How do I switch from MultiBit to Bitcoin-QT? - Bitcoin ...

How does the BitQT App work?

How does the BitQT App work?

https://preview.redd.it/81cx1yfe1pm51.jpg?width=474&format=pjpg&auto=webp&s=2ceddeda7d5dc0be5c7d4b4dfa7a715baac65b3a
In the later part of websites are the testimonials screaming out loud regarding their success.BitQT review can be quiet judgemental at this point as a result of neither these testimonials prove the legitimacy of the web site nor the live profit reviews account such
You extremely want to understand that if you opt to speculate you’ll surely not visiting recover. TheBitQT just prove this by themselves stating it not being on affiliate terms with others. Something that’s claiming that you simply’ll earn 110zero greenbacks every day is doing a true-time scam job
Perhaps, theBitQT states advertising itself on Times, CNN and Forbes however neither of them found supportive during this regard. You'll check it all by yourself. This is often the sound proof of its scamming regime throughout the globe
It doesn’t have that laser-accurate performance as in trading bitcoin you can never guarantee the minimum amount of profit you be earning the other day. Its what happens when trading with Forex

Many of the websites agree onto the proficiency ofBitQT negating the crucial and impactful proves I shared with you higher than. They are saying it’s flawless. Will something be this flawless letting you earn regarding one thousand bucks each day without charging a penny? The automated transactions are known to be deposited directly into the user’s account that is nowhere to find affiliation with. Undoubtedly, most of the revealing sites have the only supportive argument beginning with, ‘As the review suggests’. Do raise yourselves, is that this the legitimate way to prove legitimacy ofBitQT
They too argue regarding the legitimate verification method. That’s the explanation why there’s a number of complaints with reference to the current. If these products would have really worked, why not each single person select to remain off from their offices integrating with it somehow:

Merely head to the SIGN-UP section on theBitQT site, fill in your personal info, and present your registration. When acknowledged, you'll be able to be able to access our restrictive Bitcoin exchanging

To induce your exchange account in progress, you’ll have to include some assets. WithBitQT, you can create a initial investment of as low as $250, although you'll be able to contribute as a lot of as you wantoy
Since your enlistment has been acknowledged and you’ve invested some funds, you’re fully done. Simply click on ‘trade’ to receive the rewards ofBitQT’s highly rated algorithm. In case you need a hands-on approach, you can shift to manual operation by changing the settings

There’s no harm in trading in terms of cryptocurrency. We have a tendency to’re not against it. But we tend to really aim to reveal the very fact thatBitQT isn't a legitimate website to believe during this case. To actually invest in bitcoin you initially want to shop for a bitcoin wallet so as to store all bitcoins. a series of blockchain integrations which permits you to top-up and earn.

But, as stated earlier you’ve no actual guarantee concerning the number you wish to earn. Secondly, you wish to integrate your bitcoin wallet to your account and then you’ll be ready to head towards the foremost step. Here, you’ll jin a bitcoin exchange system for trading bitcoin for any different traditional currencies of the market.

It works well solely if you for legitimate sites for functioning and planning. Perhaps, it too needs a nice amount of ability and we never promise you to begin earning when you join Bitcoin Exchanger somehow. This was all aboutBitQT Review as a full fulling the aim of alerting the scam going around.


Money Forex Cluster scamThe Cash Forex Group is run by a company named CFxG which allegedly was founded by a team of experts in all kinds of areas, mainly education in the monetary trading field and network promoting.

https://preview.redd.it/0gc7ga9f1pm51.jpg?width=474&format=pjpg&auto=webp&s=5c031ac047e635c47d3ee592ab9235878613c890
These experts and their automated trading system will supposedly facilitate your to form heaps of cash. In trading solely you'll allegedly make fifteenp.c weekly on your investments. Then there are referral programs and multi-level structures that can boost your income even more. Is that t
Money FX Group scamLet’s begin this Money Forex Group review by stating the obvious, this scheme may be a total scam, you just have to look at the numbers.BitQT

When they promise you fifteen%+ weekly, it means that 60percent+ monthly, which is totally ridiculous in the important world. It means a lot of than 560zeropercent per year, therefore you'd need solely $18,00zero greenbacks to become a millionaire within year. And this is often plain impossible.

No legitimate business can create you a gradual fifteenpercent weekly, no financial markets are that predictable and that easy to trade. It may appear straightforward to you, but it really is this straightforward, a program promising fifteenp.c weekly should be a scam, there is no alternative method, the Money FX Group is a scam.

However there is additional to go through in this review.
Massive lies

Money FX Cluster testimonialThe Money Forex Cluster claims to be regulated by the subsequent institutions: FAC – Financial Conduct Authority of London, DFSA – Monetary Services Authority in Dubai, FSCA – Monetary Sector Conduct Authority of South Africa and FSA – the Monetary Services Authority of Seychelles.

But guess what, the FAC will not even exist, while the others (DFSA, FSCA and FSA) haven't issued any license whatsoever to Cash Forex Cluster. Therefore not only Money FX Group is not regulated at all, it conjointly is lying huge time regarding its regulatory status.

The fact is that it's no license whatsoever, so it cannot supply investment services legally in most countries.

This is often conjointly why they want you to deposit cryptocurrencies, they wish to remain as anonymous as potential, so that they will run away along with your cash.
Regulatory warning

Not long when we have a tendency to printed our analysis, the Financial Conduct Authority (financial regulator in Nice Britain) came up with its own warning.

The regulator said that CashFX is providing investment services without the mandatory authorization and advised the public to remain off from it. This is often a very serious argumentBiTQT.

It'd be terribly unwise to deposit money with an unregulated and basically anonymous entity, as a result of it would not be protected in any means. No matter where the cash finally ends up, this program is promising you impossible returns on investments, which in itself confirms that something is wrong.
How it works

Let’s end this Cash Forex Group review by explaining the essential principle of this investment program. It's a Ponzi theme that does no real economic activity. It just collects money from individuals and may pay out some profits, but the most recent clients’ deposits can be used for that.

This will have an inevitable outcome, the system can sooner or later crumble. It's simply a matter of your time when there can be not enough deposits to hide withdrawals and also the inevitable end can

Nobody has not been paid, that is NOBODY ….. after all you can't compound or upgrade your CFX account unless you withdraw (get paid) …. CFX are not regulated…. as a result of they use a Regulated broker (everfx) to trade…so that information is also incorrect…and judging by the actual members comments….I’d say, members are happy….. long might that continue. BUT, you must never place in more than you are prepared to lose (In SOMETHING). However do correct analysis, ask

members, don’t rely on people that play safe and stay poor. Do your own due diligence. (ps MOST sites that decision each business out as a scam…have their own links…..promoting guess what ? ….tip. SCAMS ! Beware.

