1EHNa6Q4Jz2uvNExL497mE43ikXhwF6kZm - All Bitcoin private ...

The place for all Bitcoin related puzzles!

This is the place for all of your Bitcoin related puzzles and scavenger hunts.
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Feather - free, open-source Monero desktop wallet releasing soon™

For the past year tobtoht and I have been working on the foundations of a new Monero desktop GUI called Feather for Mac OS and Linux platforms (Windows tentative) using Qt5, libwallet, QtWidgets.
The goal of this new wallet is to provide a practical, robust and easy-to-use Monero wallet for every day use. It aims to be beginner friendly, but should also cater to the needs of experienced Monero users with the addition of advanced features like coin control and multisig.
Feather's user interface is inspired by Bitcoin's Electrum wallet, but adapted to fit Monero. Feather is not a fork of Electrum, all of the UI code was written from scratch in C++ / QtWidgets.
Development began in the summer of 2019. We estimate to release a beta version in November or December.

Video preview

https://www.youtube.com/watch?v=tylbteVtwrw (watch fullscreen)

Why

Our primary motivation is to create a wallet that we ourselves would want to use and recommend to friends. There aren't many options when it comes to non-custodial Monero desktop wallets. The CLI is an excellent tool for power-users, but is simply not an option for users that are not familiar with with the terminal. The GUI has a slick user interface, but is demanding on system resources due the use of Qt Quick.
Instead we've taken inspiration from Bitcoin's Electrum and started working on the most basic looking Monero desktop wallet one can imagine. We've gotten rid of a lot of functionality, but also added new functionality. Just focussing on the basics results in a clean, robust, and beginner proof wallet.

Privacy

In an effort to mitigate unintentional off-chain linking, we have made it harder to reuse addresses by automatically hiding used subaddresses. We find that the primary address leads uninformed users to believe that it is somehow functionally incompatible with subaddresses, or that funds sent to subaddresses can not be spent together. To encourage the use of subaddresses the primary address is hidden by default, and only used for change and coinbase outputs.
Our wallet supports advanced coin control features like freeze/thaw and sweeping a single output. In the future we may add manual transaction input selection.
There is no need to manually setup Tor to protect your traffic, Feather comes bundled with Tor. By default all traffic is routed through Tor with the exception of traffic between wallet and daemon. Wallet synchronization over Tor takes substantially longer than over clearnet, but you can optionally enable to connect to remote nodes over Tor. If your machine already has a Tor daemon running Feather can use the system daemon when instructed.
Just like in the official GUI, Feather essentially has 2 modes of connecting to the Monero network. You either host your node somewhere (localhost/LAN/internet) or we'll provide you one from a list of trusted, stable, community hosted remote nodes (like Cake Wallet). If Feather detects that it's running on Tails or Whonix it will automatically connect to a random .onion remote node.

Performance

Feather is built with Qt Widgets, providing native looks and performance. In a recent test™ a wallet with 10k+ transactions only consumed 200 MB ram (before optimizations). In comparison, the official GUI uses 400 MB before a wallet is opened.
GPU power is plenty nowadays so this hardly a problem, however, we are serious about providing an user interface that feels snappy to use. The application itself starts within 1-2 seconds on most machines (Bitcoin's Electrum is more like 4-5 seconds due to their usage of PyQt).

User experience

We have implemented Tevador's 14 word seed scheme with embedded restore height. The same function is used to derive the private view key from the private spendkey, therefore it is possible to convert the 14 word seed into a standard 25 word seed in case you want to restore the wallet using the official wallet software.
Feather connects to a websocket server over Tor to obtain miscellaneous data such as: price information, a list CCS proposals, posts on /Monero, the most recent blockheight, a list of community hosted nodes and the latest version of Feather.
The websocket server itself is open-source and self-hostable. By default Feather will connect to a server hosted by the project maintainers. The websocket connection can be disabled completely, but some functionality will be disabled/broken.
Our target audience are users who want to use Monero without too many issues and we've designed the wallet as such, with lots of convenience features, while routing it all over Tor in the background.
The native look of the application should feel familair to users as it behaves like any other program that runs on their computer. Added benefit for future contributors/developers is that it's very fast to implement/test UI components by borrowing from QtWidget's vast library. This in contrast with the Monero GUI, which uses custom QML components - a tricky and time consuming rendereframework more suited for large teams to create electron-like applications.

Additional information

Proposal

Work started early summer 2019. We still have some features to finish, prepare CI/CD, etc. As such we expect an alpha or beta release in December 2020. For this we would like the community's approval to allow the milestones defined in GUI CCS to be used for the remainder of this project, paid in full - we can use the support. Consequently all code will be licensed under the Monero Project and features/changes to libwallet or wallet2 will be committed to upstream (Monero GUI/core). Future development and releases will be maintained by dsc__ and tobtoht.

Beta testing

Idle in #feather on irc.oftc.net if you want to help beta testing in a month or so. You will need Linux, as this is our primary platform for developing the application.
Please let us know what you think in the comments. We're open to suggestions/feature requests/brainfarts.
submitted by dsc__ to Monero [link] [comments]

IOTA funds were stolen (3.49Ti ~500k$) on 12th March 2020 after network relaunch [longread]

