저자: Sergey · 외국인
요약 보기
이 영상은 비트코인 입문자를 위해 비트코인의 개념, 사용법, 시작 방법을 설명하는 교육 영상이다. 비트코인은 금이나 정부 등 실물 자산에 기반하지 않는 디지털 화폐이며, 많은 사람들이 불안정하게 느껴 이해하기 어려워한다고 설명한다. 그러나 온라인 사업이나 결제를 하려면 결국 사용하게 될 수 있는 하나의 통화로 보면 된다고 강조한다. 비트코인은 복잡한 수학 알고리즘을 풀어 채굴되며, 약 10분마다 새 블록이 블록체인에 추가된다. 거래는 네트워크 전체 컴퓨터에 의해 확인되며, 확인 횟수가 늘어날수록 거래를 변조하기 어려워 보안성이 높다고 설명한다. 초보자에게는 가장 저렴한 거래소보다 사용이 쉽고 안전한 코인베이스 같은 전자지갑을 추천한다. 코인베이스는 신용카드나 은행계좌로 비트코인을 살 수 있고, 모바일 앱도 제공한다. 비트코인은 소액 단위(예: 0.01 BTC)로도 구매할 수 있어 가격이 높다는 부담이 크지 않다고 말한다. 영상에서는 실제 거래 내역과 확인 횟수, 블록 번호, 해시 ID 등을 보여주며 블록체인으로 거래를 추적할 수 있음을 설명한다. 일반적으로 거래 수수료가 거의 없지만 일부 서비스는 수수료를 부과할 수 있다고 덧붙인다. 영상 시점인 2016년 기준 비트코인 가격은 약 600달러로 언급된다. 결론적으로 중개자 없이 송금할 수 있다는 점이 비트코인의 핵심 장점이며, 초보자는 비트코인을 하나의 통화로 생각하면 된다고 정리한다. 가격 전망에 대한 구체적인 예측이나 투자 권유는 포함되어 있지 않다.
다듬은 글
Hey guys, Sergey here. In this video I'm going to cover bitcoin: what it is, how to use it, how to get started, and which e-wallet is the easiest and most user-friendly to open.
When people first hear about bitcoin, it sounds like an obscure concept. It's a digital currency. It has value, but it isn't backed by anything of value. Most currencies are backed by gold or other assets that countries and governments hold. Bitcoin isn't controlled by a government, a company, or anybody else, and that's a bit too "up in the air" for many people. This is the main reason many people don't feel comfortable with bitcoin and don't really understand it.
But if you're going to use bitcoin for any new program you join, if you're making money online, or if you plan to, sooner or later you will need it. It's one of many currencies, and it's also a payment gateway for many things online. That's why bitcoin should be seen as just another currency. If you're just a consumer using it to pay for goods, products, programs, or trainings, you can treat it as a currency. Even though it isn't backed by gold or other commodities, it has value because it relies on very difficult mathematical algorithms. To mine bitcoin you need to be a programmer and have the right equipment, with computers solving difficult mathematical problems, so to speak.
Right now a new block is added to the blockchain every 10 minutes, and every bitcoin transaction is confirmed by the computers across the whole network. Every transaction is confirmed hundreds of times. That's why, after you make a transaction, you soon start seeing how many confirmations it has. Each time a new block is added, the transaction gets confirmed again. As more blocks are added, it becomes far more difficult for that transaction to be altered or changed in any way. You can't easily hack the system and go back through transactions to make mischief, because you can't delete all those confirmations spread across the blocks. I have transactions with more than 400, even 600 confirmations. So we're talking about quite a secure system.
When you start with bitcoin, you buy it from your bank account or credit card, so you pay with the currency you already have. To make this easier, I'll explain Coinbase, the e-wallet I started with and still find the easiest. It's very user-friendly. There are a few e-wallets, but not every wallet lets you buy bitcoin directly with a credit card or bank account. Some only let you transfer bitcoin in. That's why I recommend Coinbase as the starting point for newbies.
Of course, there are exchanges that some people prefer, especially once they have experience. Coinbase sells bitcoin at a slightly higher rate than many exchanges, and there are public exchange sites where bitcoin is cheaper. But if you're a consumer just starting out and not yet familiar with how everything works, you won't be looking for the cheapest option. You'll be looking for the safest and most user-friendly one. That's what I was looking for when I started. I have a separate video showing how to open a Coinbase account.
When you first start, treat bitcoin like a regular currency, like exchanging your money into another currency that happens to be called bitcoin. Right now one bitcoin is about 600 dollars. If you only want to spend 50 dollars, you'll get a fraction of a bitcoin. The high price shouldn't trouble you. You don't need to buy a whole 600 dollars' worth and leave it sitting in your wallet. You can spend 10, 5, or whatever you want. There are programs that work with small amounts, like 0.01 or 0.02 bitcoin, so you can work with amounts like that. Once you start using it, you'll see how simple it is.
Coinbase has an official app for both iPhone and Android. On my phone there's a Buy and Sell button, and I can see the current price, which is up again at around 615 right now. If I want to buy bitcoin and send it to someone, say I need to send 50 dollars or pay for something, and I have nothing in my wallet, I go to Buy, select how much I want, choose a payment method, and send the payment. It then goes into my e-wallet. Once it's there, I can go to the website and check my account.
This is my Coinbase bitcoin wallet. You can see recent payments I've received, some very small. I got 19 cents from a website, and these are fairly regular payments. One was 0.00031251 bitcoin, so you can work with really small fractions here. That's why it's so easy. If I click on a transaction, every transaction has confirmations. A recent one has 81 confirmations already. An older one, for 0.20 bitcoin, which is about 115 dollars, has 758 confirmations. It was completed on September 2nd, and today is the 7th, so five days ago. Every transaction is recorded on the blockchain, and you can trace each one. It even shows which block the transaction is in, this one being block 428,017. You also get the transaction hash ID, a unique code that identifies the transaction, and that code has been confirmed 758 times.
Most of my transactions don't incur any fees. Generally, bitcoin transactions are free of charge, but some programs may charge for their part of the service, so you might still pay fees here and there. The whole idea behind bitcoin is that the middleman, the bank, is skipped. You no longer need a credit card machine or a bank transfer to send money, so you cut out the middleman who takes a fee. Programs that use bitcoin can act as middlemen, though, and third-party services that initiate transactions on someone else's behalf may charge you. So you'll still pay a fee in some cases, but usually a smaller one than with a bank transfer.
That's the basic overview. I won't go through the steps for opening a Coinbase account or using it here, since I have a separate video for that. This is just an introduction to bitcoin as a simple concept for people who still don't understand it. Treat it as a currency, just another type of currency.
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