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Creamcoin 0.18.0.0 – following Bitcoin’s tale

Creamcoin 0.18.0.0 – following Bitcoin’s tale

06/08/2019 3 min read📷216SHARES216VIEWSShare on Twitter
When new Creamcoin was designed, we had in mind not only a coin that would hold parity with any cryptocurrency, but something that would demonstrate the extra-special capabilities of a decentralized ledger, capable to introduce, help and bring it further to the regular people. Blockchain developing is unstoppable complex process with endless possibilities. Integration of applications on such a technology could achieve better, secure pass of value.
0.18.0.0

On August 5th, 2019 Creamcoin code was successfully updated to the latest Bitcoin version 0.18.0
https://github.com/creamcoin/cream/
With this latest release, we proved that Creamcoin itself it’s not a sort of a tenant to the Bitcoin. Much easier to apply and to pursue the main purpose of existence and to create further innovations in our Cream Line. The new release brings tremendous performance improvements, as well as integration will be much easier for any platform, exchange or integrator. Wallets are available to Releases tab on github
WALLETS

Multi-wallet support

Cream Core now supports loading multiple, separate wallets. The wallets are completely separated, with individual balances, keys and received transactions. Multi-wallet is enabled by using more than one -wallet argument when starting Creamcoin, either on the command line or in the Cream config file. In Creamcoin-Qt, only the first wallet will be displayed and accessible for creating and signing transactions. GUI selectable multiple wallets will be supported in a future version. This feature will continue to be refined with later updates, as there are still some known issues in using the GUI to access the “multiwallet” command. The most notable is that you can’t use coin control features with multiple wallets loaded, or else you will likely retain the wrong wallet when attempting to switch wallets.
When running Cream Core with multi-wallet, wallet-level RPC methods must specify the wallet for which they’re intended in every request. HTTP RPC requests should be send to the :/wallet// endpoint, for example 127.0.0.1:8332/wallet/wallet1.dat/. bitcoin-cli commands should be run with a -rpcwallet option, for example [bitcoin-cli -rpcwallet=wallet1.dat getbalance] A new node-level [listwallets] RPC method is added to display which wallets are currently loaded. Starting command for both wallets should look like this: [creamd -daemon -wallet=wallet1.dat -wallet=wallet2.dat]

Hardware Wallet native compatibility

With a new release of Cream Core the possibility is added in the form of use hardware wallets (Ledger, Trezor, Digital BitBox, KeepKey, Coldcard), but this process is manual and involves the use of Hardware Wallet Interaction (HWI) tool and it needs HW support and addition of Cream in the future, which is not excluded from roadmap. This is a great news for everyone who use Cream Core, and want extra security. Only applies to those who can use command line/CLI (for now), and when some of Hardware wallets actually supports Cream.

SegWit 4MB limit

SegWit replacing the block size limit with a block “weight” limit, allowing up to 4 megabytes of transaction data, and giving a substantial boost in the transaction capacity of the Cream network.

www.creamcoin.com

In the same with the new code update, Creamcoin Team is doing major shifting power, migrating the marketing and promotion activities, from our news site cream.technology to our main page www.creamcoin.com. We will come up with additional statement in this matter, so our supporters and followers have better perspective of Cream Line and the products of it.
In the meantime we are looking into new ways that developers can enhance the capabilities of the Creamcoin protocol, integration of decentralized exchange functionality, lightning network and number of other options that would allow for different types of conditional sends of Creamcoin assets. We are inviting any individual, platform, exchange or integrator who would like to submit recommendations or feature requests, feel free to contribute to the Creamcoin Github.
By Cream Team
submitted by creamcointeam to u/creamcointeam [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]

Homelab collective ressources post!

Hey guys!
I'm fairly new to this sub and to having a home lab in general and I found this community to be so kind and helping, I wanted to give back what I've learned. I'm seeing a lot of questions asked around on improvements and on what to do with x extra hardware so I thought it would be nice to have a thread to regroup that.
 
I'll put here some stuff I gathered and the most common questions I've seen, feel free to contribute and i'll update the post along.
 
Latest Additions
 
Homelab Dashboard
Posts about dashboards have been growing lately and here are some of the best that were kind enough to provide us with their sources.
User Screenshot Source
yours truly http://imgur.com/a/GhCNH https://github.com/Gabisonfire/dashboard-q
lastditchefrt http://i.imgur.com/5zQdao4.png https://github.com/d4rk22/Network-Status-Page
_SleepingBag_ http://i.imgur.com/Ql9ZM4W.png https://github.com/jsank/homelabdash
NiknakSi https://niknak.org/extras/sysinfo TBA
DainBramaged http://imgur.com/jYNlUEQ https://github.com/gordonturneBigBoard
michaelh4u https://i.imgur.com/XkZwMKj.png https://github.com/michaelh4u/homelabfrontpage
spigotx http://imgur.com/a/1zMht https://github.com/spigotx/HomeLab2
SirMaster https://nicko88.com/ https://github.com/dashbad/plex-server-status
yourofl10 http://imgur.com/a/AyROa TBA
TheBobWiley http://imgur.com/a/oU6d3 https://github.com/TheBobWiley/ManageThis-LandingPages
0110010001100010 http://i.imgur.com/iwtQcsL.jpg https://github.com/danodemano/monitoring-scripts
mescon & SyNiK4L https://i.imgur.com/gqdVM6p.jpg https://github.com/mescon/Muximux
ak_rex http://i.imgur.com/a/RJkrT https://github.com/ak-rex/homelab-dashboard
 
Or build yours from scratch: PRTG API, ELK, Grafana, freeboard, JumpSquares
 
Some other resources: Custom Monitoring Scripts by 0110010001100010
 
Credits to apt64 for his original post
= Pi specific =
 
= Download Automation =
 
= Virtualization =
 
= Monitoring =
 
= Media Center =
 
= Remote access =
 
= VOIP =
 
= Networking =
 
= File Servers/Storage/RAID =
 
= Cameras =
 
= Documentation =
 
= Dynamic DNS =
 
= Backup =
 
= Creating network diagrams =
 
= Guides =
 
= Misc =
 
That's all I could come up with on top of my head + some research, passing over to you guys so we can get a nice complete list!
 
Let's try and stick with free(or mostly) softwares, let me know if you guys feel otherwise.
submitted by Gabisonfire to homelab [link] [comments]

Groestlcoin June Development Update & Release!

Another Quarter, Another Release! The Groestlcoin production factory has been working overtime as always in order to deliver even more tech to push Groestlcoin mainstream when the time comes.
There have been many new fantastic wallets and exchanges added to Groestlcoins repertoire over the past 3 months so we will re-cap these before moving on to what is new today.

Recap

What's New

Re-forged: Groestlcoin Samourai

Groestlcoin Samourai is a wallet for the streets. A modern Groestlcoin wallet hand-forged to keep your transactions private, your identity masked, and your funds secure. Its main advantages are its extreme portability and is the most secure Groestlcoin mobile HD wallet.
We've built a wallet that Groestlcoin deserves. If you are looking for a wallet that Silicon Valley will never build, the regulators will never allow, and the VC's will never invest in, this is the perfect wallet for you.
![Groestlcoin Samourai Release Video](http://img.youtube.com/vi/i3WU8Tde8XQ/0.jpg)

Head over to the Groestlcoin Samourai Release Page here for the full release announcement.

New: GroestlImage

Groestlimage turns any file into a mnemonic phrase allowing users to generate Groestlcoin private keys and addresses based on the data URI of the provided file. A picture is worth a thousand Groestls.

Features:

Link

https://groestlcoin.org/groestlimage/

Source Code

https://github.com/Groestlcoin/groestlimage

New: Groestlcoin Core Config Generator

Groestlcoin Core Config Generator is a simple GUI to configure the groestlcoin.conf file – A developers dream tool!
Each configuration option is available via the user interface, grouped by what attributes they affect. For ease of getting started with a new configuration, a variety of preset "node classes" are available on the right-hand-side of the screen. Selecting a preset will load our recommended base configuration for a node fitting that description, at which point you can then tune the configuration at the single option level.

