[ANN] Firo (FIRO) - Implementing ZKP privacy without trusted setup

[volyova]

I downloaded the Linux wallet tried all the functions, and didn't have any problems, the only thing that I've noticed is if the computer shuts down improperly (eg power outage or wife holds the power button to get the kids off it) when rebooting the function to start the wallet automatically it runs in the background and in order to use it I'd have to kill the process first and restart the wallet. I'd have to say even with this small problem the wallet is always synced when I do restart it. Let me recap that all functions worked including mint zerocoin!!!

I, also have had zero probs with the wallet. Ignore the trolls!

[1714988717]

1714988717

[1714988717]

1714988717

[1714988717]

1714988717

[Hank3]

No probs here

[awill333]

Yes of course say 'troll' and ignore when somebody has a problem of course it is the individuals fault because ya'll have had "no problems" that thing must work _PERFECTLY_ right? so i guess you have all compiled it and observed the results to? All being those who wish to attempt to call my a liar or wrong or discredit my statements. I am simply here to let you folks know that the mintzerocoin function lost my 50 coins and you call me wrong? That is absurdly foolish. Thats ok I am done posting here because team Zcoin has failed to provide any sort of response as you can see the silence means they dont know sh*t about what is going on either.

of course the tiny brain will not process what has been presented I have posted for those with any sort of perceptive and reasoning abilities so they can protect themselves.

a f*ckin typo error lost all those coins and you think that I am WRONG? haha if you think that ya'll crazy. This shows very sloppy coding and no audit and I am sure that nobody who has invested has actually inspected the code they just think they will get rich from a tool that never delivered what was promised, a functioning mint zero coin transaction. and so you can obsess with idiotic mtp all you wish to oneday figure out I am right. Have fun guys you wont hear from me again.

PS- I dumped my 685 coins last night and I am ripping all of the zcoin modules out of the software I am creating. I would challenge anybody who knows anything about programming to compile that code and inspect it and then tell me there is no chance that could have happened to me. It's on the blockchain, I have all of the private keys, wallet, proof, etc. Yet there is nobody here even attempting to help me? Where should I write to? The FCC? haha that's the funny thing about crytos NO ACCOUNTABILITY. so nobody cares because they dont want there coins to lose value. I sold all of mine so I don't care at all. And to the fools who think that is a wise choice you will learn the hard way. To any person of intelligence I challenge you to inspect that code yourself and see what a joke it is. Ok thats enough I am over wasting my time with you folks.

[zcoinofficial]

I understand your frustration awill333.

We are trying to replicate your problem here. Trying to actually get an abbreviated version of your problem for the devs to look at cause they're right now furiously finishing stuff up but I'm seeing if I can get Leoreinaux to help out.

[playingpoodles]

I'm mostly out of Zcoin so I don't take too much interest these days, might have lost somewhere in the region of $200, but overall feel very lucky not to have lost substantially more. I said months ago to devs to focus on working wallet over and above MTP, I suppose the failure of MTP wasn't foreseeable then, but nonetheless it made no sense to me to spend dev time on MTP when people were losing lots of Zcoin because of the wallet.

In my case, with the old wallet I lost one or two coins. I was facing losing 50 which made me nervous, but somehow the transaction went through and it ended up on Bittrex - but there was lots of luck in that, the 2 I lost never returned. That was the old wallet, and it was the first time I went WTF with Zcoin.

Read the last 50 pages of this forum. People certainly HAVE had lots of problems with the "new" wallet. Certainly not safe in my opinion. I haven't heard anyone whose had a problem with Coinomi mobile wallet though - so if you're sure you want to be in Zcoin, and don't want it on Bittrex, Coinomi might be the only safe option (but test if first, with a coin or two). Personally, I see risk of wallet failure much higher than risk of Bittrex defulcating and stealing our Zcoin. I personally couldn't be bothered to hold off exchange for my small holding.

Just to reiterate, in case my previous posts were not seen by the reader, I had a problem with zcoin the other day. I was testing mint zero coin function from the GUI wallet, I minted two 50 coin increments of zerocoins. One of the the procedures worked fine. I have included the data from both of the mint zerocoin transactions because I am not entirely sure which one was received and which one was not. It is all a bit confusing.. However, I am no idiot and actually I was in the moment of doing testing for software that I am devleloping that was to include zcoin support.

