Does the Bitcoin Core API support high-precision balance display?


As Gracchus said, Bitcoin internally uses 64bit integers. Bitcoin's JSON interface on the other hand uses doubles, which give only 52 bit precision. Both types are big enough for bitcoin (double only for data exchange, the precision of doubles is not enough for actual calculations).

In the specific case of Dogecoin, the precision of the JSON interface (and parts of the GUI) is a known problem which we hope to fix in the future. Handling values in the range of hundreeds of million of dogecoin suffers from this currently.

The internally used 64bit integers are also a problem for Dogecoin which is being tracked. This is mostly a problem if anyone ever accumulates at leastn 2^64 Koinu (Satoshi) in a single wallet. This problem should be limited to the wallet, on the protocol level the size of transactions is limited to 10 billion doge.

I don't know how other coins handle this. There's at least one coin out there which supports arbitrary precision, but I forgot its...

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Imagine a scientist reading about an experimental result and then repeating the experiment for herself. Doing so allows her to trust the result without having to trust the original scientists.

Bitcoin Core checks each block of transactions it receives to ensure that everything in that block is fully valid—allowing it to trust the block without trusting the miner who created it.

This prevents miners from tricking Bitcoin Core users into accepting blocks that violate the 21 million bitcoin limit or which break other important rules.

Users of other wallets don’t get this level of security, so miners can trick them into accepting fabricated transactions or hijacked block chains.

Why take that risk if you don’t have to? Bitcoin Core provides the best possible security against dishonest miners along with additional security against other easier attacks (see below for details).

How Validation Protects Your Bitcoins

and put your...

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The bitcoin wallet with its own network of human tellers around the world, Abra, has just integrated a new way of buying bitcoin inside its app. American Express cards have been added as a funding option in addition to cash and bank accounts.

Also read: Abra Now Offers Deposits and Withdrawals at 60+ US Financial Institutions

Integration with American Express

Bitcoin wallet and payments service provider Abra announced a new feature on Tuesday to let customers fund their Abra wallet using American Express (Amex) cards. The company explained:

With this new funding option, American Express card members can now add funds to their Abra wallets immediately and send payments worldwide. This feature will be made available to a small group of Abra wallet users today and will be rolled out to our entire user base in the coming days.

Users need to already have an Amex card to use this option and they cannot sign up for one within Abra. In its...

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Segwit Activation Period Starts on July 28, Bitcoin Chain Split Not Likely

The dreaded August 1 bitcoin chain split is not likely it seems, with the activation of the Bitcoin Core development team’s transaction malleability fix and scaling solution in sight.

In a statement, Blockstream chief strategy officer Samson Mow revealed:

“New SegWit activation period starts July 28. SW should lock-in on Aug 11. SegWit active after 2 week grace period on Aug 25. Risk of split low. BIP 91 is essentially enforcing BIP148 ahead of schedule, so Aug 1 should be uneventful. I recommend 148 nodes should keep enforcing though. There's a chance a pool can stop signalling but at this point it's unlikely. Far more likely we'll see a mainnet Lightning transaction before Sept.”

The market’s optimistic and positive response to the activation of SegWit has been quite evident, considering the recent performance of bitcoin price and its upward momentum. Since SegWit via BIP 91...

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Home >> Dogecoin >> Dogecoin Core Api

Thanks so a lot for concerning our site in your look for "Dogecoin Core Api" online.

This is a wonderful means to stack digital money in your purse as well as utilize this electronic currency to acquire one more commodity from the internet globe. Bitcoin is the first digital currency, which was introduced into the on-line currency market by an excellent researcher Satoshi Nakamoto in 2009. They bet electronic money in order to get more from the digital market.

For centuries governments have held tight syndicates over loan, giving them tremendous power over their residents' lives. Currently, cryptocurrencies like Bitcoin might upend this connection in between loan and federal government. Just a few short years ago no person had become aware of them and currently it feels like everybody on the Earth understands about Bitcoin. Bitcoin which is a peer-to-peer electronic cash system, was initially presented in...

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You can download the reference client Bitcoin Core, also known as the "Satoshi client," from The reference client implements all aspects of the bitcoin system, including wallets, a transaction verification engine with a full copy of the entire transaction ledger (blockchain), and a full network node in the peer-to-peer bitcoin network.

On Bitcoin’s Choose Your Wallet page, select Bitcoin Core to download the reference client. Depending on your operating system, you will download an executable installer. For Windows, this is either a ZIP archive or an .exe executable. For Mac OS it is a .dmg disk image. Linux versions include a PPA package for Ubuntu or a tar.gz archive. The page that lists recommended bitcoin clients is shown in Figure 3-1.

