0
votes
1answer
72 views

Why hasn't my bitcoin transaction gone through?

So about 3hrs from now I made a transaction to a different wallet of mine and the money didnt come through in 20mins I checked the blockchain and the number of confirmations kept rising and its up to ...
3
votes
1answer
43 views

How to handle POST data sent from Blockcypher WebHook API

I've been trying to get this to work for the past 3 days and I've all but given up on it. Basically, I've used requestb.in to monitor if any POST requests are going through; requestb.in always ...
1
vote
1answer
23 views

Trying to send Bitcoins from testnet to my regtest node

I send bitcoin regtest server BTC to other bitcoin address of same server. I sent 5 BTC but it shows 50 BTC of that account's associated address. It received 5 BTC. What's the problem with this ...
0
votes
1answer
41 views

how to use bitcoind jsonrpc for regtest or testnet server in php?

i used bitcoind with jsonrpc service. but i added regtest=1 in bitcoin.conf at .bitcoin folder. used: bitcoin-cli -regtest generate 101 bitcoin-cli -regtest getbalance 50.00000000 ...
1
vote
1answer
27 views

Does bitcoin provide non-repudiation?

Bitcoin defines you need to sign the previous hash and the destination public key. By doing so, you assume that you transferred the money. That provides non-repudiation of the transaction to a given ...
1
vote
0answers
20 views

How do I make p2pool accessible from outside my network?

I want my pool to be accessible from the public, i have forwarded port 9332 and 9333 on both udp/tcp, and its still not possible, and the system firewall is open for that, for example i cant access ...
1
vote
0answers
17 views

problems with GUIminer

GUIminer doesn't work with certain CPU through the open CL, there is a specific error with core i3 3217 CPU, the internal GPU on them work well, but when trying to run it through CPU it gives IO error ...
1
vote
1answer
16 views

Will your shares be lost if you restart p2pool before the payout?

Will your shares be lost if you restart p2pool before payout, or is there a way to change the pool setting without takng it down? I'm not sure about the wallet address and I want to change it.
2
votes
0answers
11 views

p2pool not showing hashrate

so i wanted to test these for somewhat educational purposes and maybe make some profit along (highly unlikely), I have downloaded bitcoin core, and synced it completly, started a local p2pool pool, ...
2
votes
1answer
29 views

What order does Bitcoin Core place the inputs it spends in?

What order does Bitcoin core place the inputs it spends in? Is it random? Is it sorted by anything? What, if anything, can you tell about the originator of a transaction by the input ordering?
2
votes
1answer
37 views

Consolidate to one wallet service

I've used a few different apps to create wallets and have decided to narrow down to a single web-based wallet software. Is there some way that I can take the addresses from my other apps and import ...
2
votes
1answer
30 views

Why are change addresses not associated with an account in your wallet?

From what I understand change addresses are automatically generated when you use sendtoaddress but what I don't understand is why these change addresses don't become automatically associated with the ...
0
votes
2answers
33 views

How to tell how many hashes/sec the bitcoin core app on osx is running?

I'm curious how many hashes per sec my cpu is able to perform, is there some way to check this? This is a follow-up to this question.
0
votes
1answer
65 views

How do I restore a Multibit HD wallet from a backup using only a password?

I could not find an answer to this: http://bitcoin.stackexchange.com/search?q=multibit+hd+restore+wallet+password I asked about restoring a wallet from mbhd-*.zip.aes files, and someone said that ...
1
vote
2answers
69 views

What is a Bitcoin wallet?

What is a wallet in the context of Bitcoin? What are wallets used for? What relation do wallets have to other concepts such as addresses, private-keys, client-software, and Bitcoin balances?
1
vote
1answer
149 views

Is it considered safe to create a wallet on blockchain.info?

I created a wallet on blockchain.info. Why is blockchain.info is not listed on "Choose your Bitcoin wallet"? Is the blockchain.info wallet considered safe?
0
votes
2answers
21 views

Understanding basic Bitcoin Transactions: the scriptPubKey.addresses array

I used to think the addresses array into the scriptPubKey (vout) is populated starting from the script, but examining old-fashion multisig transactions, I discovered something made my assumption ...
0
votes
0answers
38 views

Please help! How do I transfer my wallet from bitcoin core to MultibitHD?

