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121  Bitcoin / Electrum / Re: Electrum doesn't restore right wallet address on: April 23, 2018, 11:30:20 PM
How? can you share it with us if how did you import the private key from bitcoin  core segwit to electrum?
It's in my post that LoyceV quoted above:
In the field where you enter the private key, enter p2wpkh-p2sh: in front of the private key.
For example, do this:
Code:
p2wpkh-p2sh:5BlahBlah
Replace "5blahblah" with your private key.
It should import the correct address
PS
If it's a Bech32 address then just add p2wpkh: in front of the private key.
Eg p2wpkh:KPrivateKey
122  Bitcoin / Development & Technical Discussion / Re: Can coinbase transaction contains multiple destinations? on: April 23, 2018, 04:17:11 PM

There is no tx fee paid in coinbase transactions....
[/quote]
I guess he means transaction fees of transactions in the block as block reward.
123  Bitcoin / Bitcoin Technical Support / Re: script.bin on: April 23, 2018, 12:05:44 AM
.

What are you trying to do with the script?
The blockchair.com explorer does that by default.

@OP:
It tries to convert hash160 of bitcoin addresses to ASCII string for cases where people encode data in the blockchain by using "fake" bitcoin addresses.
For example if you view this 'fake' address 17xws5ASGc1dpKYB6jBRnRJGEKEQ4Xq7fy on Blockchair block explorer it will automatically convert the hash160 of the address 4c656e20776173206f757220667269656e642e20 to
Quote
Len was our friend

If it tries to decode that of a "real" bitcoin address then it will rightly output gibberish, as you can see in your address.
124  Bitcoin / Development & Technical Discussion / Re: How the genesis block triggered on: April 22, 2018, 09:18:35 PM
So does this mean Satoshi mined the Genesis block? Meaning, did he actually use computing power to mine the Block? Or was the genesis block instamined when the network went live?
It was mined, along with subsequent blocks.
There was no premine at all in bitcoin.
The difficulty was actually very low so it was very easy to mine.
125  Bitcoin / Development & Technical Discussion / Re: How i can change bitcoin qt icon ? from source code on: April 22, 2018, 09:04:01 AM
The code for the Bitcoin-Qt GUI can be found here

Icons can be found in the res folder.
126  Bitcoin / Bitcoin Technical Support / Re: running both bitcoin-abc and bitcoin core on the same machine on: April 21, 2018, 07:21:22 PM
Change the dadtadir and the port and you should be good to go, or better still, run the BCash node in a VM.
127  Bitcoin / Development & Technical Discussion / Re: Is LN a first step to Proof of Stake sidechains? on: April 21, 2018, 03:53:45 PM


My thinking is, "Proof of Stake" is just a name for a set of rules which allow exchange funds and prevent double spending without expensive mining involved an "Stake" is not necessarily the amount of funds.
No. In proof of stake blocks are forged by a set of validators who have a locked amount of funds at stake to incentivize good behaviour
Quote
So, from this point of view, LN is a rudimentary PoS system where double spending is controlled by all the participants
Not at all.
There are no blocks to be produced no transactions to be validated, no native  coins to be produced, there is no stake locked up to validate transactions.
The lightning network relegates double spending protection and all that to the blockchain
The only resemblance with a proof of stake system is the penalty for attempting to cheat the system by broadcasting a stale channel state.
Quote
, and it is sidechain because the data is handled "without broadcasting to the blockchain" https://en.wikipedia.org/wiki/Lightning_Network

Again false.
Sidechains are their own blockchains while the Lightning Network is not a blockchain but a "layer" on the bitcoin blockchain.
Infact you can deploy a lightning network on most blockchains that support HLTCs.

If you call any offchain payment mechanism a sidechain then that means you also consider exchanges as sidechains too.
128  Bitcoin / Development & Technical Discussion / Re: Is LN a first step to Proof of Stake sidechains? on: April 21, 2018, 02:12:31 PM
Please, tell us, how exactly does swapping signed commitment transactions across nodes constitute a proof of stake system or a sidechain?
129  Bitcoin / Development & Technical Discussion / Re: question on finding nonce on: April 21, 2018, 02:08:28 PM
The miner can simply change the order of the transactions or extra nonce to change the witness commitment and the merkle root.

