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7681  Bitcoin / Bitcoin Technical Support / Re: Why does bitcoin difficulty have to go up every 2 weeks? on: November 09, 2017, 10:57:16 AM
It doesn't... The difficulty "adjustment" can go both ways... that is to say, it can actually go up OR it can go down.

The reason for this is to keep the "average" block time to 10 minutes. If more hashing power is brought online (ie. more miners), then chances are blocks will be found quicker and the average block time drops below 10 minutes... to counter this, the difficulty is increased.

However, if a chunk of the hashing power disappears (ie. some miners suddenly shift their hashing power to another chain because it is more profitable), then the average block time is likely to rise above 10 minutes... to counter this, the difficulty will be decreased.

It works on 14 day cycles because #reasons... I think 14 days was done as a "happy medium" whereby we can avoid miners trying to "game" the difficulty by taking hash power offline to lower the difficulty and then putting it all back online again so they can miner blocks faster and get more rewards etc... to do this on a 14 day cycle, miners would have to take their hash power offline for too long of a time to get the difficulty to drop... but 14 days is not tooo long to wait if the difficulty really is too high and needs to be lowered to get the block time back towards 10 minutes.

7682  Bitcoin / Bitcoin Technical Support / Re: Transaction Unconfirmed on: November 09, 2017, 10:45:14 AM
9eb29d31e1349ef64658a6142f93bbd279175ea03e6ca2c060aba951fc779bac
Well that was a non-event... your transaction now has 58 confirmations... I'm guessing some nice soul accelerated it for you, given that AntPool included it in a block... and the mempool has been pretty full all day.

Anyway, I'd suggest you click the "Lock Thread" link at the bottom left of the page, just above the "Quick Reply" section to avoid a whole stream of "you used low fee", "use an accelerator", "why you use low fee?", "check bitcoinfees.earn.com for recommended fees" type replies Tongue
7683  Economy / Gambling discussion / Re: Seuntjie' Dice bot programmers mode discussion. on: November 09, 2017, 10:20:39 AM
You could probably set up an "array" and a counter to keep track of the last "x" bets... but the number would need to be kept to a "reasonable" level to prevent the memory usage getting too high and or the bot starting to slow down while it manipulates the array...

I'm not sure I understand what it is that you are wanting to do with these 10 results tho? Huh

Code:
...
betArray = {}
counter = 1 -- NOTE: LUA arrays indexed from 1 ;)
...
function dobet()
...
  betArray[counter] = lastbet.Roll
  counter = counter + 1
  ...
  if counter == 11 then
    -- do something based on the last 10 rolls ???
    -- count them up or something and then set chance according to results?
    counter = 1 -- reset counter
  end
...
end
7684  Bitcoin / Bitcoin Technical Support / Re: A few questions because I don't understand how BTC works it doesn't make any s. on: November 09, 2017, 03:57:56 AM
It would appear that you are attempting to go about things the wrong way. The "12 word seed mnemonic" system is really designed as a "backup" method to regenerate your wallet should your computer explode or hard disk get wiped etc... you should NOT be entering this every time you are wanting to use your wallet.

Based on your original premise:
Hello,
My goal is to store a few thousands $ worth of BTC as safely as possible as an investment in Bitcoins.
I read the best way is to store them on a USB key, or even better, on a specific device called the Ledger Nano S (less expensive option it seems?).
It would seem that somewhere along the line, you've got a bit confused about software wallets, hardware wallets, wallet files, private keys and seeds.

In my opinion, your best options for long term storage are probably:

1. A "paper wallet":

This is literally a piece of paper with the Address/Public Key (in plaintext) and the Private key (possibly encrypted with a password) written/printed on it. You can then give then send bitcoins to the Address, and use a blockchain explorer to view the balance etc. Should you later need to spend the coins, you import or sweep the (decrypted) private key into a software wallet and spend the coins as required (possibly sending whatever the leftover balance is back into a new Paper wallet address)

To enhance security of paper wallets, they should be generated "offline" using methods like rolling dice, or a paper wallet generator on an offline PC using a 'secure' operating system with a Live CD/USB that has not persistent storage or is securely wiped afterwards etc.

