0
votes
2answers
12 views

Does value 'True' at the middle of stack is valid transaction?

If at the middle of the execution of unlocking script + locking script we get the value 'True', while there are remaining values or operators in the stack, is the transaction valid ? or should the ...
0
votes
0answers
3 views

Xemian Xchange Api for Java, returning a default of 100 market orders

For sometime I am using this java API http://xeiam.com/xchange/ for building bitcoin trading robots. Today I got a bit stuck and I wanted to see if somebody had the same issue before. I call the ...
-1
votes
2answers
21 views

Mining strategy

Is there some strategy explained how to keep mining and not depend on old miners getting cheaper and new powerful miners getting expensive to replace? Can I sell old miners and purchase new, but ...
0
votes
0answers
7 views

What is the meaning of sequence number in inputs? [duplicate]

I can't understand the meaning of the sequence number for this 2 inputs transaction, does this number have any sense ? and if so how could it be the same for two different txid ?
0
votes
1answer
7 views

How can I interpret colored-coin raw transaction?

In order to complete a transaction, some parameters should be provided. Such as transfer_quantity (provided in OP_RETURN), destination_address (provided in vout.scriptPubKey) I am wondering where ...
1
vote
0answers
17 views

How much inflation does Bitcoin have, year by year?

What's the M0/MB inflation rate of Bitcoin? Note: I'm asking about multiple years in order to make this question less likely to go out of date.
0
votes
1answer
9 views

In NXT monetary system, how do you transfer the coins complete control to another account?

I purchased a few MS (monetary system) coins and i want to move it to another account completely. I want that other account to also be able to reissue this coin with new settings too. How can this be ...
-1
votes
0answers
14 views

Altcoin with non coin related alternative blockchain use

I would like to ask if there is someone out there with experience in altcoins to help me answer some questions. I would like to alter bitcoin to have a network that does not care about coins. It ...
0
votes
0answers
12 views

Who provides bitcoin recurring payments API?

Recurring bitcoin payments are enabled by the bitcoin protocol? who provides such API service?
0
votes
0answers
11 views

Indolering, Vitalik, Toast.. Is actual hard coding being done on Decentralized DNS, or is it on hold? [on hold]

I've been following your threads on DDNS for some time and I see the topic coming to the forefront now which makes me very happy. I was recently interviewed by Cointelegraph and now another story has ...
1
vote
1answer
21 views

“Sipa” definition? (old terminology, circa 2011-12)

Vanitygen refers to "Sipa" format here: Currently, it is difficult to import the private key into bitcoin. Sipa's showwallet branch has a new command called "importprivkey" that accepts the ...
3
votes
1answer
60 views

Is there a generally agreed on protocol for creating proof of solvency?

After the MtGox incident, a lot of Bitcoin exchanges started pursuing audits and creating a proof of solvency / liability to prove to their users they remain solvent. While proving that one owns the ...
3
votes
2answers
57 views

How does one mine Stellar

I was able to mine Ripple for a time using boinc, will Stellar offer something like this? are there other ways to mine Stellar?
1
vote
2answers
19 views

Is There a Safe Way to Decentralize or Spread Ownership of a Company Using Bit-Coin or Alt-Coins.

We are starting a social enterprise that is focusing on home oriented products and services - starting with real estate brokerage services. The profits from this organization will be used to battle ...
0
votes
1answer
24 views

Can the dollar value of a transaction be different at different times?

Bitcoin value gets fluctuating frequently. Suppose I am transfering bitcoin to another person who is in another country (like my current bitcoin value is $234.97), i am sending the QR code through ...
1
vote
0answers
11 views

How do you sign raw transactions with the electrum command line?

Bitcoin-cli has a signrawtransaction command. Electrum does not, but it does have signtxwithwallet and signtxwithkey. Which one of these can I use to sign a transaction? Also, signtxwithkey accepts a ...
0
votes
0answers
39 views

Is there an altcoin generator with merged-mining support?

