All Questions

1
vote
1answer
28 views

Mining Pool Hub // Shares? (New Miner)

So I have 13 Total Shares (Non Rejected) and my pool is Mining Pool Hub. It does not show that I have gained any Ethereum when I go to Dashboard (Under Ethereum) on Mining Pool Hub. Do accepted shares ...
2
votes
1answer
45 views

How is node capacity determined on 1ML.com?

I have set up a Casa node, using lnd, and opened 15 payment channels. The capacity of my channels, after almost 3 weeks, is exactly what it was when I opened the channels, leading me to believe that I ...
1
vote
1answer
27 views

Could bitcoind support SPV mode by setting different args

There are multi nodes type could be used in bitcoin network. Could bitcoind support running different types of nodes by different sets of args? I found many discussion here, but seems no clear ...
0
votes
1answer
31 views

How to see download sync speed when syncing the Bitcoin 0.17.1 Blockchain on Ubuntu 18?

I'm syncing the bitcoin 0.17.1 blockchain from the beginning on Ubuntu 18 using Bitcoin Core Qt gui client. Is there a way to see the download speed of the Bitcoin Blockchain and how much time I have ...
3
votes
1answer
417 views

After downloading the entire Bitcoiin blockchain from a torrent, what are my next steps to link it to Bitcoin Core 0.17.1?

I downloaded the entire bitcoiin blockchain into my external mounted drive as seen below and named the directory bcore. I then did a symlink to that folder like this in my home folder (~) location : ...
0
votes
1answer
21 views

How does Bitcoin use its communication protocol and its database model?

In terms of Bitcoin's communication protocol, how does Bitcoin allow nodes to communicate between each other? Is Bitcoin's communication protocol the same as IPFS(InterPlanetary File System) and if ...
0
votes
0answers
16 views

Running ElectrumX with btc-rpc-explorer

btc-rpc-explorer is a great open source node app for browsing a full node. It is without db so you can't browse transactions for addr but you're supposed to be able to connect it to ElectrumX. Does ...
0
votes
0answers
27 views

BitcoinJ manually sign P2SH output

I'm trying to create, with BitcoinJ, something similar as the one stated in BIP16: scriptSig: [signature] {[pubkey] OP_CHECKSIG} scriptPubKey: OP_HASH160 [20-byte-hash of {[pubkey] OP_CHECKSIG} ] ...
1
vote
3answers
49 views

Generating bitcoin wallets for my customers

I run an application written in PHP and need to add the option to buy services with bitcoins. So, for each user i need to generate a unique, unused bitcoin address. I could generate X number wallets ...
1
vote
1answer
43 views

Why Ardor does not use Maven?

Are there some reasons why maven and standard maven directory layout are not used in Ardor?
1
vote
1answer
55 views

Detect received transactions of thousands of Bitcoin addresses

I'm implementing a Bitcoin payment system that generates bitcoin address for each user to deposit. I use BitcoinJ to generate user's addresses and rawblock API from Blockchain.com to get every single ...
0
votes
1answer
38 views

How does bitcoin broadcast information?

On Bitcoin's Blockchain, how is information transmitted instantly to all other nodes and do nodes 'talk to each other' through an API? Do Blockchain nodes communicate with each other through HTTP ...
-1
votes
0answers
16 views

BTCUSD vs BTCEUR

I am looking at long-short position from bfxworld and found this,please can someone explain me long increased in btc/eur but no change in btc/usd. check bfxls ]
0
votes
1answer
20 views

addnode vs seednode

Could someone please elaborate on the difference between the addnode and seednode settings in the bitcoind configuration file. -addnode=<ip> Add a node to connect to and attempt to keep the ...
1
vote
1answer
39 views

Security implications of removing CHECKSIG in a test

If I conduct an htlc transaction on testnet that does not include OP_CHECKSIG will it still cost an attacker more than (say) $10 in processing power or storage to subvert my tests? Details: I'm ...
0
votes
2answers
44 views

How long does it take to update all nodes that have the blockchain so that they are identical?