The great benefit of a paper wallet, is that it can't be hacked by some guy sitting at a computer thousands of miles away... you can't connect to a piece of paper over the internet! Wink

However, you would need to make sure that this piece of paper is stored securely... taking appropriate precautions against theft (put it in a safe?), fire (fireproof safe?), water (lamination?) etc.


2. A "Hardware wallet":

These are usually a small device containing some specific hardware that store and protect your "Seed" and/or generated private keys. Two of the most common/popular hardware wallets are USB based devices like the Ledger Nano S and Trezor.

The theory is that Hardware wallets never expose your seed/private keys to the outside world. They are locked away, encrypted inside the device on special chips or data storage areas... so even when you connect it to your computer/phone, nothing can read the seed/private keys. Instead, what happens is that when you attempt to spend your coins from the associated wallet application, an "unsigned" transaction is sent to the hardware wallet device... the device will then prompt the user for confirmation that they do indeed want to complete this transaction (this is why the devices with displays are popular, as you can see the address and amount that your coins are being sent to, to help prevent being tricked by malware). If the user confirms that the transaction is "OK", the hardware wallet will internally "sign" the transaction... making it valid, and then send just this "signed" transaction back to the wallet application, ready to be broadcast to the Bitcoin network. No "secret" data ever leaves the hardware wallet.

Hardware wallets, generally provide a 24 word seed mnemonic as the backup method. This seed is generated randomly and then displayed during device setup/initialisation and is usually NEVER displayed again. The idea is the user writes these 24 word mnemonic down on a piece of paper and stores it securely like a paper wallet. As explained previously, you can regenerate your entire wallet from that seed should your device get lost.

The advantage of the hardware wallet over paper wallet, is that it is a lot easier to spend from a hardware wallet without compromising the seed/private keys.


3. An "offline" software wallet:

Basically, you require two computers. One is used completely "offline". One is used "online".

The "offline" computer, should have NO network connection of any description and is NEVER, EVER connected to any network. You install a software wallet on it... As Danny mentioned, depending on the software wallet chosen, it will either generate a wallet file that needs to be securely backed up (ie. Bitcoin Core) or it will give a seed mnemonic and/or private keys (ie. Electrum). Again, in the case of the wallet giving you a seed mnemonic, like the hardware wallet, this should be written down and stored securely. However, unlike hardware wallets, you can usually get a software wallet to display the seed and/or private keys "at will".

On the "online" computer, you generate a special copy of your wallet from the "offline" machine known as a "watching only" wallet. This has all your addresses/public keys... but contains NO seed and/or private key... so even if someone steals the wallet file, they cannot spend your coins as they do not have the private keys needed to sign transactions. They will however be able to see all your transaction history, coin balances and addresses etc.

To spend coins, you create an "unsigned" transaction on the "online" wallet... then copy that onto a usb stick, transfer it to the "offline" computer... load the transaction into your "offline" wallet, sign it using the private keys creating a "signed" transaction, which you copy back onto the usb stick and transfer to the "online" computer ready for broadcasting to the network.

This might seem VERY similar to the hardware wallet system... and it is essentially the same process, just a bit more complicated and time consuming, not to mention requires a 2nd computer that you don't use for anything other than storing your wallet. Essentially, Hardware wallets have pretty much made the "offline"+"online" wallet system obsolete, but it still does work.


As for which wallet you should use, I think Danny sums it up nicely:
Each wallet comes with its own features and it's own vulnerabilities. You should take the time to understand the wallet that you choose, and then make sure that you secure it so that:
1. You do not lose access to the important information for that wallet.
2. You do not leak the important information to anybody else.
So, before storing a substantial amount of BTC into any wallet... I'd suggest you take the time to "experiment" with various wallets using small amounts of BTC until you're familiar with the wallets, how they work, how you secure them and how you can safely spend from them.

