A revolução tecnológica na área da computação e da Internet trouxe modificações importantes nos mais variados setores da sociedade. Atualmente, a maioria das transações financeiras ocorre virtualmente, nesse contexto surgiu a moeda digital Bitcoin. O conceito desta moeda foi introduzido em 2008 e pode ser descrito como a primeira criptomoeda descentralizada do mundo. As transações em Bitcoin ocorrem sem a necessidade de um intermediário e não dependem da confiança em nenhum emissor centralizado ou instituição financeira. Ao longo deste trabalho serão expostas as características, o funcionamento, as vantagens e desvantagens desta nova moeda, contrastando-a à moeda tradicional de cunho forçado. O objetivo principal é observar se essa nova tecnologia pode ser uma alternativa concorrente aos meios tradicionais, até o ponto de substituir por completo as moedas usadas nos dias de hoje, centralizadas em bancos centrais, ou se a criptomoeda será uma aliada cooperativa à moeda tradicional. Conclui-se que o Bitcoin é no curto e médio prazo uma moeda paralela, ou seja, que coopera e é aliada aos meios tradicionais.
O artigo visa entender quais as possíveis respostas a serem dadas pelo Direito em relação à criação do bitcoin. O trabalho explica, propedeuticamente, e, através da análise da legislação comparada, a história da moeda, suas consequências econômicas, as mudanças paradigmáticas ocorridas e, por fim, reflete sobre as teses doutrinárias apontadas, por parte do mundo jurídico, como solução à criação da moeda. O objetivo geral do trabalho é analisar as consequências econômicas do novo sistema de pagamento, assim como explorar as possíveis hipóteses, para regulamentar as transações com a moeda criptográfica, que permanecem em uma área cinza, ainda não completamente atingida pelo Direito. A conclusão do trabalho é que o Estado deve incluir a moeda em suas regulamentações, inicialmente, lidando apenas com à evasão tributária, com a sua possível ligação com o mercado ilegal e com a licença, para trocar tais moedas e, posteriormente, regulamentar aspectos que requerem uma minúcia maior, como a proteção dos direitos dos consumidores.Palavras-chave: Bitcoin. Criptografia. Regulamentação.
The study analyzes the "International Law and the constitution of Mozambique: Consensus and dissent in the light of the Global Legal pluralism". This reflective analysis will converge in the problem of the internationalization of law in contemporary society, i.e., the interaction between International Law and the Constitutional Law in the light of the global legal pluralism. After reflecting on past political, economic and social changes, it is concluded that, on the one hand, constitutionalism is neither limited nor satisfied only with the structure of the state legal space (national) and its legal order. On the other hand, International Law is no longer limited to issues related to global international policy. The phenomenon of emerging globalization has created a challenge to the international law as to the idea of a pluralist synchronization and polycentric notion of Law that could respect the legal diversity or legal specificity, within the global Legal Pluralism. The older idea of International Law entered into crisis for not having achieved the unity and cohesion within the global legal system. This crisis driven by the polycentric force of globalization dictated the diversification and the expansion of international law. This diversification has imposed the constitution and strengthening of various autonomous international legal regimes, the multiplication of organs of international conflicts resolution and the emergence of a new normative configuration. With the emergence of new instances of international and global legal production, the debate on the internationalization of Law imposes itself as an urgent need, in the framework of the globalization process and the global legal pluralism. The great debate today, on this theme, departed from general International Law and is set in the context of the new global international legal order. The debate on the internationalization of law took two aspects: one on the protagonism of new instances of autonomous global and international legal production and its influence in the construction of the global international legal order. Another aspect is that of regional economic and political blocks and of organizations and institutions of humanitarian aid and development, under the same prism. This debate brings back the old or new problem of interaction between International Law and the Constitutional Law in the new global international legal order, i.e., the problem of internationalization of national law. In fact, some international rules emanating from autonomous international legal production organs, within the framework of hegemonic globalization, are imposed directly to citizens and States, sometimes without knowledge of such rules, or of its existence. The action of these organs or agents can be considered as a latching and destructive phenomenon within the national legal orders? These rules are imposed on citizens and States not only as strategies or means of operationalization of flows, for the success of the process of globalization and economic development, but also, sometimes, for unclear purposes and within wide range economic interests. With the introduction of the new international legal regimes, the relationship with National Law has decentralized, thus creating a polycentrism, where each regime seeks to draw to itself the protagonism. This phenomenon has created conflicts within National Law and between the various legal systems. It is noted that each legal regime has its specific rules of internationalization of law. The National Law, in the face of this diversity, must meet several distinct rules and sometimes contradictory. There are times when the same matter is subject to various internationalizations by different legal regimes and through distinct rules to that effect. The proliferation of various regimes and agents in the internationalization of Law has weakened the policies and measures of protection and rule production in peripheral States because of the overlap and complexity of the phenomenon. In this new global legal order, unfortunately, we are witnessing the phenomenon of international legislative hegemony led by the major powers with regard to the demands of globalisation. This unusual phenomenon, lived in the global society, is translated into anti-constitutional and anti-democratic practices in the creation and internationalization of law in peripheral countries. The study starts from the analysis of the relationship between international law and the constitution of Mozambique and returns to the debate on the problem of the relationship between International and National Law, in the framework of the new global international legal order.
