Latest posts of: zcoinofficial

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741

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: June 07, 2017, 08:15:36 AM

Pre-release is out https://github.com/zcoinofficial/zcoin/releases/tag/v0.8.7.8 Quote Sync fixes with ported code from Bitcoin Core 0.13 Added precomputed accumulator for improved loading speed. Compilation fixes on libzerocoin library SHA256 Checksums: zcoin-qt-v0.8.7.8-windows.zip 6040DBFE1100A7055D4509DF1AECF8A1C47064A641AAFC59FE1A346B0CC3ADBF zcoin-qt-v0.8.7.8-osx.dmg 7BEC88B2BE8D403D7C2C779A45796382E9DF5D71BC0F4676CE780D39DA000A44 zcoin-qt-v0.8.7.8-linux64.tar.gz 1383114F3B23445FBBDFC8FAF64D7DC4BBF3479386510CAF672C0FCEAA4E3B8B We recommend starting with a new installation altogether without any wallet.dat though if you wish you can download the chain data from http://znode.io/ that will speed it up a little bit. First sync still take a while but it shouldn't get stuck anymore. Make sure to backup your old wallet.dat just in case. If you have an old wallet with existing funds and wish to port it over, you can export your private key from your old wallet addresses by going to Help > Debug Window > Console and typing the following: If wallet is encrypted type the following into the console. Sometimes it can take a while for console to respond if it's currently syncing. Quote walletpassphrase passphrase 120 dumpprivkey address Once your new wallet is synced u can import the private keys into it by: Quote walletpassphrase passphrase 120 importprivkey address Tested on Linux and Windows but not yet on Mac. Do give feedback. We're actively testing it in Slack in #developers

742

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: June 07, 2017, 04:30:41 AM

For those of you who are having your nodes stuck. The new code seems to fix it and we have pushed it on master branch. We've tested it on fresh new wallets and they all synced perfectly. We'll be releasing binaries for it as soon as we can. Due to the updated code, we need to redo the way the Windows binaries are created. If you're on Linux, you can already build the daemon or qt from here: https://github.com/zcoinofficial/zcoin Instructions here: https://github.com/zcoinofficial/zcoin/wiki/Installation

743

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: June 06, 2017, 06:34:00 AM

Quote from: statdude on June 05, 2017, 07:51:32 PM Having a lot of problems syncing chain. stuck on 21 weeks behind and getting a message Any tips? any checkpoint? Hey statdude, hang in there. Some sync fixes will be pushed pretty soon. You can follow it in the #developers channel in the Slack. We basically narrowed down the problem to the old Bitcoin core that we started with and Leoreinaux and Aizensou have managed to port a lot of Bitcoin Core 0.13 over to optimize this and handle disconnections, orphans and sockets better. I think it's just about coming up with a reliable Windows build right now. Speed wise, multithreaded syncing should reduce sync times a lot and that will come soon. Also a quick update on MTP. Poramin is in the final stages of integration while Aizensou is tweaking the last part of difficulty then MTP can be released. Miners might be slightly delayed as djm34 can only work when there's a full working code out but there will still be a testnet period and a miner competition so that we can get efficient miners out.

744

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: June 05, 2017, 12:40:47 PM

We are pleased to welcome Tadhg Riordan to the team as a Solidity developer to work on integration of Zerocoin technology on Ethereum. Tadhg has previously worked on a system of confidential transactions using zkSNARKs which was built into a smart contract and made use of the precompiled contracts which are to be added to the Metropolis update. He hopes to achieve the same with Zerocoin technology as detailed in our previous post. We are confident this will brings greater awareness of Zerocoin tech and its potential uses and its continued relevance and advantages in providing privacy and also eventually allow greater cooperation and collaboration between the Ethereum and Zcoin community. Tadhg Riordan is a 24 year old Software Developer from Wexford, Ireland. He recently completed my MSc from Trinity College Dublin, where he worked with Blockchain privacy mechanisms, focusing particularly on Zero-Knowledge Proofs and the Ethereum platform. He is a strong advocate for the adoption of crypto-currency and for complete financial privacy. https://zcoin.io/tadhg-riordan-joins-the-zcoin-team-as-solidity-developer-for-ethereum-mixer/

745

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: June 05, 2017, 08:27:19 AM

For those who want to listen to what MTP is about, listen to Aaron's interview of Reuben

746

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: June 03, 2017, 06:17:40 PM

Quote from: AngusCanine on June 03, 2017, 04:14:12 PM Why did the co-founder leave the project? Many reasons but this happened in December 2016 and basically has no more effect on us. Rather not dwell on the past and move forward but basically he has no more input and is no longer part of the project in anyway. You can read the original announcements in December in the original post.

