<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0123-4366</journal-id>
<journal-title><![CDATA[Revista de Derecho Privado]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Derecho Privado]]></abbrev-journal-title>
<issn>0123-4366</issn>
<publisher>
<publisher-name><![CDATA[Universidad Externado de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-43662020000200175</article-id>
<article-id pub-id-type="doi">10.18601/01234366.n39.08</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Blockchain y contratos inteligentes: aproximación a sus problemáticas y retos jurídicos]]></article-title>
<article-title xml:lang="en"><![CDATA[Blockchain and Smart Contracts. Approach to their Legal Problems and Challenges]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[PADILLA SÁNCHEZ]]></surname>
<given-names><![CDATA[JORGE ALBERTO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Externado de Colombia  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<numero>39</numero>
<fpage>175</fpage>
<lpage>201</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-43662020000200175&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-43662020000200175&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-43662020000200175&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN. El desarrollo de tecnologías blockchain ha permitido la creación de nuevas formas de ejecución automática de obligaciones contractuales mediante los mal denominados "contratos inteligentes" (smart contracts). Las características propias de la blockchain, esto es, su lenguaje de código, la desintermediación, autonomía e inmutabilidad, crean nuevas problemáticas asociadas a la ejecución contractual mediante contratos inteligentes; y al mismo tiempo implican retos para los actores involucrados, así como para los reguladores. El presente artículo tiene como objeto servir de introducción al análisis de las problemáticas asociadas a la tecnología blockchain y a los contratos inteligentes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT. The development of blockchain and distributed ledger technologies has allowed the creation of new forms of self-execution of contractual obligations through the so-called "smart contracts". The characteristics of the blockchain, that is, its code language, disintermediation, autonomy and immutability, create new problems associated with contractual execution through smart contracts; and, at the same time, they imply challenges for the actors involved, as well as for the regulators. The purpose of this article is to introduce the analysis of the problems associated with blockchain and smart contracts.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[blockchain]]></kwd>
<kwd lng="es"><![CDATA[sistemas de registro distribuido]]></kwd>
<kwd lng="es"><![CDATA[contrato inteligente]]></kwd>
<kwd lng="es"><![CDATA[ejecución automática]]></kwd>
<kwd lng="es"><![CDATA[codificación]]></kwd>
<kwd lng="en"><![CDATA[blockchain]]></kwd>
<kwd lng="en"><![CDATA[distributed ledger techonologies]]></kwd>
<kwd lng="en"><![CDATA[smart contracts]]></kwd>
<kwd lng="en"><![CDATA[self-enforcement]]></kwd>
<kwd lng="en"><![CDATA[contractware]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[ARNER]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Evolution of Fintech: A New Post-Crisis Paradigm?]]></article-title>
<source><![CDATA[University of Hong Kong Faculty of Law]]></source>
<year>2015</year>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BACINA]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[When Two Worlds Collide: Smart Contracts and the Australian Legal System]]></article-title>
<source><![CDATA[Journal of Internet Law]]></source>
<year>2018</year>
<volume>21</volume>
<numero>8</numero>
<issue>8</issue>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[BUTERIN]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ethereum White Paper: A Next Generation Smart Contract and Decentralized Application Platform]]></source>
<year>2015</year>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[CARLILE]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[To the Republicans of the Island of Great Britain]]></article-title>
<source><![CDATA[Republican]]></source>
<year>1822</year>
<numero>16</numero>
<issue>16</issue>
<page-range>V</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[CATCHLOVE]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Smart Contracts: A New Era of Contract Use]]></article-title>
<source><![CDATA[Independent Research Project]]></source>
<year>2017</year>
<page-range>LLH473</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[CORRALES]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Digital Technologies, Legal Design and the Future of the Legal Profession]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[CORRALES]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Legal Tech, Smart Contracts and Block-chain]]></source>
<year>2019</year>
<publisher-name><![CDATA[Springer Nature]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[CORREDOR HIGUERA]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<name>
<surname><![CDATA[DÍAZ GUZMAN]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Blockchain y mercados financieros: aspectos generales del impacto regulatorio de la aplicación de la tecnología Blockchain en los mercados de crédito de América Latina]]></article-title>
<source><![CDATA[Revista de la Facultad de Derecho PUCP]]></source>
<year>2018</year>
<numero>81</numero>
<issue>81</issue>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DE FILIPPI]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[WRIGHT]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Blockchain and the Law. The Rule of Code]]></source>
<year>2018</year>
<publisher-name><![CDATA[Harvard University Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[DEL CASTILLO IONOV]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Las Initial Coin Offerings (icos) y la tokenización de la economía]]></source>