Feroz Ahmad Ahmad, Prashant Kumar, Gulshan Shrivastava, Med Salim Bouhlel
ON 12 JANUARY 2009 a pseudonymous entity signed a transaction that instructed a distributed network to transfer a small amount of digital currency to Hal Finney, one ofthe key figures of the cypherpunk movement. After a few minutes, the transaction was recorded on a distributed public ledger, permanently updating the balance ofbothparties. This transaction— the first Bitcoin transaction—marked the beginning of a new era of decentralized payment systems, ushering in a variety of financial Services that do not depend on any centralized clearinghouse or other financial middleman. Bitcoin is regarded by many as a powerful technological innovation that could disrupt many sectors, in the realm of finance and beyond. But the underlying technology on which the network operates, the Bitcoin blockchain can do much more than that. Just as the internet did in the early-1990s, blockchain technology carries with it a whole new range of promises concerning how decentralization can support and promote individual freedoms and autonomy. Blockchain proponents believe that Bitcoin and other cryptocurrency platforms will revolutionize mechanisms of value exchange in the same way that the internet transformed information sharing, by providing a platform for people to exchange digital resources, in a secure and decentralized manner without the need to rely on any intermediary or trusted authority. But this revolutionary potential also carries with it serious implications for censorship, intellectual property, and the regulated flow of information. A blockchain is a decentralized database of transactions maintained by a distributed network of computers, which all contribute to the verification and the validation of transactions. Once accepted, these transactions are recorded inside a “block” of transactions, which incorporates a reference to previous blocks. This creates a long chain of blocks—a “blockchain”—that stores the history of all transactions in a chronological order. Every block contains information about a particular set of transactions, a reference to the preceding block in the blockchain, and the answer to a complex mathematical puzzle that is used to validate the data associated with that block. A copy of the blockchain is stored on every computer in the network, making it virtually impossible for anyone unilaterally to modify the data stored on this decentralized database: if anyone tries to modify any transaction the fraud will be immediately detected by all other network participants.
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Blockchain Technology Applications and Security
Advanced Steganography and Watermarking Techniques
This dissertation is a study on the organization form of the Brazilian Unified Health System -Sistema nico de Sade (SUS) that, according to article 198 of the Brazilian Federal Constitution, is a system of federative interdependence managed by autonomous entities, as set forth under article 18 of such Constitution. It adopts an interdisciplinary approach, with emphasis in the legal standpoint and interpretation of the major guidelines of the Principles embedded in the Constitution and the protection of the Basic Human right to Health. There is an initial focus on the conceptual framework of Federalism and the traditions where the Brazilian Model got its background. The Brazilian State and its organization form and structure for the Health are scrutinized: the role of the Federal State, its centralistic imposition and influence on SUS' management. The study analyses how the characteristics of federative interdependence and mutual relationship, are harmed by the strong presence of central authority, the Federal Government, through the Brazilian Health Ministry. Concerning the SUS, the federal centralism is materialized through the form of its financing, since a large amount of resources that supports it is assigned by the federal Government to programs and projects determined by federal scope, prevailing over a federal or decentralized system. That situation has a strong impact on SUS' organization, defining its priorities rather by the sources of its financing than by global health planning, that should have as its foundation the peoples need for health. The interdependence and autonomy require solutions that reaches a compromise between these contradictions, assuring to SUS a legal and administrative structure that allow overcoming its contradictions, in order to bring together an efficient system. To achieve this purpose, some ideas are presented, ideas that attempt to reconcile all required elements to a management that guarantees to citizens the right to health.
The objective of this article is to discuss alternatives to finance investments by municipalities. In general, current revenues are insufficient to finance large investments, what brings about the necessity of municipal indebtedness. These could assume different manners, according to the nature of the investment: if it is typically public or if it offers private return. For the first case, we discuss the possibilities of a municipal bond market and, for the second, we discuss project finance and the participation of the private sector.