747

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: June 03, 2017, 10:38:50 AM

Coinomi mobile wallet adds Zcoin (XZC) Support Coinomi a free, secure open source wallet has added Zcoin (XZC) support. Coinomi is an excellent way to hold your Zcoins given that it uses recovery seeds and you are in control of your own private keys. It is also a light wallet meaning you don't have to wait for any syncing and is an easy way to get started with Zcoin. Coinomi is currently only available for Android for the moment but an IOS option and a desktop wallet is coming soon. You can grab it from the Android Playstore or directly from their website.

748

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 31, 2017, 03:11:08 AM

Quote from: bamsterdam on May 30, 2017, 10:37:28 PM looking at xzc for some time now. started buying some days ago. When I first started looking at this coin there where a lot of disagreement between devs. that seems to be sorted out? How has this played out? Sorry this have obviously been answered but hard to find it back in all the pages. Also at that time I read thing about huge amounts of coins where in the hands of few people. those two things scared me off back then but was obviously not the right call since it went up like 30 times from there.. does anyone recall what I read about the whales having such a large portion of xzc? tried to find it back but coudnt find it anymore.. was this just fud or was there some truth in it? I must say I got excited about the new algo think xzc is on the right track Welcome back! That co-founder has left the project and has no longer any relations but he didn't do any dev work. He still has confusingly retained his old website and Twitter and Slack but has not actively posted on it for months. We consider the matter resolved. The big wallets are a lot of the exchanges and our explorer rich list gives a good idea of the spread though I think some of the exchange wallets are not all labelled there as I see one of the big ones there definitely being a Bittrex one. The big whales that we know of that bought up a lot have made a lot of efforts in selling their Zcoin OTC and it's spread out a lot now.

749

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 30, 2017, 04:57:36 AM

Quote from: George5 on May 30, 2017, 04:55:33 AM Hey anyone has a fresh blockchain snapshot or a bootstrap file for XZC? The wallet takes forever to sync from the scratch, for some reason it freezes every several seconds . Thanks. znode.io will provide an updated blockchain snapshop though it still takes about a day to verify but at least u won't get stuck. The fix for this is underway and good progress is being done.

750

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 30, 2017, 03:25:44 AM

Quote from: dasgardo87 on May 29, 2017, 11:58:43 AM Quote from: zcoinofficial on May 29, 2017, 09:12:44 AM As for daily interaction, I'll be happy to answer constructive questions. As a policy we won't comment on price speculations or FUD or concern trolls. For our MTP development and sync fixes this has been done on a weekly basis and our Slack is very much the place for the latest updates. Note that MTP is really being built from scratch and even a well funded project such as Zcash took many months to code Equihash. For MTP, there's not always something new to talk about daily and we have been spammed by requests for updates. A single task doesn't take one day to complete especially with a task as big as this one. We have been giving weekly updates and in fact on a more regular basis in Slack but we will not post exact time-frames as that's not how software development works but we aren't too far off. We don't want to create unnecessary hype or give people too exact a timeframe. After all, it's all a long term game for the dev team and MTP is one of the foundational blocks of Zcoin. Other developments in the pipeline are much easier to develop given there are existing codebases to work off. MTP is decidedly ambitious and one of the reasons we haven't been pushing updates to github just yet is we don't want a rival project to take our code and leapfrog us after all the work we've done. Once we have something ready, then all the updates will be pushed but a lot of work has been done and we are near the finish line. hi thank you for the respond, btw can you update in this forum too, since i believe that forum more easy for member to navigate, or to resume his previous reading page, and i also belive there are more member who get update about zcoin here than in slack Some very promising updates have been pushed for the sync fixes. They mainly come from the 0.13 core code and this has been contributed by Leoreinaux. A lot of the sync problems were cause of the older Bitcoin core and how it handled orphans and sockets. For MTP there's also good progress yesterday. After discussion with djm34 and tromp, we found a way to resolve the two remaining obstacles we had which was mining difficulty and the low hashrate we were achieving with our reference implementation so the path to completing it is clear now. Quote from: cyberspacemonkey on May 29, 2017, 09:37:50 PM Is it just me or the wallet takes hours to load? I remember when the project started it was the same, maybe syncing improved a bit but when loading wallet it takes forever to open. the first load is slow but subsequent loads takes seconds for me. Should be improved soon with our sync improvements. Quote from: bitbitch on May 29, 2017, 02:26:23 PM in a nutshell...where does this project want to get to? what's the achievement ambition? Financial privacy is our main aim where we want to achieve it while striking a balance between high anonymity, usability, scalability with strong and proven cryptography while keeping supply auditable. However the Zerocoin tech also has other applications such as use in voting systems or blind auction systems so we potentially can use it to build a platform for such things. Our mining algorithm also is pretty groundbreaking by allowing a memory hard asic resistant algorithm that can be verified quickly. From the investor standpoint, Znodes will offer participants a way to earn XZC by contributing back to the network through their computing resources while earning a portion of the block reward.

