    <SEC-DOCUMENT>0001213900-25-078198-index.html : 20250819
    <SEC-HEADER>0001213900-25-078198.hdr.sgml : 20250819
    <ACCEPTANCE-DATETIME>20250819092439
    ACCESSION NUMBER:		0001213900-25-078198
    CONFORMED SUBMISSION TYPE:	S-1
    PUBLIC DOCUMENT COUNT:		61
    FILED AS OF DATE:		20250819
    DATE AS OF CHANGE:		20250819

    FILER:

    	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

    	FILING VALUES:
    		FORM TYPE:		S-1
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-289705
    		FILM NUMBER:		251229838

    	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>S-1
    <SEQUENCE>1
    <FILENAME>ea0225715-06.htm
    <DESCRIPTION>REGISTRATION STATEMENT
    <TEXT>
    Document 1 - file: ea0225715-06.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-1.1
    <SEQUENCE>2
    <FILENAME>ea022571506ex1-1_btc.htm
    <DESCRIPTION>FORM OF UNDERWRITING AGREEMENT
    <TEXT>
    Document 2 - file: ea022571506ex1-1_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-3.1
    <SEQUENCE>3
    <FILENAME>ea022571506ex3-1_btc.htm
    <DESCRIPTION>AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION CURRENTLY IN EFFECT
    <TEXT>
    Document 3 - file: ea022571506ex3-1_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-3.2
    <SEQUENCE>4
    <FILENAME>ea022571506ex3-2_btc.htm
    <DESCRIPTION>FORM OF AMENDED AND RESTATED MEMORANDUM AND ARTICLES OF ASSOCIATION TO BE IN EFFECT AT THE CLOSING OF THE INITIAL PUBLIC OFFERING
    <TEXT>
    Document 4 - file: ea022571506ex3-2_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-4.1
    <SEQUENCE>5
    <FILENAME>ea022571506ex4-1_btc.htm
    <DESCRIPTION>SPECIMEN UNIT CERTIFICATE
    <TEXT>
    Document 5 - file: ea022571506ex4-1_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-4.2
    <SEQUENCE>6
    <FILENAME>ea022571506ex4-2_btc.htm
    <DESCRIPTION>SPECIMEN CLASS A ORDINARY SHARE CERTIFICATE
    <TEXT>
    Document 6 - file: ea022571506ex4-2_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-4.4
    <SEQUENCE>7
    <FILENAME>ea022571506ex4-4_btc.htm
    <DESCRIPTION>FORM OF WARRANT AGREEMENT BETWEEN CONTINENTAL STOCK TRANSFER & TRUST COMPANY AND THE REGISTRANT
    <TEXT>
    Document 7 - file: ea022571506ex4-4_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-5.1
    <SEQUENCE>8
    <FILENAME>ea022571506ex5-1_btc.htm
    <DESCRIPTION>OPINION OF MAPLES AND CALDER (CAYMAN) LLP, CAYMAN ISLANDS LEGAL COUNSEL TO THE REGISTRANT
    <TEXT>
    Document 8 - file: ea022571506ex5-1_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-5.2
    <SEQUENCE>9
    <FILENAME>ea022571506ex5-2_btc.htm
    <DESCRIPTION>OPINION OF MORGAN, LEWIS & BOCKIUS, COUNSEL TO THE REGISTRANT
    <TEXT>
    Document 9 - file: ea022571506ex5-2_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>10
    <FILENAME>ea022571506ex10-1_btc.htm
    <DESCRIPTION>PROMISSORY NOTE, DATED AS OF JULY 27, 2025 ISSUED TO BTC DEVELOPMENT SPONSOR LLC
    <TEXT>
    Document 10 - file: ea022571506ex10-1_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.2
    <SEQUENCE>11
    <FILENAME>ea022571506ex10-2_btc.htm
    <DESCRIPTION>FORM OF LETTER AGREEMENT AMONG THE REGISTRANT AND THE REGISTRANT'S SECURITYHOLDERS NAMED THEREIN, AND THE OFFICERS AND DIRECTORS OF THE REGISTRANT
    <TEXT>
    Document 11 - file: ea022571506ex10-2_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.3
    <SEQUENCE>12
    <FILENAME>ea022571506ex10-3_btc.htm
    <DESCRIPTION>FORM OF INVESTMENT MANAGEMENT TRUST AGREEMENT BETWEEN CONTINENTAL STOCK TRANSFER & TRUST COMPANY AND THE REGISTRANT
    <TEXT>
    Document 12 - file: ea022571506ex10-3_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.4
    <SEQUENCE>13
    <FILENAME>ea022571506ex10-4_btc.htm
    <DESCRIPTION>FORM OF REGISTRATION RIGHTS AGREEMENT BETWEEN THE REGISTRANT AND CERTAIN SECURITY HOLDERS
    <TEXT>
    Document 13 - file: ea022571506ex10-4_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.5
    <SEQUENCE>14
    <FILENAME>ea022571506ex10-5_btc.htm
    <DESCRIPTION>SECURITIES SUBSCRIPTION AGREEMENT, DATED AUGUST 11, 2025, BETWEEN THE REGISTRANT AND BTC DEVELOPMENT SPONSOR LLC
    <TEXT>
    Document 14 - file: ea022571506ex10-5_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.6
    <SEQUENCE>15
    <FILENAME>ea022571506ex10-6_btc.htm
    <DESCRIPTION>FORM OF PLACEMENT UNIT SUBSCRIPTION AGREEMENT BETWEEN THE REGISTRANT AND BTC DEVELOPMENT SPONSOR LLC
    <TEXT>
    Document 15 - file: ea022571506ex10-6_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.7
    <SEQUENCE>16
    <FILENAME>ea022571506ex10-7_btc.htm
    <DESCRIPTION>FORM OF PLACEMENT UNIT SUBSCRIPTION AGREEMENT BETWEEN THE REGISTRANT AND COHEN
    <TEXT>
    Document 16 - file: ea022571506ex10-7_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.8
    <SEQUENCE>17
    <FILENAME>ea022571506ex10-8_btc.htm
    <DESCRIPTION>FORM OF PLACEMENT UNIT SUBSCRIPTION AGREEMENT BETWEEN THE REGISTRANT AND KBW
    <TEXT>
    Document 17 - file: ea022571506ex10-8_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.9
    <SEQUENCE>18
    <FILENAME>ea022571506ex10-9_btc.htm
    <DESCRIPTION>FORM OF INDEMNITY AGREEMENT
    <TEXT>
    Document 18 - file: ea022571506ex10-9_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.10
    <SEQUENCE>19
    <FILENAME>ea022571506ex10-10_btc.htm
    <DESCRIPTION>FORM OF ADMINISTRATIVE SERVICES AGREEMENT, BY AND BETWEEN THE REGISTRANT AND BTC DEVELOPMENT SPONSOR LLC
    <TEXT>
    Document 19 - file: ea022571506ex10-10_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-14
    <SEQUENCE>20
    <FILENAME>ea022571506ex14_btc.htm
    <DESCRIPTION>FORM OF CODE OF ETHICS
    <TEXT>
    Document 20 - file: ea022571506ex14_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-23.1
    <SEQUENCE>21
    <FILENAME>ea022571506ex23-1_btc.htm
    <DESCRIPTION>CONSENT OF WITHUMSMITH+BROWN, PC
    <TEXT>
    Document 21 - file: ea022571506ex23-1_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>22
    <FILENAME>ea022571506ex99-1_btc.htm
    <DESCRIPTION>FORM OF AUDIT COMMITTEE CHARTER
    <TEXT>
    Document 22 - file: ea022571506ex99-1_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.2
    <SEQUENCE>23
    <FILENAME>ea022571506ex99-2_btc.htm
    <DESCRIPTION>FORM OF COMPENSATION COMMITTEE CHARTER
    <TEXT>
    Document 23 - file: ea022571506ex99-2_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.3
    <SEQUENCE>24
    <FILENAME>ea022571506ex99-3_btc.htm
    <DESCRIPTION>CONSENT OF JONATHAN KIRKWOOD
    <TEXT>
    Document 24 - file: ea022571506ex99-3_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.4
    <SEQUENCE>25
    <FILENAME>ea022571506ex99-4_btc.htm
    <DESCRIPTION>CONSENT OF ANDREW HOHNS
    <TEXT>
    Document 25 - file: ea022571506ex99-4_btc.htm