Features

Link

https://config.groestlcoin.org/

Source Code

https://github.com/Groestlcoin/groestlcoin-core-config-generator

New: Groestlcoin Dumb Block Explorer

Dumb Block Explorer is a trivial block explorer written in a single PHP file. Now everybody can run their own block explorer.

Features

Link

https://www.groestlcoin.org/explore

Source Code

https://github.com/Groestlcoin/dumb-block-explorer

New: Groestlcoin SMS Push TX

Groestlcoin Simple Push TX is a server to push Groestlcoin transactions via SMS. Now everybody can send new transactions via SMS if the Internet is not usable (i.e. blocked by government entities or becomes otherwise unavailable).

Features

Source Code

https://github.com/Groestlcoin/smspushtx

Update: Electrum-GRS 3.3.6

Electrum-GRS is Groestlcoins #1 thin-client for Windows, MacOS, Linux and Android, based on a client-server protocol. Supporting multi-sig wallets without the bloat of downloading the entire blockchain.

New Features (Universal)

New Features (Windows, MacOS, Linux)

New Features (Android)

Link

https://github.com/Groestlcoin/electrum-grs/releases/download
https://play.google.com/store/apps/details?id=org.groestlcoin.electrumgrs

Source Code

https://github.com/Groestlcoin/electrum-grs
submitted by Yokomoko_Saleen to groestlcoin [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]

Waltonchain All-in-One - Extended

Welcome!

I would like to warmly welcome everyone to waltonchain
This is an updated, extended community-written post and I will try to update it regularly over time.
Please respect our rules (see sidebar) and feel free to comment, contribute and ask questions.
Don’t forget to subscribe to the subreddit for any news on Waltonchain!
 

Getting Started

What is Waltonchain?

The Waltonchain Foundation is building a cross-industry, cross-data sharing platform by integrating Blockchain with the Internet of Things through self-developed RFID Chips with intellectual property rights.
The in-house developed Waltonchain RFID chips integrate a proprietary, genuine random number generator and an asymmetric encryption logic and hardware signature circuit, all of which are patent-protected.
The combination of self-developed RFID chips and the Waltonchain blockchain will ultimately achieve the interconnection of all things and create a genuine, believable, traceable businessmodel with totally shared data and transparent information.
Waltonchain will unfold a new era of the Value Internet of Things (VIoT).
 
Waltonchain Introduction Video
Launch of Waltonchain
 

The Project

The Waltonchain team has formulated a 4-phase development plan, starting from infrastructure platform establishment to gradually incorporating retail, logistics and product manufacturing, and to finally achieving the full coverage of the business ecosystem.
 
As for the phase 1.0 of the project, the team has developed the clothing system integration scheme based on RFID. The application scenarios at phase 1.0 will establish Golden demonstration template
At phase 2.0, our RFID beacon chip will be massproduced and can be used in clothing, B2C retail and logistics.
At phase 3.0, manufacturers will achieve traceable customization of intelligent packaging.
At the project phase 4.0, with the upgrading and iteration of assets information collection hardware and improvement of blockchain data structure, all assets can be registered in Waltonchain in the future.
 
Original Roadmap Thread

Project-Updates:

Video: WTC-Garment System by Waltonchain & Kaltendin
Video: WTC-Food System by Waltonchain
 

Official Resources

Waltonchain Whitepaper
Waltonchain Official Website
Waltonchain Github
 
Official Official Medium
Official Slack
Official Instagram
Official Facebook
Official Twitter @waltonchain
Official Telegram @waltonchain_en
 
Dedicated community Telegram channel for Waltonchain miners, MN & GMN holders.
@WaltonchainMining
 
 
Chinese Community
本群为沃尔顿链华文官方社群
Chinese Telegram @waltonchain_cn
官方网站 - Waltonchain China - Website
 
Korean Community
공식사이트 - Waltonchain Korea - Website
카카오톡 - Waltonchain Korea - Kakao
트위터 - Waltonchain Korea - Twitter
블로그 - Waltonchain Korea - Naver Blog
인스타그램 - Waltonchain Korea - Instagram
Freyr 공식텔레그램방(한국) - Freyrchain Korea - Telegram
Communities in Progress
Russian Twitter @waltonchain_ru
Russian Website
Japanese Twitter @waltonchain_jp
Japanese Website
Brazilian Twitter @waltonchain_br
 

Waltonchain Wallet

Please note that before the token swap,
DO NOT transfer your ERC20 WTC tokens to the WTC wallet!!
 
Wallet for PC (Github)
Web Wallet - Instruction Manual
Windows Wallet - User Manual
Windows Wallet - Tutorial Video
Wallet for Android
Google Playstore
Github
Android User Manual
Android Wallet - Tutorial Video
 
Wallet for IOS
(pending Apple Store approval)
 
Explorer
Waltonchain Explorer
Waltonchain Blockchain Explorer User Manual
 
Mining
Waltonchain GPU Mining User Manual
Waltonchain Progressive Mining Reward Program
 
Unofficial
Unofficial Guardian Masternode Tracker
waltonchain.tech - Unofficial collection of news and useful resources

The Foundation

>> Waltonchain Organizational Chart <<<--
 
Waltonchain Foundation Ltd. (Singapore) - 沃尔顿链
Waltonchain (HK) Development Co. Ltd. (Head company)
Walton Chain Technology Co. Ltd. (Korea)
Silicon (Shenzhen) Electronic Technology Co. Ltd.
Silicon (Xiamen) Electronic Technology Co.Ltd. (RFID Chip Research)
Silicon (Quanzhou) Electronic Technology Co. Ltd.(IoT Intelligent Switch Chip)
Nanjing Sleewa Information Technology Co. Ltd. (Blockchain)
Quanzhou KEDIHENG Electronic Technology Co. Ltd
Xiamen IOT Technology Co. Ltd.
Xiamen Citylink Technology Co.Ltd.
Xiamen ZhongChuan IOT Industry Research Institute Co.Ltd.
 

The Team

Founder:

Do Sanghyuk (都相爀) – Initiator in Korea
Korean, Vice Chairman of the China - Korea Cultural Exchange Development Committee, Director of the Korea Standard Products Association, Chairman of Seongnam Branch of the Korea Small and Medium Enterprises Committee, Chairman of Korea NC Technology Co., Ltd., Senior Reporter of IT TODAY News, Senior Reporter of NEWS PAPER Economic Department, Director of ET NEWS.
 
Xu Fangcheng (许芳呈) – Initiator in China
Chinese, majored in Business Management, former Director for Supply Chain Management of Septwolves Group Ltd., has rich practical experience in supply chain management and purchasing process management. Currently, he is the Director of Shenzhen Silicon, the Director of Xiamen Silicon and the Board Chairman of Quanzhou Silicon. He is also one of our Angel investors.
 

Senior Experts:

Kim Suk ki (金锡基)
Korean, South Koreas electronics industry leader, Doctor of Engineering (graduated from the University of Minnesota), Professor of Korea University, previously worked at Bell Labs and Honeywell USA, served as vice president of Samsung Electronics, senior expert in integrated circuit design field, IEEE Senior Member, Vice President of the Korea Institute of Electrical Engineers, Chairman of the Korea Semiconductor Industry Association. Has published more than 250 academic papers with more than 60 patents.
 
