Topic: [ANN][GRS] Groestlcoin | 1st to activate Segwit | Building Lightning Network - page 35. (Read 558212 times)

If anyone wants to learn about/trial DEXes, feel free to join in:

https://groestlcoin.org/forum/index.php?topic=555.msg2267#msg2267

Hey, Dave.

Two points. First, cryptocurrencies are getting their mojo back, being sought out by folks tired of the ICO sleaze. Secondly, things like 'crypto bonds' (which we may or may not like . . . ) are capable of bringing a lot of capital to this sphere.

What kind of dirt market do you mean
I think the GRS is fine and has a good volume and stable.
Volume will continue to increase as time passes.

Damn market didn't like

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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 future hardware wallets).
Sentinel accepts XPUB's, YPUB'S and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's and YPUB's) deterministically generate addresses for that particular wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changelog v2.7.1:
• Added refresh button
• Groestlsight blockexplorer support
• Haptic PIN entry support
• Track Segwit BIP49 YPUBs
• Sweep P2PKH and Segwit P2SH-P2WPHK amounts into selected account/address
• Use https for blockexplorers

Features
• Open source and unlicensed.
• No Private Keys - Groestlcoin Sentinel only uses Public Keys. It never knows or never asks for your Private Keys.
• Track multiple XPUB's, YPUB's or Addresses - Add multiple XPUB's, YPUB's or addresses to your Groestlcoin Sentinel Watchlist to keep track of balances, transactions, and accept payments into any added wallet or address.
• Deterministically derives Groestlcoin Addresses - Deterministically derive new Groestlcoin addresses associated with your added wallets without needing access or knowledge to your private keys.
• Shareable QR code - Create payment request QR codes with address and amount encoded directly into the image. Share with anyone or any app directly from Groestlcoin Sentinel.
• The most popular Fiat currencies - Groestlcoin Sentinel can convert GRS to your local currency. Supported currencies are: USD, EUR, GBP, CNY and RUB
• Exchanges - Groestloin Sentinel can pull the current Fiat price from Cryptopia and Bittrex.
• Secure PIN Code protection - Add a secure PIN code to protect access to Groestlcoin Sentinel. Optionally turn on PIN Scramble to help thwart against keylogger attacks.

It is appreciated if feedback of the following is provided:
1. Can you receive coins? (small amounts to avoid losing them)
2. Can you scan a QR code from another phone.
3. Does it calculate exchange rates properly in your local currency?
4. Can you view the transactions on the block explorer?
5. Are you able to export and restore the wallet?
6. Can you add multiple XPUB's or addresses in the wallet?
7. Can you add multiple YPUB's or addresses in the wallet?
8. Can you sweep legacy paperwallet?
9. Can you sweep non native segwit paperwallet?

This application is unlicensed. There is no warranty and no party shall be made liable to you for damages. If you lose coins due to this app, no compensation will be given. Use this app solely at your own risk.

The application may have unfound bugs and problems. To leave feedback: 
1.  PM hashengineering on bitcointalk: https://bitcointalksearch.org/user/hashengineering-155038
2.  Email: [email protected]
3.  Reports of errors can also be posted in this topic.

Groestlcoin Sentinel is available in the Blackberry World:
https://appworld.blackberry.com/webstore/content/59999358/

Source code:
https://github.com/Groestlcoin/groestlcoin-sentinel-android - The Groestlcoin Sentinel source code

---

---

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 future hardware wallets).
Sentinel accepts XPUB's, YPUB'S and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's and YPUB's) deterministically generate addresses for that particular wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changelog v2.7.1:
• Added refresh button
• Groestlsight blockexplorer support
• Haptic PIN entry support
• Track Segwit BIP49 YPUBs
• Sweep P2PKH and Segwit P2SH-P2WPHK amounts into selected account/address
• Use https for blockexplorers