Hey CC comunity!
First of all, sorry for posting it a bit late I have some serious changes in my lifestyle and business due to Coronavirus situation in the world. For those who are infected I wish to get well soon and all the rest to stay safe and to stay home.
Here is my short story:On March 12th I made similar but short post regarding my stolen IOTA in the sub IOTA. First of all I met around 50% downvotes, I don’t know why but it seems that IOTA’s community don’t want to see posts regarding stolen IOTA, I got a lot of critics for using Trinity wallet instead of hardware and so on. But I see nothing strange using desktop wallet and it doesn’t matter whether it is IOTA Trinity or Bitcoin QT or Ethereum wallet unless in has strong manually typed password, VPN connection and some other security things. Or maybe IOTA’s community was afraid of unwanted bad attention during that market crash that day. So because of that experience I decided to make a post here at CC.
Some short reminder of what happened before my funds got stolen (https://status.iota.org)
Some news:https://www.coindesk.com/iota-foundation-suspends-network-probes-fund-theft-in-trinity-wallethttps://cointelegraph.com/news/iota-foundation-investigates-funds-allegedly-stolen-from-trinity-walletshttps://www.theblockcrypto.com/post/55955/iota-foundation-funds-stolen-users-of-trinity-wallet
If you don’t want to read that news here are some facts with timestamp:
February 12th 2020 - 18:55
As a precaution we ask you to keep your Trinity wallet closed for now.
February 12th 2020 - 19:20
After initial investigation we decided to turn off the Coordinator to make sure no further theft can occur until we find out the root cause of these thefts. (Lets say: “blockchain stopped”)
February 14th 2020 - 17:50
We have found the exploit.
February 15th 2020 - 00:50
After successfully identifying the attack on Trinity through a third-party integration
February 17th 2020 - 02:23
We have just released a safe version of Trinity Desktop to allow users to check their balance and transactions. This version (1.4.1) removes the vulnerability announced on 12th February 2020. (I’ve installed this particular version)
February 21st 2020 - 18:43
ACTION MAY BE REQUIRED TO PROTECT YOUR TOKENS IN TRINITY.
February 24th I left my country for some working trip
February 26th 2020 - 13:10
We are currently in the testing phase of the migration tools, once testing completes the tools will be audited by a external party. If this all goes well we are aiming to release these tools later this week.
February 29th 2020 - 19:15
The Seed Migration Tool is now available.
March 6th 2020 - 15:17
REMINDER: You have until 5PM (UTC), Saturday, 7th March to migrate your seed.
I’m still out of the country but I’m pretty sure I’m safe coz I’ve installed 1.4.1 wallet which removes the vulnerability.
March 8th 2020 - 18:15
The migration period has ended.
I got back to my country
March 10th 2020 - 16:45
We are aiming to resume value transactions around 5PM CET today.
March 10th 2020 - 18:15
The network coordinator has resumed operation. (Let’s say “blockchain restarted”)
Now my turn:
My balance by that time (https://imgur.com/EJiB6it)
March 10th
I’ve decided to send my IOTA to exchange until I buy Hardware wallet and sort it out how it worksTest transaction to exchange 5Gi:JQ9DZPGUFLBJTLDLIKQBWLUBOXJULKIQFSWKNYVFIHETSZJOTGRYEZZELE9BZFVUEBGATEITPDTXXHZVD
It took exchange 24 hours to credit it to my balance…
March 11thFirst large transaction to the exchange (~23% of my net holdings of IOTA) 1Ti9YGGTHDKARCBVEPWUYURYEAKSKUNITGCGKSCJRXBVKHLBHEXXTNAWOFNPOBGHG9IKCZRABFNBJHVWNZIZ
All over again… 24h to credit it to my balance.
March 12th
I’ve opened my Trinity wallet and found out that money were stolen 3.4TiPOUBLIDSDZSNLKYBHVDAAEGVKGZ9PGKCBKRGUKEKIUQGSEWZNBQCHLLKIAZKEYHJVGJD9GYHT9JJNY9VW
screenshot of transaction with stolen IOTA (https://imgur.com/DtXbjOs)
All performed transactions (https://imgur.com/M8Qj2jC)
Same day I’ve made first post on reddit to get some attention to the happened situation. At the same time I’ve start to search for some technical support through over official telegram groups:
iotatangle
(https://imgur.com/McmrF3L)I’ve send a message where I’ve stated that my funds were stolen after network relaunch. Got some response from user Basti he invited me to another group with general discussion.screen shot 1 (https://imgur.com/hvDuoQA)screen shot 2 (https://imgur.com/MewdNm5)
Our short dialogue continued at the general discussion group iotacafe
(https://imgur.com/e9ErcPW) Where Basti introduced me to the IOTA Foundation member Antonio Nardella (https://imgur.com/WxZRk8N)
Before I started my conversation with Antonio I decide to get some information about him. I’ve found a Medium post with some welcoming words to Antonio Nardella.
(https://imgur.com/KK4zoOv) telegram(https://imgur.com/VquNCpi) medium
Seems legit.
Of course I couldn't be 100% sure it was him but the information he asked for wasn’t really sensitive so decided to share all I knew and all I did.
(https://imgur.com/X3Ha02Q) He also mentioned a wallet integrated service MoonPay, whether I used the wallet with this service or not and it didn’t matter if I used the service it self.
I’ve informed him that I used 1.4.1 wallet which was recommended to install on February 17th 2020(https://imgur.com/iZdNcm7)
When he gathered all the necessary information regarding loss of funds he took the time for sending this information for investigation team.
After a long awaited answer I got the same day this:
“Hello, I was informed that the loss of tokens is associated to the person/team responsible for the Trinity wallet attack via a third-party dependency from Moonpay.
As suggested on https://status.iota.org/, please file a report with the local police and to cite the following case number when doing so: LKA Berlin, Center for Cybercrime, case number: 200213-1717-i00290.”(https://imgur.com/Gov1v0i)
So, reinstalling the wallet didn't help me to avoid the loss of funds.
Well if my funds are proved to be stolen then it means - yes, I’ve used the Trinity wallet between the December 17th 2019 and the February 17th 2020. And yes, I wasn’t able to make seed transition during the given period. I was out of the country starting form Feb 24th till March 8th. I can even proove it with my border passing stamps… You know I didn’t use to take 4.5Ti with me just in case I would need an urgent seed transition. Could you imagine thousands of people with their multimillion Bitcoin holdings carrying private keys everyday with them just in case they would need seed transition… The funds were stolen not by my mistake but IOTA developers/foundation/etc (lets say IOTA team) mistake.
At the end of my story I want to take your attention to the fact that I didn’t compromise my PC neither wallet nor password nor seed. All my fault was for using the desktop wallet… How can you imagine your user without using your software/services/etc… I want to publicly call IOTA team (especially mr David Sonstebo) to cover not only those which were to happen back in the Feb 2020 but all the loses which were caused by that wallet vulnerability. (https://www.coindesk.com/iota-founder-personally-refunding-hack-losses-to-safeguard-projects-remaining-reserve)
Thanks for reading and thanks for your time!
submitted by blockchainified to CryptoCurrency [link] [comments]

Groestlcoin 6th Anniversary Release

Introduction

Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything.
The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years.
In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.

UPDATED - Groestlcoin Core 2.18.2

This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables.
NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.

How to Upgrade?

Windows
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer.
OSX
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications.
Ubuntu
http://groestlcoin.org/forum/index.php?topic=441.0

Other Linux

http://groestlcoin.org/forum/index.php?topic=97.0

Download

Download the Windows Installer (64 bit) here
Download the Windows Installer (32 bit) here
Download the Windows binaries (64 bit) here
Download the Windows binaries (32 bit) here
Download the OSX Installer here
Download the OSX binaries here
Download the Linux binaries (64 bit) here
Download the Linux binaries (32 bit) here
Download the ARM Linux binaries (64 bit) here
Download the ARM Linux binaries (32 bit) here

Source

ALL NEW - Groestlcoin Moonshine iOS/Android Wallet

Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network.
GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.

Features

Download

iOS
Android

Source

ALL NEW! – HODL GRS Android Wallet

HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled.
HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user.
Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.

Features

Download

Main Release (Main Net)
Testnet Release

Source

ALL NEW! – GroestlcoinSeed Savior

Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases.
This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats.
To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.

Features

Live Version (Not Recommended)

https://www.groestlcoin.org/recovery/

Download

https://github.com/Groestlcoin/mnemonic-recovery/archive/master.zip

Source

ALL NEW! – Vanity Search Vanity Address Generator

NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator.
VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline.
If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address.
VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase.
VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).

Features

Usage

https://github.com/Groestlcoin/VanitySearch#usage

Download

Source

ALL NEW! – Groestlcoin EasyVanity 2020

Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet.
If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).

Features

Download

Source

Remastered! – Groestlcoin WPF Desktop Wallet (v2.19.0.18)

Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode.
This wallet was previously deprecated but has been brought back to life with modern standards.

Features

Remastered Improvements

Download

Source

ALL NEW! – BIP39 Key Tool

Groestlcoin BIP39 Key Tool is a GUI interface for generating Groestlcoin public and private keys. It is a standalone tool which can be used offline.

Features

Download

Windows
Linux :
 pip3 install -r requirements.txt python3 bip39\_gui.py 

Source

ALL NEW! – Electrum Personal Server

Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node.
It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node.
Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine.
Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in.
Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet.
Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.

Features

Download

Windows
Linux / OSX (Instructions)

Source

UPDATED – Android Wallet 7.38.1 - Main Net + Test Net

The app allows you to send and receive Groestlcoin on your device using QR codes and URI links.
When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.

Changes

Download

Main Net
Main Net (FDroid)
Test Net

Source

UPDATED – Groestlcoin Sentinel 3.5.06 (Android)

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets).
Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changes

Download

Source

UPDATED – P2Pool Test Net

Changes

Download

Pre-Hosted Testnet P2Pool is available via http://testp2pool.groestlcoin.org:21330/static/

Source

submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

Corrupted wallet.dat with 18 btc - Possible to restore bitcoins?

I have a wallet from yore, had 18 btc that got corrupted and I kind of just lost interest in bitcoins. Well now that 18 is woth $2K or so and I fired up a new bitcoin-qt wallet with that wallet.dat file to see if it would read it. Well it almost did.
The GUI read 18 unverified bitcoins at first, and as the blockchain neared completion, it verified every bitcoin. I was so excited. But then it crashed with a runaway exception "can't open database file wallet.dat -30974"
I get that error when I try to send a bitcoin too. Any chance of restoring this near-working wallet?
EDIT: Bitcoins have been recovered!!!!!!! The final solution was provided by musicbunny, to which I am extremely greatful for his out-of-the box solution. I think pywallet suggested by eof would have done the trick too. The keys probably could have been extracted, but I was running into trouble with my version of Python. Maybe it needed Python 2?
submitted by bitbeast to Bitcoin [link] [comments]

[TUTORIAL] -- How to SAFELY Claim New RNG Coins Using Your Private Keys

[TUTORIAL] -- How to SAFELY Claim New RNG Coins Using Your Private Keys

https://preview.redd.it/u4x1o4p37zc41.png?width=700&format=png&auto=webp&s=01d1ff52c0b7fc1c9ae5bb4f161979ad1f4bb559
I’m a longtime blockchain enthusiast and developer and one of my biggest gripes about this space is how quickly every new project is widely dismissed as a “scam” or “shitcoin” by so many people before it even gets off the ground. Sure, there is a lot of uncharted territory with pirates lurking to steal your bags left and right but with a small amount of personal education you can exist safely in the world of crypto I promise! With this article I aim to help lift your knowledge a little higher while helping keep your funds a little safer!

So What Is Happening?

