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FinTech & Cryptocurrency

FinTech & Cryptocurrency

FinTech Introduction, Overview & Landscape
Cryptocurrency Introduction, Overview & Getting Started

Eueung Mulyana

April 18, 2018
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  1. 1 / 139
    Blockchain
    FinTech & Cryptocurrency
    Eueung Mulyana
    https://telematika.org/remark/blockchain1
    Part #1 | CC BY-SA

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  2. Outline
    FinTech - Introduction
    Cryptocurrency - Overview
    Selected Topics/Terms
    Getting Started
    2 / 139

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  3. Introduction
    FinTech
    3 / 139

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  4. 4 / 139
    Topics
    Digital Currency
    FinTech Basics
    Landscape & Trends
    Local Players

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  5. The Money Flower : A Taxonomy of Money
    Ref: [@Stanjourdan]
    5 / 139

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  6. 6 / 139
    Digital
    Currency
    Digital Currency (a.k.a. Digital Money or
    Electronic Currency/Money) is a type of
    currency available only in digital form, not in
    physical (such as banknotes and coins).
    It exhibits properties similar to physical currencies, but allows
    for instantaneous transactions and borderless transfer-of-
    ownership.

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  7. Global Money Supply: More than 90% of the currency in the world is digital, that is, money held or traded in it's
    non-physical form. Ref: [The Money Project]
    7 / 139

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  8. 8 / 139
    Digital
    Currency
    Most of the traditional money supply
    is bank money held on computers.
    This is also considered digital
    currency.
    One could argue that our increasingly cashless society
    means that all currencies are becoming digital
    ("electronic money"), but they are not presented to us
    as such. Cf. [Digital currency]
    Cryptocurrency
    A special kind of digital currency. The most
    popular Cryptocurrency is Bitcoin.
    "Crypto" refers to the cryptographic method used in the
    currency to secure transactions and create new unit of the
    currency.
    This kind of digital money is a revolutionary technology that
    allows people or institutions to transfer funds instantly, securely
    and without a middleman.

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  9. 9 / 139
    Bene ts
    Non-Traditional Digital Currency
    Ref: [5 Ways Digital Currencies will Change the World
    | Susan Athey]
    1. Faster, Cheaper Bank Transfers
    2. A Boost to Global Remittances
    3. Safe Money for the Poor
    4. Unleashing the Potential of e-Commerce
    5. Programmable Money and Smart
    Contracts
    International bank transfers can take up to a week. By using digital currency, bank
    transfers could be made instantly, cheaply and safely.
    Using digital currency, users can send money directly to their families via mobile phone,
    eliminating transfer fees that often run up to 10% or more.

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  10. 10 / 139
    Possible
    Risks
    A New Battlefront
    New record-keeping and payments systems
    create huge cybersecurity issues, from theft
    to hacking.
    Cryptocurrencies like Bitcoin are volatile, because their value is
    based on supply and demand. And the supply is determined by
    a computer code, not a central bank.

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  11. 11 / 139
    Topics
    Digital Currency
    FinTech Basics
    Landscape & Trends
    Local Players

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  12. Growth of FinTech Investments Since 2000 | Ref: [IOSCO 2017]
    12 / 139

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  13. 13 / 139
    The term Financial Technologies or FinTech
    is used to describe a variety of innovative
    business models and emerging
    technologies that have the potential to
    transform the nancial services industry.
    Financial Technology describes tech-enabled products and
    services that improve traditional nancial services.

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  14. 14 / 139
    Innovative FinTech Business
    Models
    o er one or more speci c nancial products or services in
    an automated fashion through the use of the internet.
    unbundle the di erent nancial services traditionally
    o ered by service providers -- incumbent banks, brokers or
    investment managers.
    Examples
    Equity crowdfunding platforms intermediate share placements
    Peer-to-peer lending platforms intermediate or sell loans
    Robo-advisers provide automated investment advice
    Social trading platforms o er brokerage and investing services

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  15. 15 / 139
    Emerging Technologies
    Cryptography
    Big-Data
    Machine Learning/ Arti cial Intelligence
    Distributed Ledger Technologies (DLTs)
    Such emerging technologies can be used to supplement both FinTech new entrants and
    traditional incumbents, and carry the potential to materially change the nancial services
    industry.