I (should by now) have bitcoins in my wallet,I sent them to my wallet whilst i was using bitcoin core but after taking days to sync (and it still hasn't synced) i have given up and installed ...
0
votes
0answers
12 views

In the BIP39 specification, are seeds generated from encoded or decoded passphrase?

From the BIP39 spec: From mnemonic to seed A user may decide to protect their mnemonic with a passphrase. If a passphrase is not present, an empty string "" is used instead. To create a ...
1
vote
1answer
25 views

Blockchain.info returns “None Standard Script Output” when submitting a transaction?

I dont know what is wrong var insight = new Insight('https://insight.bitpay.com','livenet'); insight.getUnspentUtxos('1MkZVyKqNB5jpJDpfhp4TkDikFwdQM44he', function(err, utxos) { if (err) { ...
1
vote
1answer
19 views

Is the mnemonic passphrase enough to backup with deterministic wallets?

I'm using a greenaddress.it wallet, but assume this will be the same for all deterministic wallets. (If not, please correct me!) Since the first and all further bitcoin addresses my wallet will ever ...
0
votes
0answers
30 views

!setBlockIndexCandidates.empty()

!setBlockIndexCandidates.empty() Bitcoin Core 0.11 error Hello, I have a problem with the Bitcoin Core v. 0.11 software!!! I installed the software today and after a long wait (downloading block ...
-4
votes
1answer
52 views

Noob question about mining [duplicate]

I'm not interesting in mining myself, just interested in the topic. I understand that you can still get bitcoin by contributing computation power to a pool (a company) Does only one person/company ...
0
votes
1answer
16 views

Must block contents be stored with the proof that they haven't been changed?

The replication of the block contents across all full nodes has been bothering me for some time. Isn't the header of a block enough for me to validate the block contents if and when I get them (which ...
0
votes
0answers
27 views

Import OLD wallet.dat to new Bitcoin core

i made a wallet.dat backup in an old version of bitcoin qt. The mac where i had wallet is dead. In other mac with the last version of bitcoin core when i try to replace the wallet.dat the app crushes. ...
1
vote
1answer
45 views

Why are there regulations when buying/selling with USD

I'm looking to learn about bitcoin regulations by studying the history of bitcoin. Bitcoin went from being an unknown thing to buy and sell to being heavily regulated. If I back track and look at it ...
0
votes
0answers
25 views

Row of Xs in Antminer S5 interface?

My Problem:("x" in a row on miner configuration page) This is in part of Hardware . in the form of: Hardware Version:X.X.X.X Cg miner Version:Empty And turns on red lights and small on top of its ...
0
votes
0answers
21 views

Blockchain.info not sending my IPN to my website

Ok, so I have set up my blockchain.info API. But when I send a payment to the address given, it doesnt send the data. I use the exact same settings and callback in the testing, and it works amazingly. ...
0
votes
1answer
16 views

Is “previousblockhash” always returned from getblock RPC calls?

Does the getblock(hash) RPC call always return a "previousblockhash" field and if not: under what conditions does it not return this? Background: many algorithms suggest using this field as a way to ...
2
votes
2answers
37 views

Why do transactions propagate?

It seems like miners would have an incentive not to propagate transactions that came their way. Not propagating would both save them a bit of network use and make it more likely that they would claim ...
1
vote
0answers
17 views

Is there a service that can track how a coin flows from one wallet to another visually?

I sent some coins to an address and would like to track how these coins are flowing into other wallets. Is there a service that shows this visually? My main point is that I want to know if these coins ...
0
votes
1answer
26 views

Can a client leave its mark on the blockchain?

Would it be possible for a client (eg the core client) to leave its mark in the form of META data on the blockchain or even in the mempool so that we know that this client was used to create or send ...
1
vote
2answers
259 views

Why should retailers prefer bitcoin over other cryptocurrencies that have shorter confirmation time?

