All Questions

0
votes
0answers
10 views

Apply SSL for RPC port -Ubuntu 18.04 VPS server

I start bitcoind 0.17 in a particular port on Ubuntu 18.04 VPS server. I want to give the SSL certificate for RPC port. I already know to generate self signed certificate using OpenSSL. But I don't ...
0
votes
0answers
10 views

Blockcjain Transaction transfert delay while ready confirmed in the blockchain [closed]

As you can see... I made a transaction of this specifique address from my blockchai. Wallet . But till now still now received this find while in the blockchain history the transaction is ready ...
1
vote
1answer
38 views

Listen for transaction on specific address

How can you listen for a transaction on a specific address? I'm working on building a lightning network watchtower and the first thing I need to do is detect when someone closes a channel.
4
votes
2answers
784 views

What is preventing me from simply constructing a hash that's lower than the current target?

I just started learning about Bitcoin, and something I can figure out is why miners have to use a random process (hashing a nonce) to get lower than the target. For example, if the target is ...
0
votes
0answers
9 views

Zcash mining missing block reward balance

I'm running my own zcash pool I have found a block, I'm using z/s nomp software. What happened in zec.json configuration file I did not put any address in reward recipients. z/s nomp zec.json pool ...
2
votes
2answers
51 views

Script Bitcoin represent number > 16

I'm studying Script language, but I don't understand How can I rappresent the number > 16, for instance 210 I want to do a simple sum OP_10 210 OP_ADD how I have to represent 210? I'm trying with ...
0
votes
0answers
12 views

How do I create a redundant 'live' wallet? enterprise level (no hosted solutions) [on hold]

I want to create a high availability wallet. I need data synced in the event of failure with failover capabilities. I know I could just cheat with rsync but everything about what I am asking for in ...
-3
votes
0answers
7 views

i am facing issue in max_money in blockchain code its old bitcoin (bitcoin v0.8) [closed]

i change the nTime ,nNonce,hashMerkleRoot,and hashGenesisBlock so my max_money supply showing 0 but its should show 1.5b. i also declared in code 1.5b .
0
votes
1answer
14 views

I have accidentally sent LTC coin(Using Bitcoin ATM) to my BTC wallet(Luno wallet). I have not received the coins yet

I have accidentally sent LTC coin(Using Bitcoin ATM) to my BTC wallet(Luno wallet). I have not received the coins yet. how can i recover it back to my luno BTC wallet.
6
votes
1answer
101 views

Why do lightning invoices expire?

I'm considering the development of a lightning app, and I'm trying to make it non custodial. I was thinking on pre-generating invoices for all users every x time to make things simpler. To do that I'...
0
votes
1answer
16 views

“Ether” vs. “bitcoin”: I wondered when I heard Ethereum does NOT have any crypto-currency (in a Blockchain workshop by speaker)!

In my opinion, Ethereum has a native coin (crypto-currency) called "Ether". On the other hand, Ethereum allows user to create crypto-token, such as ERC-20, using smart contracts. From my point of ...
0
votes
0answers
9 views

bitcoind localhost port 18332: Connection refused Ubuntu 18

Trying to connect to testnet using curl from localhost on ubuntu server. Tried lots of combinations of bitcoin.conf and ports. Here's my config: server=1 daemon=1 testnet=1 rpcuser=user rpcpassword=...
0
votes
1answer
17 views

I can't find my bitcoin address

i am using electrum. First, I had a bitcoin address and I used it once to receive BTCs and then it changed. but new address is invalid. i tired so many times. i checked all the options. but it was not ...
0
votes
1answer
27 views

Batching transactions to safe on fees

I have some bitcoin spread across multiple addresses. I would like to move these to different addresses. I've heard about batching and was wondering if it is possible to batch the transaction to ...
1
vote
1answer
21 views

bitcoind - how to find out what is affecting the verificationprogress

Problem Bitcoind verificationprogress continues to go up and down around .99999xxx and never finish verifying Background Looking for any insight here, had a node that went down and upon bringing it ...
0
votes
0answers
50 views

Are those three bitcoin mining app from google play store legit or fake? [closed]

There are three apps that look the same. They both allow you to upgrade the mining speed through buying their plan but only with the bitcoin you got from mining bitcoin so no need to buy plan with ...
0
votes
0answers
9 views

I sent 2.002 BTC using withdrawal tab in BITFOREX Exchange to Coinbase [duplicate]

I withdrew 2.002 BTC from my BITFOREX account to my BTC Coinbase account over a week ago and when I look up the Transaction Hash it shows it is an unconfirmed transaction with 82 inputs ans only 2 ...
0
votes
1answer
53 views

How to convert Script hash into opcodes, in Ruby?

