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

[kelogs007]

I've tried mining this coin and noticed that share remain unconfirmed. Anyone knows how long it will take for confirmation of shared?Thank you!

[TobiasVR]

I am using the rx470 mining as much as 6 pieces, just get a 400KHs

[cyberspacemonkey]

I've tried mining this coin and noticed that share remain unconfirmed. Anyone knows how long it will take for confirmation of shared?Thank you!

You're going to have to be patient I'm using mininghub's pool and sometimes it can take up to 24 hours to confirm credits, it's because of the algo I think.

[kelogs007]

I've tried mining this coin and noticed that share remain unconfirmed. Anyone knows how long it will take for confirmation of shared?Thank you!

You're going to have to be patient I'm using mininghub's pool and sometimes it can take up to 24 hours to confirm credits, it's because of the algo I think.

Thank you!

[TRILIUNER MUDA]

what's wrong with this coin?
in this month, the price has continued down trend 

[Willywillson]

is the slack group closed? i tried to get invited and received this massage: Failed! token_revoked

[bw2012]

the network hashrate is 10 gb/s or 15 gb/s

Net Hash: 38,907.36 MH/s
source: xzc.suprnova.cc

[majonezas]

So there are only 2 pools that are online - suprnova and miningpoolhub, am i correct?

[kamidela]

Is there any news or any release coming out on this one? I mean i cant find much on twitter or anywhere else about the project... thanks.

[Willywillson]

and is there a any telegram group?

[atulvatsa]

Zcoin now available at CoinSwitch. It can be purchased from https://www.coinswitch.co/exchange/btc/xzc/0.1

[crypjunkie]

https://zcoin.io/zcoin-dev-update-september-2017-znodes-gui-libzerocoin-mtp-and-zeth/

[zcoinofficial]

Zcoin Dev Update 19 September 2017: Znodes, GUI, libzerocoin, MTP and ZEth

What’s Next in Development?
After the completion of the Zcoin core upgrade, this opens up a range of improvements that the team can now work on.

libzerocoin improvements
With the assistance of Tim Ruffing, he has identified several fixes that are required in the software library that underpins Zerocoin and Poramin has implemented them into our codebase based on 0.8. Work is being done to port these fixes over to the new core 0.13 and we intend to roll this out by the end of the month or early October. We believe this is the first major improvement to libzerocoin in a long while and represents a major step forward in providing a secure Zerocoin protocol. Our next step after implementing these fixes is to do a code cleanup and refactor of the Zerocoin code to make it easier to audit.
As our commitment to open source, we will release the source code for this that will allow other projects that are using Zerocoin to secure their own Zerocoin implementations. We hope other projects can contribute to the development of Zerocoin as well.

GUI Revamp
Besides the backend, we understand the importance of having a aesthetically pleasing graphical interface especially when it relates to the use of Zerocoin. Our next task is making the wallet easy and intuitive to use.
We also will have some commands to recover Zcoin that has been stuck in unconfirmed spends from the previous version so make sure you don’t delete your old wallets with funds. As long as you have the wallet where you did the original mints, your funds are safe.

Znodes
At the same time, work will begin on Znodes, the long awaited update that allows incentivized nodes to support the Zcoin network and makes Zcoin into a hybrid Proof of Work and Proof of Stake system. Znode owners will earn a proportion of the block rewards as an incentive to maintain a full node, keep it updated and maintain the network. A certain number of Zcoin will be required as a ‘collateral’ to start a Znode to discourage Sybil attacks. This number will be announced as we come closer to launch but we aim to achieve a balance between allowing people to participate while maintaining a decent profitability for node owners to keep them sufficiently incentivized.

Reusable Payment Codes / Stealth Addresses
We are considering between either implementing BIP47 Reusable payment codes or Stealth Addresses. The benefit of Stealth Addresses is that it can be implemented very quickly given that Poramin was actually the first developer to successfully implement it in a QT wallet in Vertcoin. However, BIP47 has certain advantages over Stealth Addresses in that it can be used in light wallets and they are not distinguishable from regular Zcoin transactions however thought has to be given to how to implement it in the UI and also development will take longer.
Currently there are only two BIP47 implementations out there being the Samourai wallet and the Dark Wallet while stealth addresses are well understood and implemented in many coins.

MTP Porting to new codebase
We will port our existing MTP code to the new 0.13 codebase so that we are ready to implement MTP as soon as we can after the researchers Alex Biryukov and Dmitry Khovratovich publish their revised paper with improvements to MTP both in the areas of security and performance. We will only be able to comment on how long this will take when extended a copy of the revised paper which is expected sometime in October.

