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Can I transfer BTC from BTC (address) wallet to a Lightning (address) wallet?

I would like to know if I can send BTC from a BTC address to a Lightning Network address. I have BTC on an exchange and I would like to move them from the exchange to my Muun wallet. Muun allows on-...
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0 answers
5 views

How to get nft details from transaction hash?

I'm trying to get user's recent transactions and with that transaction hash I want to get the nft details (whether he has bought or sold). For this I tried nftport's api and from there I'm getting the ...
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1 answer
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Can I make a keysend/amp payment having an invoice?

I am trying out sending/receiving payments between BlueWallet, Muun wallets and my locally running lnd node. I managed to successfully pay an invoice generated by BlueWallet or Muun from lnd node on ...
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2 votes
2 answers
158 views

There are a lot of 100 input transactions in some blocks, what's the reason?

In block 736302, we can see a lot of 100 input transactions. And this can be seen also in 736567, 736299 and so on. Is this only a coincidence?
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I was sent money through vantagevend and ive been paying fees to withdrawal am i being scammed [duplicate]

I received 4000 in btc from boyfriend out of country. I paid 500 for a plan in vantagevend to withdrawal. As I'm withdrawing the 4k I'm told 20,000 come in also and had to buy bigger plan 1400 I ...
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0 votes
1 answer
23 views

How do transactions get into the mempool?

I was tracking a transaction using a Bitcoin Core command. I was able to extract info on whether the transaction had entered the mempool. Among the information I got were details such as "the ...
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1 answer
13 views

Will remote RPC under http expose the rpcusername and rpcpassword?

I'm confused with the examples of contacting bitcoin-cli as the examples always show sending user name:pass to http does this expose the name:pass? This command: (I modified the help example from ...
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1 vote
1 answer
26 views

Why is the Generator Point G for secp256k1 curve typically indicated in (y,-x) quadrant?

Generator Point G for the secp256k1 curve is typically indicated below where the curve intersects the y-axis. At x=0, y=sqrt(7) and -sqrt(7), which are both small numbers less than 3, but G is an ...
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1 answer
33 views

How can I create/provide crypto currency wallets to my users?

I am interested to know, if I want to make a facility to my website users to be able to pay/buy with crypto currencies, also to gain ability to send/receive crypto currencies together( something like ...
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What is the usage of "token" that an exchange provides to it's users? [closed]

I noticed that in exchange platforms like Binance there is an Option to create a token. I am interested to know what is that and what are the usages?
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1 answer
159 views

Can I use the Bitcoin Core CLI to learn the block height at which a transaction was mined?

I am interested in figuring out at what height a transaction was mined, but I cannot find the right command to extract this information. Perhaps it's not possible? My Bitcoin Core was not involved as ...
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Which offers more privacy, coinjoin-whirlpool or non-KYC online exchanges?

After buying crypto with fiat on a KYC exchange, instead of just moving the crypto to a wallet, I understand that I should get more anonymity from tracking by putting the coin through coinjoin or ...
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1 answer
32 views

How do crypto exchanges create wallet for their customers?

I am new in Cryptos. I noticed that when I want to trade in an exchange it needs to create a wallet on their website. It seems this is the wallet they create for a user like what he/she can create him/...
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Is there a consensus as to what is meant by 'Nakamoto Consensus'?

I sometimes hear that bitcoin's key innovation was the Nakamoto Consensus, which solves the double-spend problem without the need for trusted third-party intermediaries. I take Nakamoto Consensus to ...
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0 answers
17 views

Bitcoin core fails to load

I have just loaded the Windows version of Bitcoin Core (v22). But it fails to sync with the network. At around 6 days and 5 hours I see the following: Please note that despite 30 years IT experience, ...
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0 answers
11 views

What is maxsigcachesize?

-maxsigcachesize= Limit sum of signature cache and script execution cache sizes to What is this? What is a sigcache? What happens if it is set low and Can it have a bad effect?
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19 views

What would make a blockchain lag 50-100 blocks behind?