Zhu Yanping (朱延平)
Taiwanese, China, Doctor of Engineering (graduated from National Cheng Kung University), Chairman of the Taiwan Cloud Services Association, Director of Information Management Department of National Chung Hsing University. Has won the Youth Invention Award by Taiwan Ministry of Education and Taiwan Top Ten Information Talent Award. Has deeply studied blockchain applications over the years and led a block chain technology team to develop systems for health big data and agricultural traceability projects.
 

Chief Experts

Mo Bing (莫冰)
Chinese, Doctor of Engineering (graduated from Harbin Institute of Technology), Research Professor of Korea University, Distinguished Fellow of Sun Yat - sen University, Internet of Things expert, integrated circuit expert, Senior Member of Chinese Society of Micro-Nano Technology, IEEE Member. Has published more than 20 papers and applied for 18 invention patents. Began his research of BitCoin in 2013, one of the earliest users of btc 38.com and Korea korbit. Served as Technical Director of Korea University to cooperate with Samsung Group to complete the project Multi sensor data interaction and fusion based on peer to peer network. Committed to the integration of block chain technology and Internet of Things to create a real commercialized public chain.
 
Wei Songjie (魏松杰)
Chinese, Doctor of Engineering (graduated from the University of Delaware), Associate Professor of Nanjing University of Science and Technology, Core Member and Master Supervisor of Network Space Security Engineering Research Institute, Block Chain Technology expert in the field of computer network protocol and application, network and information security. Has published more than 20 papers and applied for 7 invention patents. Previously worked at Google, Qualcomm, Bloomberg and many other high-tech companies in the United States, served as R D engineer and technical expert; has a wealth of experience in computer system design, product development and project management.
 

Core Members

Shan Liang (单良)
Graduated from KOREATECH (Korea University of Technology and Education) Mechanical Engineering Department, Venture Capital PhD, GM of Waltonchain Technology Co., Ltd. (Korea), Director of Korea Sungkyun Technology Co., Ltd., Chinese Market Manager of the heating component manufacturer NHTECH, a subsidiary of Samsung SDI, economic group leader of the Friendship Association of Chinese Doctoral Students in Korea, one of the earliest users of Korbit, senior digital money player.
 
Chen Zhangrong (陈樟荣)
Chinese, graduated in Business Management, received a BBA degree in Armstrong University in the United States, President of TIANYU INTERNATIONAL GROUP LIMITED, leader of Chinese clothing accessories industry, Chinas well-known business mentor, guest of the CCTV2 Win in China show in 2008. Researcher in the field of thinking training for Practical Business Intelligence e-commerce and MONEYYOU course, expert on success for Profit Model course. Began to contact Bitcoin in 2013 with a strong interest and in-depth study of digital money and decentralized management thinking. Has a wealth of practical experience in the business management, market research, channel construction, business cooperation and business model.
 
Lin Herui (林和瑞)
Chinese, Dean of Xiamen Zhongchuan Internet of Things Industry Research Institute, Chairman of Xiamen Citylink Technology Co., Ltd., Chairman of Xiamen IOT. He successively served as Nokia RD Manager and Product Manager, Microsoft Hardware Department Supply Chain Director. In 2014, started to set up a number of IoT enterprises and laid out the industrial chain of the Internet of Things. The products and services developed under his guidance are very popular. Assisted the government in carrying out industrial and policy research and participated in planning of multiple government projects of smart cities, IoT towns and project reviews.
 
Ma Xingyi (马兴毅)
Chinese, China Scholarship Council (CSC) special student, Doctor of Engineering of Korea University, Research Professor of Fusion Chemical Systems Institute of Korea University, Korea Sungkyun Technology Co., Ltd. CEO, Member of Korea Industry Association, Associate Member of the Royal Society of Chemistry, has published his research results in the worlds top journal Nature Communications and participated in the preparation of a series of teaching materials for Internet of Things engineering titled Introduction to the Internet of Things. His current research direction covers cross-disciplines that combine blockchain technology with intelligent medical technology.
 
Zhao Haiming (赵海明)
Chinese, Doctor of Chemical Conductive Polymer of Sungkyunkwan University, core member of Korea BK21th conductive polymer project, researcher of Korea Gyeonggi Institute of Sensor, researcher of Korea ECO NCTech Co., Ltd., Vice President of the Chinese Chamber of Commerce, Director of Korea Sungkyun Technology Co., Ltd. He has been engaged in transfer of semiconductor, sensor and other technologies in South Korea. He is an early participant of the digital currency market.
 
Liu Cai (刘才)
Chinese, Master of Engineering, has 12 years of experience in design and verification of VLSI and a wealth of practical project experience in RFID chip design process, SOC chip architecture, digital-analog hybrid circuit design, including algorithm design, RTL design, simulation verification, FPGA prototype verification, DC synthesis, backend PR, package testing, etc. Has led a team to complete the development of a variety of navigation and positioning baseband chips and communication baseband chips, finished a series of AES, DES and other encryption module designs, won the first prize of GNSS and LBS Association of China for scientific and technological progress. Finally, he is an expert in the consensus mechanism principle of blockchain and the related asymmetric encryption algorithm.
 
Yang Feng (杨锋)
Chinese, Master of Engineering, worked at ZTE. Artificial intelligence expert, integrated circuit expert. Has 12 years of experience in VLSI research and development, architecture design and verification and 5 years of research experience in artificial intelligence and the genetic algorithm. Has won the Shenzhen Science and Technology Innovation Award. Has done an in-depth research on the principle and realization of the RFID technology, the underlying infrastructure of blockchain, smart contracts and the consensus mechanism algorithm.
 
Guo Jianping (郭建平)
Chinese, Doctor of Engineering (graduated from the Chinese University of Hong Kong), Associate Professor of the Hundred Talents Program of Sun Yat-sen University, academic advisor of masters degree students, IEEE senior member, integrated circuit expert. Has published more than 40 international journal conference papers in the field of IC design and applied for 16 patents in China.
 
Huang Ruimin (黄锐敏)
Chinese, Doctor of Engineering (graduated from the University of Freiburg, Germany), academic advisor of masters degree students, lecturer of the Department of Electronics of Huaqiao University, integrated circuit expert. Mainly explores digital signal processing circuit and system implementation and works on digital signal processing technology long-term research and development.
 
Guo Rongxin (郭荣新)
Chinese, Master of Engineering, Deputy Director of the Communication Technology Research Center of Huaqiao University. Has more than 10 years of experience in design and development of hardware and software for embedded systems, works on the long-term research and development of RFID and blockchain technology in the field of Internet of Things.
 
Dai Minhua (戴闽华)
Chinese, graduated in Business Management, received a BBA degree from Armstrong University, senior financial expert, served as Vice President and CFO of Tanyu International Group Co., Ltd. Has 13 years of financial work experience, has a wealth of experience in developing and implementing enterprise strategy and business plans, as well as achieving business management objectives and development goals.
 
Liu Dongxin (刘东欣)
Chinese, received an MBA from China Europe International Business School, Visiting Scholar of Kellogg School of Management at Northwestern University, strategic management consulting expert, investment and financing expert. His current research interest lies in the impact of the blockchain technology on the financial sector.
 