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  16. Major Technologies Transforming Financial Services | Ref: [Fintech and Financial Services - IMF]
    16 / 139

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  17. Unbundling the Banking Business Model | Ref: [CBInsights, Adaptive Lab]
    18 / 139

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  18. 19 / 139
    FinTech has Changed the
    Competitive Landscape
    Since the 2008 Financial Crisis, FinTech
    startups have targeted single underserved
    nancial products with better UI, digital
    marketing, and services that cater to shifting
    customer demands.
    Ref: [Banks in Fintech]

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  19. 20 / 139
    Disruption
    from Every
    Direction
    Challengers to the big banks now
    range from PayPal, the granddaddy of
    e-payments which spun o from eBay
    (2015), to cryptocurrency companies
    such as Coinbase. Ref: [IOSCO 2017]

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  20. 21 / 139
    Financial Inclusion
    Digital currencies can become another convenient and safe form of payment and
    savings in emerging markets where most citizens don't have bank accounts.
    High unbanked population, weak consumer banks and high
    mobile phone penetration make emerging markets ripe for
    FinTech disruptions.
    There are billions around the world without access to traditional nancial services.
    Fintech innovations could be their chance to be included in the global digital
    economy.
    Participation in the nancial system can reduce income inequality, boost job creation,
    and directly help the poor manage risk and absorb nancial shocks.
    Ref: [The Fintech Revolution]

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  21. 22 / 139
    Possible Impacts
    Fintech companies could wipe out as much as 60%
    of bank pro ts.
    Almost 2 million jobs ini banking will be lost,
    especially in areas such as lending and payments,
    where technology takes over human roles.
    While it's di cult to predict how FinTech will play
    out over the years, the game is most de nitely on.
    Ref: [The Fintech Revolution]

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  22. 23 / 139
    Topics
    Digital Currency
    FinTech Basics
    Landscape & Trends
    Local Players

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  23. FinTech Landscape Mapped across 8 Categories | Ref: [IOSCO 2017]
    24 / 139

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  24. FinTech - 10 Categories | Ref: [CBInsights]
    25 / 139

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  25. FinTech Landscape - Selected Players | Ref: [VentureBeat]
    27 / 139

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  26. 29 / 139
    There are more than 5,000 FinTech
    startups in the world in 2016.
    Cumulative funding into FinTech
    start-ups: $127 B
    Companies tracked: 10,993
    Ref: [INSEAD, FinTech Control Tower]

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  27. 25 FinTech Unicorns Valued at $75.9B | Ref: [CBInsights]
    Global VC-backed ntech companies that notched a private market valuation of $1B+
    30 / 139

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  28. 2017 Sees 8 Fintech Unicorn Births
    Global VC-backed ntech companies that notched a private market valuation of $1B+ in 2017
    31 / 139

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  29. Financial Services Firms Invest Early in Blockchain | Ref: [CBInsights - Blockchain]
    32 / 139

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  30. FinTech is no Longer a Niche Market | Ref: [Banks in FinTech]
    FinTech Companies have attracted Millions of Customers (Since Respective Launch Date)
    33 / 139

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  31. Annual Global FinTech Deals and Financing, 2013 - 2017 ($B) | Ref: [Fintech Trends]
    34 / 139

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  32. 35 / 139
    FinTech Trends (2018)
    Fintechs unbundling leads to rebundling
    European ntechs will expand their global footprint
    Banks forgo partnering in favor of ghting ntech with
    ntech
    Wealth management will become the hottest ntech sector
    in China
    Latin America and Southeast Asia will see strong ntech
    growth
    Banks deepen their partnerships with regtech
    ...
    Ref: [CBInsights FinTech Trends 2018]

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  33. FinTech and Disruptive Entities | Ref: [PwC Report]
    36 / 139

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  34. 37 / 139
    FinTech has evolved from startups that want
    to take on and beat incumbents, to a
    broader ecosystem of di erent businesses
    looking in many cases for partnerships.
    FinTech startups don't just need capital, they need customers.
    At the same time, incumbents need new approaches to drive
    change and deliver innovation.
    Innovation is also coming from outside nancial services and
    being driven by a variety of sources including tech companies,
    e-retailers, and social media platforms.

