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

[mjosephs]

Final MTP patch is in place.

Where?  Last commit here

https://github.com/zcoinofficial/zcoin/commits/merge-mtp

is 10 days ago.

Still waiting for this:

Poramin to release one more minor patch.

You may think it's minor, but any change that affects the consensus rules (and that includes every last detail of the PoW) is a big deal.

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[ZenFr]

Quick Development Updates

From our testing, Zcoin's updated Bitcoin core 0.13 sync speed from scratch is about 6 hours which is a huge improvement. Testing Zerocoin functions at the moment.

Dev team decided that despite the benefits of 0.13, MTP migration will happen first before core upgrade improvements are deployed. The same goes with our libzerocoin upgrades and fixes. This is because MTP has a totally new block header structure so migration from the old block header structure needs some planning and we want to make sure that happens smoothly first before deploying too many fundamental changes especially one as big as Bitcoin core and libzerocoin. Migration to 0.13 will then open the way for deployment of Znodes.

Final MTP patch is in place. Will announce separate MTP bounty (not the same as a MTP miner dev competition) in the next few days to encourage scrutiny into MTP.

Thank you for these good news :-).
Impatient for the final MTP version and Znodes.
Will Bittrex doing the wallet upgrade safetely or it is better to withdraw my ZCoin to my desktop wallet ?

[zcoinofficial]

Where?  Last commit here

https://github.com/zcoinofficial/zcoin/commits/merge-mtp

is 10 days ago.

https://github.com/zcoinofficial/zcoin/commit/0d1f1125050be9dd0528c56954efc113e211f66c

Don't look at merge-mtp that is merging it back to master but doesn't affect the MTP coding.

[cyberspacemonkey]

I can't understand from where are coming these huge amount of hashrate? XZC net hashrate grows very quickly. At the same time, profitability is very low, about 4 times lower than on most other altcoins.
So, this is a botnet, or what is it ??  
77Gh net hashrate it's about 65K pcs gtx 1060 GPUs. Seriously??? and all these miners still mining this coin, while other altcoins offering 3x, 4x higher profit?? smells fishly

Two biggest pools have only ~ 23Gh hashrate! Where the rest net hashrate is sitting? Seems what the resh hashrate is HIGHLY centralised by SOLO miners (botnets)

dude who have server with power 65K GPU? I dont believe someone can get that even from google cloud, aws or azure  without not getting attention from them, it's possible if ASIC, but please someone who have knowledge in that subject please enlgihten us whether it can be ASIC or something else

This is quite alarming although I don't think an ASIC is possible since the algo is very memory intensive, I might be wrong though.

[LBX]

Can anyone support me
a28Nrpc14aB9FG7H5Ho1bef33GkgWiQKrN
Thanks

[Coin++]

Hi dev,

Your coin is superb, it's clear for me and all the technical community.
But his price is very low compared to som other coins.
ZCoin should be in the TOP 5 of the crypto world.

When will you do marketing operations to promote ZCoin ?
Your work is fabulous but the technical community is not enough to push ZCoin "to the moon".

[rowenta01]

Hi dev,

Your coin is superb, it's clear for me and all the technical community.
But his price is very low compared to som other coins.
ZCoin should be in the TOP 5 of the crypto world.

When will you do marketing operations to promote ZCoin ?
Your work is fabulous but the technical community is not enough to push ZCoin "to the moon".

I agree, Zcoin deserves much better.

Zcoin is not recognized at its true value.

If marketing was of the same quality as technical development, Zcoin would be much higher!

I hope the Zcoin team is aware of this!

[galz2017]

hi all!
does the wallet generator a scam ?
i saw it and i'm not sure if i can trust this site.
i hope someone here knows
thanks
https://paper.zcoin.rocks/

[Prima Primat]

hi all!
does the wallet generator a scam ?
i saw it and i'm not sure if i can trust this site.
i hope someone here knows
thanks
https://paper.zcoin.rocks/

Zcoin.rocks is a fan-made page. It was created some time last year and I think it's no longer maintained (hence the dead links)
You can still use it as Zcoin's keys are still the same (and all a paper wallet generator does is generate a pair of private/public keys), but a newer generator can be found at http://paper.zcoin.ga/ (also not official, and currently without HTTPS, so use at your own risk)

[bamsterdam]