A small investment of time and a few dollars now, might save you thousands later!  Wink
7685  Economy / Scam Accusations / Re: nitrogen sports WHAT DO YOU THINK on: November 09, 2017, 12:06:15 AM
I was playing blackjack and sports betting they cancled my withdrawl because they said it was a new ip it was not an 5 mins before they approved my other 3 1 btc withdrawls i made at same time lol and theni bet it byaccident  nt a single bet that was auto blackjack for dealer 1btc done in 3secs because they made up bs
lol its a scam because i did not place the bet lol
i did not hit deal
i had lost the balance and was leaving and it played a hand
So, now you claim you didn't accidentally place the bet? But that the system auto-played and that caused you to lose BTC... That is a substantially difference claim to your original post... So, which story is true? Huh



Quote
they whole time i talked to them they could not keep there story straight they made many lies up
sounds like a common theme in this thread... Roll Eyes



lol its so obvous nitrogen is using shill accounts
but first if any one says its simple as i placed a bet there either a shill , sig troll, or stupid
lol it was a scam nitrogen is trying to use shill accounts to block out the truth
I want to see what people think about this thing nitrogen did.
If you didn't want my honest opinion... and wanted me to just get out my pitchfork and torch so I could join the "ZOMG NITROGEN SPORTS Is teH SCAMMERZZZ!!!" vigilante brigade... you probably shouldn't have asked "what do people think?"...

You still haven't provided proof of the previous withdrawals made "seconds" earlier than the one you claim got blocked... that should be a simple screenshot seeing as how their system shows the time stamps in the transaction history. You have shown 1 screenshot that shows 1 withdrawal that got cancelled... I'm not sure that proves anything other than you had a single withdrawal for 1 BTC that was cancelled. Huh

"Stupid" is expecting people to simply believe whatever claim you are making without some solid evidence. If you can provide some, that would go a long way to supporting your claim...
7686  Bitcoin / Electrum / Re: Electrum 3.0 is out ! on: November 08, 2017, 09:20:31 PM
Why wouldn't you update it?
Because the newer versions don't play nicely with some older versions of Windows that are likely to be on "an old pc". Tongue

Honestly, if the old version is working fine... and it is purely for offline long term storage... then you probably don't need to worry about updating. It is only likely to be an issue when you decide you want to spend. There have been issues in the past with older versions not being able to sync properly. You may find that in the future, when you want to spend, you'll need to update to a newer version.
7687  Bitcoin / Development & Technical Discussion / Re: Generous donation for whoever can solve my wallet problem on: November 08, 2017, 09:15:35 PM
It sounds like you have had a previous install of Electrum then...

Although, the only way you could have created the 2of2 was by going through the process and adding in the private keys... the trick will be to figure out which private keys you used to create it... unless you can figure that out, you chances of being able to sign a transaction to get the coins out of the 2of2 is pretty much zero Sad
7688  Economy / Scam Accusations / Re: nitrogen sports WHAT DO YOU THINK on: November 08, 2017, 09:10:52 PM
lol no i did not put it 1 btc i had placed the bet earlier and it did a second bet because they cancled the withdrawl
It did a 2nd bet? or you clicked "deal"? As far as I'm aware, there is no "auto deal" feature on their Blackjack game.


Quote
so yes in every thought they caused the bet and very much is 95% there fault
What caused the bet was you clicking "deal". If you did not click "deal", this wouldn't be an issue... you'd have raised a ticket and said "hey, why did my withdrawal get cancelled? I want my 1 BTC"... they'd go "oops, our mistake, please put through another withdrawal request" and you'd get your 1 BTC.


Quote
i am pretty sure your a shill
No, I was just a curious third party that wandered into a thread asking "what do you think"?... I happen to think that you're just pissed because you lost $7K worth of BTC by being careless... I've done similar things (for a lot less money) and been pretty upset about it, for $7K I'd be super pissed... but at the end of the day, you clicked the "deal" button. There is no "auto play" feature in Nitrogen's Blackjack game...

They didn't steal your BTC... your withdrawal got blocked, granted for something that you claim to be incorrect (although you still haven't provided any proof of the timing of previous withdrawals) and then you gambled it away.

