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1141  Alternate cryptocurrencies / Service Announcements (Altcoins) / Re: [ANN][EXCHANGE] Poloniex - Crypto Exchange with BTC/NXT on: May 25, 2014, 08:43:03 PM
Hello I have been having problems withdrawing some monero, have already submitted ticket:

#4432 COMPLETE:ERROR

Not a big amount, but please fix, first time having problems with poloniex :/

This exchange is really a piece of crap for trading monero. Deposits dont show up. WIthdrawals always error.

If you're looking to become cryptsy no 2, well done.
1142  Alternate cryptocurrencies / Announcements (Altcoins) / Re: The Official Mastercoin Foundation, Master Protocol & Mastercoin Thread on: May 25, 2014, 08:41:29 PM
What % of MSC does JR own?
1143  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][MRO] Monero - Anonymous Currency Based on Ring Signatures on: May 25, 2014, 08:32:00 PM
We should keep a clearly maintained list of enhancements or extras MRO has brought to the cryptonote codebase.

For example the pools. And the GUI that is being worked on.

This helps us compare favourably to BCN in terms of advancing the cryptonote ecosystem.
1144  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][XC] -POW & 3.33% POS | 3 Exchanges | The first POS X11 Anonnymous wallet!! on: May 25, 2014, 12:57:54 AM
Will this become a pure proof of stake coin anytime soon? What is the schedule?

The coin will still have the extended POW but the # of coins produced by POW will be greatly reduced moving forward

What is the schedule for that?

Also what is the block reward?





within 5-10days

When you switch over to reduced PoW block reward, what size will the POS and PoW block rewards be respectively? That is my last question. If the PoW block reward is too low then this will disincentivize people from doing PoW mining and the dev of BlackCoin demonstrated a hybrid PoW/PoS coin with low PoW reward is typically wide open to a 51% attack.
1145  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][XC] -POW & 3.33% POS | 3 Exchanges | The first POS X11 Anonnymous wallet!! on: May 25, 2014, 12:50:12 AM
Will this become a pure proof of stake coin anytime soon? What is the schedule?

The coin will still have the extended POW but the # of coins produced by POW will be greatly reduced moving forward

What is the schedule for that?

Also what is the block reward?



1146  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][XC] -POW & 3.33% POS | 3 Exchanges | The first POS X11 Anonnymous wallet!! on: May 25, 2014, 12:44:38 AM
Will this become a pure proof of stake coin anytime soon? What is the schedule?
1147  Alternate cryptocurrencies / Altcoin Discussion / Re: Monero is on Bittrex on: May 24, 2014, 11:58:38 PM
Nice.

Now just to get on Mintpal, the big one.

The fact we've had 1000BTC days on a smaller exchange like Poloniex is very encouraging. God knows what will happen when we get on Mintpal.
1148  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][MRO] Monero - Anonymous Currency Based on Ring Signatures on: May 24, 2014, 11:56:27 PM
I am amazed at the amount of trolls on here...this is literally unbelievable...miserable pricks...

Trolls: Fuck you pricks, I am harvesting your tears like fucking rainwater and drinking them in my top fucking shelf margaritas hahahaha CRY CRY CRY PLEASE i love it =))) Every time you guys cry I feel sooo good hahaha

LOL

yeah that was a good post lol  Cheesy Tongue

Indeed. Gave me a good chuckle.

Guys, do we have any progress on getting listed on Mintpal? I know obviously we are cryptonote technology, which has different api's to Bitcoin but I think it would do wonders for our adoption if we could get on there.

I honestly think we could go up 300% if we got listed on Mintpal. Sadly I don't even see us on the list of coins to be voted in.
1149  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] BlackCoin (BC/BLK) | PoS | No Premine - No IPO - ONLY OFFICIAL THREAD on: May 23, 2014, 11:34:09 PM
stop replying to coinpredator(return) he is the last of the trolls left from the previous thread, just ignore him

+1.

Instead let's focus on this:

24 HR LOW - 0.00014800
24 HR HIGH - 0.00029550  
LAST PRICE - 0.00027199  

which happened after the market reacted favourably to some great things to come: http://www.reddit.com/r/blackcoin/comments/26bojv/big_news_blackcoin_new_developments/

So much good news. So much to look forward too. And with the Max Borges, the top tech PR firm to guide us, I see us getting a lot of high profile press. Especially with so much INNOVATION.


1150  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] BlackCoin (BC/BLK) | PoS | No Premine - No IPO - ONLY OFFICIAL THREAD on: May 23, 2014, 09:44:00 PM
Can rat4 link this topic in the first post of the previous topic, it's almost unfindable for new people.  Embarrassed

I agree. First and last post would be good.

+1.
1151  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][DRK] DarkCoin | First Anonymous Coin | First X11 | First DGW | ASIC Resistant on: May 23, 2014, 09:36:59 PM
This level of greed and hysteria is always a sign you're in a bubble. Reminds me of some of Bitcoin's bubbles.

The drop down from here is going to be sharp and very quick. Rises like this are never sustainable.