I have a script and it looks like this: 76a914af7a4a30243f2301e6a14a4979ae099d52f560d488ac. How can I create an instance of class Bitcoin::Script from ruby-bitcoin? It has to be parsed, I believe, but ...
0
votes
0answers
8 views

Why is my worker disabled

When looking at my dashboard, it says my worker's state is disabled. I'm using an old S1 (which I know isn't profitable, just playing around) but it is hashing around 176 Gh/s per day.
0
votes
0answers
15 views

How to dump full data in leto/wack script for wallet.dat?

Recently I downloaded perl script from https://github.com/leto/wack And it successfully print default stats only.Showing that defaultkey 1,ckeys 201 and other. But I surely know that it may dump full ...
0
votes
1answer
17 views

What key is used to create a script?

I'm trying to sign an input in my transaction. The question is: which key has to be used in the "script," private or public? It would be silly to disclose a private key there, right? But how will the ...
0
votes
0answers
5 views

Is rippled release the rpc connect resource? The service is unavailable

I have deployed a ripple sync node, and monitor its' height and parse the latest closed ledger by rpc method ledger_closed and ledger. Usually I have lost my connection, because the rippled server ...
1
vote
0answers
17 views

Bitcoin Core client on multiple computers

I have one computer with a full node bitcoin core. I would like to have bitcoin-qt installed on a different computer but I don't want to download the full blockchain again in the other computer. I ...
0
votes
0answers
7 views

How to quit CGMiner 4.10.0

How do I quit CGMiner 4.10.0 the correct way so That I can see the payment screen ?
1
vote
1answer
14 views

What's the maximum size of the memo in a LN payment request?

What is the maximum size of text held in the memo portion of a lightning network payment request?
0
votes
0answers
23 views

Why does my new purchase sometimes show an immediate loss [closed]

Why when I buy on my bitcoin platform say 1000 euros worth of shares at a certain value does it sometimes immediately tell me that those shares are now -400 euros What am I doing wrong.
4
votes
1answer
25 views

Low-s value in bitcoin signature

What are the problems related in using the "normal" ( bigger than N/2) value of the s number in transaction signature and why we use the lower one? Is it about the math behind the ecdsa?
1
vote
1answer
27 views

How to convert P2PKH to Hash160 (or something else acceptable by Script)?

How to convert a bitcoin address (starts with 1) to the right format acceptable by script (I'm using this Ruby library)? I'm doing this: tx.output do |o| o.value(50000) o.script { |s| s.recipient(...
0
votes
0answers
25 views

Bitcore ZCash addresses conversion to t-address

I have an issue while creating simple zcash address: I am using the following network params: const bc = require("bitcore-lib") const zcashNetwork = { name: 'livenet', alias: 'mainnet', ... }; ...
0
votes
0answers
17 views

Bitcoin core wallet replication

I have a bitcoin core full node with a wallet on VPS. I use my own script to connect to the RPC. The script works on another VPS. Sometimes bitcoin VPS goes offline. Once the recovery took a long ...
1
vote
1answer
25 views

Failed CHECK(MULTI)SIG operation - BIP143 hash pre-image

Using Blockstream's api to broadcast a raw transaction to the Bitcoin testnet, I encountered the following error: sendrawtransaction RPC error: {"code":-26,"message":"non-mandatory-script-verify-flag ...
0
votes
0answers
13 views

What happen When use -maxtxfee and -mintxfee with bitcoind

I read some document about -mintxfee and -maxtxfee. I apply this to my regtest network using the following command ./bitcoind -txconfirmtarget=6 -maxtxfee=0.00005 -mintxfee=0.00005 My question is ...
2
votes
1answer
129 views

Bitcoin scripts that force disclosure of the private key

Context: I am creating an example code that would demonstrate an atomic swap between Elements and Bitcoin, with the aim that the swap transactions cannot be trivially linked, as it would be with ...
1
vote
1answer
28 views

How miner makes sure that a transaction he picked up from mempool is actually valid? [duplicate]

I have read and searched enough about the roles and responsibilities of miners here; For example: Does the miner first validate transaction before doing POW or he does not validate at all ? Does a ...
3
votes
1answer
48 views

Could a transaction hex on testnet theoretically be valid on mainnet?

