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2
votes
2answers
254 views

Are there studies about a Bitcoin-like economy with inflation?

Assume, we create an alternative cryptocurrency ("InflationCoin") based on the bitcoin software with one change to the protocol: The Block reward is constant, e.g. 50 InflationCoin Technically this ...
0
votes
1answer
18 views

Does bitcoin qt need to synch before I can spend my change?

Sorry for the follow up question... i was trying to transfer my btc to a new wallet (believing the original one had been compromised). I sent 2 tiny test transfers of $1 then when they arrived in the ...
0
votes
1answer
14 views

Importing private key to bitcoin node is slow. Can it be faster?

I have launched the bitcoin node and synchronized it. The issue is that importing the private key forces the node to scan the blockchain for the operations with the key. Is there a way to import the ...
1
vote
1answer
11 views

Timer-based consensus algorithm in blockchain

Assume that there is an algorithm that ensures: 1- That a full node chooses an honest random wait time. 2- That the same node has waited the specified amount of time before proceeding to mine a block. ...
0
votes
2answers
30 views

How to get input address and amount from vin using bitcoin core rpc

I am trying to find details of every transaction using bitcoin core rpc. First, I using bitcoin-cli getblock to get the block data, then use bitcoin-cli getrawtransaction to get the transaction ...
0
votes
0answers
8 views

How to build a bot for a bitcoin dice game

I would like to start learning more about any thing related with cryptocurrency. So at this moment dice game's are very present and we know very little about them. So the only i want to know, which ...
1
vote
1answer
100 views

Has there been a big uptake of merchants accepting Bitcoin Cash?

With Bitcoin Cash still relatively new (August 2017), are there any statistics available on the percentage of merchants who previously accepted Bitcoin, that now also accept Bitcoin Cash, or that ...
0
votes
0answers
7 views

Does Webjs support USTD coin transfer API

from WebJs , there is common API where we can use sendtransaction to transfer coins. But is there any sample or API of how to transfer USTD ? coins ? Appreciate if any can give some guideline or ...
3
votes
1answer
354 views

Is Bitcoin PoW actually SHA256 + Merkle generation? Or have I misunderstood coinbase/append?

Miners can mutate nonce (32 bits) + time (mutates once a second). This allows for 232 (~4 billion) hashes per second. That's not enough anymore for our ASICs as they perform in the TH/s now rather ...
1
vote
0answers
6 views

Bitcoin Core Blockchain Sync Fatal Internal Error - Corrupt Block - Linux

I'm trying to perform the IBD on Bitcoin Core 0.18 and I continually receive "Fatal Internal Error" at seemingly random intervals, closing bitcoin-qt and preventing me from fully syncing. Farthest I'...
0
votes
1answer
181 views

I lost my second wallet password blockchain.om

I lost my second wallet password and I am looking for it. Among them, I used a tool (btc recover) and got the following values. Blockchain second password hash, salt, and iter_count in base64: Yn****...
0
votes
0answers
23 views

Was my transfer hijacked? [duplicate]

I had to take my computer into the shop for a new hard drive a week ago. Worried that my bitcoin wallet (Bitcoin qt) may have been compromised, i setup a new Electrum wallet and one on my iphone. I ...
0
votes
2answers
77 views

Searching for old bitcoin “accounts “

I recall accepting bitcoin payment several years ago when the concept was fairly new. My trouble is, I don’t know what happened to the bitcoin after the receipt. What methods are available to search ...
0
votes
0answers
18 views

Trouble connecting to my lightning network node at port 9735

I'm on Windows 10. I'm already successfully running a full Litecoin node. Disabling Windows firewall has no effect on this issue. I am using litecoind-0.17.1 and lnd-0.7.0-beta. There's 2 things I ...
1
vote
0answers
20 views

How can I set up a simple single page store that accepts Bitcoin payments?

I am looking to set up a simple single page store. This store should respect the privacy of users by not requiring personal information where none is needed. I want to retain control of the funds, I ...
4
votes
2answers
356 views

What system should I implement to make use of accounts with Bitcoin Core 'accounts' now deprecated?

