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Dear JK Rowling: Bitcoin is Magic

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Don't worry, Mrs. Rowling. We'll have you understanding Bitcoin before you can say "Quidditch".

As part of a recent tweet calling all novelists to message her with their questions on Bitcoin, journalist Leigh Cuen publicized a tweeted response from none other than beloved Harry Potter author, J.K. Rowling.

"I don’t understand Bitcoin," Rowling said, adding, "Please explain it to me."

Dear JK Rowling:

The first thing you need to understand is that Bitcoin is magic. It allows you to exchange money with anyone in the world instantly, cheaply and securely, without the need for any centralized, Goblin-based banking authority.

Chapter 1: The White Paper From No One

Bitcoin was invented by a mysterious computer programmer named Satoshi Nakamoto — almost assuredly a pseudonym. In Bitcoin’s 10 year history, the identity of Bitcoin’s creator has never been unearthed. We can refer to him here as He-Who-Has-Not-Been-Named.

Chapter 2: The Self-Writing Book

Ownership of each coin is confirmed and recorded instantly in a digital ledger, called a Blockchain — similar to how the Quill of Acceptance records the name of each new potential Hogwarts student in the Book of Admittance. Except instead of recording magical births, we’re recording who does and doesn’t own a particular coin.

This ledger is publicly transparent, allowing anyone to see who has owned a given coin throughout its history. A good visual representation for this process is a checkout card in a library book.

Contrasting with Gringotts (as well as with muggle banks), Bitcoin has no set hours of operation. You can send your Bitcoin anywhere in the world — day or night, 365 days a year — and the recipient will receive it in a matter of seconds. It's also pretty darn secure, no dragons necessary.

Chapter 3: The Unconjurable Coin

Following Gamp’s Law of Elemental Transfiguration, new money cannot be conjured from nothing. Bitcoin respects this particular law far better than any government-issued currency. Only 21 million coins will ever exist on the Bitcoin network, and nothing can ever change that. By capping the number of Bitcoin to this finite amount, scarcity bestows each coin with a certain level of intrinsic value.

It also protects Bitcoin from the woes of extreme hyperinflation seen in government-issued currencies.

Chapter 4: The Magical Mine

Bitcoin transactions must be validated in order for them to be added to the Blockchain ledger. An algorithm called Proof-of-Work, or PoW, allows anyone in the world to contribute to this process using computer processing power to solve complex mathematical equations.

The first miner to confirm each new batch of transactions, called a block, receives a fresh issuance of brand new, never-before spent Bitcoin as a reward. Surely, this process would make a fine candidate for the Ludicrous Patents Office.

Chapter 5: The Secret Key

Users store their Bitcoin in a digital account called a wallet. Each wallet is protected by a unique private key, sometimes recorded as a series of human-readable words. Similar to a passcode or spell, knowing the right combination of words allows anyone to access the coins stored in a particular wallet. On the other hand, losing this key means that its corresponding wallet can never be opened again. That is why it is important to keep your wallet's private key a secret, while also maintaining adequate backups in as many locations as possible. Seven is a great number — and you don't even have to kill anyone to make them.

Unlike sending bank wires, checks, or other online payments, sending and receiving Bitcoin does not directly expose any party's private information. To receive Bitcoin, one simply shares their public wallet address — a string of letters and numbers, which, in and of itself, poses no hacking risk. Kind of like an email, but for money.

Chapter 6: The Faceless Exchange

Bitcoin can be bought and sold using any number of online marketplaces — called exchanges. Coins can be traded for nearly any global currency (save, perhaps, Galleons) at constantly fluctuating prices. They can also be traded for other Blockchain-based currencies.

You also do not need to buy a whole coin. You can buy any portion of a Bitcoin, divisible up to 100,000,000 individual pieces. For example 0.01 BTC is currently valued at roughly $92 (or 72 GBP).

Chapter 7: Unfogging the Future

Bitcoin's 10-year history has seen our community transfigured in many different ways. Though the technology began as a way to allow people to securely send money online without the oversight of banks or governments, it is now so much more.

Blockchain is being used to create self-executing applications that, in some ways, think for themselves. Developers are utilizing the technology to craft unhackable voting platforms, impossibly huge file storage methods, provably-fair betting systems (sure to stoke even Ludo Bagman's ire), and even authenticate and distribute art across every medium to individuals around the world.

We can't predict all the magical ways Bitcoin's underlying technology will impact our lives in the future. Divination is, after all, a woolly discipline. What we can say for certain is that Blockchain's strength is in redistributing power. It removes the need for governing bodies, and returns the power to share knowledge, riches, and even the control of individual's privacy back to the people.

Benjamin Pirus contributed to this article.

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