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 Bitcoin Thread v1, and other cryptocurrencies

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wengherng
post Feb 15 2017, 10:56 PM

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QUOTE(kmarc @ Feb 15 2017, 08:08 AM)
Bought my first bitcoin in localbitcoin yesterday!  rclxms.gif

Quite convenient to use. Just have to wait for a good deal. Almost bought at RM4600 but the guy's local bank was full!!!  blink.gif Never heard of somebody's bank full of money!  notworthy.gif

In the end managed to get some at around RM 4547. rclxm9.gif

Localbitcoin gives it's own BTC wallet. Say, is there any BTC wallet that is considered the safest? Or all BTC wallet is ok?  hmm.gif
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Congratulations mate.
Now, the very first rule of thumb in investing in bitcoins......NEVER EVER put your bitcoins in your online wallet, especially wallets offered by exchanges, other than a small amount that you are planning to trade or use in the very near future.
If you are planning to invest in the long term (i.e. keep and hold, instead of frequently buying and selling), then I strongly recommend investing some money in a good hardware wallet, and practice cold storage (i.e. keeping your bitcoins offline, where it can never be hacked or stolen).
There are several good and trusted brands out there, like Trezor, Ledger, Coolwallet, etc. that you can look up in Google and review yourself.
I cannot stress this enough......online wallets are NOT suitable for storage of cryptocurrencies, no matter how secure they say they are, or how many factors of authentication they use.
Cold storage, no exceptions!
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wengherng
post Feb 16 2017, 12:08 AM

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QUOTE(effectz @ Feb 15 2017, 11:55 PM)
What I meant was cloud mining. I researched a lot about trusted cloud mining provider and then arrived to genesis mining. So far so good.
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Cool, I have no experience in cloud mining.
How much returns are we talking about?

wengherng
post Feb 17 2017, 12:14 AM

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QUOTE(hesoyum @ Feb 16 2017, 09:06 PM)
I also new to bitcoin but read online is to only put small amount in the online wallet like on coinbase.com and blockchain.info
hardware wallet i saw review online at www.coingecko.com/buzz/cryptosteel-review
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Yes, only put in a small amount which you are intending to use for trading in the very near future.
In fact, I do not keep any at all in online wallets......all in a hardware wallet, in cold storage.


QUOTE(kmarc @ Feb 16 2017, 09:09 PM)
I just bought Trezor hardware wallet from their online store. Expensive but for investment, no choice. USD 99 for the device and USD 29 for courier.  cry.gif

Today, bought some bitcoins from Remitano. Quite convenient too. Surprise that nowadays, interbank instant transfer is really instant!  rclxms.gif

After buying the bitcoin, I notice my bitcoin wallet address changed. I panicked because I used the previous address.  icon_question.gif After that, I realized that the addresses will change, I think after a few transactions?  hmm.gif Will read more of their FAQ later on. Anyway, received my bitcoins after 30 mins... phew!
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Good for you. Trezor is a good brand.
Personally, I use Coolwallet, and paid USD 119 for it.

wengherng
post Feb 17 2017, 12:32 AM

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QUOTE(effectz @ Feb 16 2017, 11:46 PM)
After upgrading to 2 TH/s, I got around 0.0006 a day.
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That's something like RM 1k per year if you run it full time.
Not bad at all.


QUOTE(jack2 @ Feb 16 2017, 11:51 PM)
Why need that hardware wallet? To store password?
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To store your private keys.
Your bitcoins are not really yours, unless you control your private keys yourself.
Bitcoins are pretty much like cash, i.e. whoever holds your private keys will have the full unobstructed access to spend them......hence a hacker who is able to hack into the exchange may be able to steal all the private keys stored by all the users of the exchange, and therefore "steal" your bitcoins.
In a hardware wallet, the private keys are stored offline, disconnected from the internet, and therefore can never be hacked.


wengherng
post Feb 17 2017, 11:55 PM

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QUOTE(jack2 @ Feb 17 2017, 03:33 AM)
Private keys consist like long long password? Must buy such hardware to store it?
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In simple terms, private keys are long strings of alphabets and numbers, or somewhat like a long password as you mentioned.
In order to move any bitcoins (buy, sell, transfer, etc.), it requires two parts, a public key and a private key, and these two combined will signify that you have the authority over those bitcoins.
Anyone who controls the private keys, control the bitcoins.
Treat it exactly as cash. If you wouldn't trust your hard earned money with some random stranger on the street, you shouldn't trust an online website or exchange to have control over your private keys either, because quite simply, you just can't be sure that they will not be hacked, or go bankrupt, or just one fine day decide to close down the business and disappear with all the stored private keys of its customers.
Remember, unlike conventional banks (which are regulated by the government and have all its deposits insured), bitcoins are NOT insured and NOT protected/backed by any government, so if they're gone, they're gone.