I will quote this in 2 weeks.
1152  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] BlackCoin (BC/BLK) | PoS | No Premine - No IPO - ONLY OFFICIAL THREAD on: May 23, 2014, 08:30:50 PM
"Hello everyone, I am here to announce current developments within BlackCoin

1) New PoS 2.0 System by rat4 The main man, rat4 himself, has been working hard and diligently on what we dubbed "PoS 2.0". This new Proof of Stake system will further solve potential attacks to vectors that other currencies are vulnerable to.

2) We are currently working on a new privately developed BlackCoin wallet. This wallet will introduced an exclusive anon and multi signature feature. Also along with that some More features that are yet to be announced but will be Revolutionary. The wallet is Code named "Legionaire".

3) Dzimbeck, an external developer, is working on a system that will bring smart contracts, decentralized cash/btc/blk markets, anti-malleability and other features.
4) We are now in conversations with a national sales team leader that worked for a very large visa/mastercard point of sale company. He will lead our national introduction to merchants on accepting Blackcoin through Coinkite and through a yet to be announced blackcoin wallet system.

5) It’s about one week until Coinkite will add BLK to their PoS systems. For those that do not understand the importance of this, this will make BlackCoin available in the real world. People will be able to buy BlackCoin directly from the terminals and also buy products directly from shops. In my opinion Coinkite is one of the most important companies in the crypto space right now.
We will be answering questions this sunday on our live BlackCast.
If you have any questions for us please feel free to leave your questions below.
I will See you all on Sunday :-) UBER UBER
"

ALWAYS BET ON BLACK  Cool
1153  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] BlackCoin (BC/BLK) | PoS | No Premine - No IPO - ONLY OFFICIAL THREAD on: May 23, 2014, 08:29:09 PM
1154  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][MRO] Monero - Anonymous Currency Based on Ring Signatures on: May 23, 2014, 07:09:17 PM
The windows 32 binary does not work and is corrupt when you try to extract the zip file.

Can someone please sort.
1155  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] BlackCoin (BC/BLK) | PoS | No Premine - No IPO - ONLY OFFICIAL THREAD on: May 23, 2014, 06:38:04 PM
Blackcoin mention on the financial times website - http://ftalphaville.ft.com/2014/05/23/1859942/whod-have-thought-cryptocurrencies-are-replicating-conventional-systems/

If you haven't heard of it, the financial times is the UK's most respected source of financial news both in paper and online.
1156  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][MRO] Monero - Anonymous Currency Based on Ring Signatures on: May 23, 2014, 06:22:44 PM

The dev of Darkcoin implemented a Much much more advanced CoinJoin than maxwell did.. You cannot compare the two. The darksend/masternode system is as anonymous as Ring Signatues.


The Darkcoin dev himself says Ring Signatures are more anonymous. Which is why he wanted to implement them in Darkcoin.

His words were pretty much, he will be implementing ring signatures, which will substantially improve anonymity.

It's pretty sad you bash MRO every day in here. You make yourself look quite the embarassment. Would you like us to post in your topic constantly bashing Darkcoin's weaknesses?
1157  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][XCO] XCoin | New Secure Hashing Algorithm (cpu only) on: May 22, 2014, 08:34:22 PM
So, HUGE progress this morning! I have a proof-of-concept of the anonymous transactions working on testnet! Here's some screenshots, these were 3 separate transactions sent to 3 different addresses, at separate times.

Notice how you can't tell who is sending to who. Soon all blocks will only have 2 transactions, 1 for the creation event and a merged transaction with everything else.

http://www.xcoin.co/coinjoin1.png
http://www.xcoin.co/coinjoin2.png

That's so cool you got it working, but could you explain to those of us that aren't knowledgeable what it all means please?  I understand how it's supposed to work, I just don't understand how to read the chart,  Cheesy  Tongue

I also feel that if you were to explain it, there would be great interest from the public!  Thanks!

Bitcoin is often promoted as being somewhat anonymous, but the main problem is that if I know your address, I can literally tell everyone you've ever paid. Imagine everyone you met, was able to see everything you bought in your checking account. That's pretty much the situation Bitcoin and other alt-coins are currently in. We need to move quickly to a anonymity-by-default approach.

There are many solutions out there for fixing this and we know how to implement them. But, the developers are very scared of implementing these fixes, with the possibility of bringing down a 10+ billion dollar economy.  So it will take years at the very minimum to do this.

So, that's where XCoin comes into play. I want solve many of these problems that Bitcoin and other alt-coins experience, making XCoin the beta to Bitcoin. The goal is to be years ahead in development, with cutting edge features that would be insanely difficult to pull off in their codebase.

So what progress was made this morning? I implemented a rough version of CoinJoin. The idea behind what I'm working on was originally put forward by Gregory Maxwell  and it's a great idea (if you want to read more, the original post is here: https://bitcointalk.org/index.php?topic=279249.0).