Beginner questions... I understand that everybody has their own copy of the blockchain. If one person makes a change, for example a transaction, I assume that it has to propagate to all other nodes....
-1
votes
0answers
17 views

Reliable nightly download of blockchain data

Is there a reliable night download able blockchain file? The sync is now on its 3rd week. And getting slower. Many cpnfigs tried.
0
votes
1answer
12 views

wallet that does not abstract change addresses?

I wanted a hands on approach to see change adresses myself instead of hiding away all the details. I also want to see non-deterministic wallets just for education so that I can understand. When we ...
0
votes
1answer
33 views

Is it possible to withdraw other cryptocurrencies besides bitcoin (ex: etherum) into a Bitcoin paper wallet?

I've been wanting to know if withdrawing other cryptocurrencies into a bitcoin paper wallet would be incompatible with that system. I haven't tried it myself.
-1
votes
0answers
10 views

Hyperledger Blockchain hash function and public-key encryption

I am wondering what is a hash function and public-key encryption that uses to sign any transaction in Hyperledger blockchain platform?
1
vote
1answer
34 views

What is the meaning of in-script and out-script in standard bitcoin transaction?

I am new to bitcoin world and I am reading this paper: Secure multiparty computations on Bitcoin https://eprint.iacr.org/2013/784.pdf The author said on page 7 that the standard bitcoin transaction ...
0
votes
1answer
21 views

Representation of coordinates in signature. OpenSSL

I want to calculate the v-value from the signature obtained using the OpenSSL ECDSA_do_sign function. I found that this value is calculated using the parity of y-coordinate of r. Here I also found ...
-1
votes
0answers
16 views

Having Bitcoins from Faucets

I have tried different bitcoin wallets. And also some Bitcoin faucets. Some faucets requires compatible wallets for their free Bitcoins. Is it really free? How does one know that the free Bitcoins are ...
-1
votes
0answers
16 views

Cold storage/signing

Anyone have a link to a good cold storage setup for signing larger transactions? Example: old pc with monitor (camera?) in basement to take a transaction and sign it and produce a qr code to be ...
0
votes
1answer
33 views

How can I tell when `rescanblockchain` is finished?

Rescanning the blockchain can take some time. How can I tell (via RPC) when the rescanblockchain command has finished? Will it block until it's done, and only then return? Or is there another RPC I ...
-1
votes
0answers
10 views

What is mining? [duplicate]

When I open some Bitcoin sites, it was usually had that mining part. And some I try to open. And I find it slow to have hashes.What can one do to make it faster? And what is mining really?
1
vote
2answers
26 views

Mining: what is the lowest possible target? Could it be a block hash of all zeros?

I had a basic question about Bitcoin mining. I understand that as the bitcoin difficulty adjustment becomes harder the hash output will require more 0s in the beginning of the hash. Is it ...
0
votes
0answers
18 views

Does DASH have a separate name for it's smallest unit, like Satoshi with BTC?

Satoshi's are 10e-8 BTC, the smallest currently supported unit. Wei is the name for the similar smallest unit in Ether. Does Dash have a name for it's smallest unit?
2
votes
1answer
21 views

How to convert from Ardor time to Unix time?

What is the best approach to convert from Ardor time to Unix time?
0
votes
2answers
54 views

Is there a limit to the number of Bitcoin addresses? [duplicate]

Is there a limit to the number of Bitcoin addresses? And if so, what stops someone from making all these addresses and holding the private keys for them so no one else can make a new public key?
0
votes
1answer
35 views

Loading to Bitcoin wallets

I've downloaded some bitcoin wallets because I am planning to load some amount in it using my ATM. But I don't know how. Will somebody help. How can I have some bitcoins in my wallet?
0
votes
1answer
26 views

Do u really need more than %50 mining power in order to attack bitcoin blockchain?

my question is about concept, so code is not related, however, do you really need %51 of the mining power in order to attack/replace the real bitcoin Blockchain? For example, a blockchain has a ...
1
vote
1answer
17 views

What is the current state of the Hashcash protocol that is cited in the Bitcoin whitepaper?

