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Topic: [PROOF] Altcoin Scam - page 4. (Read 7035 times)

sr. member
Activity: 265
Merit: 250
July 17, 2014, 07:48:56 PM
#26
Thanks OP need more like you to keep this place honest, it was also in poor taste that the scam dev borrowed the name of an already existing coin that has a very decent and honest hard working dev. Hope people don't confuse this scammers work with that of the original coffeecoin now renamed coffeecoin V2 cfc2.

legendary
Activity: 996
Merit: 1013
July 17, 2014, 05:23:25 PM
#25

Thanks for the brief tip Tongue

Since you know javascript, you might want to take a look at
http://bitcoinjs.org/

But honestly C++,  is pretty much a must for
an aspiring crypto dev.

It also takes a while to understand how the protocol
works. For that, here is a classic thread
https://bitcointalksearch.org/topic/satoshi-client-operation-node-discovery-41722

plus the documentation
https://bitcoin.org/en/developer-documentation

hope that helps.
sr. member
Activity: 700
Merit: 250
July 17, 2014, 05:16:54 PM
#24
We need more people like you in crypto.
Great Work.
hero member
Activity: 770
Merit: 515
Guto Schiavon / FOXBIT
July 17, 2014, 05:10:12 PM
#23
Thank you for scan ARCoin source code Cheesy
member
Activity: 118
Merit: 10
July 17, 2014, 04:44:22 PM
#22

Obligatory request on behalf of all proto-coders:

Where can I begin to learn how to comprehend all the disciplinces of the cryptofields with only a basic 101 understanding of programming?

 (Personally, I've only coded with javascript...)?

Basically, if I want to dive deeper into the code of crypto... where do I begin "khan academy" style?
C++?





C++?

You got it.

Thanks for the brief tip Tongue
member
Activity: 118
Merit: 10
hero member
Activity: 574
Merit: 500
July 17, 2014, 04:39:41 PM
#20
Great work.  Smiley
sr. member
Activity: 364
Merit: 250
Twitter: @leandrogmachado
July 17, 2014, 04:28:10 PM
#19
Well,

Not that I support scam coins, and not stating an opinion about the coins is question, but the OP is wrong about a few things in terms of code and explorers.



GOOD and nice explanation guy!
I use an generic information on my images! And yes, you're a good developer and 1,000 times better than me... Thanks for you post and explanation! On next scamcoins I'll quote your text! OK?
But here I have the proofs using the code that you said!
FIRST:


SECOND:


THIRD:



Thanks
legendary
Activity: 1064
Merit: 1000
July 17, 2014, 04:20:52 PM
#18
Well,

Not that I support scam coins, and not stating an opinion about the coins is question, but the OP is wrong about a few things in terms of code and explorers.

For now, lets just start with the the line he claims hides the subsidy amount of a block , does nothing of the sort.

Code:
if (fDebug && GetBoolArg("-printcreation"))

This line is saying: If the Debug flag is true and the parameter "printcreation" is true:

The Debug flag is turned on with a parameter when first starting the coin daemon/client. "printcreation" is a specific parameter to print out the block creation info in the debug log.

If both these conditions are not true, the next line that "hides" the subsidy does not execute and does nothing.

However, the debug print statement does nothing of the sort.
Code:
printf("GetProofOfWorkReward(): create =%s nSubsidy=%"PRId64"\n", FormatMoney(nSubsidy).c_str(), nSubsidy);

The printf statement is simply that, print(in this case to the debug log).

"GetProofOfWorkReward(): create =%s nSubsidy=%"PRId64"\n"

Means the literal words:  GetProofOfWorkReward(): create =

The %s means the first string argument declared after the quotes, in this case : FormatMoney(nSubsidy).c_str(),

The c.str() simply means to cast nSubisidy as a string instead of the numeric type that it is. This does not change the value or anything of the sort, only returns it as a different type.

%"PRId64" simply means to expect a 64 bit number, instead of a string.

