All Questions

1
vote
1answer
26 views

Confused about buy/sell definition in trades history

I'm looking at some trade history provided by the kraken.com API (formatting mine): Price Volume Time Buy/sell Limit/market Remarks ["7833.00000", "0.17400000", 1559721453....
0
votes
1answer
47 views

How can I reverse a Bitcoin transaction mistakenly sent to the wrong address?

I bought a bitcoin cash at a place called Bithumb in Korea and mistakenly copied the bitcoin address and sent it to the wrong. Obviously my fault is, but the fact that I can't get the cancellation ...
0
votes
1answer
23 views

Testnet credentials

How to get testnet credentials to use bit-coin core functions in Node.js. { "Bitcoin": { "testnet": { "username": "name", "password": "sdaddf", "network": "regtest", ...
2
votes
1answer
21 views

Lightning Network on testnet - listchannels and listnodes returning empty values

I have setup a lightning node on testnet using c-lightning. The lightning-cli getinfo command output: { "id" : "0315a5746114ab9f3e8f0a3f2f73153ef1e4a8fb58daa54fa97c9603dfab989a30", "alias" : "...
0
votes
0answers
12 views

Margin Trading on Huobi maximum holding time of loans

I have tried to find this everywhere on Huobi, but somehow its not listed anywhere on their Website. So for those of you who are new to margin trading. basically it is taking a loan from an exchange ...
0
votes
2answers
24 views

Where are the non-scriptPubKey outputs in the chainstate leveldb?

I read https://bitcoindev.network/understanding-the-data/ and it explain that the leveldb of the chainstate contain transaction with at least one unspent output. And it has "The scriptPubKey and ...
2
votes
1answer
52 views

Why is a privacy problem to pay always to the same address?

I know as a merchant it is not a good idea to receive all payments to the same address because then people could track our balance. But I don't understand why it could be a privacy problem if we ...
-1
votes
0answers
21 views

Coins list with date of creation

I'm looking for an up-to-date list of all coins/cryptocurrency. Their is https://coinmarketcap.com/coins/views/all/ but I'm interested to see when they was made public. Other informations like which ...
1
vote
0answers
25 views

how do I mark coins spent in invalid blocks as unspent?

I was just testing bitcoin (v17) in regtest mode with the local, built-in wallet. If I send money to an address (I don't own), generate 1, and then invalidate that block, the local wallet does not ...
1
vote
1answer
32 views

Why is so expensive to buy Bitcoin with Credit Card? [on hold]

There are many sites accepting credit cards to buy Bitcoin, but they charges a huge fee, sometimes is more than 10% (and I think never less than 5%). Why is that? what is the problem with buying ...
1
vote
0answers
47 views

Will Bitcoin mining stop?

According to this site there are 3,260,162.5 bitcoins left to be mined. Do you know if eventually Bitcoin mining will stop after that? If yes which other cryptocurrency can be mined for ever? Thank ...
0
votes
1answer
22 views

Deposit hasn’t appeared [on hold]

I’m very new to bitcoin and need help. I opened a wallet with Coinify/ blockchain app, and subsequently deposited £50 using a debit card. The transaction was declined, so I resent it, but then my bank ...
0
votes
0answers
22 views

Bitcoin wallet address

I generated a paper wallet. Then search Blockchain.com with the public key. There are 2 blockchain results with same public key. 1) BTC address and 2) BCH address. This is confusing. How can I ...
0
votes
1answer
35 views

Confused on using SHA256 code from Bitcoin Core

I was looking at Bitcoin Core code to use its SHA256 code but am confused on where I should be looking at. In bitcoin/src/crypto/sha256.h there is CSHA256 and in bitcoin/src/crypto/sha256.cpp there ...
0
votes
0answers
18 views

Any Cryptocurrency payment method api that creates only one wallet for each user?

I have question regarding payment gateway.For now I am using coinpayment api.It's creating always new address for user to make payment.I want only one wallet for each user and that user can make ...
1
vote
1answer
27 views

Why is it necessary for Multi-Path Payments in Lightning to be Atomic?

