims of creditors and other
requirements of applicable law. The Sponsor and each Insider agree not to propose any amendment to the Company’s amended and restated
certificate of incorporation (the “Charter”) that would modify (i) the substance or timing of the Company’s
obligation to redeem 100% of the Offering Shares if the Company does not complete a Business Combination within 15 months from the closing
of the Public Offering (or up to 21 months from the closing of this offering if the Company extends the period of time to consummate a
business combination) or (ii) the other provisions relating to stockholders’ rights or pre-initial business combination activities,
unless the Company provides its Public Stockholders with the opportunity to redeem their Offering Shares upon approval of any such amendment
at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including interest (which interest
shall be net of amounts released for payment of taxes) divided by the number of then outstanding Offering Shares. The Sponsor and each
Insider agree to waive its redemption rights with respect to shares of Common Stock owned by it in connection with a stockholder vote
to approve an amendment to the Company’s Charter (A) to modify the substance or timing of the Company’s obligation to
redeem 100% of the Offering Shares if the Company does not complete a Business Combination within 15 months from the closing of the Public
Offering (or up to 21 months from the closing of this offering if the Company extends the period of time to consummate a business combination)
or (B) with respect to any other provision relating to stockholders’ rights or pre-initial business combination activity.

 

The Sponsor and each Insider
acknowledges that it, he or she has no right, title, interest or claim of any kind in or to any monies held in the Trust Account or any
other asset of the Company as a result of any liquidation of the Company with respect to the Founder Shares held by it, him or her. The
Sponsor and each Insider hereby further waives, with respect to any shares of Common Stock held by it, him or her, if any, any redemption
rights it, he or she may have in connection with the consummation of a Business Combination, including, without limitation, any such rights
available in the context of a stockholder vote to approve such Business Combination or in the context of a tender offer made by the Company
to purchase shares of Common Stock (although the Sponsor, the Insiders and their respective affiliates shall be entitled to redemption
and liquidation rights with respect to any Offering Shares it or they hold if the Company fails to consummate a Business Combination within
15 months from the date of the closing of the Public Offering (or up to 21 months from the closing of this offering if the Company extends
the period of time to consummate a business combination)).

 

3. During the period commencing
on the effective date of the Underwriting Agreement and ending 180 days after such date, the Sponsor and each Insider shall not, without
the prior written consent of the Representative, (i) sell, offer to sell, contract or agree to sell, hypothecate, pledge, grant any
option to purchase or otherwise dispose of or agree to dispose of, directly or indirectly, or establish or increase a put equivalent position
or liquidate or decrease a call equivalent position within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended
(the “Exchange Act”), and the rules and regulations of the Commission promulgated thereunder, with respect
to any Units, shares of Capital Stock, Warrants or any securities convertible into, or exercisable, or exchangeable for, shares of Common
Stock owned by it, him or her, (ii) enter into any swap or other arrangement that transfers to another, in whole or in part, any
of the economic consequences of ownership of any Units, shares of Capital Stock, Warrants or any securities convertible into, or exercisable,
or exchangeable for, shares of Common Stock owned by it, him or her, whether any such transaction is to be settled by delivery of such
securities, in cash or otherwise, or (iii) publicly announce any intention to effect any transaction specified in clause (i) or
(ii). Each of the Insiders and the Sponsor acknowledges and agrees that, prior to the effective date of any release or waiver of the restrictions
set forth in this paragraph 3 or paragraph 7 below, the Company shall announce the impending release or waiver by press release through
a major news service at least two business days before the effective date of the release or waiver. Any release or waiver granted shall
only be effective two business days after the publication date of such press release. The provisions of this paragraph will not apply
if (i) the release or waiver is effected solely to permit a transfer of securities that is not for consideration and (ii) the
transferee has agreed in writing to be bound by the same terms described in this Letter Agreement to the extent and for the duration that
such terms remain in effect at the time of the transfer.

 