Angel Investors

Song Guoping (宋国平)
Qiu Jun (邱俊)
Yan Xiaoqian (严小铅)
Lin Jingwei (林敬伟)
He Honglian (何红连)

Advisory Team

Ko Sang Tae (高尚台)
Liu Xiaowei (刘晓为)
Su Yan (苏岩)
Zhang Yan (张岩)
Ma Pingping (马萍萍)
Peng Xiande (彭先德)
Fu Ke (傅克)
Xiao Guangjian (肖光坚)
Li Xiong (李雄)
 
The Team (pt.I)
The Team - The Engineers (pt. II)
The Team - Angel Investors & Advisors (pt. III)
WaltonChain Office Tour
Meet the team #1: Xu Fangcheng
Meet the team #2: South Korean Team
Meet the team #3: Wei Songjie
Meet the team #4: Suk Ki Kim
Meet the team #5: Lin Herui
Meet the team #6: Bing Mok (CEO)
 

Partnerships, Affiliations & Corporate Interests

Government Affiliations
Fujian IoT Industry Association
Air purification and smart monitoring project with Jinhu Provincial Government
"Smart Oceans" blockchain R&D project with Fujian Provincial Government
Building "Blockchain Silicon Valley" with Taiwan Cloud and Fujian Provincial Government
KISA and Korean IoT research centre
Taiwan Cloud Association
Korea University engineering department
Korea Blockchain Enterprise Promotion Association (authorized by South Korean National Assembly)
 
Smart Logistics / Smart Warehouse
Xiangyu Group
Fuyao Glass Industry Group co., Ltd
Kehua
Lipson Plastic
NanKang City Furniture industry
Direct delivery
Fujian Soonbox Logistics Park
Huodull Technology
 
Smart Retail
Guangdong Original Clothing Trading Center
Shenzhen M&A Association of Listed Companies
Septwolves
Fuguiniao
SMEN
TANYU
JoeOne
Lalabobo
Ishijah
Kaltendin
 
Technical Alliance
Alibaba Cloud
China Mobile IoT Alliance
Xiamen Branch of China Telecom Corporation Limited
Zhangzhou Branch of** China Telecom** Corporation Limited
NC Technologies
Shenzhen Card Cube Smart Technology co., Ltd
NIDS Sensor Technology
Sungkyun Technologies
NH Tech
Jiangsu Zhongke Internet of Things Technology Venture Capital Co., Ltd.
Fujian C-TOP Electronics co., Ltd.
 
Finance
Sinolink Securites
Gingko Capital (Investment Arm of Waltonchain) -> Investments
Gingko Investment List on Reddit
 
Blockchain Partner
Mobius
Freyrchain
Loci
Coinlink
SwftCoin
Morganchain
Aston
 
Media Partner
JU&KE Creative Design
Yunnan Yunshanghuaxia Trading co., Ltd.
ArtCrypto
Fanfangxiang Culture & Media co., Ltd.
 
Waltonchain Government Affiliations Infographic
Waltonchain Business Affiliations Infographic
Summary of Some of Waltonchain's Government and Business Partnerships
 
Child Chains
Freyrchain - Freyrchain - The world’s first blockchain-based collectibles data authenticity platform
Fashionchain Fashionchain - Fashionchain restructures the strongly-centralized pyramid structure inherent in the fashion industry ecology into a decentralized structure in which all parties connect point to point directly.
 
Click here for the News, PR & Awards Thread.
Click here for a Timeline of Official - Waltonchain-Medium - Posts.
 
Videos
Waltonchain Annual Meeting Presentation Video
Waltonchain Introduction Video
Waltonchain Visit and Product Demo! (Part 1 of 2) - Boxmining
Waltonchain Interview and Demo (Part 2 of 2) - Boxmining
Waltonchain Coinnest Meetup with Mo Bing
Dr. Mo Bing's First Live Interview with Coinnest CEO
Waltonchain CEO Mo Bing announcing the official launch of Waltonchain Mainnet
List of AMAs
First Reddit AMA - October 1, 2017
Technical AMA - October 9, 2017
Hardware AMA Summary - October 17,2017
Extended Hardware AMA - October 24, 2017
Retail Demo AMA - November 27, 2017
Masternode AMA - December 7, 2017
Slack AMA Live Thread - January 3, 2018
Waltonchain Beta Release AMA Part 1 - January 5, 2018
Waltonchain Beta Release AMA Part 2 - January 15, 2018
Waltonchain February Q&A - February 18, 2018
Waltonchain March AMA Part 1 - March 19, 2018
Waltonchain March AMA Part 2 - March 27, 2018
Progress Reports
Waltonchain Work Progress in Q2 2018
Waltonchain Work Progress in Q1 2018
Waltonchain: New Logo · New IC strategy ·New Journey!
The Summary of Waltonchain in 2017
Waltonchain Project Progress Report (Nov. – Dec. 2017)
Professor Kim Suk Ki Arrived at Xiamen for Project Review and to Provide Guidance
A letter to the waltonchain family
A Letter from Waltonchain Foundation
Waltonchain Alpha Version Internal Testing
Noteworthy Posts
Waltonchain’s Bigger Picture: OBOR
Waltonchain: Ushering an Era of IoT Mass Market Adoption
What is Waltonchain and Why Should We Care?
Waltonchain and the Chinese Government: Cooperation, Collaboration and a Bright Future
Top 5 Cryptocurrencies Set For Success In 2018 - Invest in Blockchain
 
Exchanges
Binance, Coinnest, HitBTC, LATOKEN, OKEx, Kucoin, COSS, Coinlink, Allcoin, Coinrail, Cobinhood, Huobi
 

Frequently Asked Questions

 
 
Walton Knights
u/fent11
u/NetworkTraveler
u/yayowam
u/Crypto_RALLY
u/TheSideQuest
RikkiTikki (slack)
Crypto Buff (telegram)
submitted by istaan69 to waltonchain [link] [comments]

