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Questions tagged [bitcoin]

GENERAL BITCOIN QUESTIONS CAN BE ASKED ON https://bitcoin.stackexchange.com Bitcoin is a peer-to-peer digital currency with no central authority. Transactions are managed entirely by the network. Please ask only programming questions about Bitcoin.

is a 1st generation, open source, peer-to-peer digital cryptocurrency and a distributed payment network with no central authority. Transactions are managed entirely by the network in a decentralized manner. These transactions are verified by network nodes through the use of cryptography and recorded in a public distributed ledger called a .

Bitcoins are created as a reward for a process known as mining. They can be exchanged for other currencies, products, and services. As of February 2015, over 100,000 merchants and vendors accepted bitcoin as payment.

The official website of is Bitcoin.org

There's also a Bitcoin StackExchange site that's dedicated to Bitcoin.

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Cryptocurrency bitcoin back testing returns

I want to know the USD returns while back testing crypto pairs. For example backtesting BTC_ETH will show returns in BTC, but i want the relative USD returns. (as USD_BTC will be changing over the time series) I'm thinking i need both time series…
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Using importXML results in "Imported Content is Empty" error on Google Spreadsheets

What I'm trying to do: Dynamically import the bitcoin/BTC price, from https://www.luno.com/en/price/, OR https://www.luno.com/en/price/BTC. So I've read everything there is to read (on this site anyway) about importXML, and cannot find what I'm…
Wazza
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Unable to create wallet of bitcoin from asp.net core web api

Trying to create wallet from the given source by blockchain.info at GIT https://github.com/blockchain/api-v1-client-csharp I am trying to access src/Info.Blockchain.API/Wallet/WalletCreator.cs in the project using it as API and post request to…
Dhruva Patel
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bitcoind -reindex or delete blockchain start over

blockchain is on disk (139GB) but not complete. Had an error. What is faster? Deleting the blockchain and start over with bitcoind -daemon or bitcoind -reindex. What will be faster to get it up and running?
benice
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Provably fair : verification error : primedice.com & bitsler.com

I'm trying to verify dice rolls but getting wrong roll numbers generated. I've tried official verification script from 2 sites: primedice.com nodeJS verification script. bitsler.com and PHP script to check a roll. Can you help me understanding…
Jean F.
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Replace By Fee on Bitcoin unconfirmed transaction

I'm trying to Replace By Fee (RBF) an unconfirmed transaction due to low fee which was set more than a week ago (5c5dcb0b21dc6142d789899f5efb31b2deb9366644f83d6dfa6e580f9a8697f0). To do the replacement, I'm using coinb.in. However, when I fill in my…
Thiago
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what is means and how use nodes_main.txt in litecoin source?

nodes_main.txt 5.196.77.193:9333 31.214.157.83:9333 37.157.183.16:9333 45.55.176.26:9333 46.101.6.204:9333 46.105.55.208:9333 47.189.129.218:9333 62.210.206.140:9333 62.210.254.201:9333 63.141.224.98:9333 66.178.182.35:9333 …
southouse
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pybitcointools pushtx TypeError: expected string or buffer

I am in the process of creating a raw transaction using pybitcointools, however when I tried to push the transaction into the network using pushtx(tx) I got the ff. error: Traceback (most recent call last): File "", line 1, in File…
Quin Noaj
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Selling your CryptoCoin made with Ethereum

I have programmed a CryptoCoin in Ethereum with Solidity, a contract based thing and I would like to know how I can make it sellable. I have this company who wants a crypto currency and they want to be able to buy it with paypal. The problem is, I…
JoeSaladas
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Web-scraping from Coinbase with Python (Pycharm)

I am trying to write some code that will give me the price in BTC when I run it. Although I am not getting an error after running the code, I am not getting the price and I am getting NONE. Can anyone look at my code and figure out what the problem…
Jay
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How to get bitcoins for testin in my block chain wallet?

I'm creating a website and i'm using the block chain web socket but i need test bitcoins to do lots of tests to see if the site works correctly, I tried using testnet not sure how to get the bitcoins into my wallet or if there is anyway to do this,…
Jake Dawsen
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How does a transaction complete in bitocin?

If B is transferring bitcoin to C then when will be C receive the bitcoin? Is that after all the miners add that transaction into their local ledger? (I think it is time-consuming and what will happen if some miners are not adding?) Now, if some…
PJR
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ng2-charts Bitcoin live chart

I'm newbie and I'm trying to render the live Bitcoin chart using ng2-charts library, I fetched the data but somehow I did not know how to visualize the data to the chart due to the structure of data which something like this: "bpi": { …
Hoàng Nguyễn
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PHP RPC Client fails to connect a bitcoin node behind TOR network with modified EasyBitcoin-PHP

I'm trying to connect to a bitcoin node using a modified version of EasyBitcoin-PHP. Here are the modifications I made to make it work over TOR: I created new fields for the TOR proxy: code-listing 1.1 ... public $response;//was there already //…
Paiku Han
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BITCOIN TO USD API

I want to exchange currency from Bitcoin(Or some other CryptoCurrency) to USD. Which API would you recommend if it exits ?
user5999064
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