Questions tagged [exchanges]

This tag should be used for questions regarding exchanges. Exchanges are sites which allow for the conversion of Bitcoins to various world currencies as well as alternate cryptocurrencies.

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Is there a good website or resource comparing how all exchanges are structured under the hood?

So one of the issues I am running into is that there are competing definitions for things like: exchange, broker, trading platform, exchange platform, centralized, decentralized, P2P trading, etc. And ...
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23 views

How to calculate conversion exchange fees?

According to Exchange A, I can withdraw 1 BTC as 90 fiat. Or I can send them 1 fiat in return for 0.01 BTC. How do I calculate percentage fees for one way conversion?
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is wallet vulnerable when unlocked for transactions?

is wallet vulnerable when unlocked for transactions?.I recovered a wallet some time ago and all is good.passphrase key all looks good.But a question came to my mind about the moment we make a ...
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34 views

Are the transactions displayed on “BitListen” really accurate?

Over the years, whenever there's unusual Bitcoin activity, I look at: https://www.bitlisten.com/ But can these transactions really be accurate? I just saw numerous 100+ BTC ones, and just now a ...
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44 views

Safest way to validate typo

Let's assume that I have small crypto exchange site called "MyExchangeWebsite". It works like this: user creates ETH-BTC order, specifies his BTC address and sends ETH to my ETH address, I ...
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174 views

Who was the owner of the first crypto exchange bitcoinmarket.com (aka dwdollar)?

I am researching the early history of Bitcoin. We know that bitcoinmarket.com (the first exchange) was created by 'dwdollar'. Did we ever find out the real name of the owner or owners? or are these ...
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85 views

How to use Multisig feature on Bitcoin Core RPC in an online exchange?

I've craeted a small online exchange based on Bitcoin Core. The features in this application are: User send request to get a new address, and the Bitcoin Core generate a new one with defined ...
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53 views

Exchange Confirmation Requirements

What does the minimum confirmations required for a deposit mean for the security of exchanges? For example, Coinbase requires 3 confirmations for Bitcoin deposits. Suppose an adversary deposits 10 ...
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1answer
24 views

Order Book Distribution

I'm currently building a small bitcoin order book simulator that would mimic user limit orders. What gives order books its V shape appearance? That is, the further away we go from the market price, ...
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57 views

How should I calculate a net value after a BTC withdrawal from an exchange?

Many exchanges have a withdrawal fee (such as Poloniex, which charges customers in 0.0005 BTC on average) and these fees are mostly for network costs. Should I consider as a general rule that the ...
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2answers
134 views

How to accept bitcoin and giving each user a unique address amd automatic withdrawal

I want to create a website when users on singing up will get a unique address and after getting my websites service,they can withdrawal the money also automatically. Is that bitcoin integration free ? ...
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How much on-chain activity is to and from exchanges?

Are there any data services which provide metrics that show how much of the transactions on the Bitcoin blockchain are to and from exchanges?
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88 views

How do cryptocurrency exchanges work with so many currencies at the same time?

To implement automated deposits/withdrawals of a single currency for a business there has to be a lot of code in place specific for that currency. For example if I want to automate sending and ...
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105 views

Keeping wallet addresses outside bitcoin core

I'm trying to build a good security for my online bitcoin based application. Is something like this possible? send_bitcoin(address) create_address() sweep_balances() + | | ...
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1answer
35 views

From Edge to Poloniex

Bought bitcoin and have a balance in a exchange account at Poloniex. Is there another step I need to take or is this where the estimated value that changes is where I will be able to send this back to ...
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1answer
114 views

Bitcoin / Crypto and exchanges!

When we buy/ sell bitcoin through some exchange say "Koinex in Indian context", what is the process i.e. actually followed ? 1. Does exchange communicate to node(s) in the bitcoin blockchain thru my ...
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279 views

Bittrex API market history — interpreting OrderType

The Bittrex API has a request to get the market history: https://bittrex.com/api/v1.1/public/getmarkethistory?market=BTC-DOGE which gives a response containing the following fields: "Id" "TimeStamp"...
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1answer
773 views

Signature for this request is not valid

im testing the binance api but cant get over the signature problem can u spot a mistake on my signature?: const crypted = CryptoJs.HmacSHA256("timestamp=" + new Date().getTime().toString() + "&...
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160 views

transferring Bitcoins between two exchange

I transferred my bitcoins from Binance to Yobit. The BTC are gone from Binance but it is not coming on Yobit.net. I also transferred Litecoin from GDAX to yobit. They are also not showing in Yobit. ...
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119 views

Bitcoin sent from one wallet to another didn't reach

looking for some help and advice here. I sent 2.27 BTC from one exchange (Coinsecure) to another (Koinex). However, the receiving exchange (Koinex) only credited 0.327 to my wallet. I have been ...
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1answer
854 views

Can't use Bittrex Exchange python-bittrex api call: no output

I'm completely new to python (and programming), and I know this question will sound very dumb to most of you people. I'm experimenting on getting datas from the cryptocurrencies exchenge bittrex and ...
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1answer
95 views

Confused by the term: trading partners. And how to convert more fringe currencies back to bitcoin

Two questions: I am confused by the term: trading partners like BTC/ETH, etc. I'm into some more of the fringe currencies, IOTA, and SAN. Bought them with bitcoin on bitfinex, how to convert back? ...
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2answers
507 views

Exchange currency trade history

I am looking for datasets of trade history, which contains the following information: date-time, buy/sell, price. The currency pair and exchange is not important.
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82 views

Very strange balance in poloneix

I believe I transfer 1.3 bitcoin from exchange account to lending account. Then I saw I have only .29 bitcoin left in my lending account. So I did a search. This is what I found It says I have .29 ...
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28 views

Searching for EUR exchange with high trading volume

I'm currently trading on kraken.com which works perfectly fine. Now I want to discover other EUR exchanges which have good reputation, a relatively high trading volume and preferably low trading fees. ...
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1answer
72 views

What are the regulated exchanges out there?

I do not have trust in random exchanges. I'm looking for regulated exchange so I'm less likely to lose my BTC. What are the regulated exchanges out there? Some hints: https://techcrunch.com/2015/...
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72 views

Would requesting a refund for a Bitcoin order be a better way to transform your Bitcoin in national currency?

Let example.com be a shop on the internet accepting Bitcoin as payment system, along with USD payments. In the context of a refund, the user gets back USD. Now, Alice has, let's say some bitcoins, ...
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1answer
70 views

What are options to store bitcoin or ethereum in different types of places?

I know to option to store bitcoin. 1) A wallet 2) A exchange but both are unsafe As far as i know wallet save the coins offline in your phone and hence if you break your phone or lost it coins are ...
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1answer
660 views

How does Cryptsy's Trade Key system actually work

I am building an altcoin to altcoin trading site wherein any Member can trade any altcoin for any other altcoin ... (Top 60 or so Altcoins are supported). I need to know how Cryptsy's Trade Key ...
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1answer
271 views

How do I transfer my paxful bitcoin to litecoin and do I need a litecoin address

How do I transfer my bitcoin to litecoin?
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1answer
643 views

Where can I exchange Bitcoin for Cash, Western Union or MoneyGram?

I'm looking for a Website that allows to exchange Bitcoin for Cash, Western Union or MoneyGram. I have heard about localbitcoin.com, but people complain about spamming... I've also heard about ...
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2answers
350 views

Any reason not to buy bitcoins using a bank card?

If I'm new to bitcoin and I want to buy coins at an exchange like mtgox solely for the purpose of seeing currency value increase and selling at a profit, is there any good for reason for me to not ...

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