see this link
https://bitcoin.org/en/you-need-to-know#instant

At the second row at table said  : Only safe if you trust the person paying you


Is there any approach for reverse a transaction before i take confirmations ?

Hello ,

Is there any formula for CALCULATING chance of finding a block at solo mining ?

[G]

Hello ,

how can i make a Arbitrary address ?
I saw this site today http://luckyb.it/ . they have some BTC addresses that all of them begin with 1Lucky and for each color , first letter after 1lucky is same as the name that color ..  .

See these :


1LuckyG4tMMZf64j6ea7JhCz7sDpk6vdcS ===> for green

1LuckyY9fRzcJre7aou7ZhWVXktxjjBb9S ====> for yellow

Hello ,

I thought all of bitcoin addresses begin with 1 but saw some addresses in last days that they begin with 3 .

How is it possible ? How network find them ? how can build one of them ?

Hello ..... How bitcoin core makes a Privkey ? the privkeys are prepared in bitcoin core and it chooses one of them ? or it has a mechanism for making the privkey ?
If there is a sequence order to make Privkeys what are these orders and mechanisms ?

I upgraded to new Hd version but The existing wallet is disable :





How to import old wallets ?

Hello
How can i import Thousands of addressees to my wallet Simultaneous by privekey ? without rescan per addressees ?

How to Import Multi privkey into bitcoin core at same time ( once ) , not separately ?

How to import Multibit.wallet into bitcoin-QT ?

Hello ,

I will buy your biction wallet with price 0.003 bitcoin .
The wallet must be created before may 2014 .

Hello all ,

I have a strategy for dice gambling .

The strategy is very simple and seems it's profitable .

I think if someone can make a bot for it , dice sites such as Primedice [that are trusted] are going to down due profitability of the bot !

Who is ready for making that bot for Primedice ?

hello all ,

I'm very surprise


I can't say anything but my wallet hacked even when i 've use 2FA including email confirmation code !!!

And i surprise that there was no click on confirmation code in my email !!!!!!

Very very intersting bussiness

Please use offline wallet and say goodbye to blockchain

Hello all BTCT's Members ,

I'm looking for any script like dice,surf,hyip,PTC ( paid to click ), Paid to sing up, MLM , cycler , doubler,casino and so on that using bitcoin as a payment methods .

How and where can i find them ?

The Free script is better than costly .

Thanks a lot!

Hello
Can someone write a code for mozilla or chrome that just automatic click on bet high on 999dice ?

Hello

Is it possible to mine more than one currency at different time intervals ?

For example I want to mine FTC,LTC,DOGE,42 each 30 minutes automatically without create 4 file .bat

Is that possible ? what's example of order line ?

Hello
Where can i buy script like hyip and surf by support bitcoin ?

Hi all BT's members ,

I bought a HD 7870 graphic card but i can't get more than 16 Khash/s for mining litecoin . What's the problem ?

MB : Asus P8B75-v
Memory Ram : 4gig kingstone
PSU : Green 600A-Hp
Graphic card : Sapphire HD 7870 GHZ edition 2 gig memory
OS : Windows 7 32 bit