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4. In the event of the liquidation
of the Trust Account, the Sponsor (which for purposes of clarification shall not extend to any other stockholders, members or managers
of the Sponsor) agrees to indemnify and hold harmless the Company against any and all loss, liability, claim, damage and expense whatsoever
(including, but not limited to, any and all legal or other expenses reasonably incurred in investigating, preparing or defending against
any litigation, whether pending or threatened, or any claim whatsoever) to which the Company may become subject as a result of any claim
by (i) any third party (other than the Company’s independent accountants) for services rendered or products sold to the Company
or (ii) a prospective target business with which the Company has entered into a letter of intent, confidentiality or other similar
agreement for a Business Combination agreement (a “Target”); provided, however, that such indemnification
of the Company by the Sponsor shall apply only to the extent necessary to ensure that such claims by a third party for services rendered
(other than the Company’s independent public accountants) or products sold to the Company or a Target do not reduce the amount of
funds in the Trust Account to below (i) $10.15 per Offering Share or (ii) such lesser amount per Offering Share held in the
Trust Account as of the date of the liquidation of the Trust Account, due to reductions in the value of the trust assets, in each case,
net of the amount of interest earned on the property in the Trust Account which may be withdrawn to pay taxes, except as to any claims
by a third party (including a Target) who executed a waiver of any and all rights to seek access to the Trust Account and except as to
any claims under the Company’s indemnity of the Underwriters against certain liabilities, including liabilities under the Securities
Act of 1933, as amended. In the event that any such executed waiver is deemed to be unenforceable against such third party, the Sponsor
shall not be responsible to the extent of any liability for such third party claims. The Sponsor shall have the right to defend against
any such claim with counsel of its choice reasonably satisfactory to the Company if, within 15 days following written receipt of notice
of the claim to the Sponsor, the Sponsor notifies the Company in writing that it shall undertake such defense.

 

5. To the extent that the
Underwriters do not exercise their over-allotment option to purchase up to an additional 2,250,000 Units within 30 days from the date
of the Prospectus (and as further described in the Prospectus), the Sponsor agrees to forfeit, at no cost, a number of Founder Shares
in the aggregate equal to 562,500. The forfeiture will be adjusted to the extent that the over-allotment option is not exercised in full
by the Underwriters so that the Initial Stockholders will own an aggregate of 20.0% of the Company’s issued and outstanding shares
of Capital Stock after the Public Offering (excluding up to 390,000 representative shares (or up to 450,000 shares if the underwriters’
over-allotment option is exercised in full)).

 

6. The Sponsor and each Insider
hereby agrees and acknowledges that: (i) the Underwriters and the Company would be irreparably injured in the event of a breach by
such Sponsor or an Insider of its, his or her obligations under paragraphs 1, 2, 3, 4, 5, 7(a), 7(b), and 9 of this Letter Agreement (ii) monetary
damages may not be an adequate remedy for such breach and (iii) the non-breaching party shall be entitled to injunctive relief, in
addition to any other remedy that such party may have in law or in equity, in the event of such breach.

 

7. (a) The Sponsor and each
Insider agrees that it, he or she shall not Transfer any Founder Shares until the earlier of (A) one year after the completion of
the Company’s initial Business Combination or (B) subsequent to the Company’s initial Business Combination, (x) if the
last sale price of the Common Stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock dividends, reorganizations,
recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after the consummation
of the Company’s initial Business Combination, or (y) the date on which the Company completes a liquidation, merger, capital stock
exchange, reorganization or other similar transaction that results in all of the Company’s stockholders having the right to exchange
their shares of Common Stock for cash, securities or other property.

 

    -3-

     

    

 

(b) The Sponsor and each Insider
agrees that it, he or she shall not Transfer any Private Placement Warrants (or shares of Common Stock issued or issuable upon the exercise
of the Private Placement Warrants) until 30 days after the completion of a Business Combination.

 

(c) Notwithstanding the provisions
set forth in paragraphs 7(a) and (b), Transfers of the Founder Shares, Private Placement Warrants, and shares of Common Stock issued
or issuable upon the exercise of the Private Placement Warrants that are held by the Sponsor, any Insider or any of their permitted transferees
(that have complied with this paragraph 7(c)), are permitted (i) to the Company’s officers or directors, any affiliates or
family members of any of the Company’s officers or directors, any affiliates of the Sponsor, any members of the Sponsor, or any
of their affiliates, officers, directors, direct and indirect equityholders; (ii) in the case of an individual, by gift to a member
of the individual’s immediate family, to a trust, the beneficiary of which is a member of the individual’s immediate family
or an affiliate of such person, or to a charitable organization; (iii) in the case of an individual, transfers by virtue of laws
of descent and distribution upon death of the individual; (iv) in the case of an individual, transfers pursuant to a qualified domestic
relations order; (v) by private sales or transfers made in connection with the consummation of a Business Combination at prices no
greater than the price at which the shares were originally purchased; (vi) in case of an entity, as a distribution to its partners,
shareholders, officers or members upon its liquidation; and (vii) by virtue of the laws of the State of Delaware or the Sponsor’s
limited liability company agreement upon dissolution of the Sponsor; provided, however, that in the case of clauses (i) through
(vii), these permitted transferees must enter into a written agreement agreeing to be bound by the restrictions herein.