For developers, there is also the option to download the full source code as a ZIP archive or by cloning the authoritative source repository from GitHub. On the GitHub bitcoin page, select Download ZIP from...

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alexbtctrader wrote:


TL;DR: Bitcoin trading platform QUOINE claimed that I exploited a glitch in their system, blocked my withdrawal requests, and reset my account balance from US$370,000 to zero without notice.

I bought my first bitcoins via a trading platform known as QUOINE last month. From what I can gather, QUOINE is a bitcoin trading platform based in Singapore and has been a locally registered company (Reg #201414068E) since 2014.

I was introduced to QUOINE and its zero trading fee campaign by a friend of mine. After some research on QUOINE, I believed that they were a trustworthy entity and decided to sign up for an account with them on June 14, 2016. I submitted legal identification documents for account verification and my account was then approved on June 16. On June 18, I transferred SGD from my bank account to QUOINE for the purpose of conducting trading via bitcoins.

On June 20, I wrote a software application that interacts with QUOINE's...

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I think the key discussion should be around which 3rd party method balanced may use to easily send money to off-shore merchants, without the merchant having to sign up for that 3rd party service.

One of my clients is a group payment platform, with a white-label API, which I have built for them. They are getting interest from the UK. The folks interested in an integration with the white-label API would not want to deal with bitcoin, neteller, or anything like that. To them, they want to receive money in their currency, in their bank account. If balanced leverages neteller or bitcoin as a 3rd party transaction partner to avoid the headaches of sending money directly to UK (insert country of choice here) bank accounts, that's all fine and well... even if the fees are higher.

I think balanced needs to make some strategic partnerships with 3rd parties, and make this as smooth as possible... or, solve the hurdles, when and if the cost benefit analysis is in balanced's favor...

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Bitcoin Core developer and Viacoin creator BTCDrak does not approve of attempts to integrate SegWit2x into the Bitcoin Core code repository.

Get exclusive analysis of bitcoin and learn from our trading tutorials. Join for just $39 now.

In a message distributed to the bitcoin-dev mailing list, he criticized the controversial scaling proposal, which is rapidly approaching its August 1 deadline for implementation:

I am utterly appalled by this proposal both technically, ethically, and by the process which it has adopted. Hard forks require consensus from the entire ecosystem in order to prevent a fork, funds loss, confusion and harm to the robust guarantees of the Bitcoin system has thus far displayed.

BTCDrak slammed SegWit2x developers for rushing to implement the proposal, which he said fostered centralization:

For all the talk of how important “alternative implementations” are, how does this rash and rushed action promote an ecosystem of...

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Back to Table of Contents

Balance is incorrect

Sometimes when sending bitcoin the transaction fails to be relayed causing an incorrect balance to be shown. The relay failure usually appears when the "seen by 1 peer" message never increases. Normally peers relay quickly so if no peers have acknowledged in more than a minute then there is very likely to be a problem with the transaction.

It is extremely unlikely that you have lost your bitcoins.

If the peers are relaying and the balance is still not correct then you should review the "Spendable" article. You may just need to wait for a few minutes for a confirmation to take place.

It's not relaying - what should I do ?

Since the problem is most likely caused by an earlier transaction (which could be any transaction you have ever received) it is necessary to perform a full reset of the block chain for your wallet.

Verify that your computer's clock is showing the correct time.Open MultiBit...
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If you are unsure whether your bitcoin address has received funds and/or do not have your bitcoin wallet at hand you can still check by using a Blockchain Explorer, as all bitcoin addresses are publicly visible on the bitcoin blockchain you can look them up if you are aware of the address or the transaction id.

If you need support, giving us the transaction id or the bitcoin address will greatly improve the service we can give you, so the more information you give us, the better our answer will be :)

Please see the example below:

We find the transaction within the Transactions Tab, it already shows us here that our transaction has 0 Confirmations Select the Transaction in question, at the top select Show Details The Transaction Details will be shown in the following screen, listing all inputs as well as outputs used by this transaction. Clicking on any of the details will show you the address (or transaction when selecting the Hash/Transaction ID) in the...
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Command: sendmany

nullsendmany "fromaccount" {"address":amount,...} ( minconf "comment" ["address",...] ) Send multiple times. Amounts are double-precision floating point numbers. Requires wallet passphrase to be set with walletpassphrase call. Arguments: 1. "fromaccount" (string, required) DEPRECATED. The account to send the funds from. Should be "" for the default account 2. "amounts" (string, required) A json object with addresses and amounts { "address":amount (numeric or string) The bitcoin address is the key, the numeric amount (can be string) in BTC is the value ,... } 3. minconf (numeric, optional, default=1) Only use the balance confirmed at least this many times. 4. "comment" (string, optional) A comment 5. subtractfeefrom (array, optional) A json array with addresses. The fee will be equally deducted from the amount of each selected address. Those recipients will receive less...
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The Bitcoin ecosystem is divided into multiple camps. With the lingering scalability issues, and other proposals representing an immediate solution to this problem, there is an interesting mid shift taking place. As it turns out, the majority of miners is still supporting Bitcoin Core in the block size debate. But they are losing ground at a rapid pace.