Proof of Concept Ethereum Zerocoin mixer
Tadhg is currently well underway with coding of his smart contract for ZEth (Zerocoin mixing on Ethereum). We hope to deploy a functional proof of concept mixer for Zerocoin on Ethereum soon. We hope that this project will bring greater recognition of our project with the Ethereum community along with opening up synergies between the two currencies together with cross atomic swaps which allow decentralized conversion between Zcoin and Ethereum and vice versa.
Poramin and Riordant will be attending Devcon3 in November 1-4 and aim to have the proof of concept smart contract ready by then.

Hardware Wallet Integrations
Community members have started integrating Zcoin with Trezor and Ledger. The Bitcoin core upgrade now makes their task a lot simpler and hopefully will accelerate development here.

https://zcoin.io/zcoin-dev-update-september-2017-znodes-gui-libzerocoin-mtp-and-zeth/

[zcoinofficial]

Zcoin Core Upgrade to 0.13 is here

We are very excited that Zcoin on the new 0.13 core is finally here and greatly improves Zcoin’s performance, network reliability and feature set. The codebase has undergone huge changes and represents a strong foundation to build all our improvements on including Znodes and Zerocoin improvements. We had some delays due to incompatibilities caused by the huge jump from Bitcoin core 0.8 to 0.13 in many aspects. We thank you for your patience!

We highly recommend upgrading to the latest Zcoin release as soon as possible.

Key highlights of the Core Upgrade

• A fresh sync used to take several days and has been brought down to 2-3 hours.
• Full TOR support with hidden services and TOR stream isolation. With TOR stream isolation,  every outgoing connection will (potentially) go through a different exit node. That significantly reduces the chance to get unlucky and pick a single exit node that is either malicious, or widely banned from the P2P network. This improves connection reliability as well as privacy, especially for the initial connections.
• Greatly improved node connectivity, reliability and communication between nodes
• Pruned blocks support allows you to only keep a much smaller set of data taking up only a fraction of space on your hard disk.
• Improved transaction fee system that will dynamically adjust fee where required.
• Allows much easier integration with hardware wallets like Trezor and Ledger of which work is in progress.
• Zerocoin mints and spends are more reliable

Important Instructions when Upgrading to the new Zcoin wallet
As this is a massive code change, a few steps need to be taken to update your existing installation to the new wallet.

Before upgrading to Zcoin 0.13.2.4:

• Backup your wallet.dat to a new location or do so by going to File > Backup
• Browse to your Zcoin directory
• Linux ~/.zcoin
• Mac ~/Library/Application\ Support/zcoin/
• Windows %appdata%\zcoin
• Delete all files and directories there except wallet.dat
• Run the new executable binary

Note: znode.io can be used but you will get a message that you will need to rebuild the database. Just say yes. If you are using command line, please use the -reindex flag.

If you get an error "Error loading block database." it means you didn't clear your Zcoin directory's files as above.

MD5 Digest:
Windows: 0a3fc1086c759e21fb58002fe9990552
Mac: e6304058b22a2dd31ebaf0b999937a86
Linux: 571849b3af8d77e22b6d32dadc5a69a4

Known Bugs:

• Do not do Zerocoin spend transactions until your mint has 7 confirmations. Currently GUI allows it with 6 confirmations only. This will be fixed in next release.
• When doing Zerocoin mint or spend, make sure you have good connectivity to nodes and do a backup before and after you do a mint just to be on the safe side so you can always restore if it doesn't go through. We are investigating some edge cases where the mints/spends don't confirm. This will improve when more nodes upgrade to the new version.

What about Bitcoin Core 0.15, why did you pick 0.13?
0.8 to 0.13 was a massive leap but the development team decided to stick to 0.13 in the interest of getting out a release as soon as possible to improve the user experience as when evaluating, the code change from 0.8 to 0.15 was too great. The movement from 0.13 to 0.15 is also another huge code revamp and although of course brings some benefits, does not warrant the time investment at this stage of development as they centered around scalability improvements which aren’t a pressing issue with our current transaction volume.

We will focus on our other milestones in our roadmap before relooking into another core upgrade though it is definitely on the cards. It is to be noted that most altcoin projects are based off earlier Bitcoin core bases due to the immense work involved (for e.g. Dash/PIVX at 0.10, Zcash at 0.11).

We will cover what Zcoin will be working on next in development in our next blog post.

Download link
https://github.com/zcoinofficial/zcoin/releases/tag/v.0.13.2.4

Full blog post on Zcoin.io

[m1sh0k]

Only 0.76769030 for last 24 hours with 9300kh/s
maybe mph problem ? on suprnova was 1.6 before 2 days.

[Redlion57]

Nice news, great team job!

Downloaded and launched the wallet, sync was made in only 2 hours.
This is a huge improvment, lets go for the rest 

[Jazek]

Nice news, great team job!

