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401  Bitcoin / Bitcoin Technical Support / Re: What is Node and or Masternodes??? on: February 01, 2018, 04:44:42 PM
I'm also curious about nodes and how to run one. This looks to me like a source of income if done right? Anyone interested in walking me through how to set one up for bitcoin and what I need to do step by step? In the meantime I'll be doing some research  Grin
There is no (financial) incentive to run a bitcoin node -- not directly anyway.
So you won't get paid for it, but nodes are important to the security and decentralisation of the network so you'll be "protecting" your bitcoin investment by running a node .
If you wish to run a bitcoin node, go to bitcoin.org, then download the software for your OS and Architecture, install it and let it run to sync the blockchain.
This will take a few days or hours depending on your CPU power and will also take ~150GB of space without pruning.
402  Alternate cryptocurrencies / Altcoin Discussion / Re: Where can I find the various Ethereum token contract solitidy source code on: February 01, 2018, 04:32:23 PM
Do you want sample codes or existing codes for various tokens?
If it's the former, check Consensys' GitHub page, they have a number of standard token examples.
If it's the latter then check the contract source tab on the etherscan page of the token's contract address.
P.S Not everyone will share the code to their smart contract, although for an ICO it is deemed as a mark of transparency if they do so.
403  Bitcoin / Electrum / Re: Electrum/Bitcoin Core Importing Keys on: January 31, 2018, 06:15:10 PM
Hello, stranger from the future.
How is Bitcoin Core 0.16?
404  Bitcoin / Development & Technical Discussion / Re: Bitcoin transactions processing on: January 31, 2018, 05:19:00 PM
The fees will always be on a % of the value a blockchain transaction and not a number as the % will then be divided to the miners.
That is NOT how bitcoin fees work.
Fees do NOT depend on the value of the Bitcoins being sent so they are NOT a "percentage of the value" but mostly on the inputs of the transaction.
It is entirely possible to have a transaction where the fees are greater than the amount being transacted.
405  Bitcoin / Development & Technical Discussion / Re: Is it possible to generate an already existing seed? on: January 30, 2018, 02:47:08 PM
As long as the probability isn't zero, then it's theoretically possible, but, like Ranochigo says, the probability of it occuring is so low that it's virtually impossible.
406  Bitcoin / Bitcoin Technical Support / Re: Ideas on transferring BTC? on: January 30, 2018, 05:49:57 AM
It's impossible.
As long as it's an on-chain transaction, you MUST pay miner fees.
The bitcoin protocol does not know -- or care -- that both addresses belong to you.

Fortunately, bitcoin transaction fees are very low right now and even 2 sat/byte transactions have been confirmed within a few blocks.
https://twitter.com/alansilbert/status/957949679156846593
407  Bitcoin / Hardware wallets / Re: How to send to multiple recipients from Ledger or Blockchain.info? on: January 29, 2018, 12:29:14 PM
Ledger doesn't have that functionality, and it appears blockchain.info removed that functionality.
You can do it on an Electrum wallet though.
I believe you can connect your Ledger to Electrum.
408  Bitcoin / Development & Technical Discussion / Re: Question: Hashgraph on: January 29, 2018, 07:32:12 AM
Tested hashgraph for 4 users. 40 transactions per second, given that they are empty. Pretty bad result. Until more like mysticism... imho
How exactly did you test it?
IIRC it's closed source and you need a licence from Swirlds to run it.
409  Alternate cryptocurrencies / Altcoin Discussion / Re: any sample code for ethereum based coin on mist wallet on: January 28, 2018, 05:32:17 PM
By "ethereum-based coin" I'll assume you mean tokens that run on the Ethereum blockchain i.e ERC20 or ERC71 tokens.
ConsenSys has free and open source standard smart contract code at  https://github.com/ConsenSys/Tokens.

The Ethereum website also has a tutorial on how to develop ERC20 tokens with a sample:
https://www.ethereum.org/token

Tip: Test any tokens you're deploying on the testnet with fake ETH before releasing to the mainnet.
410  Bitcoin / Bitcoin Technical Support / Re: Help, lost all my BTC trying to claim BCH on Coinomi on: January 28, 2018, 05:09:12 PM
BCH Coinomi receiving address
Code:
qqzzr38pzst360e2xj6mygpnfpma433xeyd6ghpkwy
Transaction ID for when I sweeped the BTC to this wallet.  13b6c107d07a0d862827491c502a2d4e97a6bcc8a66b6e9e98f480721256bbd1
The transaction above sweeped ~0.74 BCH to this BCH address
Code:
1NrA5oDakabNyJGCFHRSj9FDMKCLPqTCu
or
Code:
qqzzr38pzst360e2xj6mygpnfpma433xeyd6ghpkwy
in Bcash's new  Bech32 format.
https://www.blocktrail.com/BCC/tx/13b6c107d07a0d862827491c502a2d4e97a6bcc8a66b6e9e98f480721256bbd1