Basic Bitcoin security guide

Hello,
This post is to give you a quick introduction into Bitcoin security. While nobody can guarantee you 100% security, I hope to mitigate some problems you can run into. This is the “20% of effort to get you to 80% safe”.
First of all, you have to determine how much money you want to hold in Bitcoin and how much effort are you willing to put in. If you are happy just holding a few dollars worth and don’t care if you lose them, that’s one approach to take. For everyone else, lets get started.
Password strength
A lot of the times how secure your money is will be determined by the strength of your password. Since in the worst case scenario we are talking about someone trying to brute force your wallet, casual online passwords are too weak. Under 10 characters is too weak. Common words and phrases are too weak. Adding one number to a password at the end is too weak.
Moreover, you can consider your password much weaker if you:
If you want a really strong password:
Wallet security
Now we are getting to the meat of things.
There are a number of wallets available to store your hard earned bitcoins. If you have a decent amount of coins to store, you should look into software wallets - BitcoinQT, MultiBit, Armory or Electrum. They are among the best place to store your money safely (provided your computer is secure as well). Chose one you think best suits you, install it and encrypt your wallet file with your strong password. You should take your wallet file and back it up (location of the file is different for different clients, so you have to do some research as to where to find that file). Back it up on a CD, safe USB drive or the like. Keep them safe. If you lose that file, you will lose your money.
A quick word on deterministic wallets. Electrum and Armory allow you to create wallets from a seed. If you use the same seed later, you can recreate your wallet on other machines. With deterministic wallets, you only need to keep that seed secure to have access to your money.
In comparison, in BitcoinQT's traditional wallet, every address you use is random, meaning that after you send 50-100 outgoing transactions your backups can be obsolete. Always keep an up-to-date backup of such wallet file if possible.
Okay, sometimes you need to have your Bitcoins with you when you leave your computer. In this case, you should look into either online or mobile wallets. A staple for both of those is Blockchain.info, but there are others to chose from.
A good rule of thumb with these is to not store more money in them than you can afford to lose. They are best used as a convenient way of accessing some money, not storing your savings. Online wallets are especially vulnerable to their servers getting hacked and people’s money getting stolen.
What to keep in mind while using online wallets:
  • Use a secure password (the more money you have in them the stronger the password should be)
  • Always keep a backup of your wallet in case you need to recover your money
  • Whenever possible, enable two factor authentication
  • Don’t use your online wallets from unsafe computers
Cold storage
Sometimes you want to store your bitcoins for a long time in a safe place. This is called “cold storage”. There are a few ways one can do this.
First of all, paper wallets. They are nice for giving people small bitcoin gifts, but also for long-term storage if properly used. What you want to do is generate and print them offline. You can save the linked page for example and run that offline. If you are really paranoid, you can put it on read-only media and access that from a different computer. For really long term storage, use archival-grade paper.
Another approach to take is using a separate computer for storing your money that is offline 99+% of the time. You could set one up easily by buying an old laptop, reformatting it, installing Linux and a Bitcoin client. Generate an address on that machine and send money to it from your main wallet. Depending on how paranoid you are you can connect that computer to the Internet afterwards to synchronize data with the Bitcoin Network and then turn it off and put it away somewhere safe until it’s needed.
Brain wallets
Don’t. They are not for you. Unless you are a security-conscientious programmer, those are not for you.
Diversifying
Keeping all of your eggs in one basket is never a good thing. You should look into diversifying some of your Bitcoin assets in case your other storage methods fail. Some ways you can diversify:
  • Buy a physical Bitcoin. As long as you trust the coin creator such coins can be an effective cold storage
  • Invest - I wouldn’t recommend this for more than some trivial amount unless you know what you are doing, but investing in some Bitcoin stocks could be a way to get more money out of your bitcoins
How not to diversify:
  • Avoid keeping your bitcoins at exchanges or other online sites that are not your online wallets. Such sites can be closed down or disappear along with your money.
  • Alt-coins - there are few cryptocurrencies that are worthwhile, but most of them are just Bitcoin clones. If a currency brings nothing new, it’s worthless in comparison to Bitcoin. Namecoin is a distributed domain name server (although recently it had a fatal flaw uncovered, so be warned), Ripple is a distributed currency exchange and payment system. Litecoin will only be useful in case Bitcoin’s hashing algorithm gets compromised (very unlikely at this time). Beyond that there are few if any alt-coins that are a worthwhile way of diversifying.
Accepting payments and safety
We’ve covered safe ways to store money, now a quick note about bitcoin payments and their safety.
First of all, when you are sending a transaction, pay your fees. Transactions without fees can take forever to propagate, confirm and clear. This can cause you a lot of stress, so pay your fees.
Secondly, when accepting large Bitcoin payments (say you want to suddenly cash in a gold bar into bitcoins), wait for at the very least 1 confirmation on those transactions. 6 is best, but having even 1 confirmations is a lot better than having none. This is mainly a rule of thumb for the paranoid (I wouldn’t be doing this for most casual transaction), but maybe it will save you if you are dealing with some shady people.
Wrapping up...
That should cover the basics. If you want to read more about Bitcoin’s security in general, here is my master thesis on the subject. A lot of questions about Bitcoin and security have also been answered on Bitcoin StackExchange - be sure to check it out.
Comments and improvement suggestions welcome.
EDITS:
  • Removed link to insecure site
  • Removed random article section
  • Added information about deterministic wallets
submitted by ThePiachu to Bitcoin [link] [comments]

TIL why Newbies still download the Bitcoin-QT client!

Because we told them to. Newbies don't start with reddit or bitcoinforums (unless they are redditors, of course). They start with what looks like an authoritative source. (And journalists do the same.) Let's have a look.
Bitcoin.org has a list of wallets and recommends two good options at the top, MultiBit or Schildbach, but if you take a look at the bottom, it prominently lists: Bitcoin-QT and Armory (which requires Bitcoin-QT/bitcoind). This is fine, I suppose, but it explains the popularity of Bitcoin-QT since most alternatives come with warnings.
weusecoins, a website that is prominently featured as a first stop for newbies, sends users dierectly to Bitcoin-QT, without any explanation or alternatives.
Bitcoin Wiki same same
This guarantees some bad user experience. Can we fix it? Who edits weusecoins.com and bitcoin.it?
submitted by arbeitslos to Bitcoin [link] [comments]

After NiceHash hack yesterday, I came up with this idea of a multicurrency GUI miner. Posting it here for discussion.

MultiHash - A multicurrency round-robin easy-to-use crypto miner

I will be honest, my first serious attempt at altcoin mining was using Minergate. I thought it was very cool how it could automatically determine what currency to mine from a pool of multiple currencies. Then as I started doing more research and started trying out different miner software to compare different stats and customizability, I realized Minergate was basically using all of my CPU and showing me less than half the number of hashes per second I can get using only 50% of my CPU. I stopped using Minergate and started using individual miner software per altcoin, even sometimes switching between two miners of the same currency, just to donate the devs who have worked hard for making his mining software. But it was kind of a redundant process everytime I wanted to try out some different configuration and version or even a new alternate mining software. Enter NiceHash. My life kinda changed, I became lazy. I'd just click start and forget. It brought the convenience of mining to an average user's reach. I really loved NiceHash. I thought their idea was unique and really cool. But after the latest hack, I think there should be an alternative to NiceHash, for the ones who want to mine different altcoins. I have not thought about it very thoroughly as I probably lack the required all the knowledge, but I've come up with a concept I'd like to share with the community.
MultiHash (I could not come up with a better name, feel free to change it to whatever you want), in principle, will be a little different from what NiceHash was. It is more like a convenient way to configure and mine using the individual mining software for different currencies in their respective pools. Here is how I think it'll work:

The Framework:

The following 3 bodies need to work together to make this work: 1. The MultiHash GUI: * Preferably made using a cross-platform toolkit like Qt (preferred) or Electron. * Simple setup requires 1 BTC address. Advanced setup can be done for per currency wallets. * An inbuilt interface for benchmarking all the supported mining software. * Option to auto mine the most profitable currency within user selected time frame. * Option to mine user selected currencies in a round-robin or fixed schedules. * Show detailed pool stats * [Advanced] adding custom pool address * [Advanced] adding custom miner with their own config file * Extras 2. The Pools: * All pools selected should have a proper API which provides user stats like balance, hashes etc. * At first 4-5 pools per currency should be preconfigured in MultiHash. * Extras 3. The Exchange: * Proper API to do the transaction with the MultiHash GUI. * Proper API to generate/access wallet address for each currency. * Extras 

Detail Workflow:

1. The user installs the MultiHash GUI and provides his bitcoin address. * Advanced users may skip and add their own currency wallet address if they don't want to get paid in BTC 2. The MultiHash GUI generates corresponding other currency wallets in the exchange. (registration may be required?) * Not required if the user opted for per currency wallet of their own. 3. The auto mining will mine profitable currency as per users hardware benchmarks. * Advanced users may select what to mine and the pool to mine in. * Pools might be switched depending on the ratio of the hash power of the pool and total hash power of the whole coin network. or Roundrobin. * Pools will provide balance, hashes submitted, current pool hash rate data etc. through their API. 4. The pool will pay to the exchange wallet. the user can see his exchange balance in MultiHash GUI separately, from his pool balance. * Pool pays directly to user wallet if the user opted not to use the exchange. 5. The user chooses to convert all currency to bitcoin. 
I am just an average user interested in crypto. I am also not saying people should not use NiceHash (I probably won't anymore myself). I had a little bit of free time, so I decided to write down my thought. It may very well be a dumb idea, or maybe there are complexities in the process I don't know about. So please take this as just an idea and provide your feedback if you think something needs a correction. Also, if someone is interested in making this project a reality please let me know. I'd like to be a part of the journey.
submitted by patraanjan23 to CryptoCurrency [link] [comments]