In short, transactions in the Bitcoin Blockchain are stored like this:

"User1 paid User12 the amount 1.2BTC"
"User4 paid User2 the amount 1.2BTC"
"User11 paid User3 the amount 1.2BTC"

In XCoin they'll look like this:

"Debit User1 the amount 1.2XCO, Debit User4 the amount 1.2XCO, Debit User11 the amount 1.2XCO"
and
"Credit User12 the amount 1.2XCO, Credit User2 the amount 1.2XCO, Credit User3 the amount 1.2XCO"

Notice, in the XCoin you can't tell who paid who. But in Bitcoin the parties are linked together. This will be a large step forward to providing anonymity by default.

It appears the technical design of this DarkCoin is fundamentally flawed and can't be fixed.

There must be some proof that senders sent transactions for all peers on the network to verify before they can accept the block and begin working on the next block solution. Such proof must exist otherwise balances could be stolen by rogue peers.

Thus I must assume you are doing a CoinJoin-like proof for all senders that in that block. And I assume these proofs are transmitted with the block, even if you purge them later (using a proof-of-work chain such as in the mini block chain design).

The problem is that CoinJoin is subject to denial-of-service attack in that if any sender fails to sign in the second step, then no senders can send.

Thus CoinJoin can't scale to a larger number of senders joined. It works best with a few senders and the probability of denial-of-service (rogue sender) is low.

Did you even read the CoinJoin thread carefully?

There is a second insoluble flaw that CoinJoin does nothing to obscure IP address and thus you have no anonymity against powerful entities.

P.S. I don't have time to read 300 pages of this thread to find out if you already addressed this issue. Please give me a link to any prior reply.

Wow, it's that open eh?

Still, this example implies that one could still link up the amounts of the transactions to find the end users.  How unique are transaction amounts, and how hard would it be to hide that level?  Is there a breaking up of the payment so that the amounts are harder to compare or something?  Or am I missing something due to the simplification of the explanation?  

Yes, you could still use the transaction amounts to track money through the system. This combined with some logic to use common transaction amounts or some other logic like that in the wallet could definitely help. Even with the problems, having coinjoin implemented directly into the client is a huge step in the right direction.

And timing analysis too.

^ are these points still valid?

When is the darksend code being open sourced so it can be vetted by peers?
1158  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] BlackCoin (BC/BLK) | PoS | No Premine - No IPO - ONLY OFFICIAL THREAD on: May 22, 2014, 07:59:32 PM
the old thread should be reopened

With self moderation added imo. If the board won't allow it, maybe emailing a moderator could get it done for us in the back end.

That thread gets a lot of hits on google still and is top of my search results when I google for blackcoin on bitcointalk.

Yeah, not for anyone, but self moderation has been keeping this thread in order. The only two thinks we can do at this point is making sure this one grows big enough or get the old one self moderated / a link to the new one.

Just keep posting here Smiley We'll outgrow the old one soon enough!

Yeah. Maybe rat4 can shoot a quick pm to the moderator and ask for it to be made self moderated.

That said, the old topic was probably the most trolled topic in bitcointalk history Cool So I don't mind forgetting about it and just getting this topic up to 1000 pages.
1159  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] BlackCoin (BC/BLK) | PoS | No Premine - No IPO - ONLY OFFICIAL THREAD on: May 22, 2014, 07:46:46 PM
the old thread should be reopened

With self moderation added imo. If the board won't allow it, maybe emailing a moderator could get it done for us in the back end.

That thread gets a lot of hits on google still and is top of my search results when I google for blackcoin on bitcointalk.
1160  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][MRO] Monero - Anonymous Currency Based on Ring Signatures on: May 22, 2014, 07:36:39 PM
Bytecoin will also have to fix it's own issues to become NSA-proof. As it is right now, it is not. And the extremely low transaction volume in its network doesn't allow for much mixing (same applies for clones). Mixing without volume = problem. Darkcoin has a tremendous advantage in that department.

I'm afraid with that, you show you have no clue what ring signatures even are. This is actually where CryptoNote outperforms DRK by a massive margin that cannot be closed. DRK, like just about all altcoins, has a microscopic volume in the bigger financial picture - only BTC (and maybe LTC) has the consistent volume to pull off half-usable CoinJoin since it requires other participants. Ring signatures do perfect mixing with arbitrary amounts and arbitrarily low volume. And I do mean perfect. They are the theoretical limit that CoinJoin can't approach. ZKP is also perfect, but with a larger anonymity set that comes with other costs.

You also don't seem to understand 'bloating'. Because that's actually not even it - the issue is pruning. All cryptographically strong anonymity solutions cannot perform pruning because they, by nature, need outputs from far in the past. Why? Because that's precisely how you get a large anonymity set! The very reason Bitcoin and Bitcoin-clones like DRK can perform pruning is because their anonymity is of low quality and fundamentally limited to that low quality. Saying a system has '99.99% anonymity' when you don't seem to understand the concept of an anonymity set is kinda of silly, no?

There actually are (inconvenient) ways to prune ring signature or zero knowledge currencies.
But here we are in 2014 with a large Bitcoin blockchain and we're doing fine. Hardware and network improvements have outpaced the blockchain growth. If sync time is your argument against actual anonymity rather than pretend anonymity, that's rather unconvincing.

Very nice post sir.

How did you gain this deep knowledge of the protocols? If you are a coin dev if it would be great to have you on board this project.
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