One way of achieving multi-path payments in lightning is by having the sender use the hash sent by the receiver to send multiple payments along different paths. The mailing list entry proposing atomic ...
0
votes
1answer
50 views

Needing a Private Key in order to receive profits in Blockchain Wallet

I recently made an investment with Forexbitoptions and have made some profits. They have supposedly sent these profits to my Blockchain wallet but say it's not going through as I need a Private key ...
0
votes
0answers
16 views

How to receive bitcoins in Ledger live with Ledger nano X?

I would like to send my bitcoins of localbitcoins.net to my Ledger nano x -wallet. However, I cannot get the bictoin address so I cannot receive the funds, since the button to receive the funds is ...
0
votes
1answer
38 views

Total Bitcoins in circulation on any given day? [duplicate]

I'm creating a spreadsheet to track total bitcoins in circulation from day 1. This would be to add up each Bitcoin per day created and add to an accumulating total. For example, if we picked any day ...
-2
votes
0answers
24 views

how to get test coin in Bitcoin SV test node?

I have created Bitcoin SV test node, but not be able to get balance. I also use bitcoin sv testnet https://bitcoincloud.net/faucet/ , its 2 days and still no coin received.
0
votes
0answers
13 views

Stochastically, fork can influence on block generation time?

I have known that we can calculate a network hashrate using ellipse time during 1 round(2016 blocks for adjusting difficulty) Stochastically, we can calculate a contribution of all miner for one ...
0
votes
1answer
26 views

Is the transactions in one block effect the hash of the next block? How?

What I understand about blockchain is that: Blocks are secured by the hash. Transactions are secured by the markle-tree. What i'm asking is, does the contents -transactions- of one block effect the ...
0
votes
1answer
16 views

is Gap Limit only for consecutive address?

Suppose we generated 35 address, 1 to 5 are paid, 6 to 34 not paid/used and 35 paid. Because of 20 gap limit we won't see 35 in our wallet, but what happen if we send some money to address 19 for ...
1
vote
1answer
543 views

Gap Limit, is always a problem possible to fix?

I want to accept BTC payments but I'm a bit worried about the gap limit. I've read our wallet could miss the funds beyond the gap limit if that happen. But I also read that we could fix that easily ...
1
vote
2answers
31 views

Are nodes that don't accept inbound connections necessarily leechers?

Gavin Andresen and James Lopp seem to think that nodes that don't accept inbound connections could be called "leechers" in the same way a torrent leecher takes but doesn't give (or at least they did 5 ...
0
votes
0answers
28 views

Has anyone already created this type of ratio, graph or data for Bitcoin?

I am looking to see if anyone has already created this type of ration, graph or data for Bitcoin. The ratio would be: total amount of mined bitoins in circulation (at any given time): the average USD ...
2
votes
1answer
95 views

Does Lightning Network has concept of continuous stream of value?

Examples: Car insurance: $1000 per year. Legal consultation: $500 per hour. Visiting a website: $100 per hour. Assuming 1 BTC = $8000 1 hour = $100 = 0.0125 BTC = 1,250,000 sat 1 second = 1,250,...
2
votes
2answers
32 views

Are BIP39 mnemonics generated with a French list compatible with software that expects English words?

BIP39 specifies different word lists in different languages. But I wonder if the word list generated by a software that gives me French words (e.g. Copay on iOS) can be used to re-create the same ...
0
votes
1answer
31 views

Why tx informations of a specific transfer in BITCOIN protocol will send to many IP addresses?

Recently I send a specific value from a wallet to another wallet and Simultaneously I caputred the related traffics in source and destination. after that, I found that value and it's related address ...
0
votes
0answers
18 views

Sign a transaction with multiple inputs on coinb.in

I'm having trouble signing a transaction with two inputs on https://coinb.in. If I select the Sig Hash Type "All (default)" on the Sign tab and sign the transaction with the private key for one of the ...
0
votes
0answers
23 views

How to delete .dat files? 'rm' command fails with “bad message”

rm: cannot remove '/home/[user]/btc/bitcoin-core/blocks/blk01253.dat': Bad message The same error message when I tried running bitcoind -reindex Info: OS: Ubuntu Bitcoind version: 0.18 External ...
0
votes
0answers
16 views

I need help please [duplicate]

I sent my bitcoin to a bitcoin cash wallet. But it’s the same address as my bitcoin, the wallet is just a watch wallet and my money is just sitting there how do I get it Help me please
0
votes
1answer
16 views

How to get block headers from block hash using P2P API?