<year>2018</year>
<publisher-loc><![CDATA[Aranzadi ]]></publisher-loc>
<publisher-name><![CDATA[Thomson Reuters]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[GAVIRIA GIL]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sobre la aplicación de la teoría del incumplimiento eficiente de contratos en el derecho colombiano]]></article-title>
<source><![CDATA[Revista Con-texto]]></source>
<year>2015</year>
<numero>44</numero>
<issue>44</issue>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[GEOGHEGAN]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A Brief History of Book Vending Machines]]></article-title>
<source><![CDATA[The Huffington Post]]></source>
<year>2013</year>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[HAYES]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[TASCA]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Blockchains y criptodivisas]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[CHISHTI]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[BARBERIS]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[El futuro es Fintech]]></source>
<year>2016</year>
<publisher-name><![CDATA[Ediciones Deusto]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[LEVI]]></surname>
<given-names><![CDATA[S. D.]]></given-names>
</name>
<name>
<surname><![CDATA[LIPTON]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[An Introduction to Smart Contracts and Their Potential and Inherent Limitations]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[LIPTON]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Toward a Stable Tokenized Medium of Exchange]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[BRUMMER]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Cryptoassets. Legal, Regulatory and Monetary Perspectives]]></source>
<year>2019</year>
<publisher-loc><![CDATA[Oxford ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MCJOHN]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[MCJOHN]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Commercial Law of Bitcoin and Blockchain Transactions]]></article-title>
<source><![CDATA[Legal Studies Research Paper Series]]></source>
<year>2017</year>
<numero>16-13</numero>
<issue>16-13</issue>
<publisher-name><![CDATA[Suffolk University Law School, Research Paper]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MENDELSON]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[From Initial Coin Offerings to Security Tokens: A U. S. Federal Securities Law Analysis]]></article-title>
<source><![CDATA[Stan. Tech. L. Rev]]></source>
<year>2019</year>
<numero>52</numero>
<issue>52</issue>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[MIK]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Smart Contracts: Terminology, Technical Limitations and Real World Complexity]]></article-title>
<source><![CDATA[Law, Innovations and Technology]]></source>
<year>2017</year>
<volume>9</volume>
<numero>2</numero>
<issue>2</issue>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[OLIVER]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[JACCARD]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Smart Contracts and the Role of Law]]></article-title>
<source><![CDATA[Jusletter IT]]></source>
<year>2017</year>
<volume>23</volume>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[PERUGINI]]></surname>
<given-names><![CDATA[M. L.]]></given-names>
</name>
<name>
<surname><![CDATA[DAL CHECCO]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<source><![CDATA[Smart Contracts: a Preliminary Evaluation]]></source>
<year>2015</year>
<publisher-name><![CDATA[Université di Bologna]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[RASKIN]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Law and Legality of Smart Contracts]]></article-title>
<source><![CDATA[Georgetown Law Technology Review]]></source>
<year>2017</year>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[RODRIGUES]]></surname>
<given-names><![CDATA[U. R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Law and the Blockchain]]></article-title>
<source><![CDATA[Iowa Law Review]]></source>
<year>2019</year>
<volume>104</volume>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[SELIGMAN]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Moral Diversity and Efficient Breach]]></article-title>
<source><![CDATA[Michigan Law Review]]></source>
<year>2019</year>
<volume>117</volume>
<numero>5</numero>
<issue>5</issue>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[SKLAROFF]]></surname>
<given-names><![CDATA[J. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Smart Contracts and the Cost of Inflexibility]]></article-title>
<source><![CDATA[University of Pennsylvania Law Review]]></source>
<year>2017</year>
<volume>166</volume>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[SZABO]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Formalizing and Securing Relationships on Public Networks]]></article-title>
<source><![CDATA[First Monday]]></source>
<year>1997</year>
<volume>2</volume>
<numero>9</numero>
<issue>9</issue>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[SZABO]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Smart Contracts: Building Block for Digital Markets]]></article-title>
<source><![CDATA[Phonetic Sciences Amsterdam]]></source>
<year>1996</year>
</nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[TAPSCOTT]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[TAPSCOTT]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Salmerón]]></surname>
<given-names><![CDATA[J. M]]></given-names>
</name>
</person-group>
<source><![CDATA[La revolución blockchain]]></source>
<year>2016</year>
<publisher-loc><![CDATA[Barcelona ]]></publisher-loc>
<publisher-name><![CDATA[Ediciones Deusto]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