On Tuesday February 18, 2020 a new coin named Ring (RNG) will be minted. This coin aims to bring two unique and fresh methods of proofing to the crypto game, quite literally: Agent-Based Hive Mining (borrowed from LCC) and Proof-of-Play Mining, where literal gameplay is used to hash and reward miners! To celebrate and help spread the word, the team is giving away claims of free RNG to all holders of the following coins:
  • Litecoin Cash (LCC)
  • Bitcoin (BTC)
  • Dash (DASH)
  • Dogecoin (DOGE)
It's being touted as the world's first crypto "4-way fork" but I'd really call it more of a "4-way claim" since its a brand new chain and not based on the code of any of the rewarded coins. It's simply a clever method of allowing a wider range of coin holders a chance to participate in the launch of these exciting new features!

How Will This Process Work?

On the 18th of February, a balance snapshot will be taken of the four chains listed above. Anyone holding a balance with any of these coins at the time of the snapshot will be forever eligible to claim their RNG at any time. Because the only way to prove ownership of a crypto address is to supply the private keys, and pretty much EVERYONE will tell you to guard those things with your life, below I will outline exactly what to do so there is absolutely 0% risk of losing a single satoshi! This method will apply to ANY claim rewards of any coin in the future as well. Always practice #SafeForking!

How Do I Safely Claim My RNG?

STEP 1 -- BEFORE THE SNAPSHOT -- VERIFY ACCESS TO YOUR PRIVATE KEYS
All core wallets will allow you to export a private key of any address in your wallet but many third party services like exchanges and hot wallets do not allow access to them. In these cases you will need to send your funds out of the third party service and into some kind of personal wallet where you can reach the private keys yourself. Then just wait for the snapshot to happen…
To make things easier on yourself, you can optionally collect your original coins into as few addresses as possible BEFORE the snapshot. Doing so reduces the number of keys you will need to empty and import later. It’s just less work!
\** SNAPSHOT HAPPENS HERE... ****
STEP 2 -- ATER THE SNAPSHOT -- EMPTY ALL ADDRESSES YOU WISH TO CLAIM
After the snapshot is confirmed, withdraw all coins OUT of each of your origin coin addresses into brand new addresses leaving the original ones quite empty. This way when you import later there is NO risk of losing anything! Also know that after you import these private keys you should never use them again for safety’s sake! It’s kind of the whole reason you’re even reading this article in the first place.
STEP 3 -- EXPORT PRIVATE KEYS FOR ALL ADDRESS YOU WISH TO CLAIM
This is the most difficult part, are you ready? Once each claim address is confirmed to be EMPTY, you must obtain each one’s private keys. This will entirely depend on the wallet you use (QT example below) but for all core wallets there is generally an option for exporting private keys somewhere in there. Collect them all!
How to Export QT Wallet Private Keys:⛔️ — DISABLE INTERNET FOR SAFETY — ⛔️- Open the QT wallet client- Click on HELP in the menu bar- Click on DEBUG WINDOW- Click on the CONSOLE tab- Click inside the input box at the bottom(if your wallet is locked…)- Type: walletpassphrase [Password] 600(this unlocks your wallet for 10 minutes)- Type: dumpprivkey [Address]- Copy the output hash, paste it into a list somewhere.(repeat as needed, clear your clipboard history after)- Type: walletlock (if applicable)⚡ — RE-ENABLE YOUR INTERNET —
STEP 4 -- IMPORT ALL PRIVATE KEYS INTO RNG CORE WALLET
\** PLEASE VERIFY THAT EVERY CLAIM ADDRESS IS EMPTY BEFORE CONTINUING... ****
The final step is to simply import each of these private keys into the new Ring Core Wallet to claim your free RNG rewards. The wallet handles this part automatically and you will see your new RNG balance right away. You can find this option under the File > Import Private Keys menu.
Importing a private key is the only way to prove ownership of a crypto address so this is unavoidable if you want to claim new coins from it. The steps above will allow you to prove ownership of your snapshotted address balance plus use its empty key to then claim your new coins thus keeping your original coins completely protected in the brand new address with a new private key (which you should now also keep VERY private!)
By emptying the address before you import it’s private key you eliminate the risk of theft entirely. One cannot take from an already empty jar. It should also be noted to NEVER use the imported address again as an added safety precaution*!*
👏👏👏 DONE! ENJOY YOUR FREE MONEY! 👏👏👏

How Much RNG Will I Receive?

Litecoin Cash holders will receive the highest claim ratio (5000 LCC = 1 RNG) as the LCC team are the ones responsible for creating Ring and wanted to extend a heart-felt thank you to the LCC community for their years of support. All other coins will be based on a 1:1 ratio with the value of Bitcoin at the time of the fork. This of course means 1 BTC = 1 RNG. For DASH and DOGE, however, their BTC market prices will determine their reward ratios. (For example if DASH is trading at 0.015 BTC each, then each DASH coin will net you a reward of 0.015 RNG to match.) Of course you don't need whole coins to claim, partial decimals work just fine!

What Value Will RNG Have?

That, my friends, is entirely up to the markets. No one in the history of crypto has had a perfect track record of price predictions so I'm not even going to try here. I will say, though, having gotten to play with their Testnet a bit so far that I am very impressed with the new Proof-of-Play method and how they have initially implemented it. It bodes very good things for the future of their project and this coin so I personally would expect its value to hold and most likely rise steadily as more people become aware of this groundbreaking new tech and it's potential to expand outward!

Is Litecoin Cash Still Going To Exist?

Absolutely! At least, from what I can gather. LCC has it's own purposes and will continue to be developed on. Ring is not meant to be a replacement or upgrade of any kind to Litecoin Cash. It is an entirely different proofing algorithm and a different mission statement altogether. It's more so meant to help expose the amazing new technologies developed on the LCC blockchain to a wider audience beyond simply its own fan base. If anything it'll act a sister chain that can help expose more folks to LCC in the future!

Disclaimer

While I am a moderator for the Litecoin Cash Discord server, I am writing this from an independent point of view as an educated crypto enthusiast with a passion for helping others navigate these waters. Having been an initial forker and third party developer on top of LCC myself, I feel I have some valuable insight into the direction the team is taking and I wanted to offer some sound advice for the upcoming Ring fork before the FUD gets caked on too thick.
I know a lot of people get scared easily in crypto because of the rampant scamming that goes on but I've watched this team work their asses off for two years to get out from under the stain of Charlie Lee's very biased, uneducated "its a scam" tweet which was endlessly parroted throughout the Litecoin community with nothing but blind party loyalty and no due diligence. The LCC folks are kind, wonderful hard-working people with big hearts and ambition and they have actually developed a unique proofing methodology that is likely going to impress a lot of people!
So before you go jumping on the "it's just another shitcoin" bandwagon please stop and take a real hard look at both Litecoin Cash (LCC) and Ring (RNG): two viable projects with something to bring to the table! If nothing else, hey, just claim your new coins and dump them off for some free money. You literally cannot lose if you PRACTICE SAFE FORKING!!!
Good luck, cryptonauts!
=A=
submitted by auscoine to RingCoin [link] [comments]

[TUTORIAL] -- How to SAFELY Claim New RNG Coins Using Your LCC Private Keys

[TUTORIAL] -- How to SAFELY Claim New RNG Coins Using Your LCC Private Keys

https://preview.redd.it/9csw52aw30d41.png?width=700&format=png&auto=webp&s=53ceb329c9772d7f0abbcc56b44ba405e34dd8a8
I’m a longtime blockchain enthusiast and developer and one of my biggest gripes about this space is how quickly every new project is widely dismissed as a “scam” or “shitcoin” by so many people before it even gets off the ground. Sure, there is a lot of uncharted territory with pirates lurking to steal your bags left and right but with a small amount of personal education you can exist safely in the world of crypto I promise! With this article I aim to help lift your knowledge a little higher while helping keep your funds a little safer!

So What Is Happening?

On Tuesday February 18, 2020 a new coin named Ring (RNG) will be minted. This coin aims to bring two unique and fresh methods of proofing to the crypto game, quite literally: Agent-Based Hive Mining (borrowed from LCC) and Proof-of-Play Mining, where literal gameplay is used to hash and reward miners! To celebrate and help spread the word, the team is giving away claims of free RNG to all holders of the following coins:
  • Litecoin Cash (LCC)
  • Bitcoin (BTC)
  • Dash (DASH)
  • Dogecoin (DOGE)
It's being touted as the world's first crypto "4-way fork" but I'd really call it more of a "4-way claim" since its a brand new chain and not based on the code of any of the rewarded coins. It's simply a clever method of allowing a wider range of coin holders a chance to participate in the launch of these exciting new features!