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  35. 38 / 139
    Topics
    Digital Currency
    FinTech Basics
    Landscape & Trends
    Local Players

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  36. Landscape - Payment | Ref: [Dailysocial]
    39 / 139

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  37. Landscape - Deposit & Lending | Ref: [Dailysocial]
    40 / 139

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  38. Landscape - Others
    41 / 139

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  39. 42 / 139
    188 - 196 (est.)
    Number of Indonesian FinTech Players
    2017 (incl. non-AFTECH)
    109
    Registered AFTECH Members 2017
    Ref: [Dailysocial]

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  40. List of Disclosed ID FinTech Investment | Ref: [Dailysocial]
    43 / 139

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  41. List of Disclosed ID FinTech Investment | Ref: [Dailysocial]
    44 / 139

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  42. 46 / 139
    Go-Jek
    Total Funding
    $1.8 Billion
    Select Investors
    Sequoia Capital, Tencent, Google,
    Temasek, DST Global, Warburg Pincus,
    KKR, Meituan-Dianping

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  43. 47 / 139
    Go-Jek
    50% of Go-Jek's 16M-18M active users
    use Go-Jek's payment gateway Go-Pay
    for transactions 3-4 times a day.

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  44. 49 / 139
    Indodax (Bitcoin Indonesia)
    Tokenomy
    TokoCrypto
    Triv
    Pundi X
    Digiro.in
    IBN
    Blockchain Zoo
    Blocktech

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  45. Overview
    Cryptocurrency
    51 / 139

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  46. 53 / 139
    Topics
    Bitcoin
    Cryptocurrency
    Altcoins
    Ethereum

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  47. 56 / 139
    The 2008 nancial crisis caused a lot of people to lose trust in
    banks as trusted third parties. Many questioned whether
    banks were the best guardians of the global nancial system.
    Bad investment decisions by major banks had proved
    catastrophic, with rippling consequences.
    Bitcoin - also proposed in 2008 -
    presented something of an alternative.

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  48. 57 / 139
    Bitcoin made digital transactions possible without a "trusted
    intermediary". The technology allowed this to happen at scale,
    globally, with cryptography doing what institutions like
    commercial banks, nancial regulators, and central banks used
    to do: verify the legitimacy of transactions and safeguard the
    integrity of the underlying asset.
    Bitcoin is a decentralized, public ledger. There is no trusted
    third party controlling the ledger. Anyone with bitcoin can
    participate in the network, send and receive bitcoin, and even
    hold a copy of this ledger if they want to. In that sense, the
    ledger is "trustless" and transparent.

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  49. 58 / 139
    Bitcoin
    The rst cryptocurrency
    Created by Satoshi Nakamoto in 2009
    Open source
    Considered the reserve currency of the cryptocurrency
    world
    Lifetime supply of only 21M coins, of which likely about
    30% are already lost
    Ref: [J. Wong]

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  50. 59 / 139
    Bitcoin
    Bitcoin is a decentralized, public ledger. This ledger is known as a blockchain. There is no
    trusted third party controlling the Bitcoin blockchain. Instead, anyone can read it, write to
    it, and hold a copy.
    The Bitcoin blockchain tracks a single asset: bitcoin. The
    blockchain has rules, one of which states that there will only
    ever be 21M bitcoin. All participants must agree to Bitcoin's
    rules in order to use it.
    Ref: [CBInsights]