I wrote a post on this forum explaining my problem and instead of receiving any help I was simply directed to private communications and then re-directed to "slack" to talk to "the developer". I did create an account there but now I am having problems logging into it which is also quite infuriating. Did I mention that over the course of loading and reloading and reloading and reloading the blockchain from a non corrupt and working-just-fine wallet I have used well over 30 hours of my personal time. Time which I could have been working on my own projects implementing coins that function as promised. This wallet is nothing more than a piece of beta test software that was unleashed on the public so we could be "guinea pigs". After having a problem logging into slack I have become quite infuriated about this whole situation. I have wasted so much of my time on it now without any consulting with "the developer", that my time is more valuable to me than the stupid 50 zcoins that were lost. That doesnt amount to much more than $300 while if I was being paid even a pathetic low wage for my applied efforts regarding this particular problem it would be well over $1000. (at an insultingly low / hr wage btw).

I am not getting paid to develop zcoin, nor am I getting paid to lose my money and help the "developer" (who is claiming a founders fee of 20%) to make his code better. The facts are simple, I compiled this software from the source code myself as I do with all of the other wallets that I have been testing. The result was a _horrendous_ amount of "warnings" I am surprised it even compiled! They were warnings from broken libzerocoin not my fault. the other daemons I have compiled since was zero warnings. It is no surprise the coin disappeared, I should have realized the score when I compiled.

Why am I writing this text now? There are a few reasons I am wasting even more of my time and haven't quite written this off as a loss yet. One is in hopes somebody can provide me some INFORMATION as to how to GET MY COINS BACK because nobody has bother to do so. I have not had a single question answered, only a redirect to another confounded situation. I believe the answer to my statement of "not agreeing to move the conversation behind close doors" was something along the lines of "we may require your private keys" . And just what makes you think that I trust you, "the developer", or SLACKs unsecured messaging system with my PRIVATE KEYS? Are you all insane or do you think we are all just so stupid we will use software that has 50% FAIL when minting zero coins. Yes, I minted 4 parcels of zero coins two of them were 50xzc parcels and the other two were 1xzc portion. 2/4 (50%) mintings were lost. This is not my fault the wallet is bullsh*t.

I would like to take a moment right now to publically apologize to PLAYING POODLES because I publically talked rudely to him when he was simply expressing the dissent of the slipshod modality being applied by these "developers" and using our loss as their gain. That software never should have been released on the public and there is NO WAY it should have a version number as high as it is. That is EXTREME BETA software AT BEST. It should show up with WARNINGS THAT YOUR COIN MAY VAPORIZE and if so YOU WONT RECEIVE HELP WHEN YOU ASK DIRECTLY FOR IT.
Prove me wrong by answering my questions. WHERE THE F*CK ARE MY ZCOINS? This is more of a public service at this point than an expectation of getting my coins back. I refuse to transmit private keys over unsecured systems and I refuse to trasmit same to parties I DO NOT know OR TRUST.

I was all about Zcoin and I sold all of the bytecoin and every coin that I had to stock up on Zcoin exclusively. I started writing software for zcoins implementation to real world function. I wont mention what I am selling all of my zcoin right now to trade so nobody thinks I am here for the selfish interest. After seeing the code (I am now using) for the daemon compile without any warnings, code that is far more complex, I have much more faith that that software will not lose my coins. AND THEY WARN YOU WHEN THE WALLET IS BETA.

so this is a word to the wise. I hope if you plan on investing in zcoin you try MULTIPLE MINT ZERO COIN TRANSACTIONS because the developers DID NOT SUFFICIENTLY TEST THE MOST IMPERATIVE FUNCTION OF THE WHOLE SYSTEM !!!!

Yes that is severe and all capitals but if you think I am watching clowns throw away my money because they wrote sh*tty code and not complaining about it, that is just crazy.


=====================================================================================
---wallet info:

Status: 1401 confirmations
Date: 7/20/17 13:42
Debit: -50.00 XZC
Transaction fee: -0.01 XZC
Net amount: -50.01 XZC
Transaction ID: fe49fc5a9dd8595b4ed92722ab1e5a98e2b00b0198c17831e863eb96b6e74d63

---cryptoid.info:

Details for Transaction
Hash   fe49fc5a9dd8595b4ed92722ab1e5a98e2b00b0198c17831e863eb96b6e74d63
Block Height   44089 (1401 confirmations)
Block Date/Time   2017-07-20 20:48:47
Total Output   56.51026806 XZC
Fees   0.01 XZC