How Will This Process Work?

On the 18th of February, a balance snapshot will be taken of the four chains listed above. Anyone holding a balance with any of these coins at the time of the snapshot will be forever eligible to claim their RNG at any time. Because the only way to prove ownership of a crypto address is to supply the private keys, and pretty much EVERYONE will tell you to guard those things with your life, below I will outline exactly what to do so there is absolutely 0% risk of losing a single satoshi! This method will apply to ANY claim rewards of any coin in the future as well. Always practice #SafeForking!

How Do I Safely Claim My RNG?

STEP 1 -- BEFORE THE SNAPSHOT -- VERIFY ACCESS TO YOUR PRIVATE KEYS
All core wallets will allow you to export a private key of any address in your wallet but many third party services like exchanges and hot wallets do not allow access to them. In these cases you will need to send your funds out of the third party service and into some kind of personal wallet where you can reach the private keys yourself. Then just wait for the snapshot to happen…
To make things easier on yourself, you can optionally collect your original coins into as few addresses as possible BEFORE the snapshot. Doing so reduces the number of keys you will need to empty and import later. It’s just less work!
\** SNAPSHOT HAPPENS HERE... ****
STEP 2 -- ATER THE SNAPSHOT -- EMPTY ALL ADDRESSES YOU WISH TO CLAIM
After the snapshot is confirmed, withdraw all coins OUT of each of your origin coin addresses into brand new addresses leaving the original ones quite empty. This way when you import later there is NO risk of losing anything! Also know that after you import these private keys you should never use them again for safety’s sake! It’s kind of the whole reason you’re even reading this article in the first place.
STEP 3 -- EXPORT PRIVATE KEYS FOR ALL ADDRESS YOU WISH TO CLAIM
This is the most difficult part, are you ready? Once each claim address is confirmed to be EMPTY, you must obtain each one’s private keys. This will entirely depend on the wallet you use (QT example below) but for all core wallets there is generally an option for exporting private keys somewhere in there. Collect them all!
How to Export QT Wallet Private Keys:
⛔️ — DISABLE INTERNET FOR SAFETY — ⛔️
- Open the QT wallet client
- Click on HELP in the menu bar
- Click on DEBUG WINDOW
- Click on the CONSOLE tab
- Click inside the input box at the bottom
(if your wallet is locked…)
Type: walletpassphrase [Password] 600
(this unlocks your wallet for 10 minutes)
- Type: dumpprivkey [Address]
- Copy the output hash, paste it into a list somewhere.
(repeat as needed, clear your clipboard history after)
- Type: walletlock (if applicable)
⚡ — RE-ENABLE YOUR INTERNET — ⚡
DONE!
STEP 4 -- IMPORT ALL PRIVATE KEYS INTO RNG CORE WALLET
\** PLEASE VERIFY THAT EVERY CLAIM ADDRESS IS EMPTY BEFORE CONTINUING... ****
The final step is to simply import each of these private keys into the new Ring Core Wallet to claim your free RNG rewards. The wallet handles this part automatically and you will see your new RNG balance right away. You can find this option under the File > Import Private Keys menu.
Importing a private key is the only way to prove ownership of a crypto address so this is unavoidable if you want to claim new coins from it. The steps above will allow you to prove ownership of your snapshotted address balance plus use its empty key to then claim your new coins thus keeping your original coins completely protected in the brand new address with a new private key (which you should now also keep VERY private!)
By emptying the address before you import it’s private key you eliminate the risk of theft entirely. One cannot take from an already empty jar. It should also be noted to NEVER use the imported address again as an added safety precaution*!*
👏👏👏 DONE! ENJOY YOUR FREE MONEY! 👏👏👏

How Much RNG Will I Receive?

Litecoin Cash holders will receive the highest claim ratio (5000 LCC = 1 RNG) as the LCC team are the ones responsible for creating Ring and wanted to extend a heart-felt thank you to the LCC community for their years of support. All other coins will be based on a 1:1 ratio with the value of Bitcoin at the time of the fork. This of course means 1 BTC = 1 RNG. For DASH and DOGE, however, their BTC market prices will determine their reward ratios. (For example if DASH is trading at 0.015 BTC each, then each DASH coin will net you a reward of 0.015 RNG to match.) Of course you don't need whole coins to claim, partial decimals work just fine!

What Value Will RNG Have?

That, my friends, is entirely up to the markets. No one in the history of crypto has had a perfect track record of price predictions so I'm not even going to try here. I will say, though, having gotten to play with their Testnet a bit so far that I am very impressed with the new Proof-of-Play method and how they have initially implemented it. It bodes very good things for the future of their project and this coin so I personally would expect its value to hold and most likely rise steadily as more people become aware of this groundbreaking new tech and it's potential to expand outward!

Is Litecoin Cash Still Going To Exist?

Absolutely! At least, from what I can gather. LCC has it's own purposes and will continue to be developed on. Ring is not meant to be a replacement or upgrade of any kind to Litecoin Cash. It is an entirely different proofing algorithm and a different mission statement altogether. It's more so meant to help expose the amazing new technologies developed on the LCC blockchain to a wider audience beyond simply its own fan base. If anything it'll act a sister chain that can help expose more folks to LCC in the future!

Disclaimer

While I am a moderator for the Litecoin Cash Discord server, I am writing this from an independent point of view as an educated crypto enthusiast with a passion for helping others navigate these waters. Having been an initial forker and third party developer on top of LCC myself, I feel I have some valuable insight into the direction the team is taking and I wanted to offer some sound advice for the upcoming Ring fork before the FUD gets caked on too thick.
I know a lot of people get scared easily in crypto because of the rampant scamming that goes on but I've watched this team work their asses off for two years to get out from under the stain of Charlie Lee's very biased, uneducated "its a scam" tweet which was endlessly parroted throughout the Litecoin community with nothing but blind party loyalty and no due diligence. The LCC folks are kind, wonderful hard-working people with big hearts and ambition and they have actually developed a unique proofing methodology that is likely going to impress a lot of people!
So before you go jumping on the "it's just another shitcoin" bandwagon please stop and take a real hard look at both Litecoin Cash (LCC) and Ring (RNG): two viable projects with something to bring to the table! If nothing else, hey, just claim your new coins and dump them off for some free money. You literally cannot lose if you PRACTICE SAFE FORKING!!!
Good luck, cryptonauts!
=A=
submitted by auscoine to LCCofficial [link] [comments]

Stolen Bitcoins

Hi, I just checked my bitcoin wallet and saw that my bitcoins were stolen. It was not a trivial amount and I'd like to know if there is anyone that can help me and if there is anything I can do to get them back. Just let me know what information I need to give. Thank you.
submitted by bitcoinproblem to Bitcoin [link] [comments]

How would you store bitcoins so you need 2 out of 3 passwords to recover them?

Possibly something not using any external service, so not storing them in a place where they offer this service, but if the place goes down you lose your bitcoins.
Thanks
submitted by pietrosperoni to BitcoinBeginners [link] [comments]

(Updated) [Staking] Reddcoin Core client GUI wallet on a Raspberry Pi Model 3B

Intro

This thread is an update to my first Reddcoin staking tutorial that was written 7 months ago.
 
The reason for the update
My Reddcoin Core software crashed and became unusable. My Raspberry Pi 3B would lag and freeze, I couldn't stake anymore.
 
Instead of just redoing everything the same way, I wanted to see if I could improve on 3 points:
 
The updates
 
If you would like to tip me
Writing a tutorial like this takes time and effort; tips are appreciated. My Reddcoin address: RqvdnNX5MTam855Y2Vudv7yVgtXdcYaQAW.
     

Overview

 

Steps

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
     

Video

https://www.youtube.com/watch?v=Snr5e8bzftI
This video shows how long it takes to start Reddcoin Core.   TL;DR:
     

Extra

Backup
Backup your wallet to prevent losing the RDDs in your wallet! There are two methods to backup, do both. Make new backups if you create a new receiving address!
 
 
   
Boot with only 1 USB drive plugged in:
Make sure only the USB drive (with the swap partition and data partition) is plugged in when you boot up your Raspberry Pi. This to make sure the swap partition (/dev/sda1) is recognized correctly.   If you boot up with multiple USB drives, Lubuntu might see the USB drive with the swap partition as the second drive (instead of the first drive), and ignore the 2 GB swap partition. If this happens, starting Reddcoin can render the Raspberry Pi unresponsive.
   