Right now, there are different proposals on the table to solve the Bitcoin scalability issue. One thing everyone seems to agree on is how the block size will need to be increased. By how much that increase will happen, remains to be seen, though. Bitcoin Core, which is the main branch of development, is working on Segregated Witness who would warrant a 2 MB block size.

Based on block size voting results, only 27.94% of the community is for the Bitcoin Core solution. Do keep in mind nearly one in four did not vote yet, and their preferences could go either way. Even if we were to add up that 22.01 % of non-voting...

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The Blockchain wallet will generate a unique bitcoin address each time you want to receive funds. This enhances the privacy of your wallet balance, and transaction history. To quickly generate and copy a bitcoin address to your clipboard simply click on the clipboard to the right of Request.

You can find imported addresses via Settings -> Addresses -> Imported Addresses. Read more about managing your addresses here.


To request a bitcoin address for receiving funds simply press Request at the top of your wallet. The following will be displayed:

If you only need to share the bitcoin address with another user then simply press Copy to the right of the bitcoin address displayed, and this address will be copied to your clipboard. If you have multiple fund categories set up within your wallet, then you can choose which one you would like to receive the funds to from the Receive To: drop down menu.

You can also generate a QR code...

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Basic MultiSig Wallet API ()

Our Basic Multi-Signature addresses by default require two signatures for all withdrawals: yours, and's. This method provides exponentially higher security for your Wallets and applications than single-signature addresses. This way, you spend coins yourself, without trusting with your credentials.

All addresses generated using this API are considered Green, i.e., they can send and receive funds without waiting for confirmations. This is possible since guarantees coins can never be spent twice. Furthermore, all transactions occur on the Blockchain.

If you require a more elaborate configuration to customize your applications' security, inquire about our Distributed Trust framework by going here. This framework allows up to 5 signatures per address. The use cases are endless!

Getting Started

First, you will need your API Keys, which we provide for Bitcoin, Dogecoin, Litecoin, and their...

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Bitcoin is the currency of the Internet: a distributed, worldwide, decentralized digital money. Unlike traditional currencies such as dollars, bitcoins are issued and managed without any central authority whatsoever: there is no government, company, or bank in charge of Bitcoin. As such, it is more resistant to wild inflation and corrupt banks. With Bitcoin, you can be your own bank.

If you are new to Bitcoin, check out We Use Coins and You can also explore the Bitcoin Wiki:

How to buy bitcoins worldwide
Buying Reddit Gold with bitcoin

Will I earn money by mining bitcoin?

Security guide for beginners - (WIP)

Community guidelines

Do not use URL shortening services: always submit the real link. Begging/asking for bitcoins is absolutely not allowed, no matter how badly you need the bitcoins. Only requests for donations to large, recognized charities are allowed, and only if there is good reason to believe that the person...
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The Bisq Roadmap is a living document that shares the Bisq Team’s vision and our current development priorities. This Roadmap is intended to provide an idea of when certain features are likely to become available.

This Roadmap might change at any time, especially in response to Community feedback.

Planned milestones:

Version 1.0

Fully decentralized arbitration system

Version 0.9

Version 0.8

Add native notifications Add native support for detecting standby/sleep

Version 0.7

Trading APIs Trezor support Windows code signing

Version 0.6

Version 0.5.4


Version 0.5.3 (Released: July 17th 2017)

The change of the application name from "bisq" to "Bisq" caused a change of the application directory as well. That caused on Linux that users wallet and data have been in the "bisq" and the app creates a new "Bisq" folder. To fix that we rename the application directory from "bisq" to "Bisq" if "Bisq" did not...
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About core activity

Logic breaks tasks down into threads that can be assigned to a single core for execution. It's not possible to split a single thread across multiple cores, although a single core may run multiple threads at the same time. This is one reason that you may sometimes see uneven load distributions across the available cores on your computer. If one thread is very processor-intensive, the core running that thread may show much more activity than the cores running less demanding tasks. This is the main reason that you may get "Core Audio Overload" warning messages even though some of the cores on your system may not show significant activity.

To monitor Logic as it uses the cores on your system, double-click the CPU meter in the Transport area.

A window displays a meter for each core.

The same concept applies to channel strips as well. Each channel strip—and all plug-ins it contains—is processed by one core. If you are using...

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