  

8. The Sponsor and each Insider
represents and warrants that it, he or she has never been suspended or expelled from membership in any securities or commodities exchange
or association or had a securities or commodities license or registration denied, suspended or revoked. Each Insider’s biographical
information furnished to the Company (including any such information included in the Prospectus) is true and accurate in all respects
and does not omit any material information with respect to the Insider’s background. The Sponsor and each Insider’s questionnaire
furnished to the Company is true and accurate in all respects. The Sponsor and each Insider represents and warrants that: it, he or she
is not subject to or a respondent in any legal action for, any injunction, cease-and-desist order or order or stipulation to desist or
refrain from any act or practice relating to the offering of securities in any jurisdiction; it, he or she has never been convicted of,
or pleaded guilty to, any crime (i) involving fraud, (ii) relating to any financial transaction or handling of funds of another
person, or (iii) pertaining to any dealings in any securities and it, he or she is not currently a defendant in any such criminal
proceeding.

 

9. Except as disclosed in
the Prospectus, neither the Sponsor nor any Insider nor any affiliate of the Sponsor or any Insider, nor any director or officer of the
Company, shall receive from the Company any finder’s fee, reimbursement, consulting fee, monies in respect of any repayment of a
loan or other compensation prior to, or in connection with any services rendered in order to effectuate the consummation of the Company’s
initial Business Combination (regardless of the type of transaction that it is), other than the following, none of which will be made
from the proceeds held in the Trust Account prior to the completion of the initial Business Combination: repayment of a loan and advances
up to an aggregate of $600,000 made to the Company by the Sponsor; payment to an affiliate of Max Hooper, the Company’s Chief Executive
Officer and/or Jonathan Morris, the Company’s Chief Financial Officer, for a total of $5,000 per month; reimbursement for any out-of-pocket
expenses related to identifying, investigating and consummating an initial Business Combination; and repayment of loans, if any, and on
such terms as to be determined by the Company from time to time, made by the Sponsor or any of the Company’s officers or directors
to finance transaction costs in connection with an intended initial Business Combination, provided, that, if the Company
does not consummate an initial Business Combination, a portion of the working capital held outside the Trust Account may be used by the
Company to repay such loaned amounts so long as no proceeds from the Trust Account are used for such repayment. Up to $1,500,000 of such
loans may be convertible into warrants at a price of $1.00 per warrant at the option of the lender. Such warrants would be identical to
the Private Placement Warrants, including as to exercise price, exercisability and exercise period.

 

10. The Sponsor and each Insider
has full right and power, without violating any agreement to which it is bound (including, without limitation, any non-competition or
non-solicitation agreement with any employer or former employer), to enter into this Letter Agreement and, as applicable, to serve as
an officer and/or a director of the Company and hereby consents to being named in the Prospectus as an officer and/or a director of the
Company.

 

    -4-

     

    

 

11. As used herein, (i) “Business
Combination” shall mean a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business
combination, involving the Company and one or more businesses; (ii) “Capital Stock” shall mean, collectively,
the Common Stock and the Founder Shares; (iii) “Founder Shares” shall mean the 4,312,500 shares of the
Company’s common stock, par value $0.0001 per share, held by the Sponsor (up to an aggregate of 562,500 shares of which are subject
to complete or partial forfeiture by the Sponsor if the over-allotment option is not exercised in full by the Underwriters); (iv) “Initial
Stockholders” shall mean the Sponsor and any other holder of Founder Shares immediately prior to the Public Offering; (v) “Private
Placement Warrants” shall mean the warrants to purchase up to an aggregate of 7,750,000 shares of Common Stock of the Company
(or 8,537,500 shares of Common Stock if the over-allotment option is exercised in full) that the Sponsor and the Underwriters have agreed
to purchase for an aggregate purchase price of $7,750,000 in the aggregate (or $8,537,500 if the over-allotment option is exercised in
full), or $1.00 per warrant, in a private placement that shall occur simultaneously with the consummation of the Public Offering; (vi)
“Public Stockholders” shall mean the holders of securities issued in the Public Offering; (vii) “Trust
Account” shall mean the trust fund into which a portion of the net proceeds of the Public Offering and the sale of the Private
Placement Warrants shall be deposited; and (viii) “Transfer” shall mean the (a) sale or assignment
of, offer to sell, contract or agreement to sell, hypothecate, pledge, grant of any option to purchase or otherwise dispose of or agreement
to dispose of, directly or indirectly, or establishment or increase of a put equivalent position or liquidation with respect to or decrease
of a call equivalent position within the meaning of Section 16 of the Exchange Act and the rules and regulations of the Commission
promulgated thereunder with respect to, any security, (b) entry into any swap or other arrangement that transfers to another, in
whole or in part, any of the economic consequences of ownership of any security, whether any such transaction is to be settled by delivery
of such securities, in cash or otherwise, or (c) public announcement of any intention to effect any transaction specified in clause
(a) or (b).

