0
votes
0answers
4 views

Why are chain parameters hardcoded rather than defined in a configuration file?

I'm interested in running a private test network to experiment with various chain parameters. These are hardcoded in chainparams.cpp. ...
0
votes
0answers
5 views

listtransactions via RPC returns false in PHP

In PHP I run $bitcoin->listtransactions("count = 5, offset = 0"); In the hope of getting 5 transactions only, but I get the response bool(false) When I run $bitcoin->listtransactions(); ...
0
votes
0answers
6 views

Canadian Taxes for Buying Bitcoins

I saw this post, but it really didn't help me. How should I fill out my tax forms if I am only buying and holding bitcoins, not selling them? This page appears to suggest that I only need to worry ...
0
votes
0answers
5 views

How to set up for merged mining

I plan to eventually add litecoin, Dogecoin, and possibly some other scrypt merged-minable coins to my pool. Are there any tutorials or other information available that would show me how to set my ...
2
votes
2answers
40 views

Bitcoin in third world countries

I am with the Adelante Foundation. We are a microfinance institution serving the poorest of the poor women in Honduras. We are currently toying with the idea of transitioning into a cashless model ...
1
vote
0answers
10 views

How do you derive the lambda and beta values for endomorphism on the secp256k1 curve?

You can see a little background about this on this bitcointalk post by the late Hal Finney. Beta and lambda are the values on the secp256k1 curve where: λ^3 (mod N) = 1 β^3 (mod P) = 1 As seen ...
2
votes
2answers
37 views

bitcoind getrawmempool without downloading the full blockchain

I'm running bitcoind from a small virtual machine on digitialocean. I'm interested only in looking at the new transactions in bitcoind getrawmempool Is there a way to get these transactions without ...
-1
votes
0answers
15 views

i need help on how to connect my bicoind to my bitcoin dice script

I'm not using lynx i'm using a web hosting company and the directions to setup are for lynx. I'm following these instructions.
-1
votes
1answer
46 views

How do I calculate a hypothetical trade? [on hold]

Say I had 1 Bitcoin at the start of the trade yesterday @ 01-27 14:29 and the price was USD : 263.95872470902 So, I sold the whole Bitcoin at the average price Then @ 01-29 10:57 I ...
1
vote
0answers
20 views

Is it possible to reverse mistaken transactions? [duplicate]

I'm referring to the challenge Bill Gates raised as a shortcoming of Bitcoin. Could it ever be possible to reverse a bitcoin transaction mistakenly sent to the wrong address?
0
votes
1answer
43 views

How to find Z value of multisig transaction?

for example this transaction: http://2coin.org/txinfo.aspx?txid=6c3dc603da32bba3f56f2b33053aaf0f0f17322386c0c6846786bffe49f6ef22&cur=BTC Script not of right size to be a scriptSig, expecting 2 ...
3
votes
2answers
48 views

intercepting and editing transaction output

When a P2PKH transaction is created there are two main parts. the transaction input and the transaction output. I understand that the transaction input requires a signature that unlocks a previous ...
-2
votes
1answer
45 views

How to premine our coins in my altcoin?

I want to premine our coin, but I'm not able to understand which function from which file actually generate coin. So if you know than let me know so, I can understand that code and implement my own ...
0
votes
1answer
10 views

Bitwasp Installation Problem

I just uploaded the bitwasp code (https://github.com/Bit-Wasp/BitWasp) into /var/www but when I tried to install using extension BitWasp-master/install/index.php the installation page that i need to ...
-1
votes
2answers
38 views

Why was there an non-steady mining rate in 2009?

For the first four years of bitcoin, 50 bitcoin were being mined per block. There was a feedback loop to adjust difficulty so that blocks would be mined every ten minutes, on average. So why is the ...
2
votes
1answer
23 views

Mycelium wallet file

I have a fairly straightforward question that's still unanswered after googling for days for a definite answer, I hope you guys can help me out with this one here. Background: I have Mycelium Bitcoin ...
0
votes
2answers
19 views

Bitfinex 400 error

string url = @"https://api.bitfinex.com/v1/balances"; string paramDict = "{\"request\": \"/v1/balances\",\"nonce\": \"" + GetNonce() * 10000 + "\"}"; string payload ...
0
votes
1answer
8 views

NXTcoin Startup - Error: Could not find or load main class nxt . Nxt

I setup a new VM with ubuntu 12.04 installed and installed java 8. I cloned the nxt repo and it is throwing this error: Error: Could not find or load main class nxt.Nxt What is this error and how ...
1
vote
1answer
207 views

How many Dogecoin-satoshis will ever exist?

