bitcoin e blockchain -...
TRANSCRIPT
BITCOIN E BLOCKCHAINAPLICABILIDADE NO CONTEXTO DO
GOVERNO E CIDADANIA
DATAPREV
31.8.2017
Rosine Kadamani
CONTEXTO
UNICÓRNIO
S
TECNOLOGIA EM
DESTAQUE
Modelo de negócios revolucionário
PLATAFORMAS
EDUCAÇÃO
CULTURA
POLÍTICA
A revolução do bitcoin & blockchain
PÓS-PLATAFORMAS
Bitcoin: A Peer-to-Peer Electronic
Cash System
Satoshi [email protected]
www.bitcoin.org
A purely peer-to-peer version of electronic cash
would allow onlinepayments to be sent directly
from one party to another without going through
afinancial institution.
Digital signatures provide part of the solution, but the mainbenefits are
lost if a trusted third party is still required to prevent double-
spending.We propose a solution to the double-spending problem using
a peer-to-peer network.The network timestamps transactions by
hashing them into an ongoing chain ofhash-based proof-of-work,
forming a record that cannot be changed without redoingthe proof-of-
work. The longest chain not only serves as proof of the sequence
ofevents witnessed, but proof that it came from the largest pool of CPU
power. Aslong as a majority of CPU power is controlled by nodes that
are not cooperating toattack the network, they'll generate the longest
chain and outpace attackers. Thenetwork itself requires minimal
structure. Messages are broadcast on a best effortbasis, and nodes
can leave and rejoin the network at will, accepting the longestproof-of-
work chain as proof of what happened while they were gone.
BITCOIN BLOCKCHAIN
”Blockchain é a mais importante invenção desde a
Internet. A Internet mudou o jeito que transferimos
informações. O Blockchain está transformando a
maneira como nós transferimos valor.”
Marc Andreessen
General Partner at Andreessen Horowitz
e Cofounder Netscape Communications Corp.
GOVERNO E CIDADANIAAplicabilidade
INCENTIVO A UM NOVO MODELO DE RELAÇÕES
AUTOMÓVEI
S
Blockchain & IoT
PROTEÇÃO
COMPARTILHAD
A
Mutual.Life
GOVERNO
“We have a very clear objective to make
Dubai the capital of the blockchain industry.
By 2020, we’ll have 100 percent of
applicable government services and
transactions happen on blockchain.”Aisha Bin Bishr, director general of Smart Dubai, a government
office tasked with facilitating innovation in the emirateCryprocoins
News
DEMOCRACI
A DIRETA
“Mudamos”
REGISTROS DE
IMÓVEIS
Micro-transações(pagamentos, créditos)
INCLUSÃO SOCIAL
Transparência
em Doações
Banco no Celular
Identidade
TRANSPARÊNCI
A EM DOAÇÕES
IDENTIDADE
IDENTIDADE
“Desenvolver identidade digital para pessoas da favela
composta por informações financeiras e não financeiras,
formais e informais, e que permita promover a inclusao
financeira respeitando a privacidade individual. “
Rodolfo Andragnes – ONG Bitcoin Argentina
CONSIDERAÇÕES FINAIS