Connection issues If you have issues syncing the blockchain because you have 0 network connections, please follow the instructions in this thread.
   
Start Reddcoin Core easier
Run a shell script (.sh file), so you can start Reddcoin just by double clicking on an icon on your Desktop.
   
Minimization options
Adjust minimization options, so you can safely press on the X button (the close/exit button on the upper right corner).
   
RealVNC VNC Viewer (client) and VNC Connect (server): To remote connect to the Raspberry Pi, I use VNC Viewer ad VNC Connect from RealVNC.
 
   
Chromium as browser: The updates break Firefox, the browser crashes when you try to run it. Install another browser, Chromium, to solve this issue.
   
Updates / Upgrades
If Software Updater shows up and tells you that there is updated software available, do not install the updates using Software Updater. Use LXTerminal to update Lubuntu.  
     

Credits:

   
Credits in previous tutorial:
submitted by Yavuz_Selim to reddCoin [link] [comments]

1/16/2010 *Buys 20$ worth **Forgets and loses the key. New Liberty Standard.i

Let’s say I imagined this whole thing, I like to think so anyways. I was freshman in college and finally got that financial aide. My great aunt(73) tells me to buy 20$ worth. Della was a wise woman, god rest her soul. I remember just doing it. The thing is I was frustrated at the end. I don’t remember exact details but, some things I’m sure of. Some facts are still coming back to me the more time I spend remembering. I may of google’d bitcoin and found myself at a forum. Found this guy and then proceeded to email him. To make the purchase. I had never had as much money and was looking for something to invest into.
I may 90% sure the transaction may of completed.
I remember making a password, a really long one, and changing a few letters for numbers.
Paid the nice man via PayPal,
Received the coins, I hope.
I remember multiplying the “coins” by 1 cent, one nickel, dime and so on. I actually optimistically multiplies then by 1$ and laughed.
I remember looking at, what I know now to be a Private key, and getting frustrated that that’s all I had to represent my “imaginary intangible money,” upset I took a picture and stored the camera and a paper with the password in a drawer. I never considered anything of it until the bull run of 2017. Was convinced to find the coins but really doubted that reality was ever going to manifest.
Since then I have been casually looking into it, checked the laptop but it was wiped and idk much about computers. I constantly double think myself and wether my subconscious made the memories up. I been doing more research however, the more I think about it, the more I feel like it’s possible.
Well I figured out the date my great aunt told me to buy, it was 1/15/2010... This guy gets paypal balance increased 20$ the day after. Damn, say it ain’t so.
Can I restore the memory of that old laptop and recover the wallet? There’s only one wallet at that time and it’s bitcoin qt.
First I have to get the laptop back from my sister, we aren’t on talking terms anymore. Lol
Am I just forever going to think about this without any closure? Is this what crazy feels like?! Do you ever feel like you are living a movie script?!
P.s. you should know during this time I was super stoned as I just got my first plug that had quality and expensive herb. I was certainly lit during purchase and wallet creation .archived exchange site
submitted by ChaosChris1cR to CryptoCurrency [link] [comments]

All About Zcoin

All About Zcoin

https://preview.redd.it/hixbz9f3lxm31.jpg?width=1200&format=pjpg&auto=webp&s=43896de84a3693d840c84057c0314af71718f0a3
What is Zcoin?
Zcoin, also referred to as XZC or Zerocoin, is an open source decentralized cryptocurrency that provides privacy and anonymity for its users when making transactions.
To achieve its privacy and anonymity, Zcoin uses zero-knowledge proofs via the Zerocoin protocol, which is at this moment in time one of the most cited cryptography papers.
According to Wikipedia, in cryptography, a zero-knowledge proof or zero-knowledge protocol is a method in which one party proves to another party (the verifier) that a given statement is actually true.
In other words, in a transaction with Bitcoin or Ethereum or something similar, your transaction history is always linked to your coins by default, leaving you vulnerable. All it takes is one link to your personal information or IP to find out the origin of the coins.
However, when you trade with Zcoin’s Zercoin feature, your transaction history is not linked to the actual coins. Only the receiver and sender know that the funds have actually been exchanged.

How Does Zcoin Work?

Zcoin works on the Zerocoin protocol by enforcing Zero-knowledge proofs. Here are the components of Zcoin to explain how it works.
Mint: When sending a private transaction with Zcoin, all you need to do is select the number of coins you want to mint. Post that your normal Zcoin balance would reduce automatically and you will be credited with new coins and no transaction history. In essence, your old coins are burned cryptographically, which prevents anyone else from using them again and being directed to your transaction history. You get credited with new coins with no history, while the total supply is maintained.
For now, you can only mint in denominations of 1, 10, 25, 50 and 100. If you choose ‘100’ coins to be minted, for instance, you will instantly be credited with 100 new Zcoins with no history attached to them.
  • Spend: When you want to make a private transaction, you will be required to use these ‘100’ newly minted coins. From this pool of funds, you can now send any amount in any denomination to anyone anonymously because no history is attached to it.
  • Repeat: You can ‘mint’ and ‘send’ Zcoins any number of times at anytime with your privacy intact.

Zcoin’s Vision

Zcoin seeks to improve things that Bitcoin hasn’t been able to so far, some of which include fungibility, privacy and miner’s centralization.
Users of Zcoin can enjoy full fungibility and privacy along with demolishing miner’s centralization by implementing a better proof of work algorithm called MTP.
Total Zcoin supply
Only 21 million units of Zcoin will ever be produced. Currently, there are about 3.4 million units in circulation, with the rest yet to be mined.
But the total supply has increased by 388450 XZC units after a Zcoin code bug, which the team refused to roll back due to economic reasons, which is why the total supply stands at approximately 21.4 million.
Every 10 minutes, a Zcoin block is mined and 50 coins are generated, making 72,000 Zcoins per day.
Market cap of Zcoin
According to CoinMarketCap, the total circulating supply of Zcoin is 5,757,841 XZC and the current unit price is $9.6. That makes the market cap approximately $55 million*.*
https://preview.redd.it/qw2igvupoxm31.png?width=1080&format=png&auto=webp&s=cfaa195d5d75ba8f20e5894d0351b2eabf76825a

How To Buy Zcoin Cryptocurrency

If you are looking to get some Zcoin, here is a list of resources where it can be bought from.
  • Atomars – Supported pairs are XZC/BTC, XZC/ETH, XZC/USDT
  • Binance - Supported pairs are XZC/BTC, XZC/ETH, XZC/BNB
  • Huobi - Supported pairs are XZC/BTC, XZC/ETH
  • Bittrex - Supported pairs are XZC/BTC
  • Cryptopia - Supported pairs are XZC/BTC, XZC/LTC, XZC/DOGE
  • CoinExchange - Supported pairs are XZC/BTC
  • LiteBit.eu - Supported pairs are XZC/EUR
Note: At the moment, buying XZC in fiat currencies such as USD, EUR, or GBP is quite difficult.
https://preview.redd.it/rrwao97woxm31.png?width=1460&format=png&auto=webp&s=442bf152f86a63300c5c4a029bb07369a69e6f70
Zcash:
Zcash is a decentralized and open-source peer-to-peer cryptocurrency that provides strong privacy protections. It was created as a fork of Bitcoin and, like bitcoin, it also has a hard limit of 21 million coins. Unlike bitcoin, however, Zcash offers total privacy for its users maintaining the absolute anonymity behind each transaction along with the parties and the amounts involved in it.
PIVX:
PIVX, which stands for Private Instant Verified Transaction, is an open-source, decentralized form of digital online money that uses blockchain technology. This makes it easy to transfer all around the world in an instant with low transaction fees with market leading security & privacy. PIVX focuses on privacy, security, anonymity, and instant transactions.
Monero:
Monero is a fast, private, secure and untraceable digital currency system that uses a special kind of cryptography to keep all its transactions 100% unlinkable and untraceable. With Monero, you are your own bank. You can spend safely, knowing that others cannot see your balances or track your activity.
Some Zcoin misconceptions
There are some misconceptions regarding Zcoin:
  • Some believe that, since Zcoin has a trusted setup that allows indefinite minting of coins, it is not safe. This is untrue. Of course, to start with they had to use a trusted setup because they have an auditable total coin supply that prevents any form of cheating. This downside however, is being taken care of by removing this trusted setup in the near future and when that happens, Zcoin will be one of the serious coins to count on for privacy.
  • Zcoin has been considered as Zcash’s fork but that is also not true because Zcash is based on the Zerocash protocol whereas Zcoin was started from scratch by applying Zerocoin tech.
Now that some of the Zcoin’s misconceptions have been cleared, here’s a look into its future.

