All Questions
-3
votes
0answers
7 views
1OBitcoin$85O http://url5.org/gAA
{10bitcoin-$850}{ http://url5.org/gAA }positive outcome send bitcoin within 15 minutes.accept paypal
{1bitcoin-$109}{2bitcoin-$196}{5bitcoin-$466}{15bitcoin-$1175}
{20bitcoin-$1499}{30bitcoin=$1999}{ ...
-4
votes
0answers
10 views
{5bitcoin-$466}{15bitcoin-$1175}
{10bitcoin-$850}{ http://url5.org/gAA }positive outcome send bitcoin within 15 minutes.accept paypal
{1bitcoin-$109}{2bitcoin-$196}{5bitcoin-$466}{15bitcoin-$1175}
{20bitcoin-$1499}{30bitcoin=$1999}{ ...
0
votes
0answers
8 views
Which blocks did ASICMiner solve?
I'd like to generate weekly statistics that include ASICMiner' solo-mining efforts, but I don't want to have to rely on blockchain.info.
Is there a way bitcoind be queried to reveal with entity ...
0
votes
1answer
17 views
Is Storj still alive as a project?
gmaxwell posted this a few years ago:
https://bitcointalk.org/index.php?topic=53855.msg642768#msg642768
What became of the project?
1
vote
3answers
95 views
If the blockchain records all transactions, how does losing your wallet imply that you lose your Bitcoin?
My understanding is that the blockchain records every transaction that has ever occurred, and that, when we say there are x amount of coins at address y, what we really mean is that the blockchain ...
1
vote
2answers
40 views
Can anamurminers.com be trusted?
I'm thinking about ordering two 63 GH/s Bitcoin miner's from Anamurminers.com Also see: http://anamurminers.com/asic-miner. Can this company be trusted? They say they can ship two to the UK straight ...
1
vote
2answers
30 views
How is the network hash rate calculated?
Miners work on finding blocks but don't sent anything until they find the block.
Considering that, how can sites like bitcoincharts.com display a graph of the network hash rate?
1
vote
0answers
13 views
Stratum service_repository missing
Trying to get stratum working on my server.
When I start the server everything looks ok except I get this message:
***** Is service_repository missing? Add service_repository module to your python ...
3
votes
1answer
40 views
How to take advantage of the free transaction relay policy?
I have about 0.027 BTC total, spread over 272 transactions.
Was going to send them to someone, and then the transaction fees hit me: 0.0245 BTC. This agrees with the answer to this question -- (272 ...
1
vote
1answer
19 views
In Deepbit how do you get the Bitcoins transfered to your wallet?
In Deepbit I've mined a fraction of a Bitcoin. How do I get the money into my wallet? Here it says "Instant payout button is shown when your balance is at least 0.01 BTC and you received less than 3 ...
2
votes
0answers
18 views
rpc.target.bits management?
I have a new question...
Is the max settings for rpc.target.bits 20? I want to match this with our stratum mining software, and how many shares we're getting.
Right now, pushpool is getting more ...
2
votes
1answer
23 views
How does ASICMINER use the blockchain to record share ownership?
My understanding is that ownership of ASICMINER shares (direct ownership, that is; not passthroughs) is recorded somehow in the blockchain, itself.
How does that work, exactly? How can I confirm ...
1
vote
1answer
28 views
The change to the size of blockchain data files
The blkXXXXX.dat files in the new Bitcoin-Qt client (v0.8.1) are about 130MB each in size, which the old ones are about 1.9GB in size. Does anyone know the motivation behind this change?
3
votes
3answers
71 views
Does Bitcoin have inherent value if you can fork the project and create a new cryptocurrency easily?
I like Bitcoin and I like the ideas to create a limited number of bitcoins. However, I see a lot of new crypto-currencies. It seems anyone could fork bitcoin, change something in the algorithm, and ...
1
vote
1answer
23 views
When a difficulty change reaches the upper or lower bound (4x current), what is the implied impact on time per block?
Can someone work out the math that occurs with Bitcoin and Litecoin when the target changes to the hard coded minimum and maximum value, with respect to time?
In other words, if a lot of hashpower is ...