I am wondering - is there a service similar to CoinCreator that allows one to generate altcoins with built-in support for merged mining?
0
votes
1answer
16 views

Bitcore Testnet API

Does anyone know if Bitcore offer a testnet API to play around with? I'm implementing an Escrow system using the API and Node.js and don't particularly want to use real Bitcoins. Thanks.
0
votes
2answers
24 views

ripemd160(sha256(publickey)) - Where am I going wrong?

(Note: I'm using http://www.royalforkblog.com/2014/08/11/graphical-address-generator/ (use "bitcoin" as the phrase for generating the private key) I'm trying to take the first step in going from a ...
0
votes
1answer
20 views

Does NBitcoin use hardened private derivation?

When writing the following code: ////////////////1st offline SERVER////////////////// //Create Master Private Key with a seed ExtKey privateKey = new ...
0
votes
0answers
20 views

How to check Bitcoind block chain download progress level without blockchain explorer?

so my problem isn't with bitcoin particularly but with a dying altcoin, I have the same problem as here. But can't use a blockchain explorer site, since there doesn't exist one. Is there any way to ...
0
votes
4answers
53 views

Can someone explain how does Bitshares market pegged assets work?

I'm reading up on Bitshares and they say they have market pegged assets that are linked to USD and Gold (BitUSD and BitGold) They say it holds a stable price and fluctuates somehow to make sure you ...
1
vote
0answers
18 views

Electrum - Why do I have to Restore every time I use it?

I did not forget my password. I have been done dozens of transactions with Electrum, and every time I try to send bitcoins, I get "Invalid Password". So I restore from seed, set a new password, use it ...
1
vote
2answers
18 views

2 nLockTime TXs with same input

What happens if I broadcast two nLockTime transactions with different nLockTime but same input? Is the smallest nLockTime going to be accepted or is it the tx that reaches the network the fastest ...
-2
votes
0answers
9 views

I need some help setting up my cgminer config file [on hold]

Here is my current config file. { "pools" : [ { "url" : "stratum+tcp://uk1.ghash.io:3333", "user" : "kushdragon.derpington", "pass" : "" ...
0
votes
1answer
31 views

Is there anything like a “blank” blockchain?

I'm looking to create a coin with my own method of securing the network. Is there anything close to something I could create my own algorithm and replace that portion of the code with my own? Thanks!
0
votes
1answer
41 views

electrum - how to rename automatic a new wallet?

I am looking for a possibility to rename automatically new wallets. my problem is that when I restore a wallet by terminal I get this error: "Remove the existing wallet first!" But if I rename the ...
1
vote
2answers
49 views

How to import a HD wallet from an extended private key

I'd like to export a derived private key from my Electrum HD wallet, and use it as a HD wallet master key in a Mycelium wallet. I used bx to get the key like this (m/2'/0) (where m is the unencrypted ...
0
votes
0answers
43 views

Pool that seems to be stuck on a block

I'm running a Litecoin pool that seems like it might be stuck on a particular block... it's been working fine all along but is currently at like 312% Of Expected Shares, I've checked the cron jobs and ...
1
vote
1answer
35 views

Can you generate a url from a payment request?

I am writing a java webserver that can use bitcoin as a payment method. Thanks to the helpful advice in this question, I am able to generate payment addresses for various signed up vendors. I am now ...
4
votes
1answer
51 views

Is mainline Bitcoin planning on switching to deterministic wallets?

Deterministic wallets enable reliable backups but the mainline client doesn't use them. I was told that bitcoind and Bitcoin-QT are planning on switching to deterministic wallets by default, is this ...
0
votes
1answer
44 views

Would a service for automated repurchasing of Bitcoins encourage spending?

