Topic: [ANN] Zcoin (XZC) - Implementing ZKP privacy without trusted setup - page 173. (Read 663229 times)

We have added two new interview videos to the playlist. You can follow the link above or view them individually here:

Zcoin's ZEth: Implementing Zerocoin on Eth
https://youtu.be/nS1A3VdJFmM

Zcoin's ZEth: Optimizing Zerocoin further for ZEth
https://youtu.be/8eVk7QKxtLg

also zcoin lose value on this couple of days bleeding from altcoins

It will not, you just need to read what is written, as you the only one who keeps pushing its own truth create in parallel reality.

https://zcoin.io/mtp-open-source-miner-bounty-challenge/

MTP Open-source Miner Bounty Challenge

We are sponsoring a prize fund of USD 21,000 for the development of open source miners for the upcoming MTP protocol as implemented in Zcoin. There are three categories for the miner bounty: CPU miner, AMD GPU miner, and nVidia GPU miner.

The prizes shall be paid in Bitcoin equivalent (Bitstamp pricing) or Zcoin equivalent (Bittrex pricing) at the respective winner’s choice. The price will be determined on the time and date the winners are announced.

Eligibility
Anyone who can speak English and has reached the age of majority in their country of residence. Teams can be formed however one person shall be designated as the contact person and shall be the sole recipient of any prize money. All contestants must have a Github account.

Deadline: 9 August 2017 6.00PM GMT+8

For requirements, criteria and technical details, visit the bounty challenge blog post.

ah that's right - the slow mining start.  That's what I was missing.

According to this, yes, that's the plan: https://zcoin.io/zcoin-moving-beyond-trusted-setup-in-zerocoin/
Arbitrary inflation, if you mean invisible arbitrary inflation, is impossible in Zcoin. That's one of the major advantages compared to Zcash.

And in addition to what zcoinofficial said, I think the multiple POW algo switches had a noticeable impact on the coin emission graph, as each time the difficulty had to be adjusted from zero.

And yeah, Zcash is basically missing another half a month worth of coins because they started out like this:

Awesome!  This is just what I needed - thank you for the info

Hey no problems pretty good questions but dang all the most controversial ones

The Cointelegraph article is actually not correct that we would do it by the end of the year. Likely to spill over into 2018. You can read more about this here: https://zcoin.io/zcoin-moving-beyond-trusted-setup-in-zerocoin/. https://eprint.iacr.org/2014/764.pdf Roadmap is here: https://imgur.com/Vad2DG7

The current trusted setup for Zerocoin if broken, transactions are NOT de-anonymized. The privacy is guaranteed through the zero-knowledge proofs as the accumulator is not involved in the privacy part. The only security we need from the accumulator is that you can't claim that you have a coin in the accumulator which is actually not there. So that's just orthogonal to privacy. So yes arbitrary inflation is the issue though note that it would still be a serious issue but it will be detected in Zcoin at least.

ZCash had a slow release schedule if I'm not mistaken during its initial mining period. We also had a bug that allowed coins to be generated which was subsequently fixed. Not our finest moment for sure but you can read about it here. We also released in September 28.

Poramin Insom indeed was the dev of ZeroVert and was with the previous founder Gary (who is no longer with the project). You can read about our explanation on that incident here and you will notice that the premine was untouched.

Developers are the team, I will not go what does it mean, I only say that person, who wants  "defect" to be personalise/finger-pointed is very pathetic and miserable. Period.

bitcoin block time is 10 minutes

I hate to be "that guy" - but a birdie told me Zerocoin is working on setting up a trust-less setup (possibly slated for this fall).  Can anyone confirm this?

I like ZCash except for this part.  I'm interested in the first coin to implement the Zerocoin technology that comes up with a way to do it without the trusted setup.

Also on a different note (did some digging and couldn't find the answer).  Is the current trusted setup for Zerocoin able to de-anonymize transactions or just create arbitrary inflation (like ZCash)?

Also - it looks like ZCash and ZCoin were both released in October.  And from what I understand both have bitcoins inflation schedule.  Can someone explain to me why ZCoin has 2,500,000 coins vs ZCash's 1,600,000?  30 days between releases should only result in 144,000ish coins shouldn't it?  (50 coins X 4 per hour (every 15) X 24 hours per day X 30 days = 144,000).