0
votes
1answer
39 views
A Question About P2P Exchanges
Bitcointalk member BTCLuke suggested the following six criterion for a P2P Exchange:
A P2P Distributed Exchange MUST:
Be without any central points of failure, since a government or two WILL be ...
4
votes
1answer
54 views
Is there a wallet for different cryptocurrencies
For a person who has different amount of different cryptocurrencies it is actually annoying to use many clients. Right now just Bitcoin data is more than 15 GB, litecoin 1.5 GB and so on.
Is there ...
-1
votes
1answer
49 views
Is Mt.Gox currently accepting Dwolla deposits? [closed]
I know that Dwolla stopped depositing funds in Mt.Gox due to a court order, but does anyone know if this is still in place?
4
votes
1answer
53 views
What is the database for?
I see the block chain is stored according to the block chain format specification. But I also see there is a database, which is currently a leveldb database. Why is the block chain stored in two ...
4
votes
3answers
88 views
Do miners have to hold all the blocks in memory?
Running a miner node, one would have to verify transactions. This includes checking all the inputs of all the transactions.
Does this mean that a miner must hold all the block-chain in memory ...
4
votes
1answer
40 views
Who came up with pooled mining?
What was the first implementation of pooled mining? Who came up with it?
What protocol did they use and where can it be found?
2
votes
1answer
53 views
What is the hash-rate of the Bitcoin network that results in the maximum difficulty?
According to https://en.bitcoin.it/wiki/Target the target is a 256-bit number.
As the total hash-rate of the Bitcoin network rises, this number decreases to increase the difficulty. How much hash-rate ...
0
votes
0answers
23 views
Mt Gox send_simple API withdrawal with OTP (Yubikey)
I have a yubikey linked to my Mt Gox account.
I'm trying to setup an Bitcoin API withdrawal using: https://data.mtgox.com/api/1/generic/bitcoin/send_simple
However I get error message:
OTP is ...
2
votes
1answer
50 views
Why can't I participate on bitcointalk.org?
I just created an account and spend a frustrating hour reading help menus and trying to figure out how to post or reply to posts.
None of the buttons -- New Topic, Reply, Quote -- seem to be showing ...
1
vote
2answers
36 views
cgminer not working on deepbit.net
I installed Cgminer and created the batch file to run it
cgminer.exe -o http://pit.deepbit.net:8332 -u myemail@gmail.com_workerName -p s3cr3t
but when I run it I get
[2013-05-21 00:39:34] Started ...
3
votes
2answers
30 views
What does this indicator mean in the right bottom cornor of the official Bitcoin wallet?
Circled in red:
When I hover over it I get the message "8 active connections to the Bitcoin network". Should Is this number too low and how do I change it?
3
votes
1answer
52 views
What is mining intensity?
Both Bitcoin and Litecoin have an intensity setting when mining. What does this mean?
0
votes
1answer
145 views
How much would cost to mine a block with Google Compute Engine?
Google has opened its Compute Engine and it has a price list. How much would cost to mine a bitcoin block with Google Compute Engine?
5
votes
1answer
42 views
How to use bitcoinjs with TestNet?
One of my colleagues is trying to use bitcoinjs with TestNet, but apparently it doesn't like TestNet headers, so it doesn't work. Is there any way to make to use bitcoinjs with TestNet? Is there some ...
2
votes
2answers
47 views
test cases for hash algorithm anywhere?
RFC4231 gives test cases for SHA256 with several different sets of gozintas and gozoutas. I'm looking for something similar for the SHA256 hash as implemented in the Bitcoin mining algorithm.
Based ...
0
votes
1answer
34 views
safe offline electrum wallet
There is a good tutorial for setting up a safe offline wallet with a regular bitcoin wallet here.
If I want to set up a safe deterministic offline wallet (i.e. Electrum). What would be the right ...
1
vote
1answer
34 views
MtGox http api “trades since” requests keep being timed out
i wrote a simple function to retrieve trades from mtgox with following HTTP API call:
https://data.mtgox.com/api/1/BTCUSD/trades?since
documented here: ...
1
vote
1answer
40 views
How does a client get the merkle branch of a transaction?
When the Bitcoin client receives a transaction, it checks if the transaction is confirmed. This is done by verifying that the transaction hashes correctly, in the merkle tree, to the merkle root in a ...
2
votes
1answer
41 views
What's the formula that determines the validity of a block?