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    <DOCUMENT>
    <TYPE>EX-99.5
    <SEQUENCE>26
    <FILENAME>ea022571506ex99-5_btc.htm
    <DESCRIPTION>CONSENT OF GRANT GILLIAM
    <TEXT>
    Document 26 - file: ea022571506ex99-5_btc.htm

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    <DOCUMENT>
    <TYPE>EX-99.6
    <SEQUENCE>27
    <FILENAME>ea022571506ex99-6_btc.htm
    <DESCRIPTION>CONSENT OF BRACEBRIDGE H. YOUNG, JR
    <TEXT>
    Document 27 - file: ea022571506ex99-6_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.7
    <SEQUENCE>28
    <FILENAME>ea022571506ex99-7_btc.htm
    <DESCRIPTION>CONSENT OF HERSH KOZLOV
    <TEXT>
    Document 28 - file: ea022571506ex99-7_btc.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-FILING FEES
    <SEQUENCE>29
    <FILENAME>ea022571506ex-fee_btc.htm
    <DESCRIPTION>FILING FEE TABLE
    <TEXT>
    Document 29 - file: ea022571506ex-fee_btc.htm

    </DOCUMENT>
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    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>ex5-1_001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: ex5-1_001.jpg

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    <SEQUENCE>31
    <FILENAME>ex5-1_002.jpg
    <DESCRIPTION>GRAPHIC
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    Document 31 - file: ex5-1_002.jpg

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    <SEQUENCE>32
    <FILENAME>ex5-2_001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: ex5-2_001.jpg

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    <SEQUENCE>33
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    <DESCRIPTION>GRAPHIC
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    Document 33 - file: ex5-2_002.jpg

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    <SEQUENCE>34
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    <DESCRIPTION>GRAPHIC
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    Document 34 - file: ex5-2_003.jpg

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    <SEQUENCE>35
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    <DESCRIPTION>XBRL SCHEMA FILE
    <TEXT>
    Document 35 - file: ck0002042292-20250819.xsd

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    <SEQUENCE>36
    <FILENAME>ck0002042292-20250819_def.xml
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    <SEQUENCE>37
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