What all this means is that Create= will show a nice formatted representation of subsidy and nSubsidy=%"PRId64 will show the raw number.

nSubisdy is declared in the above code and is not changed in these lines, so it will print to the debug log the correct number.

Now the Block explorers.

There is something wrong with the explorer  or the setup of the explorer you are using.

If you do any research on me, you will discover that using and writing block explorers is one of the major projects I have done here for a few years.

I have used, modified and ran explorers based an ABE. Most recently I have written a completely new block explorer system from scratch and my block explorer service is based on the new system.

www.cryptocoinexplorer.com

Now, I will admit that I do not have any experience with so called "Block Crawlers", which are not really block explorers in my opinion as they do not create and maintain a database separate from the coin daemon.

However, I highly doubt they are using the "Debug output" to get their information. If they are, that is not good at all.

If you want to prove the daemon is "lying" try this:

issue this command:
Code:
getblockhash 1

Assuming the block in question is block 1. Use whatever block you question.

then:

Code:
getblock {Block hash from step one}


That is the information my explorer system uses and to a degree ABE will use (Though Abe will also use the blk.dat file to try and extract information)



Now, before you decide to go off on some crazy rant, I suggest you look a bit into who I am and my reputation around here, you might just find I know what I am talking about.  Smiley









sr. member
Activity: 476
Merit: 250
July 17, 2014, 04:16:09 PM
#17
Congratulation on the find and your great explanation !
legendary
Activity: 2413
Merit: 1003
July 17, 2014, 04:00:43 PM
#16
Well done OP! We can't be sure scam coins were mined, but it is certainly possible! and dev can also hide the coins from a block explorer. So, all alts can do this?


don´ t worry, Mr. Machado is now officially "scam sniffer"  Grin
sr. member
Activity: 364
Merit: 250
Twitter: @leandrogmachado
July 17, 2014, 03:46:54 PM
#15
Well done OP! We can't be sure scam coins were mined, but it is certainly possible! and dev can also hide the coins from a block explorer. So, all alts can do this?

Yes, if the developer want to do he can do, but can find for developers that have access to source-code!
hero member
Activity: 672
Merit: 500
July 17, 2014, 03:31:52 PM
#14
Well done OP! We can't be sure scam coins were mined, but it is certainly possible! and dev can also hide the coins from a block explorer. So, all alts can do this?
sr. member
Activity: 364
Merit: 250
Twitter: @leandrogmachado
July 17, 2014, 03:31:31 PM
#13
Guys, I've compiled this SHITCOIN to developer and my friend request a low level sniff on this code and I find this! So, It's scam and I'm asking for a fee to find new scams because the Developers can need a seal that is a good choice to invest!
full member
Activity: 168
Merit: 100
July 17, 2014, 03:15:46 PM
#12
Hot damn,  good job on sniffing out scam coins.  We need more of these kinds of service before people start throwing their money everywhere when it should go here to this guy.
legendary
Activity: 1946
Merit: 1005
My mule don't like people laughing
July 17, 2014, 03:10:44 PM
#11
Thanks for this, I wonder how many other coins are similar. Probably the same dev.
legendary
Activity: 996
Merit: 1013
sr. member
Activity: 364
Merit: 250
Twitter: @leandrogmachado
July 17, 2014, 02:37:46 PM
#9
Guys, I'm talking about CoffeeCoin [COF]!

@Lucksee

You need invest your time to learn and patience!

member
Activity: 118
Merit: 10
July 17, 2014, 02:21:51 PM
#8
Obligatory request on behalf of all proto-coders:

Where can I begin to learn how to comprehend all the disciplinces of the cryptofields with only a basic 101 understanding of programming?

 (Personally, I've only coded with javascript...)?

Basically, if I want to dive deeper into the code of crypto... where do I begin "khan academy" style?
C++?
member
Activity: 63
Merit: 10
July 17, 2014, 01:19:23 PM
#7
I'm relieved to hear that. I knew the original COF was useless, but the CFC2 wallet seems to work OK and I'm hoping they go up in price now the previous devs mess has been fixed.
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