I am designing one of the Bitcoin based app on Bitcoin-Core using account system. Accounts I have used to store users wallet balance in different accounts. But since I know it is deprecated, then ...
0
votes
1answer
23 views

How public-key cryptography secures bitcoin transactions from 51% attacks and Mining Attacks

I wanted to better understand how public-key cryptography avoids 51% attacks and mining attacks, also if this question is wrong please correct so that i can improve my research and provide me with ...
6
votes
1answer
254 views

What are the differences between Bitcoin and Libra?

Recently, Facebook announced to launch a crypto currency called "Libra". Libra is managed by associations under the name "Libra Association", see https://libra.org/en-US/association/. What are the ...
0
votes
1answer
9 views

Strange re-connection problem with python-bitcoinrpc

I am using https://github.com/jgarzik/python-bitcoinrpc to access the bitcoin core rpc. I have found a very strange re-connection problem. from bitcoinrpc.authproxy import AuthServiceProxy, ...
0
votes
1answer
196 views

Someone is using a bitcoin account to blackmail me [closed]

Someone using a bitcoin account is trying to blackmail me. The account number is 1Mtsd3wXgkJnApaNpqaSSWLC6gCLBBxuaGG. I still have the email they sent me. I can also provide that email if needed, or I ...
0
votes
2answers
45 views

Help get specific address private key

I want to know if someone can help me with this situation: Two years ago I changed the password of my Bitcoin-Core wallet and forgot it. I sent my wallet.dat to some person, who claimed that will ...
0
votes
0answers
16 views

How to use Ripple or Stellar to transfer money? [on hold]

I am creating an international donor transfer site using physical money. I want to use RIPPLE or STELLAR technology, but for now I'm researching how to do this with the APIs of these platforms. Can ...
0
votes
1answer
27 views

How to find where coin was picked up

I just recently sent two transactions at $2,500 a piece to a wallet I was given to transfer the money to. The money was transferred and the person has disappeared. I'm wondering how to find out where ...
0
votes
1answer
26 views

How 51% attack is success? [duplicate]

In the paper by Nakamoto, miner can accept the mined block only if all transaction are valid. Assume that there are 5 miners in the world. 4 of 5 are honest that have 10% of 100% hash power and 1 of ...
0
votes
0answers
16 views

The time when the miner get a new block [duplicate]

I am wondering the time when get a reward for new mined block. Theoretically, miner will earn reward when they mine new block. but at that time, there is no way to verify that they really waste hash ...
1
vote
1answer
713 views

What does it mean to go negative on exchange?

I know this is a very basic question, but I am just curious about all this exchange stuff and I'm new to this.. so here goes If I trade at a bitcoin marketplace (exchange) lets say Kraken, Bitstamp ...
0
votes
1answer
15 views

How do I broadcast an OP_RETURN transaction using bitcoin cli

I am using Bitcoin Testnet's command line (and GUI). I am curious how, using my own computer and equipment (I already used a faucet) I could send a transaction easily. I tried https://github.com/...
0
votes
0answers
19 views

About the balance of specific address

I have a question about how to figure out balance of specific address in the Bitcoin. There are many node in the blockchain(total # of nodes are 10000 based on 01/16/2019). but some nodes may have ...
0
votes
1answer
30 views

How to find out if LND opening pending channels has a confirmation onchain?

After typing lncli pendingchannels I get a channel_point number, and when I put channel_point txid to check if it was confirmed onchain by typing: bitcoin-cli gettransaction "txid insert" I get an ...
3
votes
2answers
230 views

To what extent does asymmetric cryptography secure bitcoin transactions?

Is there a specific attack or bug which asymmetric cryptography prevents during bitcoin transactions?
4
votes
2answers
2k views

I want to generate a BIP32 version number for Namecoin and other altcoins

I want to make a BIP32 wallet for Namecoin and other alt coins. I just need to figure out how to generate a a public and private version number so that the BIP32 extended key prefix is something that ...
1
vote
0answers
74 views

Does anybody have contact details for tradebot.bid?

I have a customer service enquiry for tradebot.bid and wish to communicate with them. Does anybody have contact details? All I can identify so far is the privacy maintaining email address on the ...
0
votes
1answer
17 views

What is a mechanism of method how to get the data in the blockchain(e.g. bitcoin, ethereum)?