Features
• Open source and unlicensed.
• No Private Keys - Groestlcoin Sentinel only uses Public Keys. It never knows or never asks for your Private Keys.
• Track multiple XPUB's, YPUB's or Addresses - Add multiple XPUB's, YPUB's or addresses to your Groestlcoin Sentinel Watchlist to keep track of balances, transactions, and accept payments into any added wallet or address.
• Deterministically derives Groestlcoin Addresses - Deterministically derive new Groestlcoin addresses associated with your added wallets without needing access or knowledge to your private keys.
• Shareable QR code - Create payment request QR codes with address and amount encoded directly into the image. Share with anyone or any app directly from Groestlcoin Sentinel.
• The most popular Fiat currencies - Groestlcoin Sentinel can convert GRS to your local currency. Supported currencies are: USD, EUR, GBP, CNY and RUB
• Exchanges - Groestloin Sentinel can pull the current Fiat price from Cryptopia and Bittrex.
• Secure PIN Code protection - Add a secure PIN code to protect access to Groestlcoin Sentinel. Optionally turn on PIN Scramble to help thwart against keylogger attacks.

It is appreciated if feedback of the following is provided:
1. Can you receive coins? (small amounts to avoid losing them)
2. Can you scan a QR code from another phone.
3. Does it calculate exchange rates properly in your local currency?
4. Can you view the transactions on the block explorer?
5. Are you able to export and restore the wallet?
6. Can you add multiple XPUB's or addresses in the wallet?
7. Can you add multiple YPUB's or addresses in the wallet?
8. Can you sweep legacy paperwallet?
9. Can you sweep non native segwit paperwallet?

This application is unlicensed. There is no warranty and no party shall be made liable to you for damages. If you lose coins due to this app, no compensation will be given. Use this app solely at your own risk.

The application may have unfound bugs and problems. To leave feedback: 
1.  PM hashengineering on bitcointalk: https://bitcointalksearch.org/user/hashengineering-155038
2.  Email: [email protected]
3.  Reports of errors can also be posted in this topic.

Groestlcoin sentinel is available in the Google play store:
https://play.google.com/store/apps/details?id=hashengineering.groestlcoin.samourai.sentinel

Source code:
https://github.com/Groestlcoin/groestlcoin-sentinel-android - The Groestlcoin Sentinel source code

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In order to bring Groestlcoin to the mainstream masses the Electrum-grs Blackberry wallet (v0.5.22) is ready for testing. The app allows you to send and receive Groestlcoins on your device without syncing the blockchain. When using this app, please store your secret phrase and email them to yourself! Then your coins can be retrieved even if you loose your phone. Furthermore, this puts the user in total control of their funds at any given time.

Electrum-grs Blackberry implementations:
BIP-0032 to implement a hierarchical deterministic wallet
BIP-0039 to implement a mnemonic code of mnemonic sentence for the generation of deterministic wallets (process for turning in into a BIP-0032 seed)

Changelog Groestlcoin Electrum GRS v1.5.28:
• Added testnet support and ability to switch between mainnet and testnet
• Added support to receive from non native segwit address
• Added more electrum-grs servers

Changelog Groestlcoin Electrum GRS v1.5.25:
• Improved UI for setting a BIP39 passphrase
• Fixed memory leak when restoring a wallet
• Fixed crashes on some devices
• Possibility to sign and verify messages
• Account details screen to view the public key
• Some UI optimizations
• Bug fixes
• Increase the default size of the recovery phrase
• Can set an amount in receive screen
• Small optimizations when handling the QR code and transactions
• Added ability to spend own unconfirmed change funds
• Support payment URIs requests from browsers and other apps

Features
• Exchange rates for various national currencies
• Manual receiving address management (enable in settings)
• Wallet only needs to be backed up once, on initial creation
• Wallet backup consists of simple list of 12 common words (BIP-0039)
• Empty the wallet with 1 click
• Automatic connectivity management with fast reconnects and detection of network change
• Password protect your recovery phrase
• Top security - Electrum-grs uses bank grade technology. Your money is kept safe by guaranteeing that your private keys will never leave your gadget. The user has absolute control
• Warning if there are no connections to the Electrum-GRS servers
• Click on any addresses to edit the label or copy it
• Support payment URIs requests from browsers and other apps

It is appreciated if feedback of the following is provided:
1.  Can you receive coins? (small amounts to avoid losing them)
2.  Can you send coins?
3.  Can you scan a QR code from another phone.
4.  Can you request coins via email or other Blackberry service?
5.  Does it calculate exchange rates properly?
6.  How fast is a transaction?