I really don't see how this is a "scam"... it's more of an unfortunate series of events.
7689  Bitcoin / Bitcoin Wallet for Android / Re: I just downloaded a bitcoin android mobile wallet. Where is my private key? on: November 08, 2017, 08:49:43 PM
lol. this is unbelievable. Why does this have to be so complicated? Is there an android wallet that I can use where i can just be given my private key instead og having to hire a computer programmer to extract it for me?
Can I ask why you even need your private key? Is having a "12 word seed mnemonic" that you can write down on a piece of paper and store securely not enough for backup purposes?

Is there some specific reason you must have a private key?
7690  Economy / Scam Accusations / Re: nitrogen sports WHAT DO YOU THINK on: November 08, 2017, 08:19:48 PM
You didn't answer my question... did you enter a wager of 1 BTC and then click on the "deal" button?

If so, then the fault is yours. Just because your withdrawal had not been processed, does NOT relieve you of any responsibility for your own actions when placing wagers. Yes it's a lot of money (I'd be pissed off as well), yes it's annoying that for whatever reason (software issue, human error) your withdrawal was cancelled, yes the reason they give for cancellation of the withdrawal seems "weird" (assuming your claims about the other withdrawals are correct)... But none of that really changes the fact that you entered a wager and clicked deal... accident or not.

Can you show proof of these 3 withdrawals "seconds" before? I've seen a screenshot of one cancelled withdrawal... It's highly likely that, assuming these other withdrawals exist, the fact that there were so many so close together may have triggered some "anti hacking" type feature that automatically blocked your last withdrawal and the "ever so helpful" customer support people just gave their "standard" response for automated blocking of withdrawals due to "suspicious behaviour/account hacking" etc.


lol oh not its not nitrogens fault at all its not like they block a legit withdrawl
"Blocking" a legit withdrawal did NOT force you to wager 1 BTC on a single hand of blackjack did it?


Quote
its makes no sense at all on top of that i lost it in one bet you caused to happen as i was playing blacjack and should not have had another 1btc and then the bet was placed byaccdient as there should not have been funds
Nitrogen forced you to enter 1 BTC and click "Deal"?
7691  Bitcoin / Bitcoin Technical Support / Re: Question concerning PKeys of Bitcoins on: November 08, 2017, 08:02:20 PM
You realise that Electron Cash (https://electroncash.org/) and Bitcoin ABC (https://www.bitcoinabc.org/) and others (https://www.bitcoincash.org/#wallets) both support BCH and you can import your pre-Aug 1st private keys now to get BCH right?

currently there are NO BTG wallets where you can claim coins... because there is still NO BTG network... they just reset TestNet today to continue testing...

But, theoretically speaking, if you use one of those "multi-currency" wallets that everyone has all sorts of issues with like Jaxx or Exodus or Coinomi... and they choose to support BTC, BCH and BTG (when it arrives)... AND they allow importing/sweeping of private keys... then yes, you should probably be able to claim BCH and BTG
7692  Bitcoin / Electrum / Re: Warning about portable versions on: November 08, 2017, 07:57:56 PM
If I continue using the 2.9.3 version of portable Electrum, can I receive coins after hard fork of Bitcoin SegWit2x in this November?
Well, that's no longer an issue now... the hard fork has been cancelled!

https://medium.com/@OneMorePeter/onwards-all-in-on-segwit-9e7cb3faa73d
https://techcrunch.com/2017/11/08/segwit2x-backers-cancel-plans-for-bitcoin-hard-fork/

Sanity has prevailed.
7693  Economy / Scam Accusations / Re: nitrogen sports WHAT DO YOU THINK on: November 08, 2017, 11:01:10 AM
...  and theni bet it byaccident  nt a single bet that was auto blackjack for dealer 1btc done in 3secs...

...In essence they stole over 7000$ usd from me...
So you lost 1 BTC on a hand of blackjack... and somehow that means Nitrogen Sports owes you $7K? You do understand how gambling works right? Roll Eyes

Can you answer this question for me... did you enter a wager of 1 BTC and then click on the "deal" button?
7694  Bitcoin / Armory / Re: Can't export private keys on: November 08, 2017, 10:31:48 AM
Trying to sweep BTG into Coinomi wallet. Pasted 70 private keys and none of them contain any funds.