Inputs
Index   Previous output   Address   Amount
0   ec55d5424a451705...:1   a6ye1FUJAeXjVuF5E6gLq5yzuR7ENxw2D3   6.54026806 XZC
1   cf662a5d8a63e5b2...:1   aJHDQJqCEEAN9Yj7XrYFKVznu5MFzpviCm   49.98 XZC
Outputs
Index   Redeemed in   Address   Amount
0   Anonymous   MARKER19fc0192548d1b4d71ec456c3fbdf7bf90fd9c6f884bcc74633741e7ba8392cfdd2fb6c80 924e9f1bfcafdf7dd118c283f3c35ce9f36f8ab171d55df8d0394aa988e5cca333e8849dc5a0103 503c6a4fea181a3abd5bd940bf41be14998136f2d7834182b3dbd500e180d59b837ee047e14305a 2f4addc02704c40c4dbebdb29   50.0 XZC
1   Not yet redeemed   a5ELK3GdkEFuzwsrnAfQYKzHUSbEQaTaes   6.51026806 XZC

=====================================================================================

---wallet info:

Status: 1391 confirmations
Date: 7/20/17 16:59
Debit: -50.00 XZC
Transaction fee: -0.01 XZC
Net amount: -50.01 XZC
Transaction ID: 1e285701633d76afd1f0167332b7ade372ecf71e1cdfa1e27345d3e19df6fc9b

---cryptoid.info:

Details for Transaction
Hash   1e285701633d76afd1f0167332b7ade372ecf71e1cdfa1e27345d3e19df6fc9b
Block Height   44099 (1391 confirmations)
Block Date/Time   2017-07-21 00:24:26
Total Output   57.9754676 XZC
Fees   0.01 XZC

Inputs
Index   Previous output   Address   Amount
0   ecec6376b7dc4553...:1   aJHDQJqCEEAN9Yj7XrYFKVznu5MFzpviCm   57.9854676 XZC
Outputs
Index   Redeemed in   Address   Amount
0   f1359b7446538a6a...   a8NsNQRox1fa3cEs8pKePq9nRNbTps5sP6   7.9754676 XZC
1   Anonymous   MARKER4b7ae75aafd08f3409576e92f6b69cb32e5365484a25156d8833b242b315c3d0bb6b980bf b482dd07ab958786ddc698e2f48c5fe7ca4c7be12aa058003e41c563e3c545cd5d47602b297b680 cb546115220e300d3d1081ae70759375426feb5b3b4d9b71ce70215ac036263a3e4fd61421fdec7 1d1afe1182235817a0372268800   50.0 XZC

=====================================================================================

Address of supposed zcoin receive, present in my wallet, generated as a result of mintzerocoin function. never received anything:

aAXQzvBL56EzkGngZgeQxcBGv9bowY2P5k

wallet info for the address of supposed transaction:
Status: 0/unconfirmed
Date: 7/20/17 16:45
Source: Generated
Credit: 50.00 XZC
Net amount: +50.00 XZC
Transaction ID: b70404e9d07a13f1816e7ad723c31b04d810c998ff3d6571f737909ab25d7281

=====================================================================================

By the way all of these texts were copied out of my wallet and block explorer today, the 30th of July. As you can see the above address aAXQzvBL56EzkGngZgeQxcBGv9bowY2P5k never received ANYTHING although the wallet claims the coins were sent there it was never verified by the network.

So yes expect to be criticized publically when your wallet is eating peoples coins for breakfast. I am deeply insulted by this event. Not because of my measly loss but because of the potential loss for any and all customers who I would encourage to use the software that was being written who may lose an infinity amount of coins minting zcoin with only 50% success. What possible justification can you have to release a product like that on the public other than blatant lies and promises that it "does work" ?

I expect any data to be presented about this subject to be presented publically. THE PUBLIC DESERVES TO KNOW WHY THOSE COINS WERE VAPORIZED AND IF YOU FIX THE PROBLEM OR NOT.
No, I will not give my private keys to any address. If you have advice for troubleshooting (WHICH I ALREADY REQUESTED), you may provide it in knowing that I am a highly skilled and technically oriented person more than capable of troubleshooting this problem if you have any information that I do not currently have such as where the f* is my money.

[maxuscz]

I'm mostly out of Zcoin so I don't take too much interest these days, might have lost somewhere in the region of $200, but overall feel very lucky not to have lost substantially more. I said months ago to devs to focus on working wallet over and above MTP, I suppose the failure of MTP wasn't foreseeable then, but nonetheless it made no sense to me to spend dev time on MTP when people were losing lots of Zcoin because of the wallet.

In my case, with the old wallet I lost one or two coins. I was facing losing 50 which made me nervous, but somehow the transaction went through and it ended up on Bittrex - but there was lots of luck in that, the 2 I lost never returned. That was the old wallet, and it was the first time I went WTF with Zcoin.