  

12. This Letter Agreement
constitutes the entire agreement and understanding of the parties hereto in respect of the subject matter hereof and supersedes all prior
understandings, agreements, or representations by or among the parties hereto, written or oral, to the extent they relate in any way to
the subject matter hereof or the transactions contemplated hereby. This Letter Agreement may not be changed, amended, modified or waived
(other than to correct a typographical error) as to any particular provision, except by a written instrument executed by all parties hereto.

 

13. No party hereto may assign
either this Letter Agreement or any of its rights, interests, or obligations hereunder without the prior written consent of the other
parties. Any purported assignment in violation of this paragraph shall be void and ineffectual and shall not operate to transfer or assign
any interest or title to the purported assignee. This Letter Agreement shall be binding on the Sponsor and each Insider and their respective
successors, heirs and assigns and permitted transferees.

 

14. Nothing in this Letter
Agreement shall be construed to confer upon, or give to, any person or corporation other than the parties hereto any right, remedy or
claim under or by reason of this Letter Agreement or of any covenant, condition, stipulation, promise or agreement hereof. All covenants,
conditions, stipulations, promises and agreements contained in this Letter Agreement shall be for the sole and exclusive benefit of the
parties hereto and their successors, heirs, personal representatives and assigns and permitted transferees.

 

    -5-

     

    

 

15. This Letter Agreement
may be executed in any number of original or facsimile counterparts and each of such counterparts shall for all purposes be deemed to
be an original, and all such counterparts shall together constitute but one and the same instrument.

 

16. This Letter Agreement
shall be deemed severable, and the invalidity or unenforceability of any term or provision hereof shall not affect the validity or enforceability
of this Letter Agreement or of any other term or provision hereof. Furthermore, in lieu of any such invalid or unenforceable term or provision,
the parties hereto intend that there shall be added as a part of this Letter Agreement a provision as similar in terms to such invalid
or unenforceable provision as may be possible and be valid and enforceable.

 

17. This Letter Agreement
shall be governed by and construed and enforced in accordance with the laws of the State of New York, without giving effect to conflicts
of law principles that would result in the application of the substantive laws of another jurisdiction. The parties hereto (i) all
agree that any action, proceeding, claim or dispute arising out of, or relating in any way to, this Letter Agreement shall be brought
and enforced in the courts of New York City, in the State of New York, and irrevocably submit to such jurisdiction and venue, which jurisdiction
and venue shall be exclusive and (ii) waive any objection to such exclusive jurisdiction and venue or that such courts represent
an inconvenient forum.

 

18. Any notice, consent or
request to be given in connection with any of the terms or provisions of this Letter Agreement shall be in writing and shall be sent by
express mail or similar private courier service, by certified mail (return receipt requested), by hand delivery or facsimile transmission.

 

[Signature Page Follows]

 

    -6-

     

    

 

	 	Sincerely,
	 	 	 
	 	GLOBAL BLOCKCHAIN ACQUISITION CORP.
	 	 	 
	 	By:	/s/ Max Hooper
	 	 	Name:  	Max Hooper
	 	 	Title: 	Chief Executive Officer
	 	 	 
	 	GLOBAL BLOCKCHAIN SPONSOR, LLC
	 	 	 
	 	By:	/s/ Max Hooper
	 	 	Name: 	Max Hooper
	 	 	Title:	 Manager
	 	 	 
	 	I-BANKERS SECURITIES, INC.
	 	 	 
	 	By: 	/s/ Shelley Leonard 
	 	 	Name:	 Shelley Leonard
	 	 	Title: 	 President 
	 	 	 
	 	DAWSON JAMES SECURITIES, INC.
	 	 	 
	 	By: 	/s/ Robert D. Keyser, Jr. 
	 	 	Name: 	Robert D. Keyser, Jr.
	 	 	Title:	 Chief Executive Officer 
	 	 	 
	 	 	/s/ Max Hooper 
	 	 	Max Hooper
	 	 	 
	 	 	/s/ Jonathan Morris 
	 	 	Jonathan Morris
	 	 	 
	 	 	/s/ David Metcalf 
	 	 	David Metcalf
	 	 	 
	 	 	/s/ Allen Weiss 
	 	 	Allen Weiss
	 	 	 
	 	 	/s/ David Ruttenberg
	 	 	David Ruttenberg
	 	 	 
	 	 	/s/ Katya Fisher 
	 	 	Katya Fisher
	 	 	 
	 	 	/s/ Chris Ensey 
	 	 	Chris Ensey
	 	 	 
	 	 	/s/ Paul C. Jeffries 
	 	 	Paul C. Jeffries  

 

[Signature Page to Letter Agreement]

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