We launched Reload, an online service that binds your bitcoin wallet to your bitcoin exchange account (16 supported so far): whenever you spend bitcoins from your wallet, Reload will use your exchange ...
0
votes
2answers
22 views

Help me use python-bitcoinrpc

I have got the api working and i can run commands like access = AuthServiceProxy("http://root:123@127.0.0.1:8332") access.getinfo() However not sure how to use more complicated commands such as: ...
0
votes
1answer
74 views

Slush's pool worker offline

I'm new to mining, and using GUI miner on windows 7 AMD APU A-Series. I set it up today, put in my username.workername and put in stratum.bitcoin.cz as the host, and 3333 as the port. It says I'm ...
0
votes
0answers
77 views

bitcoin legally avoiding taxes

I was wondering is there anywhere in the world where you can trade bitcoins while legally not paying tax, and that will stay in a state of not taxing bitcoins for a while? I'm hoping to find a ...
1
vote
1answer
41 views

math to make a full private key have a mini private key equivalent

When creating a private key, how would I ensure that there is a mini private key equivalent, which could be substituted in place of the the full private key? What math would I have to use to create ...
0
votes
0answers
12 views

When all bitcoins have been mined, how can the Block Chain's interaction be supported? [duplicate]

I've understood for a while that bitcoin mining was a process that required computers to solve increasingly difficult problems in order to mine a block. It wasn't until now that I realized those ...
1
vote
1answer
41 views

Without using something like Bitcoin Script, how NEM verify the transaction?

From NEM's thread in bitcointalk, it mentions: NEM doesn’t use so-called “scripts” aka predicates. I understand how Bitcoin use the script to verify the transaction. May I know where I can read ...
0
votes
0answers
17 views

electrum CLI - 'daemon is not connected'

I installed Electrum on my Raspberry Pi. Then, I ran electrum create to make a wallet. Then, I ran electrum daemon start to start the background process. I'm currently trying to query the balance ...
1
vote
2answers
31 views

How can I run an Electrum console command from outside Electrum (in Linux)?

I want to use my electrum wallet balance in my another python application. How do I make a call to the getbalance() function?
-1
votes
0answers
8 views

How to do OP_RETURN tranasction BitcoinJS? [duplicate]

This is not working; Message "Use TransactionBuilder instead." var bitcoin = require('bitcoinjs-lib') var tx = new bitcoin.Transaction() // Add the input (who is paying) of the form [previous ...
3
votes
0answers
42 views

Cannot create a transaction

I am trying to create a transaction on the bitcoin testnet, using bitcore: Error Message : SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data Here is my code: ...
3
votes
1answer
44 views

Theoretical minimum # of logic operations to perform double iterated SHA256?

What is the theoretical minimum number of logical operations an ASIC needs to perform to compute double iterated SHA256, i.e., sha(sha(•))?
1
vote
0answers
27 views

Syncronization time jumps up to 8 days, then down again

I'm relatively new to using the litecoin software. I watched the local copy of the blockchain build all the way down to two days. Suddenly, it jumped back up to 8 days, and then built all the way ...
0
votes
0answers
20 views

Online wallet for betting / customer profile?

I am looking for a system that provides users with the option to deposit and withdraw BTC to a generated address. Basically something that works like https://primedice.com/play and ...
3
votes
3answers
179 views
+50

Using Bitcoin or another Altcoin for Decentralized Database Storage

I was wondering has there been any attempts on using the blockchain as a decentralized database storage system? Would it be feasible to use it on Bitcoin or another Altcoin and if so which altcoin ...
1
vote
0answers
26 views

bitcoind inconsistent authentication error

I am using a Linux computer. The issue I am having is that sometimes I have to use "kill -s 9 (bitcoind pid)" and restart bitcoind using "bitcoind -txindex" because bitcoind will sometimes not let me ...
2
votes
0answers
27 views

jsonRPCClient.php states its served a 401 error response

When I execute my php file from the command line I get this: <pre> PHP Warning: fopen(http://...@127.0.0.1:8332/): failed to open stream: HTTP request failed! HTTP/1.0 401 Authorization ...
0
votes
1answer
11 views

Logging Antminer Statuses

How does one log all an Antminer's statistics (temperature, hashrate, etc.) to a file? I can log in to an Antminer via SSH, so I should be able to turn on some option for cgminer to log everything, ...
3
votes
1answer
119 views

Is it possible to reject a bitcoin payment?

Say someone sends bitcoin to an address. It is later determined that those incoming funds are tainted and the recipient wants no association. What is their recourse?

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