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1answer
42 views

How many BTC have been paid in fees, in total?

Is there a graph or some data points for the total BTC paid in fees? I'm interested in total BTC as % of the issued BTC at various points in time as well.
0
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0answers
25 views

LONG with NO LEVERAGE vs HOLDING

Can someone explain to me what is the point of going LONG with NO LEVERAGE(isolated)? Isn`t it same as just HOLDING Bitcoin? Bassicaly if I hodl, then sell for higher price I get same money(BTC) as if ...
-1
votes
1answer
18 views

Is IQmining worth the investment? [closed]

I am interested in investing in crypto-contracts, is IQmining worth the investment?
1
vote
1answer
32 views

Conditions for recovering a p2pkh bitcoin private key

Apart from Re-using same R value, What are the necessarily ecdsa values needed or method to recover the private key of a p2pkh address. When same address is reused numerous times to receive bitcoin ...
0
votes
1answer
24 views

Lost / Forgotten Wallet?

I have this issue I have... When I first started using crypto currencys I used a lot of wallets ... etc trying to get a feel for what I wanted.. so ... Now I have a wallet that reads . 01 BTC balance ...
0
votes
1answer
22 views

Can a block have multiple coinbase transactions? Also is there a limit to the number of signatures a multi-sig transaction has or requires? [closed]

I am wondering if a block can be created with multiple coinbase transactions. The US government regulates mining pools that have control over the miner's wallets, so it would be fabulous if this could ...
1
vote
1answer
57 views

what is measured in units of sat/kw?

Whilst learning about bitcoin & lightning fees I have encountered the abbreviation sat/kw a few times, most recently here: Why can’t lightning tx’s be signed with sighash single to allow for fee ...
1
vote
1answer
23 views

Is it possible to recreate a multisig wallet with just 2 out of 3 private keys?

Example: Created a 2 of 3 multisig wallet in Electrum Send funds to the multisig wallet Lost the Electrum wallet Access to two of the private keys (e.g. 2 trezors) Is it possible to recreate the ...
5
votes
2answers
6k views

Bitcoin successfully deducted on sender wallet but did not reach receiver wallet

Here is the wallet address for receiver: 1Gouzjo9Jav1k4AmRoUJJMzidVfnMoSieS. I had used the Blockchair site to see and track status. Based on the details, account had seen receiving last 21 hours. ...
-1
votes
1answer
44 views

If Bitcoin hits $100,000 how much is 0.01 Bitcoin worth in $? [closed]

Just trying to figure out and calculate how much 0.01 Bitcoin would cost in $ if 1 Bitcoin hits $100,000.
0
votes
1answer
37 views

Output and bitcoin spent what does it mean? I need help

Hope you are doing well, I'm new to bitcoin. Please does this mean I received $61.213.88 in my account? Or the total output of all my transactions it shows 2 bitcoin addresses under, what does "spent" ...
2
votes
2answers
41 views

What is a decent value for Time Lock Delta on a lightning network node?

Looking at the settings of some nodes on 1ml.com, I noticed the Time Lock Delta variable could vary a lot. How does it affect a node, and what is considered to be a decent value for it?
0
votes
2answers
39 views

How does a node find the active chain?

Let's say a user joins the Bitcoin network and downloads the latest state of the blockchain (all blocks, which includes the forks/uncles). How does this user find/determine the active blockchain on ...
1
vote
2answers
41 views

Bitcoin value as int64_t or as double

I want to do program that doing some calculations with bitcoin values. I know bitcoin have 8 digits after decimal point (please correct me). If I store the value as double I worry that I might lose ...
0
votes
0answers
34 views

Can't decrypt bitcoin core wallet, did I made a backup at the wrong time?

I am confused on why my bitcoin core wallet password would not work. I am 90% sure I tried the right password(s). wallet has many receiving addresses (10 000), I generated them with Linux from ...
5
votes
2answers
140 views

What are the key differences between regtest and the proposed signet?