QUOTE(sirxl @ Feb 17 2017, 07:23 AM)
just download reliable apps like mycelium or airbitz on your phone,
and keep it offline as long term storage.
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I'm one of those more paranoid ones.
I believe that even mobile phones can be hacked.
Keeping them some place really safe, where they are never connected to the internet, like a hardware wallet, is still the safest bet.




wengherng
post Feb 18 2017, 11:48 AM

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QUOTE(jack2 @ Feb 18 2017, 12:18 AM)
How to keep the private key ourself instead of by Bitcoin providers?
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1. Buy a hardware wallet from a respectable company, and verify that the code is open source.
2. Set up the hardware wallet. VERY IMPORTANT: Write down the recovery phrases, in case your hardware wallet is stolen or broken.
3. Hardware wallet will generate an address.
4. Send all your bitcoins into the address given by the hardware wallet.
5. Keep hardware wallet in the safest place you can find, like in a household safe.
6. Ta-da! You're done.

What this means is, instead of the online exchange/wallet provider generating the address and the public/private keys on your behalf (which means they know all those private keys), now the private keys are generated directly by the hardware wallet, offline.
Nobody knows the private keys except the person who is holding the hardware wallet.
It is practically impossible to hack or steal your bitcoins because hardware wallets are not connected to the internet.
But of course, like I said, you need to keep the hardware wallet safe, so it is not stolen. Anyone who has control over the hardware wallet, controls all the bitcoins stored there.
Always keep in mind: bitcoins = cash.

Good luck! thumbsup.gif
wengherng
post Feb 18 2017, 03:14 PM

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QUOTE(kmarc @ Feb 18 2017, 12:18 PM)
So if the hardware wallet is broken or stolen, our Bitcoins are still safe as long as we follow the recovery process?
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If the hardware wallet is broken, definitely all the bitcoins are safe; just get another wallet and initiate the recovery process, which is relatively simple. (Usually you just have to enter a 12-word or 24-word recovery phrase. But make sure you have kept your recovery phrase safely accessible somewhere, because if you lose it, then your coins are gone forever.)
Now, if the wallet is stolen, on the other hand, that will depend on whether the thief knows what he stole.
If he's smart enough to know what a bitcoin wallet is, then he could quickly do a transfer from your wallet to his own account, and then, sorry to say, your coins are gone. End of story.
But if, for example, he just ransacked your house and took it without knowing what it is, then you could quickly get a new wallet, initiate the recovery, then quickly transfer the coins to a new address, and you're safe.


QUOTE(effectz @ Feb 18 2017, 02:43 PM)
Exactly. Do away with hassle of own mining. I have 3% off promo code of you're interested.
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Thanks very much for the offer mate, but I'm not considering it at the moment.
I suppose it is most suited for people who already leave their computers switched on most of the time.
I rarely switch on my computer at home, so to leave it permanently on just for the sake of this, I am not entirely sure the returns are worth the trouble? (i.e. the electricity bill, etc.)


wengherng
post Feb 19 2017, 12:05 AM

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QUOTE(kmarc @ Feb 18 2017, 07:06 PM)
Oh, I had the impression that the hardware wallet would have some security feature to access it.

Should get TS to update the valuable information you provided in the first page!!!

Damn, bitcoin value keeps on increasing!

Beside one exchange that got hacked and bitcoin stolen, was there any other incidence?
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Some hardware wallets do allow you to set a PIN as a password to access it, but also many that do not.
I suppose you are referring to the famous Mt. Gox incident, but since then, there were quite a number of exchanges that got hacked to various degrees, and many lost a significant amount of bitcoins.
One thing to ponder about: the more famous the exchange, the more users it would have, and consequently the more bitcoins it would have. That would make them the prime targets of hackers, as the potential returns are astronomical. With the level of sophistication of hackers these days, it's only a matter of time before they find a fatal flaw in the security system and gain access.