Changing the order of transactions in a block that has a segwit transaction is actually hard, as the miner would have to recompute the witness transaction IDs stored in the Coinbase transaction
130  Bitcoin / Bitcoin Technical Support / Re: Opening encrypted wallet.dat file on: April 21, 2018, 10:35:24 AM
I do not seem to have any bitcoin map in my Roaming directory....
Hold the windows button and the R button
Then paste this
Code:
%APPDATA%\Bitcoin
then press enter.
It should open the bitcoin data directory
131  Bitcoin / Bitcoin Technical Support / Re: Opening encrypted wallet.dat file on: April 21, 2018, 10:07:23 AM
It's located in C:\Users\YourUserName\Appdata\Roaming\BitCoin (If you're using windows Vista and above
132  Bitcoin / Bitcoin Technical Support / Re: Opening encrypted wallet.dat file on: April 21, 2018, 10:02:15 AM
When you install bitcoin core it'll generate a new wallet.dat
Swap it with the encrypted one you have.
Then go to help -> debug -> console
Code:
walletpassphrase <passphrase> <timeout>

Eg
Code:
 walletpassphrase passphrase 600
133  Bitcoin / Bitcoin Technical Support / Re: confusion with bitcoin core wallet on: April 21, 2018, 09:50:09 AM

hello thank you for your answer i said electrum because i m familiar with thats all is there any other lightwallet that i can import my private key to without facing this problem ? all what i want is to move my btc without sync bitcoin core because in my country we have problem with internet speed so its imposible to me to sync bitcoin core
You can use Electrum.
In the field where you enter the private key, enter p2wpkh-p2sh: in front of the private key.
For example, do this:
Code:
p2wpkh-p2sh:5BlahBlah
Replace "5blahblah" with your private key.
It should import the correct address
134  Bitcoin / Development & Technical Discussion / Re: How the genesis block triggered on: April 21, 2018, 06:39:48 AM

So is it correct that even if nobody  do any transaction (for assumption) and miners are mining then they still find/create a block.
Exactly, yes

As long as the miner includes the Coinbase transaction (the one paying the block reward), the block is valid and can be published.
They are called "empty blocks"
An example is this one
135  Bitcoin / Development & Technical Discussion / Re: How the genesis block triggered on: April 21, 2018, 06:01:50 AM
Quote
Means even for mining that first block we should have a bitcoin and couple of address to do the transaction, so how this first bicoin come into existence.)
It doesn't work that way

For mining ANY block you don't need any bitcoins-- mining itself creates Bitcoins.

Also, addresses are just hashes of public keys. You can make as many as you want, you don't need to mine or to be connected to the internet or blockchain.

The only difference between the genesis block and any subsequently mined block is that the genesis block doesn't have a previous block header hash because well it was
136  Bitcoin / Development & Technical Discussion / Re: question on finding nonce on: April 20, 2018, 07:46:01 PM
What if it would be more efficient to make each miner to try to find nonces for different sets of transactions rather than finding nonces for the same set?
The nonce is iterated to find a block hash lower than the target.
Before you start trying nonces you must have a candidate block already (complete with transactions)
137  Bitcoin / Bitcoin Technical Support / Re: confusion with bitcoin core wallet on: April 20, 2018, 07:07:49 PM
the adress where i sent my btc start with 3 while the adress shown when i add my private key to electrum or blockchain.info start with 1.
thank you
Use Abdussamad's script to convert it to a format Electrum understands.
Code:
python3 electrum-convert-privkey.py <yourprivatekey> p2wpkh-p2sh | electrum -w wallet_file_path restore
138  Economy / Service Discussion / Re: Overview of Bitcointalk Signature-Ad Campaigns [Last update: 16-Apr-2018] on: April 20, 2018, 11:06:53 AM
Yahoo's signature campaign is open once again
Quote
, I am now accepting new enrollments. Mainly gonna be full member and above unless you are a member with exceptional quality
139  Bitcoin / Bitcoin Technical Support / Re: conflict between balance and transactions on: April 20, 2018, 10:05:25 AM
I did check the address and it says it's there. It says

transactions 2, total received 0.30500001 BTC
Final balance 0.30500001 BTC

Since you have the address, unlock your wallet and dump the private key for that address, then import it into another wallet eg Electrum.

Go to Help, then debug, then console.
Then type:
Code:
walletpassphrase "your walletpassphrase here" 600
Press enter then type
Code:
 dumpprivkey <address that has the balance>
You'll get an alphanumeric string starting with 5, K, or L.
Import that into Electrum to access your bitcoin.
140  Bitcoin / Development & Technical Discussion / Re: Hot wallet protection concept ("Loaded gun method") on: April 19, 2018, 09:21:06 AM
1.) There is no concept of "the" mempool; all full nodes have their own local mempool.
So it's possible that your bot won't even find the tx at all.

2.) It's not guaranteed to work at all.
How do you know a miner hasn't already assembled the first tx in a candidate block?
If he already has then he can't accept the new tx even though he sees it because it conflicts with one already in his candidate block.


There's no way for it to work.
The private key is what you should protect.
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