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1  Economy / Trading Discussion / Re: SierraChart bridge - Realtime Bitcoin charts [v0.5] (MtGox, Intersango, ...) on: November 21, 2013, 02:15:41 AM
bitcoin is getting more popular and going up a lot lately . check out the latest bitcoin information and charts .

http://www.vnbitcoin.org/bitcoincharts.php
2  Bitcoin / Mining speculation / Re: Bitcoin Difficulty Prediction Chart on: November 18, 2013, 01:02:55 AM
bitcoin charts with bitcoin difficulty predictions .

http://www.vnbitcoin.org/bitcoincharts.php        << in the middle of this page


bitcoin difficulty estimate will hit 25 billions by may - 2014
3  Bitcoin / Mining speculation / Re: Next difficulty ~670,000,000 ? on: November 18, 2013, 12:55:44 AM
it is 609,482,680

http://www.vnbitcoin.org/bitcoincharts.php
4  Bitcoin / Mining speculation / Re: 2 TerraMiner IV's for February delivery worth it? on: November 18, 2013, 12:51:36 AM
http://www.vnbitcoin.org/bitcoincalculator.php

for Feb - 5 delivery
it will take 111 days to get your money back .

Notice that by the time you check how many days it will take to ROI you will see a different data because this calculator stays current with bitcoin exchange rate and bitcoin network hash rate .  It updates new data every minute.

*when you will get your miner is the biggest unknown *  remember to change the delivery date (up to 90 days ) to late or early so you can understand more about your risk . You also have risk with bitcoin network difficulty and this calculator based future prediction on past developments ( average of last 15 difficulty increments ) and you can also input your own data  .  You also have exchange rate risk and this calculator is using the current exchange rate but remember to change it up and down to see your risk .  

Below is a link to feb-5 delivery detail calculations.

http://www.vnbitcoin.org/detailcalculation.php?name=CoinTerra-TerraMiner_IV_2TH(february-batch)&startdate=2014-02-05&costperunit=5999&wattperhour=1200&gigahazarate=2000&daytoincrease=11&testlopfirst=8&diffincrement=27.99&bitcoinperdollar=512.15&electriccostinput=.15&begindifflevel=3429206529.6666


* Don't trust any calculator if it is not update data every minute . A true calculator don't just give you a yes or no answer .  It should help you understand risk ! *
5  Bitcoin / Mining / Re: NEW: Bitcoin Mining Calculator with Difficulty Change Adjusted Calculations on: November 17, 2013, 08:20:35 PM

LOL - I put in some numbers and every single miner currently available for sale and pre-order will never make ROI even with free electricity except for Cointerra IV miner - but that's assuming it is delivered on time.

I used 30% increment on difficulty.  Now it may not go up 30% every increment, but the last 2 have been over 30% and it's irrelevant if the last few cycles are near 30% if your devices is already down to mining satoshis.

I'm going to sit on my sit on the sidelines with my 300GH and wait for the dust to settle.  My 2011 GPU farm has already made more than coins than any ASIC could provide (short of shelling out 7 digits).

welcome to the new world as bitcoin increase prices $400 plus , now all of miners out there should give you a return investment within a few months.
6  Bitcoin / Hardware / Re: Is it still worth getting a 5 GH/s Bitcoin Miner BFL? on: November 17, 2013, 08:18:00 PM
 Grin it is time to buy 500 gh/s and above .
base on the current bitcoin price you should get your return on investment within 2 months.
your return on investment in BTC or in currencies  just click on the " show calculation (?) " link
here is the calculator that will do all of the calculations for you . 

http://www.vnbitcoin.org/bitcoincalculator.php
7  Other / Beginners & Help / Re: Sell Bitcoins for paypal? on: November 15, 2013, 05:44:41 PM
this website allow you to sell bitcoin and receive payment through paypal.  Their exchange rate and fee are a lot better than btc-e.com
http://www.vnbitcoin.org/sellbitcoinforusd.php

But with BTC to paypal most important is trust the transaction wont be charged back

http://www.vnbitcoin.org/sellbitcoinforusd.php   is very realiable so far . with no complain from anyone .  They are paying within 24 hours with their debit card.
 Bitcoin is a system base on trust . If seller just base on risk only , NO one should sale bitcoin at all .  Just believing and trusting the big name like mtgox and inputs.io . We can see the outcome . 
8  Bitcoin / Project Development / Re: Bitcoin profitability calculator test on: November 14, 2013, 10:07:09 PM
 Grin how about this calculator take into account future difficulty increase ?
future difficulty is based on past developments .
http://www.vnbitcoin.org/bitcoincalculator.php



9  Bitcoin / Bitcoin Discussion / Re: Bitcoin Detailed Calculator on: November 14, 2013, 09:32:17 PM
 Grin  a more complex bitcoin profitability calculator here
using average of the last 15 difficulty increments . based on past difficulty developments to predict future difficulty . automatic adjust when difficulty adjust .

http://www.vnbitcoin.org/bitcoincalculator.php
10  Bitcoin / Mining / Re: BitReturn.com - Introducing new Bitcoin mining forecast and ROI calculator on: November 14, 2013, 07:15:26 PM
Is this calculator predict the future difficult rate based on past developments ? like the calculator at
http://www.vnbitcoin.org/bitcoincalculator.php

Bitcoin difficulty prediction graph. either it take the default growth rate or user can input .  I put in 40 % .


