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Cadeia de blocos aplicada e sistemas distribuídos

Cadeia de blocos aplicada e sistemas distribuídos

M. Bagya Lakshmi / Y. Harold Robinson

72,27 €
IVA incluido
Disponible
Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
Materia
Tecnología: cuestiones generales
ISBN:
9786209783456
72,27 €
IVA incluido
Disponible

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Este livro de exercícios avançado completa a jornada de três anos da blockchain, explorando os aspectos internos da arquitetura - como os sistemas distribuídos alcançam a segurança sem uma autoridade central. O primeiro dia examina os primitivos criptográficos: o hashing cria impressões digitais em que mesmo pequenas alterações transformam os resultados, tornando evidente a adulteração. A encriptação assimétrica permite uma identidade auto-soberana - os utilizadores geram pares de chaves através da matemática em vez de pedirem autorização. As assinaturas digitais provam a propriedade sem revelar segredos. O segundo dia revela a anatomia dos blocos: As árvores Merkle resumem eficientemente milhares de transacções em raízes únicas armazenadas nos cabeçalhos. Os hashes anteriores criam cadeias em que a modificação de um bloco invalida todos os subsequentes - a fonte da imutabilidade. Os mecanismos de consenso resolvem o problema dos generais bizantinos: a prova de trabalho torna os ataques economicamente impossíveis através dos custos computacionais, enquanto as regras da cadeia mais longa resolvem as bifurcações temporárias. O Terceiro Dia anima a rede: os protocolos de difusão espalham as transacções exponencialmente sem servidores centrais. Os Mempools criam mercados de taxas onde os utilizadores competem pela inclusão.

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