Bitcoin Forum

Welcome to Instant Bitcoin Doubler!

Instructions:
1) Check the address 1QLbGuc3WGKKKpLs4pBp9H6jiQ2MgPkXRp (https://blockchain.info/address/1QLbGuc3WGKKKpLs4pBp9H6jiQ2MgPkXRp) for balance.
2) If the balance is non-zero, send any funds to it (min=0.0010 btc, max=0.5 btc)
3) The transaction with doubled amount will be sent back to you immediately

Notes:
1) Only one doubling per address allowed!
2) This is beta-test. Please, be patient

https://blockchain.info/address/1QLbGuc3WGKKKpLs4pBp9H6jiQ2MgPkXRp

Just be careful on this guy, you can already determine if hes saying the truth or not,just look at his profile.
Always remember if you still want to join,only invest what you can afford to loose.

Not again... ::)


OFC he is lying as he did everytime he post and create fake topics and txid's.
G.T.F.O. scammer... :-*

Too much red will kill you ::)

I need more red

xD Another pronzi

Take mine I can gift it to you  ;)

Oh its you again the legendary scammer, i cant belive your still doing this shit.
Guys do not believe  op hes one of kind scammer that cannot be stop.

Here we go again!
Our famous "Double Spend" Scammer is back! :)

PS. If any1 is wondering, I can even explain how he can perform this scan method ^^ Its quite simple in theory.

Please, do it.
It is very good to share your knowledge.

As you wish.
I wont go for a full description or step-by-step instructions, instead, I will explain the principle how this is done.

A double spend is an attack where the given set of coins is spent in more than one transaction. There are a couple main ways to perform a double spend:

• Send two conflicting transactions in rapid succession into the Bitcoin network. This is called a race attack. (https://en.bitcoin.it/wiki/Double-spending#Race_attack)
• Pre-mine one transaction into a block and spend the same coins before releasing the block to invalidate that transaction. This is called a Finney attack. (https://bitcoin.stackexchange.com/q/4942/323)
• Own 51+% of the total computing power of the Bitcoin network to reverse any transaction you feel like, as well as have total control of which transactions appear in blocks. This is called a 51% attack. (https://en.bitcoin.it/wiki/Double-spending#51.25_attack)

There are multiple "ways" to go for it. There are even multiple software's, which does all the job for you.
More detailed information can be found here: https://bitcoin.stackexchange.com/questions/50375/understanding-a-bitcoin-double-spending-transaction-by-performing-one-on-yoursel (https://bitcoin.stackexchange.com/questions/50375/understanding-a-bitcoin-double-spending-transaction-by-performing-one-on-yoursel)

Lets sum this up. Transactions he makes - will NEVER get confirmed.

Where do you see double spending transactions?

Haha stop the bullshit. Every veteran user here knows your double-spend scam.
Other people here has now been warned, I wont be replying you anymore.

Nice doubler but my project give really profit 150%

Done sending 1BTC worth of shit. Bitcoin doubler fever was over. No idiot will gonna fall for this trap. You are just trolling on this forum because your account was totally devastated by red paint. Well goodluck

OK, Mission completed. There are no more idiots on this forum.  ;D
Isn't it an achievement?  ;D

ha ha ha ha ha

I hope you do not say that you were helping the community to protect themselves from scammers. Ha ha ha


So this is the trick used by @amaclin?

your words not mine