widely thought to be
multiple key signatures to approve a
transaction), but most users (still early
adopters, not mainstream) have not yet
upgraded to this level of security.
This book is intended as an exploration
of the broader concepts, features, and
functionality of Bitcoin and blockchain
technology, and their future possibilities
and implications; it does not support,
advocate, or offer any advice or
prediction as to the industry’s viability.
Further, this text is intended as a
presentation and discussion of advanced
concepts, because there are many other
“Blockchain 101” resources available.
The blockchain industry is in an
emergent and immature phase and very
much still in development with many
risks. Given this dynamism, despite our
best efforts, there may be errors in the
specific details of this text whereas even
a few days from now information might
be outdated; the intent here is to portray
the
blockchain industry and its possibilities.
Right now is the time to learn about the
underlying technologies; their potential
uses, dangers, and risks; and perhaps
more importantly, the concepts and their
extensibility. The objective here is to
provide a comprehensive overview of
the nature, scope, and type of activity
that is occurring in the cryptocurrency
industry and envision its wide-ranging
potential application. The account is
necessarily incomplete, prone to
technical errors (though it has been
reviewed for technical accuracy by
experts), and, again, could likely soon
be out-of-date as different projects
described here fail or succeed. Or, the
entire Bitcoin and blockchain technology
industry as currently conceived could
become outmoded or superseded by
other models.
The underlying sources of this work are
a variety of information resources
related to Bitcoin and its development.
The principal sources are developer
forums, Reddit subgroups, GitHub white
papers, podcasts, news media, YouTube,
blogs, and Twitter. Specific online
resources include Bitcoin industry
conference proceedings on YouTube and
Slideshare, podcasts (Let’s Talk Bitcoin,
Consider This!, Epicenter Bitcoin),
EtherCasts (Ethereum), Bitcoin-related
news outlets (
StackExchange, Quora). Other sources
were email exchanges and conversations
with practitioners in the industry as well
as my experiences attending
conferences, Bitcoin workshops, Satoshi
Square trading sessions, and developer
meetups.
This work is structured to discuss three
different tiers in the way that the
conceptualization of Bitcoin and
blockchain technology is starting to gel:
Blockchain 1.0, 2.0, and 3.0. First, I
cover the basic definitions and concepts
of Bitcoin and blockchain technology,
and currency and payments as the core
Blockchain 1.0 applications. Second, I
describe Blockchain 2.0—market and
financial applications beyond currency,
such as contracts. I then envision
Blockchain 3.0, meaning blockchain
applications beyond currency, finance,
and markets. Within this broad category
are justice applications such as
blockchain governance, uplifting
organizations (like WikiLeaks, ICANN,
and DNS services) away from
repressive jurisdictional regimes to the
decentralized cloud, protection of IP,
and digital identity verification and
authentication. Fourth, I consider another
class of Blockchain 3.0 applications
beyond currency, finance, and markets,
for which the blockchain model offers
scale, efficiency, organization, and
coordination benefits in the areas of
science, genomics, health, learning,
academic publishing, development, aid,
and culture. Finally, I present advanced
concepts like demurrage (incitory)
currency, and consider them in the
greater context of the wide-scale
deployment of blockchain technology.
Safari® Books Online
digital library that delivers expert
content in both book and video form
from the world’s leading authors in
technology and business.
Technology professionals, software
developers, web designers, and business
and creative professionals use Safari
Books Online as their primary resource
for research, problem solving, learning,
and certification training.
Safari Books Online offers a range of
plans and pricing for enterprise,
government, education, and individuals.
Members have access to thousands of
books, training videos, and
prepublication manuscripts in one fully
searchable database from publishers like
O’Reilly Media, Prentice Hall
Professional, Addison-Wesley
Professional, Microsoft Press, Sams,
Que, Peachpit Press, Focal Press, Cisco
Press, John Wiley & Sons, Syngress,
Morgan Kaufmann, IBM Redbooks,
Packt, Adobe Press, FT Press, Apress,
Manning, New Riders, McGraw-Hill,
Jones & Bartlett, Course Technology,
and hundreds more. For more
information about Safari Books Online,
please visit us online.
How to Contact Us
Please address comments and questions
concerning this book to the publisher:
O’Reilly Media, Inc.