Considering that, waiting 10 minutes for confirmation is too long in the retail world; "zero confirmations" will become more risky once bitcoin popularity is high enough and people come up with ...
0
votes
0answers
38 views

how i can make bitcoin address generator like mycelium gear using php script

this is the code i got,how i can generated new random address using 1 pubkey,everytime page refresh;i try to use timestamp but din't work. <?php // step 1 ...
0
votes
0answers
11 views

Asteroid log question about accepted hash

I setup Asteroid to mine for fun, and I saw this log: (5s):57.30M (avg):57.34Mh/s | A:0 R:0 HW:0 WU:1.0/m [2015-08-06 12:24:25] Accepted 46156bf6 Diff 935/512 GPU 0 [2015-08-06 ...
9
votes
2answers
2k views

Will there be 21 million bitcoins eventually?

Every x blocks the mining reward is halved. Will the reward be halved forever such that we never quite reach 21 million bitcoins, or will we reach 21 million bitcoins at some point and will the reward ...
2
votes
1answer
49 views

Why does an exchange of bitcoin transaction not need to be over a secure connection?

I apologise for my rather ignorant question and maybe my question is completely wrong. But my impression about one of the advantages of bitcoin (digital currencies) is that when a customer pays a ...
0
votes
0answers
96 views

Cannot access blockchain.info through Tor browser?

I created my first wallet using bitaddress.org and put some money in it, which I am not able to spend, since this wallet doesn't have that function. So I decided to import this wallet to blockchain ...
0
votes
0answers
20 views

Q. What happens to dead , or deadended Bitcoins? [duplicate]

NAMASTE! please understand that I am tech challenged! ie. ignorant not stupid! I am trying to learn and sarcastic smartass comments do not help! :-) I am trying to find out what happens to Bitcoins ...
-1
votes
0answers
18 views

Script to run multiple altcoin daemons

Right now i've got 5 altcoin-qt wallets on a vps, configured as masternodes. To limit their memory usage (even if not by a lot) and to facilitate masternode rewards withdrawal, i'm thinking at ...
-2
votes
1answer
40 views

Can you use any Bitcoin address as a Counterparty token receiving address?

I have a bunch of bitcoin addresses and I would like to just use them for receiving counterparty tokens. I've read that counterparty addresses are the same thing as a Bitcoin address. Is this correct? ...
-3
votes
0answers
26 views

Where are my bitcoins?

Yesterday, I sent bitcoins of my wallet to my account to my deposit in nucleus market. But the bitcoins didn't arrive it. Maybe I made a mistake with the address. What can I do now? Please help me.
0
votes
0answers
19 views

How to transfer bitcoins from blockchain.info?

I want to transfer bitcoins from blockchain but I don't know how. I have a bither and I want to transfer it there. How to transfer bitcoins from blockchain.info to bither?
0
votes
1answer
37 views

x , y coordination division

python code def inverse(x, p): return pow(x,p-2,p) p = 0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffefffffc2f #private key 2 -->(x , y) value xx = ...
0
votes
0answers
20 views

What still needs to be improved with Bitcoin?

What issues or loopholes need to be improved upon in Bitcoin? I'm curious to find out, as I've seen people throw around the idea of instant confirmations, increased anonymity, etc..
2
votes
1answer
30 views

How do I prevent Bitcoin from synchronizing?

I have a script that uses Bitcoin's RPC interface and takes a lot of CPU to run, and I don't want Bitcoin to be verifying blocks while I do it. Is there a config setting or an RPC call I can use to ...
1
vote
1answer
95 views

how do I figure out the hash rate of my computer? [duplicate]

My computer has AMD A4-5300 APU W/ Radeon(tm)HD subscore 6.2 Graphics AMD Radeon HD 7480D 4.7 If any one can help , thank you!
1
vote
1answer
530 views

OP_CHECKSIG signature hash type 0

On bitcoin wiki OP_CHECKSIG documentation : Firstly always this (the default) procedure is applied: 1. the public key and the signature are popped from the stack, in that order. If the hash-type ...
-4
votes
0answers
43 views

Where do I enter my banking information to collect mining rewards?

I'm using the GUIMiner, so I don't plan on getting really in to mining presently but I had a basic question. So I click 'Start Mining!', and provided I get a little bitcoin, what then? I know I won't ...
0
votes
0answers
7 views

Mining incentive and bitcoin limit [duplicate]

I am new to bitcoin, Sorry if this has been asked before. As I understand it mining provides the security for the blockchain in that it makes it hard to forge a transaction. The incentive for finding ...

15 30 50 per page