Related: https://bitcoin.stackexchange.com/a/50743/14316 I am following the advice in the accepted answer to the question above. I am running a collection of coins next to each other on a server. I ...
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-1 votes
0 answers
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what kind of wallet i have to use for my cryptocurrency exchange

I'm Programming a Cryptocurrency Exchange ... The Problem Is I got API From https://binance.com But I Don't Know How Generate My Wallet ... Must I Use https://binance.com Wallet Or Can I Use Hard ...
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1 vote
1 answer
45 views

Is it feasible to calculate EC private key k from public key K for very low values of k?

If an EC private key k is very small, say "1", is it feasible to calculate the private key k from its public key K, since there would only be one step back to generator point G and therefore ...
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0 answers
19 views

Is it legal in the US to incorporate in a different state to trade cryptocurrencies?

I know this isn't specific to Bitcoin but I thought this community would know best. I live in New York where there are stringent rules about crypto trading. I did a survey of 44 exchanges last weekend ...
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0 answers
22 views

most updated software in the block chain

Which one is the most updated Bitcoin client I can download from a block chain. Doesn't have to be the mainnet chain, it can be as payload of the testnet or signet chains.
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0 votes
1 answer
31 views

Is it correct to refer to hashes found through proof of work as "proof of work numbers"?

I've seen come commentators refer to 'proof of work numbers'. I suppose these are the hashes found through proof of work, but not entirely sure. EDIT** Regarding where I got the 'proof of work numbers'...
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0 votes
1 answer
37 views

What stage of the bitcoin protocol deals (or 'solves') the double-spend problem?

I understand that a key innovation in bitcoin is that it solves a key problem faced by previous attempts at a digital currency: the double-spend problem. In addition, I also understand that the ...
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0 answers
7 views

How can I get an unconfirmed transaction confirmed? [duplicate]

I made a transaction and it's been sitting there unconfirmed for 2 days. How do I cancell and resubmit?
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1 vote
1 answer
32 views

How Does A Node Get Infomation From The TxID - that is, isn't the TxID the SHA^2(256) of various transaction components?

If I'm right, SegWit TxIDs are composed of the SHA^2(256) hash of the Non-SegWit data of a transaction. But, how does another Node use the TxID to obtain infomation about the transaction such as the ...
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0 answers
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Create transaction without importing wallet using python bitcoinlib

I am trying to find a way to send bitcoins from one address to another, having only private key, without importing any wallets, just simply get txins, create a transaction and send it to some address. ...
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  • 101
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0 answers
18 views

Transactions with invalid or non-parseable Script

During parsing of Bitcoin data from blockchain, I found many transactions which has invalid script (example 37b828de0da38f0b3b9ec09f6f8b7883c3202a99a285b0b0087f19f9cbf526d9,...
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1 vote
0 answers
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What is the reason for unusual stuck bitcoin transaction?

I have my bitcoin wallet and there is the following situation: There is a strange transaction with 200+ inputs to the wallet A which I don't know (with low amount and very low fee). These ...
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1 vote
1 answer
27 views

How to build a simple Bitcoin Wallet

I am looking for a way to build a Bitcoin wallet native mobile application for iOS & Android. I want the app to offer the following features to its users; Create a new wallet (self custodial) ...
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0 votes
1 answer
48 views

What Are The Parts Of A Bitcoin Transaction In SegWit Format?

I know that pre-segwit transactions looked like the following (This is the hash of the transaction in block 170 - the 10000 bitcoin pizza exchange): ...
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-1 votes
1 answer
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Hashage invalide

Après une demande de retrait de btc sur mon adresse de portefeuille L adresse de hashage n'est pas valide. Je n'ai pas reçu les btc. Que se passe t' il quand le hash n'est pas valide? Google ...
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1 vote
1 answer
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How does the block searching by txid works?

Is that the process will go through all the blocks and find the block which contains the txid or there's an index table for all transactions?
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0 votes
1 answer
34 views

Imported Address

I had some btc in a hardware and I transferred to my new blockchain account. But now it shows in a imported address. Do I have access from my blockchain? Can I sell, exchange … or watch only?
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2 votes
1 answer
20 views

What happens if channel opening transactions get stuck?

What happens with a pending channel opening, if the transaction is not being confirmed for an extended period of time because of insufficient on-chain fees? Or even worse, if the transaction drops out ...
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0 votes
1 answer
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Was the "sideloaded" data verified by bitcoind during the value overflow bug?