QUOTE(jack2 @ Feb 18 2017, 11:33 PM)
Wow... It means that the hardware wallet has address and only 1 address is used?

Which hardware wallet is respectable and worth to buy?

Is there any bitcoin provider that allows you to keep the private key by the owner so no private key is stored with them via online?
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Different hardware wallets handle this differently, but usually they would be capable of creating several different accounts and private keys.
Personally, I use Coolwallet, which is capable of having up to 5 separate accounts, with each account capable of generating practically an unlimited number of private keys.
But there are many good brands out there, such as Trezor, Ledger, Keepkey, depending on your objective, budget and preference.
There are many online wallet providers that claim to provide secure wallets with multiple factors of authentication, and many now claim that they themselves do not have access to your private keys......but being the paranoid person that I am, I just do not trust them.

Check out this webpage for more basic information on the various types of wallets.

https://www.buybitcoinworldwide.com/wallets...ardware-wallets




wengherng
post Feb 19 2017, 01:59 AM

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QUOTE(jack2 @ Feb 19 2017, 12:13 AM)
The one I am using has two authentications I.e. login via email approval and SMS code.

And then, inside the wallet, it has dunno what wallet that is unable to send Bitcoin outside and allows only to receive. In order to send it, need own private key but if I lost it, I won't be able to recover. Thus, I afraid to transfer it to that wallet.

I need to read more their FAQ to get it.
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Sounds like blockchain.info?
Anyway, it doesn't matter which wallet you use, the concept is the same.
The most important thing to remember is that bitcoins=private keys=cash.
Each type of wallet has its pros and cons, and you have to decide for yourself what level of security you need, in order to feel comfortable.
The more secure and private, the higher the responsibility you must assume yourself to take care of your private keys.
You are your own bank, no one else can access your funds......but if you lose your keys, no one else can help you recover them either, and they will be gone forever.



wengherng
post Feb 19 2017, 02:02 AM

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QUOTE(Nocomment25 @ Feb 18 2017, 06:00 PM)
BTC price is up and up again.. for newbies out there, get the knowledge first. Start small and slowly buy more when u know the potential of bitcoin. Start the ball rolling and your interest will follow.. bro wengherng is a pro.. let's us all ask him loads of questions.. make him mad..
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You give me too much credit!
I'm just an average Joe like everybody else......we're all here to share and support each other, eh?
Besides, spreading awareness will hopefully get more people interested and start to trade bitcoins, thus increasing the Malaysian bitcoin liquidity, which will benefit everyone.
Happy investing!
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wengherng
post Feb 19 2017, 03:22 PM

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QUOTE(kmarc @ Feb 19 2017, 08:22 AM)
I see. I don't think Trezor has one as I couldn't find the info. Guess have to wait for mine to test it one.

Scary. Hope I can get my Trezor soon. Planning to get some more bitcoins!  rclxms.gif Hope prices can drop down a bit.......  sad.gif
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Yes, Trezor comes with a PIN function.
So, even if a thief steals your Trezor and tries to send all your bitcoins to his own address, he cannot complete the transaction unless he enters the PIN.
And if I'm not mistaken, it is set up so that the reset time increases exponentially every time you key in a wrong PIN.
So, don't worry, it's pretty secure.


QUOTE(jack2 @ Feb 19 2017, 08:54 AM)
Ya, blockchain.info. Are they good enough?

Coolwallet = USD119... cry.gif
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It's difficult to judge if any website is "secure enough" but with the 3-factor authentication that Blockchain.info uses, I would have to say it's about as safe as an online wallet can get, at the current moment.
In my opinion, it's "good enough" as a temporary holding vault, e.g. when you are doing a couple of trades within a short span of time......but anything over a few days, I'd insist to take my coins offline into cold storage.
Of course, nothing is really 100% secure, not even hardware wallets.



wengherng
post Feb 19 2017, 03:51 PM

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QUOTE(sirxl @ Feb 19 2017, 09:07 AM)
use wallets like airbitz or mycelium to keep your private keys safe.
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Personally, I've not tried them yet.
They seem to have very good reviews.
But then again, in my personal opinion, secure as they may be, they are more mobile wallets than cold storage vaults.
They are great to be used as a day-to-day bitcoin wallet for general usage, but I wouldn't trust my life savings there.