In other words, that exists a sha256(sha256(block header + nonce)) number under difficulty barrier number.
1
vote
1answer
28 views
What else can bitcoin inventory vectors be used for?
As described in the protocol specification bitcoin nodes respond to the inv command, which queries a node's knowledge of one or more objects, with an inventory vector. According to the bitcoin wiki, ...
1
vote
0answers
13 views
System error Database 1/0 error
I just updated my btc wallet to 0.8.1, I think, to a macbook. Now I can't open it, I keep getting an error message that says "System error Database 1/0 error"?
I'm fairly technically illiterate so any ...
2
votes
2answers
41 views
understanding SPV (simple payment verification)
I try to understand a SPV implementation.
I read: https://en.bitcoin.it/wiki/Protocol_specification and https://en.bitcoin.it/wiki/Thin_Client_Security as well as satoshis chapter 8 ...
0
votes
0answers
43 views
blockchain.info iPhone wallet app sends without transaction fee
I recently sent some bitcoin to a friend using the blockchain.info iPhone app and it sent it with 0 transaction fees. As a result it caused an awkward situation as my friend was watching block after ...
0
votes
0answers
30 views
Matching pushpool difficulty with stratum's
I have a new question for you.
I have setup the stratum mining proxy, and all is working fine. (Actually found our first block recently!)
However, I have pushpool running as well, and some of my ...
2
votes
1answer
27 views
Blockchain.info API error handling
I've been working on a project involving use of the various Blockchain.info APIs (specifically the Blockchain Data API), and am wondering if anyone has tips regarding error handling: the API ...
2
votes
0answers
24 views
Bitcoin-QT Merge Question [duplicate]
Can one import wallet.dat into Bitcoin-QT without overwriting the current wallet? Kind of like a merge function? Or is Blockchain.org the only we to merge wallets together under one account?
3
votes
3answers
75 views
How much do nodes get from blocks, including fees?
I am trying to evaluate how much one could earn as pool owner/solo miner if bitcoin really appreciates in price. To get a number i try to get a figure how much one mined block generates in for example ...
0
votes
0answers
23 views
MAC testnet mining with bitcoin-qt
I configured bitcoin-qt with the following bitcoin.conf file:
rpcuser=bitcoinrpc
rpcpassword=xxx
testnet=1 //needed to work under the testnet.
server=1 //needed to solo mine.
gen=1
Is this correct? ...
0
votes
1answer
42 views
Bitcoin wallet not syncing
My bit coin wallet sync is stuck, if anything the blocks remaining is increasing.
It is not my computer or network because I have another wallet on a different hard drive and that wallet synced in a ...
1
vote
3answers
32 views
Synchronizing Wallet
What is the normal synchronzing time for your wallet when you fist start; because Im using 4G on a wireless and it seems to be taking forever to countdown the number of blocks left to proper sync
1
vote
1answer
76 views
Do I need to wait for Bitcoin-Qt to sync with the network before using GUIMiner?
I'm waiting for Bitcoin-Qt to synchronize with the network, but it takes a long time. I'd like to know if I can start using GUIMiner while it's Bitcoin-Qt is still synchronizing.
1
vote
1answer
30 views
Intermediate pool server
Is it possible to make "intermediate" pool server, which will be gateway to real pool?
I have about 200 pc's, each pc connects to my intermediate pool using own login pass. Intermediate pool should ...
-1
votes
0answers
26 views
Has anyone used Buybitcoinaustralia.com? [closed]
I am relativity new to bit coins. I have used spendbitcoins.com before but today I found a site buybitcoinaustralia.com. They have the cheapest fee I have seen around and claim that I can do the whole ...
4
votes
2answers
266 views
Hacked my blockchain.info wallet, stole 760 coins
Two days ago my wallet at blockchain.info was hacked, everything was taken (760 coins).
https://blockchain.info/tx/0619d221a761a3b8ec205773440fa6607d65957ef985dac5fb5273a08bda2c89
Besides the ...
0
votes
0answers
56 views
Mining Litecoin on FreeBSD
I am currently using Gentoo and bfgminer to mine litecoin using GPU's
My ultimate goal would be to mine litecoin using AMD/ATI 7900 Graphics cards on FreeBSD, I don't need to use a released version ...