Read the last 50 pages of this forum. People certainly HAVE had lots of problems with the "new" wallet. Certainly not safe in my opinion. I haven't heard anyone whose had a problem with Coinomi mobile wallet though - so if you're sure you want to be in Zcoin, and don't want it on Bittrex, Coinomi might be the only safe option (but test if first, with a coin or two). Personally, I see risk of wallet failure much higher than risk of Bittrex defulcating and stealing our Zcoin. I personally couldn't be bothered to hold off exchange for my small holding.

Hmmm. Another one who lost coins.
I need read all posts befor I make own conclusion.
but
Zcoin - new minig algo dosnt help you if it possible to lost one coin.
Cose one coin = 100 coins = 1000 coins wich may be lost , damn
it is about trust

[zcoinofficial]

50 xzc mints are a particular unpopular denomination I believe there's a mechanism in there that prevents you from doing spends until more mints fills up in that 50 xzc accumulator to improve your anonymity but I'll need to double check with the devs. Remember the anonymity is within the mint denomination.

When I encounter this notification when trying to spend,
"it has to have at least two mint coins with at least 7 confirmation in order to spend a coin"

I usually resolve this by doing another mint of the same denomination and then waiting 7 confirms for that which allows me to redeem my earlier one. As long as the mint still shows in your wallet, there's no 'lost' money unless the mint is completely not appearing in your wallet.

[maxuscz]

zcoinofficial
please tell me about algo changes on 47500 block
I ask about fork but nobody tell me
How you will change algo without fork?

[Jack Russell]

I've also lost coins with the Mint & Spend function. I tried one coin and 100 coin tried to redeem (spend) over a month ago

Status: 0/unconfirmed
Date: 30/06/17 06:48
Source: Generated
Credit: 100.00 XZC
Net amount: +100.00 XZC
Transaction ID: d1ffec59eac616258a3330f8c174f9ebd1654f262a6bfecc6f5aa81b15320ce2

Status: 0/unconfirmed
Date: 29/06/17 21:11
Source: Generated
Credit: 1.00 XZC
Net amount: +1.00 XZC
Transaction ID: 41cbee413dc6e1b9c928330c6a6c92188a7fcedfe5a1be777b67a64edb4132f2

After that I moved wallet.dat file to another pc. I didn't realize it had no confirmations so lost some more coins on that one. They also show as zero confirmations, but on the first pc there is no trace of them even being redeemed.

[zcoinofficial]

I've also lost coins with the Mint & Spend function. I tried one coin and 100 coin tried to redeem (spend) over a month ago

Status: 0/unconfirmed
Date: 30/06/17 06:48
Source: Generated
Credit: 100.00 XZC
Net amount: +100.00 XZC
Transaction ID: d1ffec59eac616258a3330f8c174f9ebd1654f262a6bfecc6f5aa81b15320ce2

Status: 0/unconfirmed
Date: 29/06/17 21:11
Source: Generated
Credit: 1.00 XZC
Net amount: +1.00 XZC
Transaction ID: 41cbee413dc6e1b9c928330c6a6c92188a7fcedfe5a1be777b67a64edb4132f2

After that I moved wallet.dat file to another pc. I didn't realize it had no confirmations so lost some more coins on that one. They also show as zero confirmations, but on the first pc there is no trace of them even being redeemed.

Hi Jack,

when you moved the wallet does it still appear in your Mint transactions? If it appears, it isn't lost but may not have had additional people using the accumulators during that time.
Both transaction IDs don't seem to appear on the blockchain? What version were you using? 0.8.7.8?

[Jack Russell]

Hi Jack,

when you moved the wallet does it still appear in your Mint transactions? If it appears, it isn't lost but may not have had additional people using the accumulators during that time.
Both transaction IDs don't seem to appear on the blockchain? What version were you using? 0.8.7.8?

Yes, and I have replied to your PM ty.

[tomsmith26]

It's interesting to see this price I have bought some zcoins during the past week.
Perhaps this was a final chance to get very cheap coins and I think there will be a big pump in next weeks .

[AngusCanine]

It's interesting to see this price I have bought some zcoins during the past week.
Perhaps this was a final chance to get very cheap coins and I think there will be a big pump in next weeks .

why because you bought in? A little more info might be useful.

[hexpool.com]

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Code:

-a lyra2 -o stratum+tcp://stratum-eu1-hexpool.com:4433 -u WALLET -p c=XZC

Difficulty
Use d=? in your password to select a different difficulty.