Groestlcoin Release September 2018

Introduction

As always, the past 3 months since 22nd June have been crazy busy. The bears might still be around, but the show must go on and of course has not slowed the Groestlcoin development team in the slightest. Here’s a quick overview of what has already happened since the last release: - Integrated into the bitbns exchange, with the ability to buy Groestlcoin directly with the Indian Rupee. - Groestlcoin Rebrand Vote – Whilst there was much talk and push for a rebrand vote, the overall result was almost unanimously in favour of keeping our unique and conversation-starting name. With just 83 votes to Rebrand, and 2577 votes to No Rebrand. Thank you for all who voted, the funds raised are being used to fund ongoing hosting and development costs. - Integrated into the Cryptobridge exchange. Cryptobridge is a popular decentralised exchange where you always hold the private keys to your funds, only YOU have access to them. - Groestlcoin has been added to SimpleSwap – Groestlcoin can now be swapped with over 100 other cryptocurrencies, without signing up! - Groestlcoin has been added to UnoDax, one of the leading cryptocurrency exchanges in India, with TUSD, BTC and INR trading pairs. - Groestlcoin has been added to SwapLab.cc, where you can buy Groestlcoin using Bitcoin and over 50 other altcoins. Purchasing with VISA/Mastercard is coming VERY SOON. Discussed later: - Groestlcoin has been listed on #3 largest exchange in the world on volume, Huobi Global! More on this to come further on in the announcements. - Groestlcoin has been added to the Guarda Multi-Currency Wallet. - Groestlcoin has been added to Melis Multi-Device, Multi-Account, Multi-Platform, Multi-Signature advanced wallet! Already this list is far more than most other cryptocurrencies have achieved in the past 3 months. But this is just the tip of the iceberg of what has been developed.

What's been Happening?

GRSPay Released

We are so excited for this, that it has it's own separate reddit thread. Head over there now at https://www.reddit.com/groestlcoin/comments/9ikr5m/groestlcoin_releases_grspay/? to see more on this!
https://www.melis.io/assets/logo-navbar-4b6f0d372f15b2446d3fa4c68f346e4fb08ee113941186cee58fd6135f3f8b7d.svg

Melis Wallet

The the most advanced wallet for Bitcoin, Bitcoin Cash, Litecoin and now Groestlcoin.
With Melis you have the complete control of your bitcoins and private keys, you can define spending limits policies and make use of two or more factors authentication. Melis is open source, published on GitHub.

How Melis Works?

You can create as many accounts as you want. An account is a part of your wallet that can be customised to your requirements. You can choose how many co-signers are required to spend funds. The accounts are completely independent and act like separate wallets from each other but can be accessed via the same details. A core feature of Melis is the ability to set a ‘primary’ device. With this you can set an account as ‘Secure’ so it is only viewable (and accessible at all) from the Primary device. You can have a savings account hidden from the outside world whilst also having your ‘spending’ funds available on the go. With Melis you can create a multi-signature account between N people, where up to N signatures are required to sign a transaction, choosing if any of those should be mandatory.
Core Features:
https://guarda.co/assets/images/1PGo4ID.svg?1537791124643

Guarda Wallet

Safer than ever! Desktop Light Wallet - Anonymous and fast!
With Guarda Multi-currency Desktop Light Wallet you don’t need to register. Guarda has no access to your private keys or funds. You can receive, send, store, buy and exchange cryptocurrencies in complete anonymity and safety. All these features are available on Linux, Windows or MacOS. Choose the one that suits you!
More info about Guarda wallet on www.guarda.co
https://holytransaction.com/images/logo.png

Integrated into HolyTransaction

What is HolyTransaction?

HolyTransaction gives users access to the crypto world with a universal cryptocurrency wallet and instant exchange.

Features

For more information, visit Holy Transaction here.
https://www.groestlcoin.org/wp-content/uploads/2018/09/next-grs-groestlcoin.jpg

Integrated into NEXT Wallet

What is NEXT?

NEXT is a modern, next-generation stylish open-source Desktop wallet.

Features

For more information, visit NextWallet here.
https://blockchainfinancial.com/mediaserve2018/09/admin-06143647-bcf_logo_vec_256x256.png

Integrated into Blockchain Financial

What is Blockchain Financial?

Blockchain Financial is a set of web based services for individuals and companies that want to make things happen with the Cryptocurrencies Ecosystem. - For those that don't know anything about cryptocurrencies, we offer tools that will let them receive, send and operate with an assortment of coins. - For those that are already riding the wave, we offer tools that will let them do all those things that they weren't able to do.

Blockchain Financials mission

We're not here to reinvent the wheel. We're here to make it run smoother for you, and we provide some of the most useful services you'll find on the internet, made in a way that is easy to understand and use on a daily basis. In short, we're a bunch of people that claim to be Crypto Evangelists. We strongly believe in cryptocurrencies, and our main promise is to push them up so more people get involved and take all the advantages they offer.

More information from Blockchain Financial

Back in 2014, the world was taken by storm when Facebook approved the first cryptocurrencies tipping apps. The first was for Dogecoin, and the second was for multiple coins.
The project was hosted on whitepuma.net, and persisted for almost two years, built up a massive user community and gave a home to Bitcoin, Litecoin, Dogecoin and dozens of other bitcoin-based altcoins.
After very active months, the tipping hype started to fade away. Then, the developers decided to jump into the next stage: bringing not only tipping, but also mining and a widget that could be embedded on websites to allow everyone to accept payments. Sadly, the work was never completed because the project started to require an unsustainable amount of resources. Then, in a painful decision, a shutdown was announced by December 2015.
A couple of months after whitepuma.net was closed, the source code was released by its creator as Open Source on GitHub. But it wasn't maintained.
Now, some of the original members of the dev and admin teams gathered up with a handful of the WhitePuma's elite users, and decided to make something good with the best pieces of the old source code. That, with fresh new ideas and the power of the BardCanvas engine, synthesized the core of Blockchain Financial.
More info about Blockchain Financial wallet on .
For more information, visit [Blockchain Financial](www.blockchainfinancial.com)
https://www.huobi.com/image/logo.aeb4723.svg

Groestlcoin Listed on Huobi

Who are Huobi?

Huobi was founded in China and is now based in Singapore, with offices in Hong Kong, South Korea, Japan and the North America, currently sitting #3 in volume on Coinmarketcap. Huobi is a great leap forward for our growing presence in Asia and we are very excited to be listed here!
You can find the official Huobi announcement here.

Groestlcoin Core v2.16.3 - Please Update ASAP

A new major Groestlcoin Core version 2.16.3 is now available for download which includes both a Denial of Service component and a critical inflation vulnerability, so it is recommended to upgrade to it if you are running a full Groestlcoin node or a local Groestlcoin Core wallet.
v2.16.3 is now the official release version of Groestlcoin Core. This is a new major version release with a very important security updates. It is recommended to upgrade to this version as soon as possible. Please stop running versions of Groestlcoin Core affected by CVE-2018-17144 ASAP: These are 2.13.3 and 2.16.0.
As a result in this, all exchanges and services have been asked to upgrade to this version, so please be patient if wallets go in to maintenance mode on these services.