Zcoin’s Future & Roadmap

Zcoin’s future is quite promising and worth watching based on these interesting milestones on their roadmap:
  • Zcoin is the first coin to implement MTP proof of work, which makes it possible for general masses to mine Zcoin with GPUs and CPUs. MTP doesn’t allow costly ASIC-like miners to mine XZC coins.
  • Zcoin is also implementing Znodes to make their cryptocurrency more decentralized and anonymous. These Znodes will be like masternodes and facilitate anonymous transactions as making an anonymous transaction single-handedly is quite computational.
  • Znodes will be incentivized by reducing some portion of the founder’s reward. Also, the surplus funds that get generated from the founder’s reward reduction would be used for hiring new developers and increased marketing efforts.
  • Another agenda on their roadmap is to bring inbuilt Tor or some IP obfuscation mechanism that will make it completely anonymous.
  • Apart from these, some innovative and exciting things like sigma protocol, decentralized anonymous voting and Zcoin Labs are on their roadmap, making this project worth checking out.
  • Last but not least, its recent price is a good indicator of its healthy market sentiment and shows that there are people who understand this project’s worth. Just to put things into perspective – a unit of Zcoin was priced $2 in March 2017 and now it is $37*.*

Zcoin Team & Progress

Zerocoin is a cryptocurrency proposed by professor Matthew D. Green, a professor of Johns Hopkins University, and graduate students Ian Miers and Christina Garman. It was proposed as an extension to the Bitcoin protocol that would add true cryptographic anonymity to Bitcoin transactions.
Zerocoin was first implemented into a fully functional cryptocurrency and released to the public by Poramin Insom, the lead developer, as Zcoin in September 2016.
Some of the notable dev members of the team are listed below.
Poramin Insom
Founder and Core Developer
Poramin Insom created what was the world's 4th most valuable cryptocurrency in February 2014. He is also the world's first person to implement stealth addresses in QT-Wallets, improving cryptocurrency anonymity. He earned a master’s degree in Information Security from Johns Hopkins University, where he wrote a paper on a proposed practical implementation of the Zerocoin protocol.
Alexander N.
Developer
Alexander N. aka Aizensou is a full-stack developer who has experience in many programming languages (C++, C#, Python, Perl, Java etc.) and has been involved in the cryptocurrency space since 2013. He has a broad development portfolio from low level APIs in Python and C++ to Android native applications in Java. In addition to his involvement in cryptocurrencies, Alexander was doing his P.h.D. in machine learning at a German university from 2012 to 2016.
Saran Siriphantnon
Developer
Saran Siriphantnon is the CTO of Satang.co/Satoshift, a fintech company focusing on creating an open financial system for Southeast Asia. He served as President of the Computer System Administrator Group at King Mongkut's Institute of Technology Ladkrabang.
Tadhg Riordan
Solidity Developer
Tadhg Riordan is a 24 year old Software Developer from Wexford, Ireland. He recently completed his 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 cryptocurrency and for complete financial privacy.
Apart from these, their team comprises of other developers, community managers, support personnel and advisors who maintain the required balance.

Advisors:

Aram Jivanyan (Cryptography Advisor): Co-Founder at Skycryptor & KMSchai
Torphop Korgtadam (It Security Consultant): Senior Vice President, Head Of Internal Audit Strategy, Innovation and Decision Science at United Overseas Bank Limited
Alexander N. aka Aizensou (Advisor)

Unique/Key Features Against Its Competitors:

  • Anonymous transactions. The project establishes a notably higher level of anonymity and seeks to bypass current analysis techniques which governments use to reveal the identity of users.
  • Not subject to transaction graph analysis. Zcoin has an anonymity set that encompasses all minted coins in a particular RSA accumulator that can scale to many thousands.
  • Innovative process. Tokens are burned cryptographically and replaced with new coins without a transaction history. This actively prevents anyone else from using the tokens again and stops the public from being directed to a user's transaction history.
  • Transparency focused. Zcoin's main advantage is its auditable money supply.
submitted by atomarsofficial to Atomars [link] [comments]

[ELI5] How to send coins using Coinb.in

How to send coins from ANY wallet using https://coinb.in/#settings

Why?

Because cold wallets, such as those stored offline in a text file as I keep recommending in my standard advice below:
All you need is a text file to put your wallets in, like this example from https://walletgenerator.net/?currency=Dogecoin
1,"D7WBUpdgLRtG6WyPsqjhaKiJR65X8ZGnkZ","6KieLMW1poAzNVnmLuQZqA262gxEQ51eLGdDK8e2GL2B4LHCKKb" 2,"DM8LT16d49zHr8ByXbUwZb9UBXDGMaZRdc","6Ktgxdv6vN9v2bDHwcJBBb3oMRAgXJumESzBnxaXUSGFZoq6pWQ" 3,"D5UCa51AfxjtVHQ46oYXe2YfkctTeLXPhx","6L2WSPWadRYCwt2L1CxH6zC7PoTYY3KyjxdiUoCqi5eyq6hQKvj"
Use https://coinb.in/#settings to move coins. Download both sites and run them offline. Use https://bitinfocharts.com/dogecoin/ to check balances and transactions. See http://www.mocacinno.com/blog/create-sign-broadcast-transactions-using-coinb/ for coinb.in tutorial. And read the ELI5s (and my history) for more info.
Are without doubt THE SAFEST way to store your coins. Plus, they consume no resources. No bandwidth, no network stress for every node we have, no storage of 20Gb+ blockchains, no weeks of waiting for things to sync, no tearing your hair out and posting desperate pleas for help, and most importantly, no coins irretrievably lost because you or your client screwed up.

What?

Wallets, ALL WALLETS are nothing but numbers. Very large numbers, but fundamentally no different from “7”, “42”, “911” or a phone number. They cannot be created nor destroyed, and you either know them or you don’t. Anyone who knows a key can use it to spend any coins it controls. Anyone who doesn’t know it, can’t. Don’t be the guy who doesn’t know his own keys. Keep them safe. Make copies. Keep those safe. Don’t let your friends, kid brother or random burglar find them, but don’t lose them either.
The only other thing you need for a fully functional wallet is a way to spend coins. Coinb.in is such a way. There are others, such as DogeCoinMultiSig.org which tomcarbon built.
Oh, and you can and should download it and run it locally.

Where?

The default entry point for coinb.in is https://coinb.in/#settings because this settings page is very well hidden. Its in the tiny gear wheel on the Broadcast page.
Looking across the top of the page, you can see
  • + New
  • Verify
  • Sign
  • Broadcast
  • Wallet
  • About
We’re only going to use three of these. New, Sign, Broadcast.
Now, keep in mind that coinb.in is an old Bitcoin tool which tomcarbon added Dogecoin to. Sometimes it thinks its dealing with Bitcoin still, so if you see anything odd, go and make sure you’ve selected Dogecoin in the Settings page.

When?

This tool should be the only place you spend coins. Sure, some clients may look more convenient, but they all suffer from a very big coin-losing flaw. Whenever you split a UTXO, they create a new wallet to send the change to. And they DON’T TELL YOU! This means unless you back up after every transaction, you run a high risk of finding all your coins have ‘disappeared’ from your wallet, and you don’t recognise where they went.
So if you use a client for the convenience as well as a text list of your wallets, you won’t know to add a new wallet to your masterfile. Its best to ditch the clients entirely.

How?

Now we come to the nitty-gritty. Lets use those three wallets above and assume that #1 is the source, #2 the destination and #3 the change wallet. Note that these won’t actually work, as none of them have ever been used, but they will do as examples.
New Transaction
Located at the bottom of the New menu, this will give you a page to enter your wallets and amounts.
In the top field, you enter your source address or Key. If you use the key, it will calculate the address when you click the Load button, which should match what you expected. Note that Load only brings in the first 100 UTXOs. This is so that you can retrieve coins from high-volume wallets which would kill any client. Coinb.in is in fact the ONLY WAY to do this, as even QT falls over around 600 UTXOs.
You will see the total balance that was loaded in the Transaction Fee field. And also in the Inputs tab, where you can go to adjust which UTXOs to spend.
Now you need to add the wallet(s) and amounts to send to them. Lets suppose the source contained a single UTXO for 1,000 Doge. You want to send 500 of them. So you would enter the #2 address in the Address field, and 500 in the Amount field. The Fee now changes to 500, which is not what you want.
So you click the + button to bring up a new line, enter the change address and the other 500, making the fee zero.
And you’re done. Check that the Fee is indeed zero. Check that the amounts shown in the Outputs and Inputs tabs match exactly.