I have been experimenting with getheaders and one thing I can't seem to figure out is how to get a header for a specific hash, because getheaders doesn't provide this feature. According to the ...
2
votes
1answer
64 views

Accepting micropayment donations via Lightning Network - what is the most efficient / recommended architecture?

The difficulty that I am experiencing at the moment - how to accept Lightning Network micropayments donations supporting (shameless plug): https://genesis.re/wiki#Plan_B Zap / Joule: I send on-chain ...
1
vote
0answers
17 views

Is it cryptographically possible to have aggregate signature schemes that can improve privacy in UTXO consolidation?

My understanding of Schnorr signatures, Taproot and Graftroot and how they improve privacy in smart contracts / multi-sig is by allowing users to aggregate signatures so the individual signatures and ...
0
votes
1answer
34 views

How to re-secure a multisignature wallet if private key is stolen

Here are two attack scenarios on bitcoin private keys: 1) Assume that, BitCorp has just noticed that a Mallory has just compromised one of their servers holding their Bitcoin Private keys. Luckily,...
0
votes
1answer
70 views

BOLT #3: Shouldn't timeout be included in the script of “Offered HTLC Outputs” for the local node?

According to the BOLT #3 documentation, the offered HTLC output has the following script that allows the remote node to claim the funds with the payment pre-image and the local node to claim it after ...
6
votes
1answer
38 views

Why does getheaders P2P API return more than getblocks?

I've been reading through the Bitcoin P2P protocol documentation as well as experimenting with Bitcore library but confused about one thing. So getblocks seems to return inventory objects, which are ...
0
votes
1answer
40 views

Where can i download blockchain transaction ID

Tell me where I can download the Blockchain Transaction ID until 2013? That is, I want to take only part of the information about the blockchain from 2009 to 2013?
3
votes
1answer
144 views

What are the 3 arguments called in function SHA256?

void sha256(struct sha256 *sha, const void *p, size_t size) { struct sha256_ctx ctx; sha256_init(&ctx); sha256_update(&ctx, p, size); sha256_done(&ctx, sha); } I'm trying ...
-1
votes
0answers
32 views

How can I mine coins in bitcoin sv test node?

I have created a test node using Bitcoin SV but not be able to get coin from any faucet. Is there any way to mine coin in node?
2
votes
1answer
32 views

Bitcoin Core What default values should I pass for some positional RPC params in sendtoaddress

I am trying to use the sendtoaddress rpc method of bitcoin core. From the documentation I read that I can pass "estimate_mode" parameter to estimate a fee. However as I believe json rpc follows ...
3
votes
1answer
55 views

What is the rationale for inclusion of previous amount in SegWit signing process?

When spending a P2PKH output, the "data" we hash only includes the output script from previous transaction but when spending a P2WPKH (the new serialization) we also include the amount field from ...
0
votes
2answers
56 views

Why did repeated “R” values occur in Bitcoin transactions before?

Please explain why earlier the repeated values of "R" occurred in Bitcoin transactions. For example, this transaction has a repetition of the value "R": https://www.blockchain.com/btc/tx/...
0
votes
2answers
49 views

Bitcoin core How do I get the transaction fee while using sendtoaddress

I have a bitcoin core running on testnet, so for suppose I have a wallet balance of 1BTC and I have to send it to an addressx, so how can I know the amount of transaction fee so that I can subtract it ...
1
vote
1answer
43 views

How to handle multiple transactions from the same account(address)?

I am new to bitcoin so please bear my question. To understand the IN's and OUT's of this crypto world, i am creating a dummy bank to have a better understanding of the system. So I have a bitcoin ...
0
votes
1answer
29 views

Am I Being Prodded By A Bitcoin Mining Scammer?

I had someone approach me via an insta post, because i found his account and liked a photo. He said he was a bitcoin miner and forex trader in LA california, and asked if i was interested in earning ...
0
votes
2answers
31 views

Bitcoin transactions validation process

I have a general understanding of building blocks. But am hoping someone can fill in the details/gaps. Also, can you correct if something is not right? Thanks. Scenario: Bitcoin transactions are ...
0
votes
1answer
38 views

My Bitcoin transaction is lost

When I enter the deposit address of where I sent my bitcoin, the Blockchain says that the transaction is "Spent" What does this mean? It's been like this for 3-days now. Please help!

15 30 50 per page