I can't understand from where are coming these huge amount of hashrate? XZC net hashrate grows very quickly. At the same time, profitability is very low, about 4 times lower than on most other altcoins.
So, this is a botnet, or what is it ??  
77Gh net hashrate it's about 65K pcs gtx 1060 GPUs. Seriously??? and all these miners still mining this coin, while other altcoins offering 3x, 4x higher profit?? smells fishly

Two biggest pools have only ~ 23Gh hashrate! Where the rest net hashrate is sitting? Seems what the resh hashrate is HIGHLY centralised by SOLO miners (botnets)

dude who have server with power 65K GPU? I dont believe someone can get that even from google cloud, aws or azure  without not getting attention from them, it's possible if ASIC, but please someone who have knowledge in that subject please enlgihten us whether it can be ASIC or something else

This is quite alarming although I don't think an ASIC is possible since the algo is very memory intensive, I might be wrong though.

Dev would you be so kind to give your opinion about this matter? I thought the new algo where supposed to make it not profitable for botnets to mine zcoin anymore and im not aware of any asics for zcoin seems highly unlikely, so how can this be? What do you think about this enormous hashrate?

[CjMapope]

I can't understand from where are coming these huge amount of hashrate? XZC net hashrate grows very quickly. At the same time, profitability is very low, about 4 times lower than on most other altcoins.
So, this is a botnet, or what is it ??  
77Gh net hashrate it's about 65K pcs gtx 1060 GPUs. Seriously??? and all these miners still mining this coin, while other altcoins offering 3x, 4x higher profit?? smells fishly

Two biggest pools have only ~ 23Gh hashrate! Where the rest net hashrate is sitting? Seems what the resh hashrate is HIGHLY centralised by SOLO miners (botnets)

dude who have server with power 65K GPU? I dont believe someone can get that even from google cloud, aws or azure  without not getting attention from them, it's possible if ASIC, but please someone who have knowledge in that subject please enlgihten us whether it can be ASIC or something else

This is quite alarming although I don't think an ASIC is possible since the algo is very memory intensive, I might be wrong though.

Dev would you be so kind to give your opinion about this matter? I thought the new algo where supposed to make it not profitable for botnets to mine zcoin anymore and im not aware of any asics for zcoin seems highly unlikely, so how can this be? What do you think about this enormous hashrate?

lol, botnets were ALWAYS a part of this coin, remember the private investors who made this possible ? they wanted "aws cloud mining" to be #1 from the start, noone was mad they need to please investors, it's understandable.

ASICs? um no. look at the code ya nub, way too mem intensive for a TODAY asic ;p

[zcoinofficial]

Dev would you be so kind to give your opinion about this matter? I thought the new algo where supposed to make it not profitable for botnets to mine zcoin anymore and im not aware of any asics for zcoin seems highly unlikely, so how can this be? What do you think about this enormous hashrate?

The Lyra2z algorithm was meant to make it much less profitable for botnets to mine Zcoin since GPUs were viable and had some advantage over CPU. I don't think it has a lot of memory though especially when compared to the original algorithm.
Blake256 first round and Lyra2 (timecost = 8, r=c=8). Remember this was a placeholder algorithm.

Given that this is a transition algorithm that is due to be phased out when MTP comes along, it is pretty unlikely that an ASIC has been developed and plus we're a new coin in a rapid state of change.

Previously we were made aware of a sizeable private Nvidia GPU farm that was mining Zcoin since the Lyra2z switch on their own private pool but we really don't know if it's them.

The last I tried mining Zcoin with my Nvidias, it was less profitable than other coins but not THAT much so to make it unthinkable.

[zcoinofficial]

Bounty for MTP Audit ($10,000) and MTP Implementation ($2,500)



We are announcing bounties for MTP audit and MTP implementation.

MTP (Merkle Tree Proof) is a new proof of work algorithm that was presented at the USENIX Security Symposium 2016 and has attracted substantial attention from the cryptocurrency and academic community. To further encourage research and scrutiny into MTP, we are sponsoring two bounties.

MTP Audit Bounty: 10,000 USD Total
MTP Implementation Bounty : 2,500 USD TOTAL

Deadline of submission is 30 September 2017 but remember it is better to submit early as duplicates are not rewarded.

Further information about rules and bounty distribution can be found in our blog post:
https://zcoin.io/bounty-mtp-audit-10000-mtp-implementation-2500/

[kekmaster]

Do you guys seek German translation? Seek no further. Ich bin euer Mann! (I am your guy)

[awill333]

attn zerocoin team:

I am in the midst of testing zcoin rpc software and zcoin-qt wallet on ubuntu 16. this communication postponed for 24 hours until I was (mostly) sure there is some sort of problem.