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  51. 60 / 139
    Bitcoin
    Because anyone can read it and write to it, Bitcoin needs a
    method to establish consensus among untrusted nodes. It
    solves this problem via clever economics:
    Incentive: The rst miner to verify transactions and devote immense computing
    power to secure the blockchain can append a block of transactions to the chain of
    previous blocks. This miner is rewarded with bitcoin, and the race starts over every
    ten minutes.
    Disincentive: Bad actors are dissuaded from attacking the blockchain, because it's
    e ectively a money-losing proposition.
    Ref: [CBInsights]

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  52. 61 / 139
    Topics
    Bitcoin
    Cryptocurrency
    Altcoins
    Ethereum

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  53. Fiat Money vs. Cryptocurrency
    62 / 139

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  54. 65 / 139
    Digital asset for value exchange
    Decentralized control (no central bank)
    Uses cryptography for:
    Securing transactions
    Controlling creation of additional units
    Verifying the transfer of assets
    Most are built on a technology called blockchain, which is a
    public, immutable, distributed ledger of all transactions

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  55. Bene ts
    66 / 139

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  56. 67 / 139
    #1
    Desentralized
    Traditional money is controlled by banks and governments -
    which makes it a "centralized" currency.
    Crypto (eg. Bitcoin) is not controlled or
    regulated by any single entity like a bank -
    which makes it a "decentralized" currency.
    Having no banks in control makes sending and receiving money
    cheaper, faster, and easier.
    Ref: [upfolio.com]

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  57. 68 / 139
    #2
    No Counterfeit
    Money
    Paper currencies, credit cards, and checks can be counterfeit.
    Crypto solves the Double Spend Problem
    which means criminals cannot create fake
    cryptos. Counterfeiting is (almost)
    impossible.
    Counterfeit traditional money is very common. In the U.S. alone it is estimated that
    between $70 and $200 million in counterfeit bills are in circulation. That's up to 1 out of
    every 4,000 real bills. You won't have to pay those high fees for fraud protection either!
    Ref: [upfolio.com]

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  58. 69 / 139
    #3
    Limited Supply
    Traditional money is created by governments in unlimited
    quantities. They print more constantly, which decreases the
    value over time.
    Cryptos' supply is usually limited. Why? It's
    designed to be scarce so that it increases in
    value over time.
    A constantly increasing supply of money creates something called in ation. This means
    that the money you are holding is worth a little less every day. If you're working hard and
    trying to save up, that's bad. It's why an ice cream was $0.05 in 1950, but is $5.00 today
    traditional money keeps losing value. Crypto's limited supply creates the opposite e ect,
    called de ation.
    Ref: [upfolio.com]

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  59. 70 / 139
    #4
    Divisible
    Old fashioned money can be spent only in amounts as small as
    a single cent (ie. up to 2 decimal places). Crypto is highly
    divisible because its value is designed to increase over time
    (through de ation).
    This divisibility means you can spend very small amounts of a coin. So basically, an ice
    cream cone may cost 0.001 coins today, but in the future it may cost 0.00000010 coins, if
    coin's value rises even more.
    Crypto's high divisibility is useful eg. for microtransactions.
    These are very small payments used for digital goods and
    services. Microtransactions are something traditional money
    can't do, because cents are not divisible enough and therefore
    too big for very small purchases.
    Ref: [upfolio.com]

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  60. 71 / 139
    #5
    Security
    Cryptocurrency uses cryptography to securely send payments.
    Hence the name. Cryptography is a technology that protects
    information through complex math functions.
    Cryptocurrencies use strong cryptography to
    protect your account and let you securely
    send money.
    Note that security is a highly-dynamic multi-dimensional aspect ie. cryptography alone is
    not enough to de ne actual level of security.
    Ref: [upfolio.com]

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  61. 72 / 139
    Topics
    Bitcoin
    Cryptocurrency
    Altcoins
    Ethereum

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  62. 73 / 139
    Altcoins
    Alternative Coins
    Coins that were created after Bitcoin.
    Because Bitcoin's code is open-source, anyone can use Bitcoin's
    code to create an altcoin. Many of them seek to improve on
    Bitcoin or expand its capabilities.
    Altcoins use di erent rules and engage with other economic
    models.

