Currency exchanges are implemented through programs called order-matching engines. When a new order is entered, a buy order for example, the matching engine checks to see if there is a match on the other side, a sell order at the right price.
Bid is the price a user is willing to pay and Ask is the price at which a seller is willing to sell. The difference ...
They're both representing the same thing over different time periods. The values on the drop down are always for the past 24 hours, the values on the graph depend on what time range you're viewing.
In your example 75584 is the number of bitcoins traded in the past 24 hours, and 17261 is the number traded between 19:00 and 20:00
I think this was "Bitcoin Sell Wall of Death" at Bitstamp. Somebody sold 31 000 BTC at 300 USD. The wall was eaten over Sunday-Monday night.
I think Ethereum is ideal for this. As you say, it's not ready for prime time yet. But I think it offers the most flexible toolkit for managing orders in a truly decentralized way. You can create and manage arbitrary database structures that are secured on the blockchain.
I wrote a toy digital artwork market using Ethereum -
Maybe not exactly what you are asking for but CoinLab have a mining pool that intends to use the computing power of their members for jobs other than hashing.
From the Bitcoin talk forum topic:
We’ve identified a number of opportunities to monetize our growing GPU cluster at a higher rate than Bitcoin mining, particularly for NVIDIA cards: Protein ...
The Marketplace on BitcoinTalk can be used. Simply prefix your post's title with "[WTB]" which means "Want To Buy".
Also, the Bitcoin-otc marketplace can be used to place requests, if you are looking to buy.
We are currently using notaries as a third party in a multisig transaction with arbiters serving as dispute resolution if there is an issue. You can read more at: https://github.com/OpenBazaar/OpenBazaar/wiki
Another way is with an arbitrator and multi-sig addresses. Payment is made to a multi-sig address where the sender, receiver, and an arbitrator each have a key. If the transaction goes well the sender and buyer each sign. In case of a dispute the arbitrator rules and signs either with the buyer to pass the money on or with the sender to return the money.
One solution is to use Nash equilibrium in order to force people to cooperate.
The concept is quite simple. Both the seller and the buyer make a deposit.
If the entire buy/sell process goes fine they can recover their deposit, if it don't they both lose their deposit.
So it isn't profitable to go away with the money without sending the good nor to get the ...
The Bitcoin payment service provider BitPay claims to have 20,000 merchants, both online and physical (brick and mortar), that accept Bitcoin on their system. They have a directory of companies here: https://bitpay.com/directory#/ but they are certainly not the only payment services provider.
http://coinmap.org/ has a list of almost 5000 brick and mortar ...
Well the only thing that has really changed is the growth and exposure of Bitcoin. The biggest challenge I see in moving money like this is exchanging or use. How are the Somalia-based recipients going to use the Bitcoins if no in the community is using or exchanging them. For Bitcoin to be used in a money transmitting operation successfully, the community ...
I'm pretty sure you'll never get an accurate number. I'm not even clear what you mean by transferred into the bitcoin economy.
If I bought $100 worth of bitcoins 3 years ago, do we count that as $100 or the value of the BTC now?
If I buy a bitcoin for $100 cash (using localbitcoins), send it to my friend (who immediately converts it to $100 USD), how do we ...
"Bitcoin market cap(in AUD)" = "Number of bitcoins in circulation" X "Value of single bitcoin(in AUD)"
The same as a market cap of some company: "number of their shares" X "value of single share".
Market cap means what would be the money you get if you sell all the bitcoins at current price.
Number of bitcoins in circulation can be calculated by going ...
There is not a way around this unless you are using an exchange. But, even exchanges have a disclaimer:
Market orders may be partially filled at several prices. Each part of
your order will be shown in the fills panel. See Coinbase Pro - overview of order types
The way exchanges work is sellers place limit orders, which show up on the order book. When ...
Since the blockchain doesn't store user's IPs or any useful person tracking information, it's hard to track down the recipient of a transaction.
But I read on few forums how Bitcoinstore owner tracked down a scammer to get the fraudulent refunded bitcoins back. You may come across a solution by studying this type of stories.
The details of the track down ...
The answer to this is probably much larger and more general than just being applied to your question. From a generalised point of view, businesses that specialise in certain activities are able to master them, which in an even more general sense, is the same reason usain bolt never competed in javelin and high jump.
More specifically, exchanges and wallets ...
I'm going to give a general answer here and say any off the shelf BTC trading software is not going to be profitable. Why? Because there's absolutely no reason a functional trading bot would be sold when it could be used to generate income.
Profitable bots would be custom made and not advertised.
Any claims made are dubious at best on these websites.
No, if the market crashed, you would not get your 1000$ back. That is the nature of a crash, unless there is a recovery afterwards. You can see the historical exchange rate of bitcoins, to get an indication of the stability.
The way I see bitcoins is as a tool for money transfer. The advantage of having bitcoins is that you can then transfer money very ...
You could just parse the website. For example to get the current euro and us dollar prices:
curl -s https://www.bitcoin.de/de | sed -n '/EUR/s%.*[^0-9]\([0-9]\+\)\(,\)\([0-9]\+\).*%\1.\3%p'
curl -s https://www.bitcoin.de/de | sed -n '/USD/s%.*[^0-9]\([0-9]\+\)\(,\)\([0-9]\+\).*%\1.\3%p'
http://pricedingold.com/charts/BTC-2010.pdf This is a comparision chart for btc vs. miligrams of gold i guess you could reverse it against history of silver or some other commodities. You can get the complete article here http://pricedingold.com/bitcoin/