Quote
Transaction ID from when I sent from the BCH wallet to the BTC wallet I created on Coinomi. ee4d5232ea094c094a86db9e78074a791ee347785732d88fc04ad0bfe64f4ad5


The same address sent the ~0.712BCH it received to
Code:
197SyYj4ryno6pVQ4d1sW5e5yNACF5Ekgg
or
Code:
qpv0jt63v02pl98ysatx922wretqs5p09cj0p7
and 0.03BCH change was sent to
Code:
qqwg74kjvup4gcwk5sm5svethlq20gzvvgr9gj
ws5zdmgw

The question is what address did you send the 0.74BTC from Multibit to?
The bitcoin/bitcoin cash address you swept into Coinomi to claim your BCash is
Code:
13vgvuUmt5cU73Q8EHknHV3FznVx1t9zPG
and it still has a bitcoin balance of 0.748BTC
https://blockchain.info/address/13vgvuUmt5cU73Q8EHknHV3FznVx1t9zPG

It appears you were confused and thought that bitcoin and bitcoin cash are on the same blockchain and a transaction on one chain is reflected on the other.
However this is not true and the 0.748BCH you had as 0.748BTC was swept into Coinomi while the original 0.748BTC is still intact in the address (your Multibit classic wallet, according to you)

TL;DR: you swept Bitcoin Cash, not bitcoin into Coinomi therefore your bitcoin is still on the same address/private key it has been all along.
411  Bitcoin / Bitcoin Technical Support / Re: Help, lost all my BTC trying to claim BCH on Coinomi on: January 28, 2018, 04:12:37 PM
Paste the address you sent the 0.75 BTC to.
And the transaction ID of the second transaction you made from the BCH wallet on Coinomi
412  Bitcoin / Bitcoin Technical Support / Re: Help, lost all my BTC trying to claim BCH on Coinomi on: January 28, 2018, 03:56:47 PM
It seems you sent BTC to a BCH address?
Can you post the TX ID or wallet address so we can confirm.

If this was indeed the case, do not fret.
Just import the seed for that address into either another BTC wallet, or get the private key from Ian Coleman's BIP39 tool (run it offline) and sweep the funds.
413  Economy / Micro Earnings / Re: Need help on: January 28, 2018, 09:41:51 AM
Cryptobara appears to be a faucet for Bitcoin and Litecoin.
So you'll need a bitcoin or litecoin wallet.
For bitcoin you can use Electrum on Windows, or Samourai on mobile (Android), or Breadwallet on iOS.
For Litecoin you can use Electrum-ltc on Windows, Coinomi on mobile.

Note: Whenever you install your wallet you'll be given a set of words, write them down safely where they will never get lost and never show anybody.
If you lose those words then your bitcoin/Litecoin will be lost forever.
414  Bitcoin / Bitcoin Technical Support / Re: Storing Bitcoin - Please corect me if I'm wrong on: January 28, 2018, 09:27:17 AM
Hey,

From what I read, for small amounts desktop wallets like Electrum (I currently have Exodus - any thoughts?) are alright.
Exodus is not open source so it's not recommended.

Quote
Let's say I have an amount of BTC that I don't feel comfortable holding on an exchange.  I will leave a bit on Exodus (then I will look for a desktop that supports SegWit) but for long-term storage, I have those options:
Electrum supports native segwit already (Bech32), but since it's not widely accepted yet you can manually create a normal P2PWKH-P2SH address on Electrum.

Quote
1. Best option: Hardware Wallet - send a small amount, wipe clean, check if recovery works and then send the rest.
Yes, a hardware wallet is the best option.
You should try sending also, not just receiving.

Quote
2. Paper wallet: Use https://segwitaddress.org/ on a Linux booted from live CD or USB stick (offline) and write down or print (preferably on a dumb printer with no memory/internet connection). Then store somewhere safe.
This works.
Writing it down is recommended though; the term "paper wallet" is literal: you'll have to write it on a piece of paper.

Quote
3. Bitcoin Core Client on a dedicated computer used only for storing Crypto (with TOR for privacy?).
If you want to go the paranoid route then get 2 computers: one offline and airgapped for signing transactions and the other for broadcasting.

Quote
So my plan is to generate SegWit address using segwitaddress.org (offline, using Linux installed on USB stick) and send money there.
I think a hardware wallet is better as there are less steps involved so you'll have lower opportunities to make mistakes.

Quote
I have some questions:
- Can I send Bitcoins there multiple times without compromising security (I understand that privacy will be compromised anyway??)?
Yes, of course.
Privacy is compromised by reusing addresses because someone could tie that address to an identity.