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  63. 74 / 139
    Cryptocurrencies focus on di erent goals, but almost all shared the original purpose of
    removing middlemen.
    Some of the most popular cryptocurrencies include Ethereum, Ripple, Litecoin, Dash,
    NEO, Monero, and IOTA. The list grows constantly, because new cryptocurrencies are
    created all the time.
    Anybody is allowed to create their own cryptocurrency. In fact,
    there are already over 1,500 di erent ones, and that number is
    growing quickly. People are developing new cryptocurrencies
    for fun, to solve problems, and to make money.
    Because anybody with some technical skills can make them, it's important to know that
    some cryptocurrencies are more trustworthy than others.
    Ref: [upfolio.com]

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  64. Cryptocurrencies | Examples | Ref: [J. Wong]
    75 / 139

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  65. Cryptocurrencies | Examples | Ref: [J. Wong]
    76 / 139

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  66. Cryptocurrency | Top 10
    77 / 139

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  67. Cryptocurrency | Bitcoin
    78 / 139

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  68. Cryptocurrency | Ethereum
    79 / 139

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  69. Cryptocurrency | Top 5
    81 / 139

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  70. Comparison | 11/08/2017
    82 / 139

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  71. 83 / 139
    Topics
    Bitcoin
    Cryptocurrency
    Altcoins
    Ethereum

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  72. 84 / 139
    Ethereum
    E ectively, Bitcoin is a decentralized application for payments.
    Ethereum adds another layer by allowing users to put code on
    its blockchain that executes automatically. This code is called a
    "Smart Contract". In this way, Ethereum hopes to create a
    decentralized computing platform - a global supercomputer.
    Ref: [CBInsights]

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  73. Ethereum | Model/Stack
    Ref: [Blockchainhub] 85 / 139

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  74. Bitcoin | Model/Stack (Extended)
    Ref: [Blockchainhub] 86 / 139

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  75. 87 / 139
    Ethereum is a decentralized platform
    that runs smart contracts.
    Ethereum allows participants to execute complex code (smart
    contracts) on its ledger.
    Ethereum uses a blockchain to track a
    cryptocurrency called "ether". Users spend
    ether to run programs on the Ethereum
    platform.
    Ethereum is also a construction set for building decentralized
    applications. Instead of building their own blockchains from
    scratch, developers can use Ethereum's blockchain.

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  76. Some decentralized applications attacking di erent verticals. Ref: [CBInsights]
    Many of these are building on top of Ethereum.
    89 / 139

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  77. Selected Topics / Terms
    90 / 139

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  78. 91 / 139
    Token
    Native Tokens
    App Tokens
    Utility Tokens
    A unit of value for a blockchain system.
    Tokens can be used for payment, access,
    voting, and facilitating the overall blockchain
    infrastructure.
    Most tokens are based on Ethereum.
    bitcoin is a token that provides ownership of a unit of account
    on the Bitcoin ledger (BC). It is impossible to participate in the
    Bitcoin ledger without owning bitcoin; bitcoin is the network's
    exclusive means of exchange. In this sense, bitcoin isn't a
    security, but utility within a network.

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  79. 92 / 139
    Hash
    Hash Function
    Hash Value
    Hash Rate
    SHA-256
    A hash function is any function that can be used to map data of
    arbitrary size to data of xed size. The values returned by a hash
    function are called hash values, hash codes, digests, signatures,
    or simply hashes.
    Hash Rate/Power. The number of hash computations per unit time that can be
    performed by a mining hardware. The rate determines their mining e ectiveness and
    pro t.
    SHA 256. SHA-256 is a member of the SHA-2 (Secure Hash
    Algorithm 2) cryptographic hash functions. Digest is 32 Byte
    (256 bits) long. Bitcoin mining uses SHA-256 as the Proof of
    Work algorithm. SHA-256 is also used in the creation of bitcoin
    addresses to improve security and privacy.