In Bitcoin, there will only ever be ~21,000,000 coins (slightly less, technically, but I'll just use 21 million for easy calculation). Each bitcoin is 10^8 satoshis. This means there be a maximum: ...
2
votes
1answer
20 views

Error: Wallet backup failed! (code -4) when setting up bitcoin-qt for first time

I downloaded and ran bitcoin-qt to play around with. First thing I did was create a wallet passphrase. The second thing I did was try to create a wallet backup. Then I got this message: Error: ...
-1
votes
0answers
17 views

How do I transfer my money in the bank into a bitcoin? [duplicate]

I see all of these different websites for bitcoin wallets, but I can't tell if they're legit. i'm so confused. Thanks!
3
votes
1answer
43 views

Is it true the genesis block reward can't be spent forever? [duplicate]

Is the genesis block reward forever unspendable?
0
votes
0answers
15 views

Logos cannot make connections or download blockchain [duplicate]

I have downloaded Logos' source code mentioned below links, I have also able to create the Genesis Block of that. The GUI application shows zero "active connections" on bottom right corner icons. It ...
2
votes
2answers
158 views

Can an attacker create many nodes that approve blocks without work?

There are currently about 7000 nodes in the Bitcoin network. The security rests on the fact that someone adding nodes would have have to expend CPU power to hash transactions. What prevents someone ...
-1
votes
1answer
16 views

I am not able to connect to download blockchain in logoscoin. It shows active connection, I am also attach debug logs below:

2015-01-24 06:18:15 Logos version v0.8.6.4-ga5aedeb-beta (2015-01-22 22:29:38 -0800) 2015-01-24 06:18:15 Using OpenSSL version OpenSSL 1.0.1f 6 Jan 2014 2015-01-24 06:18:15 Default data directory ...
1
vote
1answer
29 views

Does createrawtransction accept scriptPubKey and redeemScript as inputs?

According to the built-in RPC documentation the signature for createrawtransaction is: createrawtransaction [{"txid":"id","vout":n},...] {"address":amount,...}. Gavin in his example on 2-of-3 ...
0
votes
0answers
23 views

json_rpc_call solo mining with bitcoin running on Windows 7 for antminer

I setup BitcoinD on a Windows 7 PC. I configured for defaults except user/pw and rpcallowip=192.168.1.0/255.255.255.0. have also tried 192.168.1.* with no luck. I ultimately want to use an Antminer ...
4
votes
2answers
81 views

Precisely what did Mt. Gox do wrong?

Everyone likes to trash Mt. Gox. There is a ton of hearsay out there. Can someone produce real evidence of their poor business practice? I was hoping to find their old website FAQ for example. ...
1
vote
1answer
8 views

How to restore a backup made when using the big 20 Gigabyte Core Wallet to current MultiBit wallet?

Been running an s3 with slush's pool for a month or so and accumulated maybe 20% of a Bitcoin. I started out using the gigantic Bitcoin Core Wallet because when I first learned about Bitcoin a couple ...
1
vote
1answer
17 views

What are the limitations to an outdated backup?

My backup private keys were made in Jan and my computer crashed in May. If I upload the keys on a new wallet, will it show my bitcoin balance from May or January?
1
vote
1answer
23 views

What are bitcoin/altcoin block notifications?

While setting up a private nomp mining pool as a learning project, The instructions recommended setting up block notify. What are block notifications?
5
votes
2answers
92 views

What changed about coinbase.com to make it a “regulated exchange”?