There are websites which have APIs that allow you to trace transactions and lookup information like specific address balances, etc. I am wondering how these web service providers are able to provide ...
1
vote
1answer
44 views

Bcoin vs Bitcoin Core: query your node to list transactions of any address

I am trying to set up a Bitcoin node. It should be possible to query the node through JSON RPC to get a list of all transactions (including UTXOs) of any Bitcoin Address, which doesn't necessarily ...
2
votes
2answers
34 views

Why does importmulti not support zpub and ypub?

As far as I can tell importmulti does not work with zpub/ypub. Why not? FWIW I prefer only to deal with xpubs, but I am curious.
2
votes
1answer
63 views

How to make a homomorphic preimage/payment hash with current lightning network / Bitcoin implementations?

If I remember / understand it correctly by using the mechanisms from the scriptless scripts paper we could easily create homomorphic preimages / paymenthashes. I think this would be a very desirable ...
0
votes
0answers
16 views
2
votes
1answer
16 views

What happens when i change the encryption password of Bitcoin-Core wallet

What happens when i change the encryption password of Bitcoin-Core wallet? Is first pass lost forever , where is it saved - on the blockchain or on the wallet.dat file? What if encrypt wallet with ...
1
vote
2answers
30 views

How to get historical balance of a Bitcoin address at a particular block number or date?

I would like to get the balance of a Bitcoin address at a particular block number or date. Is there any way to retrieve this data from JSON-RPC? Alternatively, is there any API or blockchain ...
0
votes
0answers
23 views

What role does public-key cryptography play in bitcoin transaction? [duplicate]

Explain in one word and kindly tell what is it exactly that public-key cryptography does in bitcoin.
1
vote
1answer
31 views

What makes Bitcoin transaction secure against attackers/hackers?

Wanted to know what is it that makes bitcoin transaction secure and make it less vulnerable to attackers and hackers
0
votes
1answer
1k views

How to run BitcoinCash node?

How to install and Launch Bitcoin Cash daemon on machine? I have already synchronized full BitCoin node, Here is the link bitcoin.org from here i learn how to setup BTC node I also want to run ...
1
vote
0answers
30 views

Bitcoin LND Lightning Network Daemon, pending open channel, opening transaction never confirmed

I'm running LND 0.7.0-beta on top of Bitcoind 0.18.0 and have a channel that has been pending on opening for more than a month now. It tried to open when I was still running LND 0.6.1-beta. The txid ...
0
votes
1answer
146 views

How to retrieve readable private key from bitcoinjs-lib

I'm still new to bitcoin and experimenting a lot with bitcoinjs-lib in JavaScript. How do I create a readable string from a private key? This is my current setup: const seed = bip39....
1
vote
1answer
428 views

Can I export a xpub/zpub/ypub key in bitcoin core?

I'd like to add a master public key (any of xpub/zpub/ypub https://support.samourai.io/article/49-xpub-s-ypub-s-zpub-s) for tracking purposes to Sentinel watch-only wallet https://samouraiwallet.com/...
1
vote
1answer
188 views

Is it possible to run two Lightning Network nodes on top of single Bitcoin Core node?

I would like to simultaneously run LND and Eclair nodes on top of single Bitcoin Core bitcoind node. Is it possible? I wasn't been able to pull it off so far. If possible, how to set up ZMQ and ...
1
vote
0answers
44 views

statistics on actual “replacement” of blocks [duplicate]

I'm not sure if I'm using the right terminology but I know that theoretically it's possible for a block to be part of the longest (i.e. "main") blockchain but then be "replaced" by an alternative ...
0
votes
0answers
478 views

How can I connect to bitcoind using the RPC interface with PHP?

I can't connect to bitcoin, tried everything, googled extensively and tried but can't resolve. I have a bitcoin.conf file created but I am not sure it is being accessed during the run of "hello.php" ...
1
vote
0answers
23 views

Can't inititate network handshake with my full node

I am running a custom Python script to initiate network handshakes with other nodes. While testing the code I decided to initiate an handshake with my own node but I am getting a timeout error. ...
0
votes
0answers
16 views

I ordered bitcoin currency off of the bitcoin.comwallet app and and I cant access my funds because of blockchain [on hold]

I ordered 55 dollars off of the app. I got an email saying it was approved and they sent me a url to a blockchain website that has how much I ordered and all I see is As you can see my btc currency ...

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