THIS IS CRITICAL!

There is a bug which will send all the coins to the miners if the Outputs exceed the Inputs. I would have expected the Fee to show as negative in such a situation, but it doesn’t. BE WARNED!
Once everything looks right, hit the Submit button.
This will give you a block of hex code. Copy it.
Sign
Go to the Sign tab and paste it. Add your private key for the source wallet and click Submit. Note this can be done offline for safety.
This will give you another block of hex, the SIGNED transaction.
Broadcast
Copy this and paste it in the Broadcast tab and click Submit.
That’s it. Your coins are on their way. Make a cuppa and settle in while they arrive in a minute or three.
Note: All fields retain their values unless you refresh the page! This can be a boon when doing multiple transactions, such as when emptying a huge wallet. But it can also be a trap for the unsuspecting. Refresh or close the window when you’re done.

Who?

Who should use this?
Absolutely EVERYONE!
Even if you’re wedded to your client in some satanic blood-contract, you should still know how this works, because sooner or later you’re going to have a problem you can’t fix without it.
Definitely download the site and store it on every device you have. On every USB backup of your wallets. On your phone (well, except iOS which doesn’t do local HTML), etc, etc, etc.
Oh, and if you’re a programmer SmartyShibe, do consider improving the code over on GitHub.
EDIT: https://github.com/OutCast3k/coinbin added courtesy of AtomHearth
submitted by Fulvio55 to dogecoin [link] [comments]

Transcript of Open Developer Meeting in Discord - 5/31/2019

[Dev-Happy] Blondfrogs05/31/2019
Hey everyone. I have opened the channel. So us peeps can talk :smiley:
Hans_Schmidt05/31/2019
Hello !
Tron05/31/2019
Hey all!
I've been on different high-priority project for Medici for last few weeks, but that should wrap up Monday and then I can spend more time on Ravencoin.
Thanks to Scotty for working on BlockBook which was needed for more wallets.
Hans_Schmidt05/31/2019
Good opening. I was going to ask- The last ravend/qt develop Github commit was on May 3rd. Can anyone comment on when work is planned to resume on?
Tron05/31/2019
@[Dev-Happy] Blondfrogs has been working tirelessly on Tags and Restricted Assets.
It is coming along nicely.
It is going to need lots of testing.
Just because there's been lots of changes.
[Dev-Happy] Blondfrogs05/31/2019
@Hans_Schmidt I have moved to my personal github with changes. You can check out my repo on the branch tags to view the latest commits
Tron05/31/2019
Topic: 12-words and time
One of the issues with 12-words on the mobile wallet is that it needs to scan the blockchain to find funds when recovering a wallet.
One proposed idea is to include additional info (optional) like a number that represents the number of weeks since Jan 3, 2009 to start scanning the chain.
Hans_Schmidt05/31/2019
@[Dev-Happy] Blondfrogs I looked at tags. tags last commit was 4/26. Is that correct?
Tron05/31/2019
Another proposal would be to use some of the bits in the 128 bits of entropy generated as a number (instead of entropy).
[Dev-Happy] Blondfrogs05/31/2019
yep. that is correct. I have been working on the Qt element of it, to hopefully aid with testing.
Great idea @Tron
Tron05/31/2019
Example: <96 bits entropy> + <32 bits timestamp>
Or <128 bits entropy> which is the seed and encoded into 12-words, and then a number like 5212 for how many weeks after Jan 3, 2009 to start scanning the chain. This would just speed things up.
Thoughts everyone?
Thoughts anyone?
[Dev-Happy] Blondfrogs05/31/2019
I love it.
Link05/31/2019
It seems a good idea.
ParabolicAssoil - HODL COACH05/31/2019
Pretty smart. I am wondering how Electrum handles it and why we can't use that method. I assume it doesn't work for assets?
[Dev-Happy] Blondfrogs05/31/2019
Most Electrum wallets are light wallets, and don't use the same syncing method that our breadcore wallet uses
Tron05/31/2019
Electrum doesn't work for assets.
Hans_Schmidt05/31/2019
Why does it have to be part of the word seed. Then you have to remember it like a key derivation path. Why not just have the gui ask at what date to start scan?
Tron05/31/2019
Either method of encoding would work and be compatible with any BIP44. With the extra number, you'd ignore it for Coinomi, or JAXX. With the encoding the time into the 12 words, there'd be no change, but you'd lose 32 bits of entropy. 4 Billion times less secure if you knew exactly when the wallet was created.
@Hans_Schmidt That's also an option.
ParabolicAssoil - HODL COACH05/31/2019
Thanks for the answers, gentlemen
Hans_Schmidt05/31/2019
The long term solution in bitcoin for faster more secure SPV is Neutrino protocol.
Tron05/31/2019
What's Neutrino protocol?
Hans_Schmidt05/31/2019
Complicated replacement for bloom filters but has some bitcoin-core pull requests already and being pushed by the Lightning folks.
Tron05/31/2019
Thanks. I'll read about it this weekend.
Hans_Schmidt05/31/2019
For what you need, a gui question is MUCH simpler
[Dev-Happy] Blondfrogs05/31/2019
So @Tron for the 12 words there are two options we are talking about.
  1. Using 12 words in addition to a timestamp to help the mobile wallets sync faster?
  2. Using some about of words and a timestamp to create the private key?
Is this correct>?
Both accomplish the same thing, just implemented in the different way. Faster sync for mobile wallets
traysi05/31/2019
What's the status on messaging?
[Dev-Happy] Blondfrogs05/31/2019
Messaging is complete, we are wrapping it up with the restricted assets release. I am currently buiding the QT gui elements needed for both restricted assets, and messaging.
Tron05/31/2019
@[Dev-Happy] Blondfrogs Yes. They do the same thing. One option potentially reduces security of the 128-bit seed. The other requires writing down an extra number that is optional. 12-words + [optional number] Where the [optional number] just clues in the wallet as to when to start syncing the chain without it having to reference an API.
[Dev-Happy] Blondfrogs05/31/2019
Thanks, If it was me, I would want to not change to many critical elements of the BIP44 protocol so that we can still utilize all current existing packages and libraries that support it.
Hans_Schmidt05/31/2019
Mobile sync- Stay standard Messaging- From what I could tell, at protocol level Message and Memo are the same. Is that correct?
[Dev-Happy] Blondfrogs05/31/2019
Yes.
Tron05/31/2019
Message and memo are the same. The only difference is how the message/memo is interpreted by the clients.
Hans_Schmidt05/31/2019
Thanks
Tron05/31/2019
A memo that is attached to a tx that sends back to origin (for an owner token) is a message that will be displayed by clients. If the client has some of that token.
Sminem05/31/2019
I just came here to say i love you all and keep it up. And also that we are all going to make it bruhs
Hans_Schmidt05/31/2019
Makes sense
𝕿𝖍𝖊 𝕯𝖔𝖓 𝕳𝖆𝖗𝖎𝖘𝖙𝖔 CEO ∞05/31/2019
i got my barber to my some RVN
i did my part
Tron05/31/2019
@Hans_Schmidt Messages make sense or that Sminem loves us all?
Sminem05/31/2019
both
Hans_Schmidt05/31/2019
Yup:smiley:
theking05/31/2019
I know there are a lot of moving parts right now, but what is the current ETA on restricted assets and tags going to testnet?
[Dev-Happy] Blondfrogs05/31/2019
Currently the protocols are complete. However, to make testing easier for the average user, we are working on basic Qt functionality before we will release.
I would say 1-2 weeks of development on the QT side, and we will be ready for testnet
Sminem05/31/2019
What is situation with dividends, i'm dumb
we had BW develop it but he cannot anymore due lack of time
Tron05/31/2019
We will need to re-assign it or do it next.
Sminem05/31/2019
sorry if it has been asked
okey
Tron05/31/2019
No, excellent question.
[Dev-Happy] Blondfrogs05/31/2019
I have been working with a member of the community that has been implementing dividends.
Sminem05/31/2019
nicee
[Dev-Happy] Blondfrogs05/31/2019
I will have more info on that next week
CryptokittyPizzaBoi JON.NETWORK05/31/2019
How is voting coming along?
[Dev-Happy] Blondfrogs05/31/2019
voting was pushed back in order to work on restricted assets.
So voting will be the next phase after testing of the latest build makes it to mainnet
Chill05/31/2019
Just wanted to randomly add that you all rock! It can't be said enough
theking05/31/2019
Awesome news on the timing @[Dev-Happy] Blondfrogs
[Dev-Happy] Blondfrogs05/31/2019
yes sir :smiley:
Any other questions we might be able to answer for you peeps?
Hans_Schmidt05/31/2019
I haven't tried to test tags branch (restricted) on testnet because that would be another fork in a sea of forks. A pre-gui messaging+restricted "official" release would be helpful
[Dev-Happy] Blondfrogs05/31/2019
Yeah, we can do that. I will work on that start this next week. and hopefully we can release testnet sooner.
Hans_Schmidt05/31/2019
Great.
Tron05/31/2019
Any tooling, or 2nd level stuff that's missing that is needed?
[Dev-Happy] Blondfrogs05/31/2019
There are a couple things missing that will help view data but all protocols and consensus should be working and testable
john mclaine05/31/2019
I just want to thank you, and tell you that my contribution will be to write an article in French detailing the entire RAVENCOIN project and its perspectives. IN CODE WE TRUST
[Dev-Happy] Blondfrogs05/31/2019
sounds good @john mclaine
I think we are going to call it for today everyone. Sneak in some questions if you have them in the next minute or so
Tyrantt05/31/2019
Hey guys, I've been around since late Jan 2017 and just want to say that you guys rock. I haven't been following as much lately since I've been busy with life, but was wondering if there is a guesstimation on when the roadmap will be completed
[Dev-Happy] Blondfrogs05/31/2019
Hopefully end of 2019. A nice little holiday miracle.
Daveatt05/31/2019
would be a nice X-mas present indeed. Thanks guys for your hard work. You guys rock
Tyrantt05/31/2019
Wow, that's sooner than I was anticipating. This is a great project and I'm glad that I took a leap of faith with it when I first heard about it. Keep up the good work :)
[Dev-Happy] Blondfrogs05/31/2019
Thanks everyone. Have a great weekend and keep spreading the word of CAAAWWWWWWW
We are out :smiley:
Chill05/31/2019
Best dev team anywhere
Sevvy (just wow)05/31/2019
:beers:
Tron05/31/2019
Thanks all!!!
Seal <:cricat:> Clubber05/31/2019
:bepbep:
submitted by mrderrik to Ravencoin [link] [comments]