What are the key differences between regtest and the proposed signet? One of the key differences is that using regtest is not ideal for public networks as anyone anywhere can just rewrite the ...
1
vote
1answer
28 views

Creating my own script for proof of reserves

I recently came across the topic where exchanges have to constantly give a proof of solvency to prove that they hold enough bitcoin for it's clients. I was however intrigued by the way an exchange ...
1
vote
0answers
16 views

Can I recover my USDT sent to a USD/PAX? [closed]

HI I sent USDT from my binance account to usd/pax blockchain wallet how i can recover that funds please ?
0
votes
0answers
14 views

Blockchain API address subscription doesn't work

So, I'm using the API provided by blockchain.com to track specific bitcoin addresses. This requires a websocket which I installed. It works for about everything except for the address subscription; it ...
0
votes
0answers
26 views

Loading private key (missing bitcoin)

I exported the private key from a 0.7.2 because I could not how to upgrade the wallet. I then imported it into 0.18.0 I was expecting to see a balance and the transactions and nothing was found. I ...
0
votes
1answer
39 views

Is there any full node supporting multiple crypto currencies like BTC, BCH, Litecoin?

I want to use JSON-RPC protocol in my application such that it should support multiple crypto currencies.Is there any single full node supporting multiple cryptocurrencies.
0
votes
0answers
17 views

Curiosity on P2PKH and P2PK [duplicate]

I have some question on the P2PKH and P2PK they are two methods for locking the output, is a correct definition? Why the P2Pkh was introduced inside the bitcoin? Also, the P2PKH is identified with the ...
1
vote
1answer
37 views

Prove that xpub matches xprv?

I'm researching a paper wallet system where I generate an HD xpub/xprv using an offline laptop. I write down the xprv by hand. I capture the xpub via QR code using my phone, to transfer to an online ...
1
vote
1answer
36 views

Is UTXO synonymous with leftover money in an address?

Is UTXO synonymous with leftover money in an address and the only reason UTXO is even a concept is due to security concerns of not changing an address after every transaction? Hence, your "unspent ...
1
vote
0answers
10 views

Inconsistent Volume Data from Gdax API

I've queried Gdax API in the past and it seems that the API is currently returning a completely different data set for 'Volume'. For example, when I queried the API for historical BTC prices around 1 ...
1
vote
0answers
14 views

Command 'electrum' not found [migrated]

I just installed (using sudo -H) electrum 3.3.8 on 18.04 LTS ubuntu and it looks like everything works: the results of python3 -m pip install --user Electrum-3.3.8.tar.gz[fast] are: Successfully ...
1
vote
0answers
22 views

How can I get stealthVersion from bitcoin's source code?

I found that a library called Bitcoinkit use stealthVersion. Network.swift public class Mainnet: Network { ... override var stealthVersion: UInt8 { return 0x2A } ... I tried to ...
2
votes
1answer
28 views

Error after reindex

Hello after I got an db error.. I try to reindex my db. But I got this error: ERROR: ReadBlockFromDisk: Errors in block header at FlatFilePos(nFile=75, nPos=117947311) So what can I do to fix it ? ...
1
vote
1answer
14 views

How used the getrawtransaction for fin the tx blockchain

How used the getrawtransaction to find the tx blockchain? inside the documentation says to use the -txindex, can you give me an example for the complete command please?
1
vote
0answers
27 views

Is transaction verification called mining in blockchain? [duplicate]

A transaction in which A sends $10 to B; then this transaction is published in the network. Now, how the other nodes C and D will know, whether A is having $10 or not. and why A should reveal his ...
3
votes
0answers
14 views

How can I force estimatesmartfee to return estimates on regtest?

Creating an app that utilizes estimatesmartfee, and it works in production, but I use regtest for automated testing and can't get it to return a value. Looking at bitcoind tests it is splitting UTXOs ...
2
votes
0answers
32 views

Using the Proof of Reserves utility developed by blockstream

I was looking into the various methods that can be used to generate the proof of reserves and came across the open source version created by blockstream to generate the proof of reserves( https://...
1
vote
0answers
11 views

LCC Electrum Wallet Set Up With Ledger Nano S Cannot Find Private Keys, Sweep or Generate Seed [closed]

I have a problem with Electrum LCC Wallet. I set up the wallet using Ledger NANO S and seems it somehow attached itself to the LTC wallet in Ledger. I get this message every time I want to send LCC ...
1
vote
0answers
21 views

Unknown command name and packet magic for bitcoin packets at the start of blockchain transactions

Recently I captured a part of blockchain when my bitcoin wallet started to syncing for the first time. I analyze about 10 Gb of traffic which was for primary transactions of bitcoin. wireshark can ...
1
vote
0answers
26 views

how private key is stored? [closed]

How is the private key or master seed managed on iOS or Android? In copay, using Secure Enclave? And as for Android device how is the private key or master seed managed?
0
votes
1answer
29 views

What does the scriptSing contain when it is decoded with RPC framework?