Quote
- When I send from paper wallet I should use Sweep option to send all funds at once. Preferably to HD wallet that has been checked for recovery prior. Am I correct?
Exactly.
Sweep all funds.
Or you risk the change being sent to an address you don't control depending on the wallet.

Quote
- Any other tips or guides you can send me to so I can confirm that this is a good way of protecting my BTC?
Like I said earlier, a hardware wallet is better.
It does the functions of a paper wallet and there are smaller vectors of attack and lower probability something would go wrong as a result of human error.

Also whenever you write down your seed, try to import it to see if you wrote it down correctly.
There have been cases where people didn't write down the correct word or wrote it in the wrong order.

415  Bitcoin / Wallet software / Re: Mycelium or Electrum? Best bitcoin wallet on: January 28, 2018, 06:40:19 AM
Electrum has Segwit support (native segwit included), while Mycelium doesn't plan to, for the foreseeable future, so it's a no-brainer to go with Electrum if you want lower fees.
Of course if you do not want a PC or use a desktop wallet then you can go for Mycelium, or better still, a mobile wallet with Segwit support, like Samourai, Greenbits, GreenAddress, etc.
416  Bitcoin / Wallet software / Re: I'm accidentally sent my BTC to BCH address, please help on: January 27, 2018, 05:26:43 PM
I recently sent BTC from my Zebpay account to my Dekado.io websit wallet BCH (bitcoin cash) address 1AziDkHsVSv4uq1VQfVBNMRCq1VbzcBJ3n. this transaction show in blockchain " Unspent ". What should I do to recover the BTC? Please help me.
You'll have to contact the people at Dekado.io, they're the only ones that can help you.

 Grin  Funny joke.  150 million dollars gone.  "very upsetting"   Cheesy
Probably meant $15,000 worth of bitcoin.
417  Bitcoin / Wallet software / Re: sent a transaction from jaxx wallet and disappeared? on: January 27, 2018, 05:29:24 AM

But that transaction is not there?  That is the problem. I used this key (which they gave me) when I transferred the coins from Bittrex to Jaxx, but it never showed up in my transaction list.

Any other suggestions how I can get these coins from where ever they are stored.

Thanks for your help.
If the wallet gave you that address then it must have generated it from the seed phrase; that's how BIP39 works.

Import your seed phrase into another wallet and the coins should show up.
If it doesn't show up on the default derivation path then tweak it.
418  Bitcoin / Wallet software / Re: sent a transaction from jaxx wallet and disappeared? on: January 26, 2018, 06:53:47 PM
I recently sent just 3.00018933 BTC from Bitrexx to Jaxx on December 9, 2017. I have done this many time before, so I am not new to doing it and was very careful. Never had a problem in the past.

At first, the coins showed up in the wallet view, but they did not have a transaction showing. I reset cache which should have solved this, but it did not register the transaction and the coins vanished form the wallet view.

I checked blockchain.info the the coins successfully hashed. See below.

https://blockchain.info/address/1LvxEykLrKYBiBzG9bjGbW7PMjyVfC7DFe  

Any ideas how I can get these coins into my Jaxx wallet or transferred somewhere else. I just do nto want to lose them.

I have contacted Jaxx customer support and they responded right away and i sent them shots of my wallet (No private keys of course) and every thing. Once they got all this info, they just stopped communicating. I sent 10  more requests to begin communicating again and nothing. I then opened a second ticket and referenced the first and they responded right away...but once they got the info they needed, the stopped communicating.

They indicated in mid December that they were having problems and to be patient. I have been but now i think they know they goofed up and are trying to ignore it hoping i will go away. Not with over 3 BTC in the balance.

Can anyone help me figure out how to get these coins back using Jaxx or any other method?

Thanks...
You can get your seed phrase from Jaxx wallet, just import it into another wallet and you should see your coins there.
To view your seed if you didn't save it, go to Tools -> Backup Wallet -> View Backup Phrase
It'll show you your 12-word seed.

Or if you just want to see the private key of 1LvxEykLrKYBiBzG9bjGbW7PMjyVfC7DFe, then go to Tools -> Display Private Keys -> Display Bitcoin Private Keys.
Then search for the private key of 1LvxEykLrKYBiBzG9bjGbW7PMjyVfC7DFe and import it into another wallet like Mycelium, Samourai, Electrum, Coinomi, etc.

Make sure you use the correct derivation path.
419  Alternate cryptocurrencies / Altcoin Discussion / Re: Claiming bitcoin Cash from bitcoin core/Ladger Nano S on: January 26, 2018, 02:00:23 PM
Go into transactions. Right click and select Abandon Transaction for all post-fork transactions.

And then your BCC is right there.
Omershen, do the above.
It should work.
420  Economy / Digital goods / Re: Litecoin core .dat - FOR SALE on: January 26, 2018, 01:51:54 PM
yes, click the debug window and paste that code.
It will display the private key of that wallet address.
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