As a response to the overflow bug 2010, Satoshi wrote this post asking people to download the blockchain (blk****.dat and blkindex.dat) from a specific user. Patch is uploaded to SVN rev 132! For now,...
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0 votes
1 answer
19 views

Command lnd not found even after installing lnd

I tried installing lnd using the commands shown in the installation guide. I used these commands: git clone https://github.com/lightningnetwork/lnd cd lnd make install but when I try running the lnd ...
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-2 votes
0 answers
33 views

Why can’t I place limit sell order [closed]

LUNAUSDT is going mental at the time of this writing. I figured to take advantage of that so I bought 50 usdt worth of LUNA with a market order. After that I wanted to place a sell limit order for 100%...
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-2 votes
1 answer
44 views

How long does it take to get bitcoin trough Twitter

My friend @JayeCane , that's his Twitter nickname also, sent me BTC through Twitter at my address : bc1qhl8ajxff5z4zmmsshsnz98m3x7r2lupsuvfjeq before 4 day's ago. I have to wait or something went ...
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3 votes
0 answers
19 views

Problems with multiple wallets on RPC in bitcoin-core

I have been playing around a bit with Bitcoin Core (version 23.0), more specifically connecting to different wallets in Bitcoin Core through RPC in Python. I have found this library and tried to ...
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1 vote
0 answers
29 views

WitnessPubKeyHash to address

I'm trying to derive address from pubkeyhash in GoLang. Current i'm getting invalid address Current i'm getting SegWit address but mine chain doesn't support Segwit. addr, err := btcutil....
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0 votes
0 answers
16 views

Spending an unconfirmed RBF transaction

What happens if a wallet spends an unconfirmed Opt-In Replace-by-fee (BIP125) transaction, but does not flag this spending transaction as Opt-In Replace-by-fee? Receiving wallets would see that ...
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-1 votes
0 answers
16 views

Lost my transaction I sent from tether

I sent tether form my Blockchain to Erc 20 usdt wallet but I have not received it yet for over 20 hours
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1 vote
0 answers
17 views

How to generate a lightning invoice of any type offline

Is it possible to generate a lightning network invoice without the encumbrance of a full lightning node (lightning node defined as: fully synced channel graph, knowledge of channel outpoints, and ...
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0 votes
1 answer
32 views

blocknotify ignores > /dev/null 2>&1 and fills up my debug log

I have this code in my bitcoin.conf blocknotify=/root/.nvm/versions/node/v11.15.0/bin/node /home/BTC/block.js %s > /dev/null 2>&1 I see the error runCommand error: system(/root/.nvm/versions/...
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2 votes
1 answer
60 views

Do any exchanges allow you to examine the bitcoin before you buy it?

It has been reported that some centralised exchanges will deny deposits of cryptocurrency that come from tumblers/mixers, for reasons perhaps related to ownership of the coins. If one was concerned ...
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0 votes
0 answers
48 views

What are currently (May 2022) the biggest pain points of the Lightning Network?

I am wondering what are currently the biggest roadblocks and challenges (maybe also in Bitcoin) that we need to overcome in the Lightning Network protocol. Why are they challenging and why is it so ...
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1 vote
1 answer
60 views

Dust threshold for Testnet

I want to find a dust threshold following this answer: https://bitcoin.stackexchange.com/a/86069/134293 Actually I have a list of transactions coming from listsinceblock in which there are Testnet ...
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0 votes
1 answer
17 views

Same blockhash that appears more times in a bitcoind’s rpc call listsinceblock transaction returned json

Let's suppose that listsinceblocks return a json like this: { "transactions": [ { "involvesWatchonly": true, "account": "", "...
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1 vote
1 answer
23 views

Consider only deposits in a bitcoind’s RPC call listsinceblock transaction returned JSON

I have a JSON result of a bitcoind’s RPC call listsinceblock. There are 4 categories of transaction: "send" means transactions sent "receive" means non-coinbase transactions ...
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1 vote
1 answer
23 views

What does setting the "-server" flag do?

I'm running the GUI version of Bitcoin Core. But I want to also be able to interact with bitcoin-cli in my windows console. Apparently I need to set the -server flag before running bitcoin-qt, or set &...
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