751

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 29, 2017, 09:12:44 AM

As for daily interaction, I'll be happy to answer constructive questions. As a policy we won't comment on price speculations or FUD or concern trolls. For our MTP development and sync fixes this has been done on a weekly basis and our Slack is very much the place for the latest updates. Note that MTP is really being built from scratch and even a well funded project such as Zcash took many months to code Equihash. For MTP, there's not always something new to talk about daily and we have been spammed by requests for updates. A single task doesn't take one day to complete especially with a task as big as this one. We have been giving weekly updates and in fact on a more regular basis in Slack but we will not post exact time-frames as that's not how software development works but we aren't too far off. We don't want to create unnecessary hype or give people too exact a timeframe. After all, it's all a long term game for the dev team and MTP is one of the foundational blocks of Zcoin. Other developments in the pipeline are much easier to develop given there are existing codebases to work off. MTP is decidedly ambitious and one of the reasons we haven't been pushing updates to github just yet is we don't want a rival project to take our code and leapfrog us after all the work we've done. Once we have something ready, then all the updates will be pushed but a lot of work has been done and we are near the finish line.

752

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 29, 2017, 08:00:20 AM

Quote from: Aerys2 on May 29, 2017, 12:22:06 AM Any news of the MTP? Currently the refactoring of the code is more or less complete but we are working on the difficulty retarget. Once that is done, then MTP can be finalized. Aizensou is back at work after a few weeks off and also meeting up with Poramin in Thailand to discuss. Syncing which used to take days can be done in a few hours now and is a lot more reliable but we are still finalizing testing. You can follow this in our sync fix tree. https://github.com/zcoinofficial/zcoin/tree/sync-fix-0.8.7.7. We expect this to be even better once our Bitcoin core is upgraded. In other news Riordant has started work on the Ethereum Zerocoin mixer. You'll see that our cryptographer Tim has contributed to certain libzerocoin fixes and improvements which are ongoing (you can see this in our master push). https://github.com/zcoinofficial/zcoin/commit/a1d02ff2caf51b0b7d0255570a2e8e0b965326cf We'll have some additional members joining our team soon as well which we will announce in due course.

753

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 29, 2017, 07:50:46 AM

Quote from: Easteregg69 on May 28, 2017, 04:00:35 PM zcoin wallet! What does the "mint" button do? Belived it to be a minerfunction. I pressed it (don't do that.. i guess.) and 1.01 zcoin was removed from the wallet with no explanation. That was like 85 % of my savings on that account. Thomas. PS: 90 seconds pause between searches here. Should i go and pet my goldfish while waiting? PSS: Ha, I just opened the wallet and 1.0 zcoin was returned after initial startup. Love u guys :-) Gotta be the Stockholm syndrome.. Actually the naming is a bit confusing as most people think "Mint" means like a Proof of Stake mint. Although we are using the correct terminology where we are 'Minting' a Zerocoin and then "Spending" it to become a normal coin again with transaction history wiped. This is what is used in the Zerocoin paper. But for users, this is confusing and we may change the wording to "Anonymize" and "Redeem". Minting means you burn up XZC and keep it in the 'Zerocoin laundry". The spend means you redeem the Zerocoin and turn it into a XZC again with totally wiped transaction history. This is how the anonymity function works.

754

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 20, 2017, 06:34:57 AM

Quote from: Primitive on May 19, 2017, 06:26:14 PM hi guys. finally got my wallet up and running! sent a few XZCs into it from trex. then i was poking around as a total newbie and hit "Mint Zerocoin" button a couple times and see that i sent 1 XCN to empty addresses. does this coins come back to me? or did i just burn them or something? thanks Nope they're burnt. But you can redeem them again but hitting on Zerocoin spend. and they will be newly anonymized.