For all practical intents and purposes it seems a testnet tx hex could never be valid on mainnet because of the prev tx hex present for all inputs used in the tx. However, let's say that by some ...
0
votes
0answers
19 views

how to find my btc address and private key using bip32 rootkey

I have one query Using my bip32 rootkey I can see all address I've 250$ into my wallet but when i important the address from my rootkey it's showing only address which i received payment of last 150$...
0
votes
2answers
35 views

Can Large Bitcoin Collider break into the wallet which is created by new version of Electrum?

I have heard that Large Bitcoin Collider can only break into wallets that are created by broken software. My other question is that it seems the last private key that they found was on 2017-11-15 01:...
-1
votes
0answers
16 views

Where can I find bitcoin miners or sellers for an over-the-counter block trade? [on hold]

More broadly, any insight about where bitcoin miners or sellers congregate offline?
0
votes
1answer
16 views

Does the `HTLC fail` routed back to sender using same path if intermediate node does not have enough capacity?

In the Lightning Network, the intermediate hop between the sender and receiver checks for possible errors(like if it has enough balance). And if there is, it sends an HTLCFail message back to the ...
1
vote
1answer
20 views

How can “Lightning Loop Out” help me to receive more payments?

In his blogpost, Alex Bosworth describes that “emptying of the channel allows them to receive more payment” (https://blog.lightning.engineering/posts/2019/03/20/loop.html). But how can I allow more ...
0
votes
1answer
29 views

How can i verify my txs with my own full node?

Hey i run a full bitcoin+lightning node on a rpi. Can anyone eli5 me how can i verify my own tx if send some coins from an exchange to a public address i control? Lets say i plug in my hw, send some ...
0
votes
1answer
33 views

Automatically close the bitcoin-qt when enable SSL for RPC

I Just try to enable SSL for bitcoin-qt RPC call. I follow the SSL on RPC link to archive my target. But I am getting the following error and close the bitcoin-qt automatically. I am using the ...
0
votes
1answer
13 views

When miner insert coinbase?

when miner create the candidate block with transactions of mempool, insert the coinbase after 'win' PoW or during PoW?
0
votes
2answers
41 views

History of transactions in Lighting Network

I'm just a beginner in lighting network. Have some questions about transactions in LN when im doing the research Transactions in LN are off-chain, so transactions couldn't be stored in main-chain, so ...
0
votes
1answer
24 views

How does the Blockchain detect a cheater, who manipulates the blockchain?

Let's assume we have 100 blocks. One miner x has the intention to manipulate block 90. So he has to recalculate the hash for block 90. Following he also has to recalculate the hashes for block 91-100. ...
2
votes
0answers
14 views

Script and DER in P2PKH

Im trying to figure out the script and DER In P2PKH, the "first part (scriptsig)" push in stack (<sig><pubK>) because is it DER? Instead the "second part (scriptPubKey)" you can map the ...
0
votes
0answers
14 views

How to decrease target difficulty in bitcoin source (v0.8)

I have followed this video series ( https://www.youtube.com/watch?v=mDGxGYvkDEE ) to create an alt-coin by forking Litecoin v0.8, which i followed the videos and successfully created an altcoin. Now ...
0
votes
2answers
41 views

Mining Difficulty and Leading Zeros

I understand that the Bitcoin mining problem is to find a string s (hash of previous block + Merkle Tree Hash + nonce) such that sha256(s) has n leading zeros, where n determines the mining difficulty....
0
votes
0answers
10 views

HOW DO I GET CGMINER TO SHOW ME THE PAYOUT?

I have my CGminer on and showing the “Accepted Shares” How do I quit CGminer so that I can see my payout ? I have been told that I should press control + Q then press the Q button and then it will ...
3
votes
2answers
454 views

Is there a minimum number of transactions in a block?

What encourages Bitcoin miners to include lots of transactions in blocks in the Bitcoin blockchain? It seems like you could quickly add a block with just a single transaction and get the block reward ...

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