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  80. 93 / 139
    Mining
    Mining Pool
    Mining Reward
    Mining Rig
    The process by which transactions get veri ed, bundled, and
    added to the Blockchain. It's an essential part of any
    cryptocurrency, because it processes all transactions.
    Mining Pool. A group of people or organizations who come together to pool and share
    their computer resources for cryptocurrency mining. They then also split the rewards.
    Mining Reward. The payment resulting from volunteering
    computer resources to process cryptocurrency transactions.
    Mining rewards are often a mix of new coins and transaction
    fees.
    Mining Rig. A computer setup that's specially designed for mining a cryptocurrency. Often
    involves multiple graphic cards (GPUs) or other complicated setups for maximum
    e ciency.

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  81. BTC Mining Farm | Ref: [Bitcoin.com]
    94 / 139

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  82. BTC Mining Farm | Ref: [Bitcoin.com]
    95 / 139

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  83. Antminer S9 | Ref: [Bitmain.com]
    96 / 139

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  84. Mining Pool
    97 / 139

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  85. Mining Pool
    98 / 139

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  86. Mining Calculator
    99 / 139

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  87. Bitcoin ATM
    103 / 139

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  88. PundiX POS
    104 / 139

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  89. 105 / 139
    Consensus
    Consensus Point
    An automated mechanism that allows
    blockchain participants to agree on which
    transactions happened and in which order.
    Consensus Point. A point in time when blockchain participants
    agree on which transactions happened and in which order. Can
    be based on a time interval or based on a volume of
    transactions.

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  90. 106 / 139
    PoW
    Proof of Work
    Bitcoin uses a Proof of Work scheme to
    create distributed trustless consensus and
    solve the double-spend problem.
    Proof of Work is a requirement that mining be performed.
    Miners proof that they did that computational work by nding
    the solution of a math puzzle known as PoW problem.
    All the network miners compete to be the rst to nd a solution for the mathematical
    problem that concerns the candidate block, a problem that cannot be solved in other
    ways than through brute force so that essentially requires a huge number of attempts. A
    reward (new coins) is given to the rst miner who solves each blocks problem.

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  91. 107 / 139
    PoW
    Proof of Work
    From a technical point of view, mining process is an
    operation of inverse hashing: it determines a number
    (nonce), so the cryptographic hash algorithm of block
    data results in less than a given threshold.
    A Proof of Work is a piece of data which is di cult (costly, time-
    consuming) to produce but easy for others to verify and which
    satis es certain requirements. Producing a PoW can be a
    random process with low probability so that a lot of trial and
    error is required on average before a valid proof of work is
    generated. Bitcoin uses the Hashcash PoW system.
    In order for a block to be accepted by network participants, miners must complete a PoW
    which covers all of the data in the block. The di culty of this work is adjusted so as to
    limit the rate at which new blocks can be generated by the network to one every 10
    minutes (Bitcoin).
    Due to the very low probability of successful generation, this makes it unpredictable
    which worker computer in the network will be able to generate the next block.

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  92. 108 / 139
    PoS
    Proof of Stake
    In a distributed consensus-based on the PoW, miners
    need a lot of energy. One Bitcoin transaction required
    the same amount of electricity as powering 1.57
    American households for one day (data from 2015).
    And these energy costs are paid with at currencies,
    leading to a constant downward pressure on the
    digital currency value.
    In a PoS scheme, the creator of a new block
    is chosen in a deterministic way, depending
    on its wealth, also de ned as stake.
    All the digital currencies are previously created in the
    beginning, and their number never changes. This means that in
    the PoS system there is no block reward and the miners take
    the transaction fees. This is why, in fact, in this PoS system
    miners are called forgers, instead.