I'm trying to get the wallet id from scriptSing and ScriptPubKey. When I decode the scriptSig, the result does not contain the address address. But when I decode the scriptPubKey, it contains the ...
3
votes
1answer
188 views

Is it possible to do a 3-of-5 OR 1 multi-sig for backup purposes?

I'd like to create a multi-sig wallet where I can freely create transactions, but I want to give keys to trusted friends/family + a safety deposit box so that if I hit my head and forget my password, ...
1
vote
2answers
35 views

How to use `scantxoutset`

Looking to fetch the UTXOs for a given address and can't seem to find the correct command syntax. Here is an implementation in bitcoin-core via javascript, but I also experience the same on bitcoin-...
2
votes
1answer
348 views

Does proof-of-work contribute directly to prevent double-spending?

I know similar questions have been asked before (e.g. How proof of work prevents double spend) but I'm struggling to visualise the solution to double-spending being directly reliant on proof of work. ...
1
vote
2answers
299 views

Is verification of a blockchain computationally cheaper than recreating it?

One of the advantages of cryptocurrencies like Bitcoin that is often repeated is how hard it should be to manipulate past transactions. The reason that is often stated is that you would have to re-...
0
votes
1answer
20 views

what file/method is block reward processed?

I have managed to build an altcoin (from litecoin source) but my coin requires that I make changes to the way rewards are made. I have been looking at the source code to try to find where block reward ...
1
vote
3answers
91 views

How does a wallet get the public key from an address?

I was under the impression that addresses are just an encoded, hashed public keys with a prefix and that only the public key is used on the blockchain (not the address) for transactions. But if the ...
1
vote
0answers
14 views

lnd fails to find UPnP device

I'm following the RaspiBolt guide to setup a lighting node. But when I start lnd and unlock the wallet, the applications fails: 2019-08-03 11:28:08.659 [INF] LNWL: Opened wallet 2019-08-03 11:28:08....
0
votes
1answer
30 views

Miners conceding forks

When bitcoin forks, does anyone know how many blocks ahead one chain gets before the miners on the shorter chain concede? I am doing a research project on modeling Bitcoin, and I am wondering how ...
1
vote
2answers
47 views

How does one prove that they sent bitcoins to an unspendable wallet? Proof of burn?

How does one prove that they sent some BTC to an address that no one has the private keys for? Is there an address that one can send to? Basically proof of burn.
2
votes
2answers
50 views

Probability an honest node finds the next block vs. probability the attacker finds the next block

I am trying to understand Satoshi's paper [1]. On page 6 of the paper, he calculates the probability that someone can attack the blockchain from z blocks behind. He begins by defining: My question: ...
1
vote
1answer
70 views

Bitcoin block headers download

i need all block headers hash (about 500k records), i tried to get from electrum wallet files, but when i convert the file to Ascii, it doesn't have full list. please help.
1
vote
0answers
22 views

Does finding neighbors in Bitcoin consider locality and hop count?

When the list of neighbors is being gathered by a new nodes in the network, does it consider the distance between the nodes to find closest possible, or it just takes some random nodes? In other words,...
2
votes
2answers
359 views

Single-hop Payment vs Multi-hop payments

I am beginner of lightning network. When i am looking roughly lightning network whitepaper, i was confused about the types of contracts used in single-hop and multi-hop. As far as I understand, In ...
1
vote
0answers
22 views

How often does a node connect to a random node?

I'm trying to understand the likelihood that a node would connect to a sybil attacker, and the critical piece to this that I don't understand is: how often does a bitcoin node connect to a random node ...

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