I have been reading the Hashcash paper which is referenced in the Bitcoin whitepaper. I would like to know what is the current state of the Hashcash protocol and what are the services that are ...
-1
votes
0answers
13 views

How to have a functional Bitcoins Wallets [duplicate]

How does Bitcoins works and how to have a correspond wallet?
-2
votes
0answers
15 views

How to clone and create an altcoin using electron & electron.js [on hold]

Is there a guide or method for cloning or making an altcoin on the electron.js framework? I know I can use npn to download a bitcoin client for electron.js but I don't see a way to download a ...
-1
votes
0answers
16 views

New on board educate me please [duplicate]

Please am new here, how do I earn bitcoin? & how do the whole process work to put money in my account?
-1
votes
0answers
35 views

How long does my BTC show up after recovering using 12-word list?

I'm using myCelium and I lost my phone. I installed MyCelium on my new phone and recovered my wallet using the 12 words. But my wallet still show 0 BTC even after a few hours. How long does it take? ...
1
vote
2answers
31 views

Valid public key check in transaction output

Let's say I build a P2MS output script using uncompressed public keys, and let's say too that these public keys are not valid, i.e. they do not represent a valid EC Point and they don't start with ...
0
votes
1answer
43 views

Ownership of private keys in the Lightning Network

My question refers to the technical side: who is holding the private keys if a third party is using my lightning node to participate in the Lightning Network payment channel ? Thank you
-1
votes
0answers
23 views

Insert BTC blocks and transactions in mongodb

I am trying to insert bitcoin transactions into MongoDB using python3. Below is my code : import pymongo import sys import json import time from bitcoinrpc.authproxy import AuthServiceProxy, ...
0
votes
2answers
54 views

Can bitcoins be traced to scammers

Was scammed recently of €5600 .Was approached online and encouraged to buy bitcoin through coinbase. I had no experience of it before. Was told to send my bitcoin to a company address which I now know ...
0
votes
1answer
17 views

Search for BTC transactions by amount range

It is possible to search transactions by amount range using blockchain or other website without having hash, just by range or exact amount?
-1
votes
0answers
31 views

Sharing datadir for multiple bitcoind on a host

I was skeptical about sharing a datadir for multiple bitcoind running on single host (in containers). [Sharing because it saves disk bandwidth and space] Because older blocks are immutable, they ...
-2
votes
1answer
37 views

How to develop a scalable web cryptocurrency robot? [closed]

I'm trying to develop a robot that will work in the cloud, basically it will buy and sell crypto-coins according to the strategies defined by the users, but I still can not think of a solution to ...
0
votes
1answer
28 views

How does the Bitcoin network maintain the chains created when two nodes generate different versions of the same block?

I came across these lines from the Bitcoin whitepaper: If two nodes broadcast different versions of the next block simultaneously, some nodes may receive one or the other first. In that case, ...
2
votes
1answer
216 views

Are “1” , “3” and “Bech” Addresses (BTC) forward and backward compatible?

Wondering if lets say someone has funds in Bech32 and they send to a "1" or "3" address due to less characters to remember ect.
-3
votes
1answer
25 views

How to get private ECDSA key [on hold]

I want to know how to use r,s,z sign and pubkey hex of a raw transaction to get the private key hex
-1
votes
0answers
38 views

Help needed while studying PIVX! ( hash doesn't match nBits, proof of work failed)

I am studying how a blockchain works and I have successfully forked and generated a genesis block for PIVX. I am stuck at a point and connot get past this. The process was as follows: 1) Code before ...
1
vote
0answers
21 views

How to send bitcoin without any fees to different btc address? [duplicate]

Now I am using regular client wallet to spend my btc amount. but it charges me miner fee, sometime it pretty high. I dont want to pay fees anymore. My friend heard about a way to send btc without ...
1
vote
0answers
21 views

Verify bitcoin address and amount from sign transaction

Is there a way i can extract the fromAddress, toAddress, amount and fees from a bitcoin sign transaction? eg: SignTransactionValue = signAddress(fromAddress, toAddress, amount, fees, privateKey) How ...

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