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  93. Getting Started
    109 / 139

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  94. Transaction via Middleman | Image: [upfolio.com]
    110 / 139

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  95. P2P Transaction
    111 / 139

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  96. P2P Transaction
    112 / 139

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  97. Global P2P Transaction
    113 / 139

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  98. 114 / 139
    Software
    Wallets
    Testnet
    Bitcoin
    Electrum - PC/Desktop Wallet
    Mycelium - Mobile/Android Wallet

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  99. Test - Scenario | #1
    115 / 139

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  100. 116 / 139
    Electrum
    Testnet
    [Desktop Entry]
    Comment=Lightweight Bitcoin Client
    Exec=sh -c 'PATH="$HOME/.local/bin:$PATH" electrum --testnet %u'
    GenericName[en_US]=Bitcoin Wallet
    GenericName=Bitcoin Wallet
    Icon=electrum
    Name[en_US]=Electrum Bitcoin Testnet
    Name=Electrum Bitcoin Wallet
    Categories=Finance;Network;
    StartupNotify=false
    Terminal=false
    Type=Application
    MimeType=x-scheme-handler/bitcoin;
    Actions=Testnet;
    [Desktop Action Testnet]
    Exec=sh -c 'PATH="$HOME/.local/bin:$PATH" electrum --testnet %u'
    Name=Testnet mode

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  101. Electrum | Wallet Address
    117 / 139

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  102. Faucet #1 | BTC TestNet by @ yingkiwi
    118 / 139

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  103. Faucet #2 | coinfaucet.eu
    119 / 139

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  104. History | Uncon rmed Transaction
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  105. History | Con rmed Transaction
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  106. Electrum | Coins View
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  107. Block Explorer | Transaction
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  108. {
    "ver":1,
    "inputs":[
    {
    "sequence":4294967295,
    "witness":"02483045022100aad92c662f0369abc4cdf4ebb90c7cb29811249c2bd5fbb4637ca0c95628
    "prev_out":{
    "spent":true,
    "tx_index":195484734,
    "type":0,
    "addr":"2MwsqxQxAnU1PB7eTuCjBDHAeYgxKhZvVUY",
    "value":3320738522,
    "n":1,
    "script":"a91432cd808b9353756c63ddfec269c386237bab898f87"
    },
    "script":"160014c5277e82a71d090bf196638100cee37eebbc44c2"
    }
    ],
    "weight":670,
    "block_height":1291812,
    "relayed_by":"0.0.0.0",
    "out":[
    {
    "spent":true,
    "tx_index":195490461,
    "type":0,
    "addr":"myd2PyqaW2U1FnEhYXBBZ42fuXmxhmeYqF",
    "value":65000000,
    "n":0,
    "script":"76a914c6982f286dff7d9ace75e6469fcafbedd89fc1f088ac"
    },
    {
    "spent":true,
    "tx_index":195490461,
    "type":0,
    "addr":"2N6m5i5S8z1Wgfr9bSXQBhFFGQaTAqDQs33",
    "value":3255638522,
    "n":1,
    "script":"a914943f33e5dca35777b8e6974b75406182a2c9446187"
    }
    ],
    124 / 139
    Transaction
    JSON

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  109. Block Explorer | Block View
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  110. Test - Scenario | #2
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  111. Mycelium
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  112. Mycelium Testnet on Android
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  113. Faucet #1
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  114. Test - Scenario | #3
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  115. Electrum | Send Coins
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  116. Electrum | Send Coins
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  117. Electrum | Send Coins
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  118. History | Waiting for Con rmations
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  119. Balance | Transactions
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  120. Transaction Details
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  121. Refs/Resources
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  122. Refs/Resources
    1. Discover Bitcoin, Ethereum & Blockchain @Upfolio
    2. Machine Intelligence Platform @CBInsights
    3. Mastering Bitcoin 2nd Edition - Programming the Open
    Blockchain
    +Many others cited in-context (on resp. slides).
    138 / 139

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  123. 139 / 139
    END
    Eueung Mulyana
    https://telematika.org/remark/blockchain1
    Part #1 | CC BY-SA

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