(Edit:  10 min block times as poster below pointed out.  So 50 X 6 X 24 X 30 = 216,000 minted in a month.  Still seems like we have almost a 1,000,000 coin difference when there should only be 216,000 difference.  Even with the bug that released 200K extra coins - that's still 900,000 discrepancy when there should only be a 400,000ish supply discrepancy.)

And one more question.  I was around back when ZeroVert came out with ZeroCoin never being implemented and devs faded into the background.  It looks like Poramin was the dev of that supposed "first implementation of Zerocoin" years ago.  Until it turned out to be a scam (I think?).  Coin wasn't even around for a few months.

Can someone confirm that Poramin Insom was or was not the dev of that coin?  I'm not trying to FUD here or detract from others who are fine with the ZeroVert incident.  I would just like an explanation if there is one.  And if Paramin started it and abandoned it even with the 168K premine due to lack of funding or whatever.  I understand many will be ok with this.  I'd just like to gather more information for myself.

We are happy to announce that Litebit.eu, Coinex.ir and Coinexchange.io has listed Zcoin! Thank you to our community for making this possible.

Poodle, yeah I've read it. After all, you've posted that link 3 times now on the current 2 pages. (Almost as if you have some sort of agenda and any phrase like "decide for yourself" is a thin veil over the fact that you very much want to decide what other people think about this project...)

Your logic still sucks. If the coin hasn't taken off (i.e. there's insufficient buy support) and someone urgently needs money, then devs would not be able to dump 370.000 coins at all. Especially not without completely tanking the coin's value. Supply and demand is a thing. (In fact, when buying is so limited because the coin hasn't taken off yet, it can be assumed that they would barely be able to get rid of their founders' reward on the market, so any additional 370.000 coins would be completely worthless at that point.)

And if they don't need it urgently, it just makes a lot more sense to keep your reputation intact, keep developing the tech, and wait until the word spreads and Zcoin adopts a more appropriate market cap for a working zero-knowledge coin with its own development from the ground up and its own amazing dev team.
The only people who still don't want that to happen are those like you, who apparently missed the boat at lower prices and now want to FUD like crazy to try and get another low entry point.

Did you read my post https://www.reddit.com/r/CryptoCurrency/comments/6379u9/zcoin_bug_a_deliberate_inside_job/?utm_content=title&utm_medium=user&utm_source=reddit&utm_name=frontpage ?

I address everything you raise. You might be right, I might be wrong, but I think anyone who has doubts about who did the hack should read my post and decide for themselves.

Same as Bitcoin

Interview with Tadhg Riordan on Zcoin's Ethereum Mixer.

What is the inflation rate for ZCoin?

Yes, the Zcoin devs would totally engineer a weakness that results in coins being created out of thin air, with all the great PR this entails, when it's open and official that 20% of mined coins from the first 4 years go to a dev fund anyways. Flawless logic there, mate.

And you're still ignoring literally everything that has been clarified about MTP in order to push your "it's broken!!!11111" narrative. Which is false. (Just like you ignore all links to the wallet and continue claiming that "there's no working wallet" lol)

Why don't you just give up and go back to your Zencash, which you seem to like a lot better (according to your post history)?

Look Reuben, you can try and selectively quote out of context from the dozens and dozens of posts I have made on Zcoin, I'm cool with that. People can search my postings, I've been consistent - in fact, for example my comments on incentivised nodes and Coinomi that you mentioned were based on what Zcoinofficial told everyone - and with nodes at least it turned out not to be exactly, well, true. I struggle to see how you impugn my credibility when I post something optimistic in reliance of Zcoin's not perfectly forthright public statements. I do think incentivised nodes might be good - but they're miles off because you spent all this time with MTP which I advised against and has turned out to be a turkey.

And I apologised for mentioning you by name in my Reddit post about the Zcoin hack, I didn't "take it back". I also didn't delete your post, I deleted my post which mentioned you by name, which I thought was unfair hence why I removed it. I certainly think it's probable that the hack was an inside job by one or more devs, I just think I was utterly wrong to mention your name, because I just think it was one or more Zcoin devs, no idea who. https://www.reddit.com/r/CryptoCurrency/comments/6379u9/zcoin_bug_a_deliberate_inside_job/?utm_content=title&utm_medium=user&utm_source=reddit&utm_name=frontpage

I can't spend my whole day here arguing. I'm just expressing my genuine belief. I am not even saying that Zcoin has no future, I'm saying that this news on MTP is massive, will massively weigh on prices, and is a very big setback and adds to reputational concerns around Zcoin.