11  Economy / Service Discussion / Re: Bitcoincharts hacked? on: November 14, 2013, 06:50:42 PM
 Smiley
more realtime bitcoin charts here

http://www.vnbitcoin.org/bitcoincharts.php
12  Bitcoin / Mining speculation / Complex mining calculator taking difficulty,delivery date ,exchange into account on: November 13, 2013, 03:58:07 AM
http://www.vnbitcoin.org/bitcoincalculator.php

1) Exchange rate is instant update into calculations.
2) No body can predict the future haze rate . The calculator is using the average of the last 15 difficulty increments . that is the average difficulty changed of the last 5 months. A realistic future prediction based on past developments .
3) List all of the miners available to buy in the market. Let you adjust the delivery date to early or late  up to 90 days . it is very important to take into considerations delivery time because so far no one have deliver on time.
if you have late delivery you can adjust the delivery date to figure our your lost to ask the manufacture for compesations .
4) you input your miner cost
5) you input your miner haze rate
6) your input your electricity cost kilowatts per usd
7) Showing calculation in details . just click on the " show calculation " link

Best of all this calculation will automatic adjust to the exchange rate , difficulty level changes and default delivery date. It will update new default delivery date as manufacture announced it and let you adjust your own date to after or before the default date .
*** Every time you visit the site you should see updated calculations as new data changes. It is not like other calculators that don't adapt to change.

This calculator also let you predict how much your miner will make after certain period of time.
13  Economy / Micro Earnings / Re: Where do I get free Bitcoin? The maintained list of verified free Bitcoin Sites. on: November 11, 2013, 02:56:48 AM
free bitcoin at vnbitcoin.org

http://www.vnbitcoin.org/freebitcoin.php

Why is an email address required?  
( Can anyone confirm this to be a legit site? I don't like submitting my address to any site. )

Is it a one time payout?

Thanks for the submission.  

I get suspicious when they ask for my email address without a reason. You could try filling in a fake email address.

 Grin Just got .001 BTC from them .   anyone else receiving BTC from them yet ?

I got mine too. No problems

Thanks for the report.

going to add http://www.vnbitcoin.org/freebitcoin.php  to your list ?


I am still suspicious about your requiring an email address.

What does everyone else think?


these websites promote them

www.landofbitcoin.com
http://mmo4me.com/threads/tong-hop-cac-site-kiem-btc-free-hang-ngay.127007/page-23
http://coinaid.com/free.html
http://www.newbitcoinworld.com/2013/03/list-of-sites-to-earn-free-bitcoins.html
https://bitcointalk.org/annoyance.php
http://www.bestfreebitcoin.com/
http://bitcoinwork.info/earn-free-bitcoin.html
http://www.coinjabber.com
http://www.btclinks.de/
http://forum-ptc-investigation.com/index.php?topic=10618.45

I am not sure what that proves.  And why are you talking like it isn't your site?


I like the site and I know the owner but I am not the owner. I also promote the site in my profile .  
it looks like you don't like my comments on your section and added a https://bitcointalk.org/annoyance*.php
link to it .  so this the last time I will be on your section .
have a nice day
14  Economy / Micro Earnings / Re: Where do I get free Bitcoin? The maintained list of verified free Bitcoin Sites. on: November 11, 2013, 12:24:11 AM
free bitcoin at vnbitcoin.org

http://www.vnbitcoin.org/freebitcoin.php

Why is an email address required?  
( Can anyone confirm this to be a legit site? I don't like submitting my address to any site. )

Is it a one time payout?

Thanks for the submission.  

I get suspicious when they ask for my email address without a reason. You could try filling in a fake email address.

 Grin Just got .001 BTC from them .   anyone else receiving BTC from them yet ?

I got mine too. No problems

Thanks for the report.

going to add http://www.vnbitcoin.org/freebitcoin.php  to your list ?
15  Economy / Speculation / Re: Wall Observer BTC/USD - Bitcoin price movement tracking & discussion on: November 10, 2013, 02:11:24 AM
look at the price going up in the last few days

http://www.vnbitcoin.org/sellbitcoinforusd.php

16  Economy / Economics / Re: Economics of mining today on: November 02, 2013, 02:41:49 PM
none of the pre order bitcoin miner out there can give you profit . see calculation http://www.vnbitcoin.org/bitcoincalculator.php
17  Bitcoin / Bitcoin Discussion / Re: [ANN] Bitcoin propaganda extreme QR-Code on: November 02, 2013, 02:32:21 PM
great info.  will add it to my bitcoin at http://www.vnbitcoin.org
18  Bitcoin / Pools / Re: bit pit - (LP, ESMPPS, 8-decimal payout, SSL, API, 0% fee, Almost 0% Stales!) on: November 02, 2013, 02:23:22 PM
thanks
I'll update my site
http://www.vnbitcoin.org
19  Economy / Speculation / Re: Useful Links on: November 02, 2013, 02:21:59 PM
http://www.vnbitcoin.org

free bitcoin
http://www.vnbitcoin.org/freebitcoin.php

bitcoin calculator
http://www.vnbitcoin.org/bitcoincalculator.php

bitcoin network

http://www.vnbitcoin.org/bitcoinhashrateandmarket.php
20  Economy / Speculation / Re: Useful Links on: November 02, 2013, 02:19:54 PM
http://www.vnbitcoin.org
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