Code:

-a lyra2 -o stratum+tcp://stratum-eu1-hexpool.com:4433 -u WALLET -p c=XZC,d=1

Explorer
https://hexpool.com/explorer/XZC

[bamsterdam]

Mining question : I see a significant amount of mining power just looking at Miningpoolhub's stats page.

I am wondering what is true re: this ( IMHO ) mining "anomaly"...... the hashpower required to put numbers in the top 15 is fairly large....

Whichever equipment is being used to produce it, calculations suggest those committing such number to Zcoin could make significantly more income

mining a few other coins, nets, algos.

>> Are these miner speculating..... dedicated.... Have advantaged software for mining...?

This has been bothering me for awhile now..... I have a small "farm" and could not see profits, at this time, mining Zcoin unless I was speculating on the future....

Am I missing some info here??  

All replies welcome....thanks  

total speculation, Zcoin undervalued by a long way, look at Zcash, monero, Dash, really it's the only coin offering zero knowledge with an audit able supply

But if they mine pure for speculation why not mine a other more profitable coin and trade them back for more zcoin? Oh well maybe it doenst matter at all since new minging algo is arround the corner but still is a bit strange

Indeed, we ourselves are surprised at the hash rate. Not sure how many other 'CPU-friendly' coins are out there tho.

Oh well once upgraded to the new algo problem will solve itself. When we change algo will there be a hard fork? I think its necessary right?

[Prima Primat]

...

As far as I know, it's not actually possible for Zcoin/zerocoin to 'vaporize' like you describe it. I tested the minting and spending extensively a while ago and yes, it has some quirks like that "has to have at least two mint coins" error message and the fact that there's currently an artificial limit of 1 spend transaction per block in place (to deal with performance impact on pools because Znodes aren't implemented yet), meaning that it can take a while for a spend to get confirmed and that transactions can be 'floating' in mempool for an unreasonable amount of time... But aside from that, whatever you own, you own. (As long as you don't mess with your wallet.dat...)

So I don't know what exactly happened in your case, but if I were you I'd just take the help zcoinofficial offered you instead of writing rant after rant, which accomplishes nothing.

[cyberspacemonkey]

Mining question : I see a significant amount of mining power just looking at Miningpoolhub's stats page.

I am wondering what is true re: this ( IMHO ) mining "anomaly"...... the hashpower required to put numbers in the top 15 is fairly large....

Whichever equipment is being used to produce it, calculations suggest those committing such number to Zcoin could make significantly more income

mining a few other coins, nets, algos.

>> Are these miner speculating..... dedicated.... Have advantaged software for mining...?

This has been bothering me for awhile now..... I have a small "farm" and could not see profits, at this time, mining Zcoin unless I was speculating on the future....

Am I missing some info here??  

All replies welcome....thanks  

total speculation, Zcoin undervalued by a long way, look at Zcash, monero, Dash, really it's the only coin offering zero knowledge with an audit able supply

But if they mine pure for speculation why not mine a other more profitable coin and trade them back for more zcoin? Oh well maybe it doenst matter at all since new minging algo is arround the corner but still is a bit strange

Indeed, we ourselves are surprised at the hash rate. Not sure how many other 'CPU-friendly' coins are out there tho.

Oh well once upgraded to the new algo problem will solve itself. When we change algo will there be a hard fork? I think its necessary right?

How do you think it would "solve" itself after the upgrade? Do you think people running bots are going to simply quit mining it?

[bamsterdam]

I thought one of the features of mtp algo was that it would become much less feasable for botnets to mine zcoin according to the OP:

MTP was created as a way to remedy the disparity between ordinary users and adversaries/cheaters where the latter could use botnets, GPU, FPGA and ASICS to gain a significant advantage and mount a cheaper attack. The basic concept is that it should establish the same price/cost for a single computation unit on all platforms. This means that no single device should gain a significant advantage over another for the same price hence promoting egalitarian computing. With egalitarian computing, attackers would need to spend the same amount as ordinary users for equivalent ‘hashing’ power. As attackers need to usesimilar hardware as ordinary users, automated large-scale attacks become no longer possible. This combined with the fact hashing in MTP is highly memory intensive, users infected by trojans to participate in botnets would experience noticeable performance degradation and therefore more likely to suspect something is amiss

[FFI2013]

Will switching to MTP make Zcoin a cpu only mining I'm just wondering I just started looking at Zcoin and look very interesting to me

[hexpool.com]

We've dropped the fee at hexpool.com to 0.1%.