It's all over the news that coinbase today is opening "will open the first regulated bitcoin exchange in the U.S.". But what exactly is the news here? Hasn't coinbase been serving customers from ...
0
votes
1answer
35 views

What exactly are Bitcoins? [duplicate]

I've heard the term several times. I know that it's an online currency, but I'd like to know more, without having to search too hard. My main questions: What can bitcoins be used for? Where does one ...
1
vote
2answers
78 views

I want to accept bitcoin on my raspberry pi

I have a web server running on a raspberry pi and I want to accept bitcoins. I have very little disk space so I don't have room to install bitcoind. I don't trust any third party services to process ...
0
votes
1answer
22 views

LTC Pool With Friends?

Is there a way I could set up my LTC mining pool so that my friends could join? I've been having really good luck lately!
0
votes
1answer
29 views

What roles of WIF(Wallet Import Format)?

I am reading "Mastering Bitcoin" written by Andreas and I found this explanation about "WIF(Wallet Import Format)" Key Formats Both private and public keys can be represented in a number of ...
0
votes
0answers
20 views

Downloaded electrum, restored an old wallet, now BTC are stuck. How can I get them out?

How can I send them or reset password? Everytime I try to send it says invalid password. I tried by a couple different ways without luck. I deleted the wallet. Then I downloaded again and created ...
3
votes
1answer
48 views

Is there a fixed order for all transactions in the block chain?

Every block in the block chain contains a list of transactions. This list has a certain order which is basically set by the miner introducing the block. The merkle root in the block header requires ...
0
votes
0answers
21 views

Has anyone ever used LibertyX?

I have recently heard of LibertyX (libertyx.com)which is buying bitcoin in person at certain retail locations. It has a similar vibe to localbitcoins however they only accept cash. Has anyone used ...
2
votes
1answer
61 views

UPDATED: -25 when pushing multisig

I am trying to push this correctly signed 2/3 multisig to the network (based on Gavin's example) and I get RPC_VERIFY_ERROR = -25, //! General error during transaction or block submission: The ...
0
votes
0answers
12 views

Any efficient way to broadcast pending transactions?

A user creates and signs a transaction & broadcasts it to his linked-peers, the peers then rebroadcast it again without necessary receiving an inv message, then creating a flooded network with ...
1
vote
2answers
50 views

pycoin command line transaction

Is there a quick way to do transactions knowing only the private key(secret exponent) and the destination address, preferably from a command line utility such as pycoin? I am using Debian/Ubuntu and ...
1
vote
2answers
165 views

Bitcoin spend before received

When browsing the Blockchain I came across this address. It seemed peculiar to me, that the amount of 0.6 BTCs has allegedly been spend before received. Is it because the "receiving transaction" ...
1
vote
1answer
16 views

What are pros and cons of txindex option?

I am reading "Mastering Bitcoin" written by Andreas and I found this explanation about "txindex option" Transaction Database Index and txindex Option By default, Bitcoin Core builds a ...
1
vote
0answers
12 views

Is there a source for historical LTC trades available?

From bitcoincharts.com can download historical trade histories for BTC on various exchanges vs various currencies. Where can I find something comparable for LTC? I want to get historical trades ...
0
votes
0answers
25 views

Bitcoin Core shows error message

I have used Bitcoin Core for over 02 months it ran so smooth, but today i open Bitcoin Core and it show error message like this image: Bitcoin Core (OSS GUI client for Bitcoin) has encountered a ...
2
votes
3answers
105 views

Can an exchange work which does not have control of the private keys?

It seems like there is really no great way to exchange USD for BTC. Having to trust an exchange with your private keys is undesirable. I'm wondering if there is a way to utilize the convenience of ...
0
votes
0answers
12 views

New user looking to purchase bitcoins [duplicate]

So I am new to this whole Bitcoin deal, how do I get my own bitcoins?
1
vote
1answer
62 views

What is a block?

I know bitcoin has a block chain that is from my best representation a list of blocks. I know the block holds many transactions. But i'm still very much lost as to what a block is and how a block can ...
1
vote
1answer
38 views

What is criteria of mining priority except for transaction-fee?

I am reading "Mastering Bitcoin written by Andreas" and I found this explanation of mining. Transactions are added to the new block, prioritized by the highest-fee transactions first and a few ...

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