PLEASE HELP:

I have 100 XZC in limbo right now, a result of testing the zerocoin function. there were two portions of 50 and stupidly enough I committed to the second portion before the first was finished. Hopefully this folly can help with development and to be honest it is difficult not to be extremely upset about this. I know this is 'experimental software' but those coins will be worth most likely over $100K in just a few years. So why don't we attempt to fix this?

Here is the sequence of the problem. The goal was to'zero' two 50x portions of coins for a total of 100 coins and send each portion to a new wallet in another user account.

transfer 1:
-----------
Status: 0/unconfirmed
Date: 7/20/17 16:45
Source: Generated
Credit: 50.00 XZC
Net amount: +50.00 XZC
Transaction ID: b70404e9d07a13f1816e7ad723c31b04d810c998ff3d6571f737909ab25d7281
----------
These coins should have been confirmed by now after 24 hours right? Not sure how long it requires to verify zerocoin. I did mint the 50 coins just fine and when they were sent to my wallet the transaction basically disappeared from the network. In my dialouge it told me it had been broadcast to over 45 nodes but after over 16 hours I am giving up that they will confirm it. I restarted the wallet and the above "cut-paste" is from the wallet restart. Now is says it hasn't been broadcast at all (there is no "number of nodes who saw it" anymore). How do I fix this? The coins have been in limbo too long, thats too much damn money and it wasn't my mistake!!

SECOND MINTING OPERATION: I now have a minted 50 coin chunk in the "zerocoin" tab on the qt wallet. When I attempt to liberate this chunk into xzc tokens I received this message from the GUI and sometimes it alternates with another one:
---
You cannot spend zerocoin because it has to have at least two mint coins with at least 7 confirmation in order to spend a coin
---
Error message from debug console:

15:52:14
spendzerocoin 50
15:52:14
at least two mint coins are using calculating accumulator (code -4)
----


I did receive the first error message yesterday when the first 50 coins were minted (from the qt gui), note: I did a retry to send the same 50 coins just seconds later from the debug console. It claimed success and provided the above (top of message from first transfer) transaction ID. however, no coins were ever confirmed.

OF COURSE I AM CONCERNED ABOUT "-RESCAN" BECAUSE WHEN I DID THAT I LOST THE (1) XZC THAT WAS IN THE MINT (this is a separate transaction, the other day when I first tested xzc) WITH NO WAY TO RECOVER. RIGHT NOW THERE ARE FIFTY XZC IN THE MINT AND I AM CONCERNED THAT THEY WILL DISAPPEAR ALSO!

My blockchain is current. I have tried everything from the sparse information I have been able to glean from the web. I checked all the sites. Absurdly enough, when I searched for "You cannot spend zerocoin because it has to have at least two mint coins with at least 7 confirmation in order to spend a coin" in google I was shown the imposters "zoin" page here on bitcointalk and they mentioned this "bug" in ya'lls code.

I am a big fan and supporter of Zcoin I hope nobody gets the wrong impression! It is quite simple that 100 XZC is most of my savings (yes I put my savings in experimental software, jeez) .. Because I have a strong support for this project and I wish it to work.

------

If I am unclear about anything, let me know. I have all the data but the trans ID isn't showing up on the blockchain from the first spend mint zerocoin transaction. I don't know if backing up that code sequence that equates to the second 50 xzc that was burnt from my wallet would do any good. I saw no option to recover or restore from that code.

IF I AM MISSING SOMETHING (other than 100 XZC currently) I WOULD LOVE TO HEAR IT !

thank you for your time.

[zcoinofficial]

If I am unclear about anything, let me know. I have all the data but the trans ID isn't showing up on the blockchain from the first spend mint zerocoin transaction. I don't know if backing up that code sequence that equates to the second 50 xzc that was burnt from my wallet would do any good. I saw no option to recover or restore from that code.

IF I AM MISSING SOMETHING (other than 100 XZC currently) I WOULD LOVE TO HEAR IT !

thank you for your time.

Will pm you! Are you on Slack?