755

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 19, 2017, 06:37:06 PM

We are excited to announce that Tim Ruffing has joined Zcoin as a Cryptography Advisor. https://zcoin.io/tim-ruffing-joins-zcoin-as-a-cryptography-advisor/

756

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 18, 2017, 06:49:15 AM

Quote from: Viper1 on May 18, 2017, 04:58:53 AM Does this coin take an inordinate amount of time to download the blockchain? I've tried it a couple times and had it run for many hours and only get up to around 7000 before I pull the plug. So I downloaded the blockchain from the service found on the reddit, and the app just sits there "loading wallet". Been like that for close to an hour now. There are some really slow coins out there when it comes to syncing but so far this one is the absolute worst. The first sync takes a long long time but subsequent syncs are heaps faster. To ensure a smooth sync, you can download the chain here znode.io which should make sure you won't get stuck. The verification of the Zerocoin accumulators take a long time. We're working on a fix here: https://github.com/zcoinofficial/zcoin/tree/sync-fix-0.8.7.7

757

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 17, 2017, 08:47:00 AM

Quote from: Ivanovski on May 16, 2017, 09:24:51 PM Cant wait for the mtp. Someone said you will required 1000 xzc is this correct? MTP has nothing to do with any 1000 xzc amount. If anything, there is only speculation that 1000 xzc is needed to setup Znodes however the team has not decided yet as it really depends on the price and network state when Znodes comes closer to launch. So don't believe the rumours. MTP development is still progressing. Aizen is completing one last part called merkletree transportion over block which Poramin has given him and if no hiccups, Poramin's part only takes a few days to do and we would be able to have a public test of MTP. Just that Aizen has been occupied with some personal matters that had prevented him from completing the job earlier since the work involves several hours of uninterrupted concentration. He's actually in Thailand now discussing things with Poramin and has made good progress.

758

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 16, 2017, 04:49:38 PM

We have released the updated graphical roadmap.

759

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 11, 2017, 04:03:43 AM

I have no idea what speculations are there in Slack as we have been watching it and within it and have been answering it properly. Recently banned two guys for continuously swearing and scolding bad words insulting Zcoin and our devs when the price didn't go up during the latest alt coin boom (even prior to the altcoin bloodbath).

760

Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN] Zcoin (XZC) - Implementing Zerocoin technology for financial privacy

on: May 08, 2017, 08:46:15 AM

Quote from: drawingthesun on May 05, 2017, 07:13:43 AM What am I doing wrong here? My wallet is taking a very long time to sync, seems stuck around block 3175. You can also try downloading the blockchain at znode.io and reduces the chances of getting stuck. Quote from: forzendiablo on May 08, 2017, 02:18:37 AM i hold alot of XZC and im waiting for the big moon time. is there any news coming or so? imo this is better than ZEC We are rushing to finish MTP. Should have a public version pretty soon. Our dev Aizensou has just flown to Thailand to meet up with Poramin too as well. Poramin has also done some fixes to make syncing better and are in the process of testing it right now. Quote 2. The bug. As for the bug, note that the price still climbed UNTIL we discovered the bug and announced it. Our talks with Bittrex told us that they were all sold on the market, the effect on the price is already all locked in. It tanked for a short while but has since recovered and consolidated well above that level. Quote I can one relevant professional with a Masters on their webpage. Sure you don't need qualifications, but not everyone is a Vitalik, so the qualifications helps. I see no cryptographers or scientists on their team and I think that isn't a good sign. I can see liaisons and front end dev. The founder is the only one with serious clout. (Poramin Insom) Aizensou is a pretty good dev as well with a PhD in machine learning and experience with working in other crypto projects such as Steemit. And as you know Poramin Insom also has a masters from John Hopkins. We're in discussion with a couple of cryptographers and additional devs who are keen to work with us and are discussing details and their schedule before announcing anything. Quote from: junaidfiaz on May 07, 2017, 06:09:40 AM I have successfuly sync my old wallet which took me many days.but in the end i found few hours solution that was thought to be not feasible. To sync old wallet do following steps. 1-Backup your old wallet. 2-Delete all files from appdata/romming/zcoin .Entire folder (do take backup of your old wallet) 3-New start zcoin with new fresh wallet. 4-close the wallet as soon as it creates new wallet data in appdata/romming/zcoin. 5- Download Block chain from : http://znode.io/ Extract two files of "blocks" and "chainstate" and replace them with folders of "blocks" and "chainstate"(The wallet you just created) in appdata/romming/zcoin . 6-Now restart wallet.it will take some time to sync.it took me 8-10 hours to sync. 7-New as soon as new wallet opens.Backup the New wallet "wallet.dat" and copy receiving zcoin address to send coins from your old wallet to this very new one. 8-Now close wallet and copy old zcoin "wallet.dat" file and replace it with new one (or just simply delete new after taking backup and paste old). 9-Now restart wallet.It will rescan and will take few minutes or just one hr aprox to sync. 10-Now when wallet opens with your old wallet coin.simply send them to new wallet . 11-Get rid of old wallet .as it may create problems in future for you. Don't forget to say thanks if it works. Note :(Always backup & encrypt your wallet with password) Thanks and good to hear you got it working!

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