71 votes
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Cryptocurrency Arbitrage - What do I need to know?

Arbitrage - What it is and how it works Arbitrage refers to the process of instantly trading one or more pairs of currencies or odds for a nigh risk-free profit. Usually, this involves two ...
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  • 1,672
17 votes

Anyone know of an API I can get historical price time series for multiple coins

I am developing the ccxt cryptocurrency trading library, check it out on GitHub: https://github.com/kroitor/ccxt It is a library for cryptocurrency trading and e-commerce with support for many ...
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11 votes
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Is there any way to buy bitcoins online without a fee?

Of course you may trade bitcoins with just anyone without having to pay fees to a centralized exchange. I think Bisq (formerly BitSquare) may be the best answer to the question; decentralized, free ...
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  • 821
10 votes

What is the strategy behind a sell wall?

I use this type of trading to accumulate buys at a cheaper price. Ex: if I spend 2 hours buying small amounts of coins so nobody notices the large buys, then I put up a large sell wall ($30k-$45k) to ...
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  • 101
10 votes
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Can I send bitcoin to other address in my wallet to provide anonymity?

Let's assume you're the outside observer. You see 1 BTC go from aaa to bbb, then from bbb to ccc, then from ccc to ddd, and them from ddd to zzz (zzz being associated with service Z). Can you see how ...
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  • 3,154
9 votes

Is it possible to buy half of a full bitcoin?

No, you can transfer fractions of bitcoins easily. From the Myths section of the Wiki: One Bitcoin is divisible down to eight decimal places. There are really 2,099,999,997,690,000 (just over 2 ...
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  • 225
8 votes

Is there any way to buy bitcoins online without a fee?

Some Chinese exchanges don't charge a fee. Any site that has possession of your bitcoins or dollars means there is at least some risk of getting ripped off. So unfortunately, what you ask for doesn'...
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  • 7,639
8 votes

How much does it effectively cost to purchase currency at an exchange?

Essentially, you have to factor in 3 fees in a purchase: 1. Deposit fee (if applicable) This is usually a fee for wire transfers, and from my experience is only relevant if you deposit cash across ...
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  • 1,672
7 votes
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Anyone know of an API I can get historical price time series for multiple coins

Found the data on crypto compare const endpoint = 'https://min-api.cryptocompare.com/data/histoday?aggregate=1&e=CCCAGG&extraParams=CryptoCompare&fsym='+ ticker.toUpperCase() +'&limit=...
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6 votes

How to transfer bitcoin bought online to my desktop wallet?

You can easily send your bitcoins from Coinbase to Electrum. Once logged into Coinbase click on the Send / Request button on your left hand menu. A form will pop up asking for an email address or ...
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  • 5,243
6 votes

Is there any way to buy bitcoins online without a fee?

There is no middle man for using Bitcoin. If all your income and expenses were in Bitcoin, the transfers would have negligible overhead. But what you are looking for is a service that will take your ...
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6 votes

How are Fees Charged at Kraken?

How are fees charged? They are charged in the currency fee set during a trade. Due to a discreet nature of trade matching process, it's rather tricky to give a definite answer on how each individual ...
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  • 1,672
6 votes

Incorrect bitcoin address funded

No you cannot recover Bitcoin sent to the wrong address. Many people and businesses use HD wallets that generate a new address each time. If the recipient has provided you with a new address but you ...
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6 votes

Is it safe/wise to buy bitcoins with a credit card?

Buying any crypto from your credit card is same as buying it through any other payment method. both are equally secure. But always buy it from authentic source only, there are many scamming sites ...
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5 votes
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Is it possible to buy half of a full bitcoin?

You can purchase any amount of Bitcoin, from $10 USD worth, to $100 USD worth, to a full Bitcoin. It is divisible up to eight decimal places, and you can purchase/send/receive any amount or fraction ...
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  • 96
5 votes
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What is the difference between BTC/LTC & LTC/BTC markets?

LTC/BTC and BTC/LTC are both ratios of purchasing one currency with another. For example, with LTC/BTC, the price quoted is for 1 LTC (overlying) in BTC (underlying). If the price is 0.025, that is ...
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  • 1,679
5 votes
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BTC Exchanges and Counterparty Risk

To engage in trading on an exchange, you have to make a deposit of either fiat or Bitcoin. As the balances are then managed by the exchange until paid out, there is no counterparty risk to your ...
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5 votes

Anyone know of an API I can get historical price time series for multiple coins

http://www.cryptocoincharts.info Advance API to more than 100 exchanges: cryptocurrency pricing, OHLC and volume data from multiple exchanges. BTC38, BTCC, BTER, Bit2C, Bitfinex, Bitstamp, Bittrex, ...
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  • 59
5 votes

Fiat to Satoshi Relationship

The number of satoshi per bitcoin is 1e8 or 100,000,000, so if you have a fiat value per bitcoin such as $7000/BTC, the calculation is: $/satoshi = $7000/1e8 = $0.00007 per satoshi Of course, ...
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  • 7,090
5 votes

buying bitcoins with debit cards that are not mine

I have a couple of friendswho want to purchase bitcoin, I would buy the bitcoins for everyone, that is why I have all of their card and personal info. I wanted to use a single wallet (mine) and then ...
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  • 17.4k
5 votes

Trading Bitcoins through binary miner

Their homepage advertises them as: WORLD'S BEST RISK FREE FOREX, BINARY AND BITCOIN INVESTMENT Any entity that advertises any form of trading as risk free is a scam. Essentially all binary options,...
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5 votes
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How did Elon Musk buy Bitcoin when it is open source?

The Bitcoin network is a decentralized network of computers (nodes), that keeps track of bitcoin (BTC, the monetary unit). The Bitcoin network has no admin, no leader, no centralized point of control. ...
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4 votes

Bitcoin address does not show transaction/balance from Coinbase purchase

I'm no expert but I'm a user of coinbase and noticed there's a mistake in ScripterRon's answer. The first transaction moves the coins from an address controlled by Coinbase to a new address ...
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  • 151
4 votes

What is the strategy behind a sell wall?

http://www.dancingbots.com [1] is visualizing the chronological sequence of limit orders on popular exchanges. You can see how those walls are repositioned if the price moves. Those big positions are ...
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  • 151
4 votes

How to buy bitcoins anonymously

The best way to do it is in person, with cash. Most other methods are traceable. Provided you don't live in the middle of nowhere, it's pretty easy to find at least someone nearby who's willing to buy,...
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4 votes

I need Fiat -> BTC merchant service

There used to be a service by coinvoice.com that did exactly what you're asking. Unfortunately, they're no longer operating. I've heard bitpagos.com does that for Latin America. Otherwise, you're ...
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  • 7,639
4 votes
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Off-chain transactions with Coinbase

From the perspective of the Bitcoin network, Coinbase owns both the Bitcoins you transferred in, and the Bitcoins they sold to you. This is useful from a technical perspective, because Coinbase can ...
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4 votes

How to build a Java trade bot

So you want to limit your bot strictly to gdax? There are some libs providing abstraction layers from a specific exchange. One example is https://github.com/timmolter/XChange This becomes very ...
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4 votes
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What's the difference between a Bitcoin Wallet and a Bitcoin Exchange?

A bitcoin (or any crypto) wallet is simply a set of public/private keys. If you own the keys, you own any coins that those keys can access. An exchange is very similar to a stock exchange. You ...
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4 votes
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What can you do with the private key?

Anyone who knows the private key will have full access and control of any coins stored at the corresponding address. When you put a password on a wallet or login account, that password is only for ...
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