Downloaded and launched the wallet, sync was made in only 2 hours.
This is a huge improvment, lets go for the rest  

I didnt say anything, i didnt read that theres a new update sorry

[spawn4ever]

Hello guys. How i can start nodes right now and how much coin i need for this?

[Redlion57]

Hello guys. How i can start nodes right now and how much coin i need for this?

Take a look at last posts

"Znodes
At the same time, work will begin on Znodes, the long awaited update that allows incentivized nodes to support the Zcoin network and makes Zcoin into a hybrid Proof of Work and Proof of Stake system. Znode owners will earn a proportion of the block rewards as an incentive to maintain a full node, keep it updated and maintain the network. A certain number of Zcoin will be required as a ‘collateral’ to start a Znode to discourage Sybil attacks. This number will be announced as we come closer to launch but we aim to achieve a balance between allowing people to participate while maintaining a decent profitability for node owners to keep them sufficiently incentivized."

[ZenFr]

Zcoin Dev Update 19 September 2017: Znodes, GUI, libzerocoin, MTP and ZEth

What’s Next in Development?
After the completion of the Zcoin core upgrade, this opens up a range of improvements that the team can now work on.

libzerocoin improvements
With the assistance of Tim Ruffing, he has identified several fixes that are required in the software library that underpins Zerocoin and Poramin has implemented them into our codebase based on 0.8. Work is being done to port these fixes over to the new core 0.13 and we intend to roll this out by the end of the month or early October. We believe this is the first major improvement to libzerocoin in a long while and represents a major step forward in providing a secure Zerocoin protocol. Our next step after implementing these fixes is to do a code cleanup and refactor of the Zerocoin code to make it easier to audit.
As our commitment to open source, we will release the source code for this that will allow other projects that are using Zerocoin to secure their own Zerocoin implementations. We hope other projects can contribute to the development of Zerocoin as well.

GUI Revamp
Besides the backend, we understand the importance of having a aesthetically pleasing graphical interface especially when it relates to the use of Zerocoin. Our next task is making the wallet easy and intuitive to use.
We also will have some commands to recover Zcoin that has been stuck in unconfirmed spends from the previous version so make sure you don’t delete your old wallets with funds. As long as you have the wallet where you did the original mints, your funds are safe.

Znodes
At the same time, work will begin on Znodes, the long awaited update that allows incentivized nodes to support the Zcoin network and makes Zcoin into a hybrid Proof of Work and Proof of Stake system. Znode owners will earn a proportion of the block rewards as an incentive to maintain a full node, keep it updated and maintain the network. A certain number of Zcoin will be required as a ‘collateral’ to start a Znode to discourage Sybil attacks. This number will be announced as we come closer to launch but we aim to achieve a balance between allowing people to participate while maintaining a decent profitability for node owners to keep them sufficiently incentivized.

Reusable Payment Codes / Stealth Addresses
We are considering between either implementing BIP47 Reusable payment codes or Stealth Addresses. The benefit of Stealth Addresses is that it can be implemented very quickly given that Poramin was actually the first developer to successfully implement it in a QT wallet in Vertcoin. However, BIP47 has certain advantages over Stealth Addresses in that it can be used in light wallets and they are not distinguishable from regular Zcoin transactions however thought has to be given to how to implement it in the UI and also development will take longer.
Currently there are only two BIP47 implementations out there being the Samourai wallet and the Dark Wallet while stealth addresses are well understood and implemented in many coins.

MTP Porting to new codebase
We will port our existing MTP code to the new 0.13 codebase so that we are ready to implement MTP as soon as we can after the researchers Alex Biryukov and Dmitry Khovratovich publish their revised paper with improvements to MTP both in the areas of security and performance. We will only be able to comment on how long this will take when extended a copy of the revised paper which is expected sometime in October.

Proof of Concept Ethereum Zerocoin mixer
Tadhg is currently well underway with coding of his smart contract for ZEth (Zerocoin mixing on Ethereum). We hope to deploy a functional proof of concept mixer for Zerocoin on Ethereum soon. We hope that this project will bring greater recognition of our project with the Ethereum community along with opening up synergies between the two currencies together with cross atomic swaps which allow decentralized conversion between Zcoin and Ethereum and vice versa.
Poramin and Riordant will be attending Devcon3 in November 1-4 and aim to have the proof of concept smart contract ready by then.

Hardware Wallet Integrations
Community members have started integrating Zcoin with Trezor and Ledger. The Bitcoin core upgrade now makes their task a lot simpler and hopefully will accelerate development here.

https://zcoin.io/zcoin-dev-update-september-2017-znodes-gui-libzerocoin-mtp-and-zeth/

What for a lot of good news !
And speculators like these news too : ZCoin price is growing for 35% since this publication.
But ZCoin at 260 kSat is still very low : it's real price is 5000 kSat (0,05 btc) !
September will be a very good month for ZCoin holders :-).