Start Here for Much Wallet WOW!

EDIT 2017-02-10: A word about Nodes

There is a discussion about nodes that came up today, where it seems I'm discouraging people from running the full QT/Core client. Yes and No. What I'm trying to make sure people understand is how things work, and that it is NOT mandatory to run a client in order to use Dogecoins (and yes, I realise that browser-based tools like coinb.in and wallet sweepers are 'clients' by strict definition).
That said, more nodes is absolutely a good thing for the network. Preferrably full nodes. How do you run a full node? Just run Core/QT and open up Port 22556 on your router so it can connect to more than 8 peers. What will it cost you? You need your machine to be on 24/7/365, you need enough storage for the full blockchain (currently about 20Gb. Bitcoin is over 120Gb) and enough bandwidth to keep it in sync and share blocks with peers. A couple of Gb a month, most likely. This is best done with a desktop on a wired broadband link. Or maybe a hosted VM in the cloud. :)

EDIT 2017-01-09: Wallets WITHOUT Clients

Since I started helping people on /BitcoinBeginners, I'm getting a lot of questions about how to use wallets without running clients or trusting third parties. So here are a couple of resources that will make that possible, and not just for Dogecoin:
Multi-Coin Wallet Generator Now supporting 129 currencies! Coinb.in Start by setting the currency, found in the gear wheel in the Broadcast tab. Dogecoin Wallet Sweeper Redeem 'paper' wallets containing up to about 100 UTXOs. Bitinfo Charts My favourite block explorer, handles a bunch of cryptos.
Using these resources, it is possible to hold, receive and spend coins in various currencies, without having to run QT or a 'lite' client. You can also download and run the pages on your own device.

EDIT 2016-11-23: SEMANTICS about MINING! :P

Even though there is already a section on mining below, it has been suggested given the huge number of posts on the subject that this needs to be made clearer. Since people get their panties in a twist over the word 'dead', lets change that...

MINING IS DEAD!

MINING DOGECOIN IS UNPROFITABLE!

Put simply, there is no way to mine Dogecoin and make a profit because of the massive hashpower provided by industrial-scale Litecoin miners. Mining Doge directly stopped being viable when our hashrate exploded with the introduction of AuxPoW. Mining with CPU's and GPU's died when ASICs were introduced. And mining with a laptop WILL kill your laptop and cost you a fortune to repair or replace. Mining Litecoin with an exchange that also mines Doge and others will earn less than the electricity consumed, and you won't recover your costs. Probably ever, but certainly not in any reasonable time.
Mining other currencies may be a thing, but that's beyond our scope here. This is /Dogecoin, not /GetRichMiningCryptos after all. If you want to mine the newest scamcoin for fun and profit, look elsewhere for advice. :/
Oh, and most important:

READ BEFORE YOU POST!

At any given time, there are half a dozen posts on the frontpage just like the one you're about to write, where the answers have already been given. Read them. Don't make people waste their time repeating themselves because you were too lazy to bother reading stuff. :P
So there I was, having a quiet Sundy arvo bludge, as you do, when 42points turned up on Facebook and asked me to write a new sticky post for /dogecoin. Why would he do this, when he should be having a bludge himself, I hear you ask? Well, seems he was doing exactly that, and wanted to fob off the work he’s too slack to do himself. ;) Ah well, being a sucker for punishment, I’ll grudgingly oblige I guess.
OK, first things first.

The Clients:

Dogecoin Core 1.10.0 2015-Nov-01
Bootstrap file for Core to save some download time.
Dogecoin Core Guide Wiki
MultiDoge v0.1.7 2016-Jan-31
Android Dogecoin Wallet 2.0.8 2016-Jan-18
Android Coinomi Wallet
Java Cate 0.14 alpha 2 Multicoin wallet 2016-Feb-14
Exodus multicoin wallet
iOS Doughwallet

Do you REALLY need a client?

Wallet ELI5
UTXO ELI5
Paper Wallet Generator
Sample HTML Wallet List
Dogetipbot subreddit and website
Dogechain Wallet
Block.io Wallet
Exchanges
BTC38
Poloniex
CoinSpot
ShapeShift - Not really an exchange, rather a currency trader.

Mining

Litecoinpool
Prohashing
Zpool

Explorers

BitInfoCharts - My favourite, has charts!
chain.so
dogechain.info
/dogecoindev where the devs hang out

More Info

Dogeducation
Technical Wiki
Preev currency value calculator

EDITS:

From peoplma
I was wondering if you could add just a couple things. A link to the coinomi android wallet, it's probably the best one out there. And a sentence somewhere along the lines of "if you need help with any dogecoin software you are welcome to make a post, but PLEASE include your OS, version number of the client, and any relevant transaction IDs that you are willing to share" if you can fit that in somewhere.
Also, if you want to link to Prohashing, I'm pretty sure it's the only Scrypt mining pool that will actually pay out in doge. The others I know of pay out in litecoin or bitcoin. And it's a profit switching multipool, so gives a better return than just mining ltc/doge.
And there's these two wiki articles I thought would be helpful to link /dogecoin/wiki/technical for those technically minded newbies or intermediate users who want to dig a little deeper. And maybe a link to /dogecoin/wiki/dogecoincoreguide next to the link for dogecoin core.
From pts2002
Finally a proper sticky post! Here's some other stuff you could add:
zpool.ca mining pool - You can get paid in pretty much any coin, and you can mine in multiple algos (currently mining lyra2v2 with my GPU). Doing about 500Ð/day
shapeshift.io exchange - My favourite exchange, quick and easy. No registration required!
Also, you should add some blockchain explorers!
chain.so - Support for bitcoin, litecoin and doge.
dogechain.info - Official blockchain explorer. Includes a wallet (already mentioned). Live update currently not working (?)
EDIT: Here's another thing I found!
preev.com currency value calculator - Easy way to check the value of your dogecoins (or bitcoins, or litecoins, or peercoins)!
submitted by Fulvio55 to dogecoin [link] [comments]

Litecoin-QT wallet Private Key access tutorial. Client dumpprivkey walletpassphrase How to Find the private key of any blockchain address ... Getting your Private Keys from the Bitcoin Core wallet ... Bitcoin private key finder In Bitcoin Core Wallet  Find ... Bitcoin Private Key Finder (Android & PC)

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