QUOTE(sirxl @ Feb 19 2017, 03:37 PM)
fees for bitcoin txs are going up, latest one was MYR 2.80 for me. I might need to use other alt-coins for small txs.
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What alt coins do you currently have?
I've toyed with the idea of getting some ETH but have not taken any action yet.


wengherng
post Feb 19 2017, 11:03 PM

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QUOTE(kmarc @ Feb 19 2017, 10:50 PM)
Thx for the info.  thumbup.gif Looks like I will try airbitz first.  nod.gif

As I understand it, airbitz will be my bitcoin wallet. So if I'm using localbitcoins and remitano, I would need to transfer the bitcoins from those exchanges to my airbitz right?
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Yes, totally right.
Never leave your bitcoins on exchanges.
That's the first place that hackers will target.


wengherng
post Feb 20 2017, 01:31 AM

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QUOTE(kmarc @ Feb 19 2017, 11:18 PM)
Nice, nice and nice! Everyday learning new things on bitcoins and how it works! Thx!  thumbup.gif

Anyway, the reason I'm so interested in bitcoins is basically diversification of investment i.e. put your eggs in different baskets. Yeah, bitcoin has risen so much and I'm such a late comer but there are some people out there who thinks that it may go up much much higher. Whether this is a right investment remains to be seen. I'm prepared to make a lost but really hope it will be a good investment. I guess you could call it the high-risk high-return investment as opposed to something like FD which is low-risk low-return investment.

What about you guys?
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As with any investment, it could go up to USD 5k, or even USD 100k, or it could go down to zero.
History will tell whether you made the right decision or not, 5 years down the road.

Instead of just being an investment, think of bitcoins as a hedge.
In that sense, it works somewhat similar to gold, but in digital form......it's intrinsic value is purely determined by what the global population perceives its value to be, and it could be an effective hedge when global fiat currencies are too volatile, for example during an economic crisis.
This is why we see such a sudden demand for bitcoins in countries like India, Venezuela, China, etc. where their governments started enforcing currency controls.
Or in Zimbabwe, Nigeria and other African countries with high and volatile inflations.

wengherng
post Feb 20 2017, 11:01 AM

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QUOTE(ZintaEnzio @ Feb 20 2017, 10:28 AM)
anyone here heard of a cryptocurrency canada licensed changer and investment call CCP?
[attachmentid=8503508][attachmentid=8503513]
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Actually there are many cryptocurrencies from Canada, like CAD-COIN, Canada eCoin, just like the many cryptocurrencies from various countries around the world.
Personally, I've not heard of CCP.
As I understand, with the exception of the top 5 cryptocurrencies in the world, none of the others have any real meaningful market capitalisation, and are not really widely adopted.
Investing in those cryptocurrencies is inherently riskier, as nobody can really say whether they will take off.
For investing, I strongly suggest keeping to the top 3 only.


wengherng
post Feb 20 2017, 11:56 AM

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QUOTE(kmarc @ Feb 20 2017, 11:18 AM)
Thx for the info.  For me, I have some other instruments for hedging. That is why I'm treating bitcoin as an "investment tool".

From what I can understand, bitcoin value is based on multiple factors but I just can't help wonder what happens if the USD dollar crashes (predicted by some). Will bitcoin's value go down with the dollar?
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Well, that's the beauty about cryptocurrencies......they are decentralised, and the value depends on whatever people think they are worth.
If that hypothetical situation really happens (USD crash), then my prediction is that the bitcoin value will soar exponentially.

Think about it this way.
Currently, the USD is only worth what it is worth at the moment, because all the other countries in the world use it for international trade, and everyone collectively say it is worth this much, at this time.
If the US dollar crashes, that just means that people think it is not worth this much anymore, and nobody wants to keep it anymore, meaning people are selling it off for cash in their own currency.
All those cash need to go somewhere (people don't trust banks anymore as the bank interest rates are generally barely enough to beat inflation) so they would then place them into other investment vehicles, and bitcoin is one of the fastest growing ones, gaining popularity on a global scale.
At the same time, American citizens would realise that their own savings in USD is getting devalued at a crazy pace, so in order to stop their losses, they need to convert their savings into something that is not as volatile, and again, bitcoin offers exactly that.
Traditionally, people in these situations put their money into gold, as it is seen as a safe hedge during economic turmoil, but these days, bitcoin offers the same, with more security and versatility.
The problem is, there are only limited numbers of bitcoins available, and only 21 million bitcoins will ever be available, EVER.
So, the more money pours into the bitcoin market capitalisation (i.e. the higher the demand), the higher the price will go.