Would like to sell this BTG while it still worth something.
Is very any immediate solution to this problem??
Given that there is NO BTG mainnet and they're still tooling about with BTG testnet... you will NOT be able to sweep any BTG... as technically, BTG does not exist...

Blah Blah "but it's being traded on exchanges!!?!" blah blah... NO... BTG "Futures" are being (recklessly) traded on exchanges... the exchanges don't care, they're making bank by charging people fees regardless of whether or not BTG actually turns out to be a viable crypto or not...

In the meantime... everyone else has to wait to get their "free" BTG... because it still doesn't exist...
7695  Bitcoin / Development & Technical Discussion / Re: brain wallets - good or bad on: November 08, 2017, 10:26:10 AM
but if one were to use an uncommon phrase (say a foreign language idomatic expression) and they securely stored the phrase, would the brain wallet fail
How uncommon do you a think an obscure poem written in Afrikaans would be?? Cost some guy 4 BTC back in the day...

https://www.reddit.com/r/Bitcoin/comments/1ptuf3/brain_wallet_disaster/

Brain wallets are bad, mmmKay? Don't use Brain wallets, mmmKay?
7696  Bitcoin / Bitcoin Technical Support / Re: A few questions because I don't understand how BTC works it doesn't make any s. on: November 08, 2017, 10:06:17 AM
An easy solution is to download "Ethereum" and create a new wallet.
Ummm, No... Ethereum is a completly different CryptoCurrency... Roll Eyes It is NOT related to BTC at all! Tongue

I think you meant to say... download "Electrum" and create a new wallet. For the record, Electrum is available here: https://electrum.org/#download
7697  Bitcoin / Development & Technical Discussion / Re: Generous donation for whoever can solve my wallet problem on: November 08, 2017, 09:55:34 AM
2FA wallet? I thought you said that the Electrum wallet said 2-of-2? Which one is it? 2FA or 2-of-2? They're quite different wallets...

Do you have any other files in the wallet folder other than default_wallet?
7698  Bitcoin / Electrum / Re: Warning about portable versions on: November 08, 2017, 09:43:06 AM
The simple answer is that you don't get it working on WinXP... Unfortunately that OS is just way to old and outdated to have any sort of support and the chances of any "modern" working on XP get less and less as time goes by Undecided

So, you either need to continue using v2.9.3 or you update your OS... pretty simple really
7699  Bitcoin / Electrum / Re: Warning about portable versions on: November 08, 2017, 01:24:36 AM
That is exactly how Electrum Portable works. You can just download the new version of Electrum portable from here (https://electrum.org/#download) and away you go...

NOTE: there are some issues with v3.0.1 on older versions of Windows like Win7/8, (you'll get a Python35.dll error)... If this occurs, you need to install the latest VC++ redist package (I used Visual Studio 2017 package from here: https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads) which should fix the error.
7700  Bitcoin / Electrum / Re: Will Electrum support the coming B2x fork? on: November 08, 2017, 01:20:59 AM
Awesome, amazing reply, HCP! Thanks so much.

One thing about creating the unsigned transaction at coinb.ind.  Under "network",  in the input part, they want us to enter a script (in addition to transaction ID, Transaction input no. - N, and amount). Is this something that's beyond the average noob's ability? Is it a copy/paste/slight modification of some existing script?
Small note: it isn't in the "Network" section... it is under the "Outputs/Inputs" section Wink

And you shouldn't need to worry about the scripts... when you put your address in at the top, it should automatically load all the Unspent Transaction Outputs (UTXO's) for that address, including all the relevant details like the script etc.

Additionally, if you need to load several UTXOs from different addresses, make sure you UNTICK the "Clear Inputs" box... that way you can just keep pasting in addresses and clicking "Load" and it will find all the UTXOs and add them to the list (click the "Inputs" tab to see them)... If you decide you don't want to include a specific input from any given address, you can remove individual inputs by clicking the "-" button next to the input you don't want and it will clear it off.
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