What's new in version v2.16.3?

This is a major release of Groestlcoin Core fixing a Denial of Service component and a critical inflation vulnerability (https://nvd.nist.gov/vuln/detail/CVE-2018-17144) exploitable by miners that has been discovered in Groestlcoin Core version 2.13.3 and 2.16.0. It is recommended to upgrade to 2.16.3 as soon as possible. If you only occasionally run Groestlcoin Core, then it's not necessary to run out and upgrade it right this second. However, you should upgrade it before you next run it. If you know anyone who is running an older version, tell them to upgrade it ASAP. Stored funds are not at risk, and never were at risk. At this time we believe over half of the Groestlcoin hashrate has upgraded to patched nodes. We are unaware of any attempts to exploit this vulnerability. However, it still remains critical that affected users upgrade and apply the latest patches to ensure no possibility of large reorganizations, mining of invalid blocks, or acceptance of invalid transactions occurs.

The Technicals

In Groestlcoin Core 2.13.3, an optimization was added (Bitcoin Core PR #9049) which avoided a costly check during initial pre-relay block validation that multiple inputs within a single transaction did not spend the same input twice which was added in 2012 (Bitcoin Core PR #443). While the UTXO-updating logic has sufficient knowledge to check that such a condition is not violated in 2.13.3 it only did so in a sanity check assertion and not with full error handling (it did, however, fully handle this case twice in prior to 2.1.0.6). Thus, in Groestlcoin Core 2.13.3, any attempts to double-spend a transaction output within a single transaction inside of a block will result in an assertion failure and a crash, as was originally reported. In Groestlcoin Core 2.16.0, as a part of a larger redesign to simplify unspent transaction output tracking and correct a resource exhaustion attack the assertion was changed subtly. Instead of asserting that the output being marked spent was previously unspent, it only asserts that it exists. Thus, in Groestlcoin Core 2.16.0, any attempts to double-spend a transaction output within a single transaction inside of a block where the output being spent was created in the same block, the same assertion failure will occur. However, if the output being double-spent was created in a previous block, an entry will still remain in the CCoin map with the DIRTY flag set and having been marked as spent, resulting in no such assertion. This could allow a miner to inflate the supply of Groestlcoin as they would be then able to claim the value being spent twice.
Groestlcoin would like to publicly thank Reddit user u/Awemany for finding CVE-2018-17144 and reporting it (https://lists.linuxfoundation.org/pipermail/bitcoin-core-dev/2018-Septembe000064.html). You deserve gratitude and appreciation from cryptoworld, and you have ours. If you want to support him for his work, please consider donating to him on his bitcoin cash address: bitcoincash:qr5yuq3q40u7mxwqz6xvamkfj8tg45wyus7fhqzug5
http://i.imgur.com/3YhyNZK.png

Groestlcoin Electrum-GRS 3.2.2 - Ledger & Trezor Edition

What is Electrum-GRS?
Electrum-GRS is a lightweight "thin client" groestlcoin wallet Windows, MacOS and Linux based on a client-server protocol. Its main advantages over the original Groestlcoin client include support for multi-signature wallets and not requiring the download of the entire block chain.

Changes:

http://i.imgur.com/3YhyNZK.png

Electrum-GRS Mobile Android

What is Electrum-GRS Mobile?

Electrum-grs is a lightweight "thin client" groestlcoin wallet Android based on a client-server protocol. Its main advantages over the original Groestlcoin client include support for multi-signature wallets and not requiring the download of the entire block chain.

Changes

Groestlcoin EasyVanity Released

Groestlcoin EasyVanity is a Windows app is built from the ground-up in C# and makes it easier than ever before to create your very own bespoke Groestlcoin address(es), even whilst not connected to the internet! You can even generate multiple keys with the same prefix and leave it on overnight whilst your CPU or GPU collects and stores these addresses locally.
If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then Groestlcoin EasyVanity is the right choice for you to create a more personalized address.

Features

• Ability to continue finding keys after first one is found • Includes warning on startup if connected to the internet • Ability to output keys to a text file (And shows button to open that directory) • Ability to make your match case sensitive (Where possible) • Show and hide the private key with a simple toggle switch, and copy the private key straight to your clipboard • Show full output of commands • Includes statistics whilst the application is running • Ability to choose between Processor (CPU) and Graphics Card (GPU) • Automatically detects 32 or 64 bit systems • Features both a Light and Dark Material Design inspired Themes • EasyVanity's search is probabilistic, and the amount of time required to find a given pattern depends on how complex the pattern is, the speed of your computer, and whether you get lucky. • EasyVanity includes components to perform address searching on your CPU (vanitygen) and your OpenCL-compatible GPU (oclvanitygen). Both can be built from source, and both are included in the Windows binary package. • Prefixes are exact strings that must appear at the beginning of the address. When searching for prefixes, Easyvanity will ensure that the prefix is possible, and will provide a difficulty estimate. • The percentage displayed just shows how probable it is that a match would be found in the session so far. If it finds your address with 5% on the display, you are extremely lucky. If it finds your address with 92% on the display, you are unlucky. If you stop EasyVanity with 90% on the display, restart it, and it finds your address with 2% on the display, your first session was unlucky, but your second session was lucky. • EasyVanity uses the OpenSSL random number generator. This is the same RNG used by groestlcoin and a good number of HTTPS servers. It is regarded as well-scrutinized. Guessing the private key of an address found by EasyVanity will be no easier than guessing a private key created by groestlcoin itself. • To speed up address generation, EasyVanity uses the RNG to choose a private key, and literally increments the private key in a loop searching for a match. As long as the starting point is not disclosed, if a match is found, the private key will not be any easier to guess than if every private key tested were taken from the RNG. EasyVanity will also reload the private key from the RNG after 10,000,000 unsuccessful searches (100M for oclvanitygen), or when a match is found and multiple patterns are being searched for. • Free software - MIT. Anyone can audit the code. • Written in C# - The code is short, and easy to review.

Groestlcoin Sentinel (Android & Blackberry) – Mainnet + Testnet

What is Sentinel?

Groestlcoin Sentinel is the easiest and fastest way to track/receive/watch payments in your offline Groestlcoin Wallets. Groestlcoin Sentinel is compatible with any standard Groestlcoin address, BIP44 XPUB (Extended Public Key) BIP49 YPUB and BIP84 ZPUB
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 particular wallet.

What's New?

The P2SH paperwallet supports creating P2SH paperwallets in bulk, keypair generation with QR codes and sweeping tool. Groestlcoin believes strongly in privacy, the live version does not collect and store IP or transaction data.
Changes
Features
The BECH32 paperwallet supports creating BECH32 paperwallets in bulk, keypair generation with QR codes and sweeping tool. Groestlcoin believes strongly in privacy, the live version does not collect and store IP or transaction data.
Features
![WebWallet](https://i.imgur.com/Z2oj7bj.png)

Groestlcoin Web Wallet Update 1.4

What is Groestlcoin Web Wallet?
Groestlcoin Webwallet is an open source, multisignature, HD Wallet and more! Webwallet is a a open source browser based Groestlcoin webwallet.
Webwallet is a playground for Groestlcoin in javascript to experiment with. It supports multisig, OP_HODL, RBF and many more. Groestlcoin believes strongly in privacy, the live version does not collect and store IP or transaction data.
Changes:
submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

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