Above is just an extremely simplified scenario (much more factors are involved), but I hope it sort of answers your question to some extent.

wengherng
post Feb 20 2017, 02:43 PM

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QUOTE(Nocomment25 @ Feb 20 2017, 01:50 PM)
Hi all,

I'm quite amazed by the level of knowledge and level of  maturity we have here.. really take me by surprise, I really thought bitcoin in malaysia is still 'ais age' though still many are yet to know.

In my personal opinion.. I think we are getting abit paranoia about cold storage. I think if we plan to buy BTC in big numbers like our forummers taikors here then yes.. please go ahead and get a hardware wallet..
Is a must!! Get yourself protected..

For those who are starting out and still testing water, leave the cold storage aside first.. I mean if u have 0.001BTC, what cold storage u r talking about!!

If u start to accumulate around 1-2BTC then yes.. time to think like a pro and guard it as much as u can..

Hope it helps!
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Ah OK, yes you made a good point also.
I probably should have pointed it out sooner.
If just starting out and buying 0.001BTC then it makes no sense to invest hundreds of ringgit in a hardware wallet.
I've once heard of a general rule of thumb of factor-5.
Meaning, if you are going to buy bitcoins worth 5 times more than a hardware wallet (which costs approx. USD 120 these days) then it's advisable to get one.
Thanks for pointing this out.
Don't want to scare people away from bitcoins by thinking they have a very heavy upfront hardware investment!

wengherng
post Feb 20 2017, 06:18 PM

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QUOTE(kmarc @ Feb 20 2017, 05:47 PM)
Yes, that's the answer I'm looking for.  thumbup.gif

If bitcoin goes higher, they probably have to split the value like stock split. Imagine buying a pizza for 0.0000000001 BTC.  biggrin.gif
Yes, I'm amazed myself. Should have asked here much earlier when bitcoin was hovering around USD 300-400. I actually wanted to buy then but found it extremely difficult to buy using MYR. Oh well, better late than never.  nod.gif
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At the moment, the smallest division of bitcoin sub-unit is the satoshi, which is equivalent to 0.00000001 BTC (one hundred millionth of a bitcoin).
But you're right, if the value continues to go up, perhaps one day it might be necessary to divide it even smaller.
The blockchain technology is designed so that further subdivisions are possible in future.

Don't think about what "could have been" by looking in the past.
We always have perfect vision in hindsight......back then, while the value was still low, there were not so many companies and businesses that agreed to adopt bitcoin as an acceptable form of payment, so if things didn't work out, you could very well have seen the USD 300 value drop to USD 0.30 per bitcoin.
On the other hand, if the value goes to USD 10k per bitcoin in future, you will be thinking to yourself, "Why didn't I buy more bitcoins when it was so cheap at USD 1000 per bitcoin...???"



wengherng
post Feb 21 2017, 03:38 PM

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QUOTE(kmarc @ Feb 21 2017, 12:40 PM)
Damn you bitcoin. You're going up too fast. Please come down a bit. sad.gif
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Perhaps you can consider to exercise dollar cost averaging.
And if it helps, maybe you can try to think like this: if the future price of a bitcoin will go up to RM10k per bitcoin (for example), will it still matter so much whether you bought it at USD 1000 or USD 1080 now?

Hope that helps to ease the pain a little...... biggrin.gif

This post has been edited by wengherng: Feb 21 2017, 03:39 PM
wengherng
post Feb 21 2017, 05:23 PM

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QUOTE(kmarc @ Feb 21 2017, 04:37 PM)
Already accumulating but still not reaching my target amount as I wanted to wait for my hardware wallet. Looks like I can't wait, just have to use software wallet like Airbitz for now.

Thx for the easing of pain. biggrin.gif I'm actually thinking along that line too, that it doesn't matter it is going up as my target price is at least x5.... ya ya, I'm dreaming... smile.gif
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If you don't mind sharing, what's your target amount, that you mentioned above?
Thinking of joining the Million Club?



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