[dasgardo87]

I can't understand from where are coming these huge amount of hashrate? XZC net hashrate grows very quickly. At the same time, profitability is very low, about 4 times lower than on most other altcoins.
So, this is a botnet, or what is it ??  
77Gh net hashrate it's about 65K pcs gtx 1060 GPUs. Seriously??? and all these miners still mining this coin, while other altcoins offering 3x, 4x higher profit?? smells fishly

Two biggest pools have only ~ 23Gh hashrate! Where the rest net hashrate is sitting? Seems what the resh hashrate is HIGHLY centralised by SOLO miners (botnets)

dude who have server with power 65K GPU? I dont believe someone can get that even from google cloud, aws or azure  without not getting attention from them, it's possible if ASIC, but please someone who have knowledge in that subject please enlgihten us whether it can be ASIC or something else

This is quite alarming although I don't think an ASIC is possible since the algo is very memory intensive, I might be wrong though.

Dev would you be so kind to give your opinion about this matter? I thought the new algo where supposed to make it not profitable for botnets to mine zcoin anymore and im not aware of any asics for zcoin seems highly unlikely, so how can this be? What do you think about this enormous hashrate?

lol, botnets were ALWAYS a part of this coin, remember the private investors who made this possible ? they wanted "aws cloud mining" to be #1 from the start, noone was mad they need to please investors, it's understandable.

ASICs? um no. look at the code ya nub, way too mem intensive for a TODAY asic ;p

haha dude do you think it's possible to do "aws cloud mining" with hash power 65K GPU (not cpu core, which is  if translate to cpu maybe around  195K  ?? )?? yes it might be if using legal ways , but their outcome will more bigger than their profit a.k.a more cheap to buy zcoin than to mining using  cloud mining

[bamsterdam]

I can't understand from where are coming these huge amount of hashrate? XZC net hashrate grows very quickly. At the same time, profitability is very low, about 4 times lower than on most other altcoins.
So, this is a botnet, or what is it ??  
77Gh net hashrate it's about 65K pcs gtx 1060 GPUs. Seriously??? and all these miners still mining this coin, while other altcoins offering 3x, 4x higher profit?? smells fishly

Two biggest pools have only ~ 23Gh hashrate! Where the rest net hashrate is sitting? Seems what the resh hashrate is HIGHLY centralised by SOLO miners (botnets)

dude who have server with power 65K GPU? I dont believe someone can get that even from google cloud, aws or azure  without not getting attention from them, it's possible if ASIC, but please someone who have knowledge in that subject please enlgihten us whether it can be ASIC or something else

This is quite alarming although I don't think an ASIC is possible since the algo is very memory intensive, I might be wrong though.

Dev would you be so kind to give your opinion about this matter? I thought the new algo where supposed to make it not profitable for botnets to mine zcoin anymore and im not aware of any asics for zcoin seems highly unlikely, so how can this be? What do you think about this enormous hashrate?

lol, botnets were ALWAYS a part of this coin, remember the private investors who made this possible ? they wanted "aws cloud mining" to be #1 from the start, noone was mad they need to please investors, it's understandable.

ASICs? um no. look at the code ya nub, way too mem intensive for a TODAY asic ;p

I know botnets where there form the start we had a different algo then but I thought the new algo was supposed to fix this, or at least make it a lot less feasablie to do. asics seemed like not a option to me thats why I said it seemed highly unlikely, thats why I was wondering how the high hashrate could be explained.

[bamsterdam]

Dev would you be so kind to give your opinion about this matter? I thought the new algo where supposed to make it not profitable for botnets to mine zcoin anymore and im not aware of any asics for zcoin seems highly unlikely, so how can this be? What do you think about this enormous hashrate?

The Lyra2z algorithm was meant to make it much less profitable for botnets to mine Zcoin since GPUs were viable and had some advantage over CPU. I don't think it has a lot of memory though especially when compared to the original algorithm.
Blake256 first round and Lyra2 (timecost = 8, r=c=8). Remember this was a placeholder algorithm.

Given that this is a transition algorithm that is due to be phased out when MTP comes along, it is pretty unlikely that an ASIC has been developed and plus we're a new coin in a rapid state of change.

Previously we were made aware of a sizeable private Nvidia GPU farm that was mining Zcoin since the Lyra2z switch on their own private pool but we really don't know if it's them.

The last I tried mining Zcoin with my Nvidias, it was less profitable than other coins but not THAT much so to make it unthinkable.

ah oke I think I missed this bc I dont follow tread enough. I thought we where allready on MTP algo but where on lyra2z now instead?

[Bannedseller]

How this coin compare to Hush?