protocol stack of the Web. After the
underlying Internet technology and
infrastructure was in place, services
could be built to run on top of it—
Amazon, Netflix, and Airbnb—
becoming increasingly sophisticated
over time and always adding new ways
to take advantage of the underlying
technology. Blockchain 1.0 has been
likened to the underlying TCP/IP
transport layer of the Web, with the
opportunity now available to build 2.0
protocols on top of it (as HTTP, SMTP,
and FTP were in the Internet model).
Blockchain 2.0 protocols either literally
use the Bitcoin blockchain or create
their own separate blockchains, but are
in the same cryptocurrency decentralized
technical architecture model of the three-
layer stack: blockchain, protocol, and
currency. However, it is important to
note that these “new Internet plumbing
layers” are very much still in
development and any metaphor might
become quickly outdated. These
analogies might be like calling Chrome a
“Napster 2.0,” or Facebook or AdBlock
a “Web Browser 3.0.”
The key idea is that the decentralized
transaction ledger functionality of the
blockchain could be used to register,
confirm, and transfer all manner of
contracts and property. Table 2-1 lists
some of the different classes and
examples of property and contracts that
might be transferred with the blockchain.
Satoshi Nakamoto started by specifying
escrow transactions, bonded contracts,
third-party arbitration, and multiparty
signature transactions. All financial
transactions could be reinvented on the
blockchain, including stock, private
equity, crowdfunding instruments, bonds,
mutual funds, annuities, pensions, and all
manner of derivatives (futures, options,
swaps, and other derivatives).
Class
Examples
General
Escrow transactions, bonded
contracts, third-party
arbitration, multiparty
signature transactions
Financial
Stock, private equity,
transactions
crowdfunding, bonds, mutual
funds, derivatives, annuities,
pensions
Public
Land and property titles,
records
vehicle registrations,
business licenses, marriage
certificates, death
certificates
Identification Driver’s licenses, identity
cards, passports, voter
registrations
Private
IOUs, loans, contracts, bets,
records
signatures, wills, trusts,
escrows
Attestation
Proof of insurance, proof of
ownership, notarized
documents
Physical
Home, hotel rooms, rental
asset keys
cars, automobile access
Intangible
Patents, trademarks,
assets
copyrights, reservations,
domain names
Public records, too, can be migrated to
the blockchain: land and property titles,
vehicle registrations, business licenses,
marriage certificates, and death
certificates. Digital identity can be
confirmed with the blockchain through
securely encoded driver’s licenses,
identity cards, passports, and voter
registrations. Private records such as
IOUs, loans, contracts, bets, signatures,
wills, trusts, and escrows can be stored.
Attestation can be executed via the
blockchain for proof of insurance, proof
of ownership, and notarized documents.
Physical asset keys (which is explored
further in Chapter 3) can be encoded as
digital assets on the blockchain for
controlled access to homes, hotel rooms,
rental cars, and privately owned or
shared-access automobiles (e.g.,
Getaround). Intangible assets (e.g.,
patents, trademarks, copyrights,
reservations, and domain names) can
also be protected and transferred via the
blockchain. For example, to protect an
idea, instead of trademarking it or
patenting it, you could encode it to the
blockchain and you would have proof of
a specific cargo being registered with a
specific datetime stamp for future proof
(as is discussed in “Digital Art:
Blockchain Attestation Services (Notary,
Intellectual Property Protection)”).
Financial Services
A prime area for blockchain businesses
is interfacing cryptocurrencies with
traditional banking and financial
markets. Venture capital–backed Ripple
Labs is using blockchain technology to
reinvent the banking ecosystem and
allow traditional financial institutions to
conduct their own business more
efficiently. Ripple’s payment network
lets banks transfer funds and foreign
exchange transactions directly between
themselves without a third-party
intermediary, as is now required:
“Regional banks can now move money
bilaterally to other regional banks
without having to relay those funds
through an intermediary. ”35 Ripple is
also developing a smart contracts
platform and language, Codius. Another
potential symbiosis between the
traditional banking industry and Bitcoin
is exemplified by Spanish bank
Bankinter’s Innovation Foundation
investment in Coinffeine, a Bitcoin
technology startup that aims to make it
possible for end users to buy and sell
Bitcoin directly without an exchange. 36
Other businesses are also connecting
Bitcoin to traditional financial and
payments market solutions. PayPal is an
instructive example because its