<SEC-DOCUMENT>0000929638-25-003693.txt : 20250930
<SEC-HEADER>0000929638-25-003693.hdr.sgml : 20250930
<ACCEPTANCE-DATETIME>20250930205435
ACCESSION NUMBER:		0000929638-25-003693
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250929
FILED AS OF DATE:		20250930
DATE AS OF CHANGE:		20250930

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Kirkwood Jonathan
		CENTRAL INDEX KEY:			0002057403
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42873
		FILM NUMBER:		251362195

	MAIL ADDRESS:	
		STREET 1:		C/O FOLD HOLDINGS, INC. UNIT 42035 85028
		STREET 2:		11201 NORTH TATUM BLVD., SUITE 300
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85028

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BTC Development Corp.
		CENTRAL INDEX KEY:			0002042292
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		EIN:				981816717
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2929 ARCH STREET, SUITE 1703
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19104
		BUSINESS PHONE:		(215) 701-9555

	MAIL ADDRESS:	
		STREET 1:		2929 ARCH STREET, SUITE 1703
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19104

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Emerald Acquisition Corp. II
		DATE OF NAME CHANGE:	20241023
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>form3.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-09-29</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0002042292</issuerCik>
        <issuerName>BTC Development Corp.</issuerName>
        <issuerTradingSymbol>BDCI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002057403</rptOwnerCik>
            <rptOwnerName>Kirkwood Jonathan</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2929 ARCH STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1703</rptOwnerStreet2>
            <rptOwnerCity>PHILADELPHIA</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19104</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Ordinary Shares</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>512500</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By BTC Development Sponsor LLC</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Class B Ordinary Shares</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Ordinary Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4590334</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F8"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By BTC Development Sponsor LLC</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Warrants</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11.5</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F6"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Ordinary Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>128125</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F7"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By BTC Development Sponsor LLC</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">These shares underlie 512,500 units of the issuer that BTC Development Sponsor LLC has irrevocably committed to purchase.</footnote>
        <footnote id="F2">The reporting person disclaims beneficial ownership of these securities, except to the extent of her pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for any other purpose.</footnote>
        <footnote id="F3">These shares are held directly by one of the issuer's sponsors, BTC Development Sponsor LLC, which is managed by the reporting person.</footnote>
        <footnote id="F4">The Class B ordinary shares will automatically convert into Class A ordinary shares at the time of the issuer's initial business combination, or at any time and from time to time at the option of the holder, on a one-for-one basis, subject to certain adjustments described in the issuer's charter documents and have no expiration date.</footnote>
        <footnote id="F5">The warrants will become exercisable at the later of 30 days after the consummation of the issuer's initial business combination or 12 months from the completion of the issuer's initial public offering.</footnote>
        <footnote id="F6">The warrants will expire five years after the consummation of the issuer's initial business combination or earlier upon redemption of all of the issuer's outstanding Class A ordinary shares or the issuer's liquidation.</footnote>
        <footnote id="F7">These warrants underlie 512,500 units of the issuer that BTC Development Sponsor LLC has irrevocably committed to purchase.</footnote>
        <footnote id="F8">Includes up to 1,100,000 shares that are subject to forfeiture in the event the underwriters of the issuer's initial public offering do not exercise in full their over-allotment option.</footnote>
    </footnotes>

    <remarks>Exhibit 24 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ R. Maxwell Smeal, Attorney-in-fact</signatureName>
        <signatureDate>2025-09-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>exhibit24.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
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  <div style="text-align: right;"><font style="font-weight: bold;">Exhibit 24</font><br>
  </div>
  <div> <br>
  </div>
  <div>
    <div style="text-align: center; font-weight: bold;"> <br>
    </div>
    <div style="text-align: center; font-weight: bold;">LIMITED POWER OF ATTORNEY FOR SECTION 16 REPORTING OBLIGATION</div>
    <div><br>
    </div>
    <div>&#160;</div>
    <div style="text-indent: 36pt;">I, Jonathan Kirkwood, hereby make, constitute and appoint each of Bracebridge H. Young, Jr. or R. Maxwell Smeal, as well as any person
      holding the title of Chief Executive Officer, Chief Financial Officer, Secretary or Treasurer of BTC Development Corp. (the &#8220;Company&#8221;), as my true and lawful attorney-in-fact to:</div>
    <div>&#160;</div>
    <div style="margin-left: 36pt;">(1)<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" class="TRGRRTFtoHTMLTab">&#160;</font> execute for and on my behalf, in my capacity as an officer of the Company, Forms 3, 4, and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934 and the
        rules thereunder (the &#8220;Exchange Act&#8221;);</div>
    <div>&#160;</div>
    <div style="margin-left: 36pt;">(2)<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" class="TRGRRTFtoHTMLTab">&#160;</font> do and perform any and all acts for and on behalf of the undersigned which may be necessary or desirable to complete and execute any such Forms 3, 4, or 5, complete and execute
        any amendment(s) thereto, and timely file such form with the United States Securities and Exchange Commission and any stock exchange or similar authority; and</div>
    <div>&#160;</div>
    <div style="margin-left: 36pt;">(3)<font style="display: inline-block; text-indent: 0px; font-size: 1px; width: 36pt" class="TRGRRTFtoHTMLTab">&#160;</font>take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or
        legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such
        attorney-in-fact may approve in such attorney-in-fact&#8217;s discretion.</div>
    <div>&#160;</div>
    <div style="text-indent: 36pt;">The undersigned hereby grants to such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever
      requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation,
      hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact&#8217;s substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted. The undersigned
      acknowledges that the foregoing attorney-in-fact, in serving in such capacity at the request of the undersigned, is not assuming, nor is the Company assuming, any of the undersigned&#8217;s responsibilities to comply with Section 16 of the Exchange Act.</div>
    <div>&#160;</div>
    <div style="text-indent: 36pt;">This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4, and 5 with
      respect to the undersigned&#8217;s holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorney-in-fact.</div>
    <div>&#160;</div>
    <div style="text-indent: 36pt;">IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 28<sup style="vertical-align: text-top; line-height: 1; font-size: smaller;">th</sup> day of September, 2025.</div>
    <div>&#160;</div>
    <div><br>
    </div>
    <div style="text-indent: 36pt;">By: <u>/s/ Jonathan Kirkwood __</u></div>
    <div style="text-indent: 36pt;">Name: Jonathan Kirkwood</div>
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