Important:
Store your secret phrase somewhere safe!

To close the app, simply press the back button until you reach your home screen.  The app will close itself (there is no need for a disconnect option). This application is licensed under the GPL version 3. There is no warranty and no party shall be made liable to you for damages. If you lose coins due to this app, no compensation will be given. Use this app solely at your own risk.

The application may have unfound bugs and problems. To leave feedback: 
1. PM hashengineering on bitcointalk: https://bitcointalksearch.org/user/hashengineering-155038
2. Email: [email protected]
3. Reports of errors can also be posted in this topic.

Groestlcoin-GRS Blackberry is available in the Blackberry World:
https://appworld.blackberry.com/webstore/content/59983243/

Source code:
https://github.com/Groestlcoin/groestlcoinj - Groestlcoin Java Library (for the Blackberry App and possibly other software)
https://github.com/Groestlcoin/android-electrum-grs - Groestlcoin Blackberry Electrum-grs

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In order to bring Groestlcoin to the mainstream masses the Electrum-grs Android wallet (v0.5.22) is ready for testing. The app allows you to send and receive Groestlcoins on your device without syncing the blockchain. When using this app, please store your secret phrase and email them to yourself! Then your coins can be retrieved even if you loose your phone. Furthermore, this puts the user in total control of their funds at any given time.

Electrum-grs Android implementations:
BIP-0032 to implement a hierarchical deterministic wallet
BIP-0039 to implement a mnemonic code of mnemonic sentence for the generation of deterministic wallets (process for turning in into a BIP-0032 seed)

Changelog Groestlcoin Electrum GRS v1.5.28:
• Added testnet support and ability to switch between mainnet and testnet
• Added support to receive from non native segwit address
• Added more electrum-grs servers

Changelog Groestlcoin Electrum GRS v1.5.25 :
• Improved UI for setting a BIP39 passphrase
• Fixed memory leak when restoring a wallet
• Fixed crashes on some devices
• Possibility to sign and verify messages
• Account details screen to view the public key
• Some UI optimizations
• Bug fixes
• Increase the default size of the recovery phrase
• Can set an amount in receive screen
• Small optimizations when handling the QR code and transactions
• Added ability to spend own unconfirmed change funds
• Support payment URIs requests from browsers and other apps

Features
• Exchange rates for various national currencies
• Manual receiving address management (enable in settings)
• Wallet only needs to be backed up once, on initial creation.
• Wallet backup consists of simple list of 12 common words (BIP-0039).
• Empty the wallet with 1 click
• Automatic connectivity management with fast reconnects and detection of network change
• Password protect your recovery phrase
• Top security - Electrum-grs uses bank grade technology. Your money is kept safe by guaranteeing that your private keys will never leave your gadget. The user has absolute control
• Warning if there are no connections to the Electrum-GRS servers
• Click on any addresses to edit the label or copy it
• Support payment URIs requests from browsers and other apps

It is appreciated if feedback of the following is provided:
1.  Can you receive coins? (small amounts to avoid losing them)
2.  Can you send coins?
3.  Can you scan a QR code from another phone.
4.  Can you request coins via email or other android service?
5.  Does it calculate exchange rates properly?
6.  How fast is a transaction?

Important:
Store your secret phrase somewhere safe!

To close the app, simply press the back button until you reach your home screen.  The app will close itself (there is no need for a disconnect option). This application is licensed under the GPL version 3. There is no warranty and no party shall be made liable to you for damages. If you lose coins due to this app, no compensation will be given. Use this app solely at your own risk.

The application may have unfound bugs and problems. To leave feedback: 
1. PM hashengineering on bitcointalk: https://bitcointalksearch.org/user/hashengineering-155038
2. Email: [email protected]
3. Reports of errors can also be posted in this topic.

Groestlcoin-GRS Android is available in the Google play store:
https://play.google.com/store/apps/details?id=hashengineering.groestlcoin.wallet.electrum

Source code:
https://github.com/Groestlcoin/groestlcoinj - Groestlcoin Java Library (for the Android App and possibly other software)
https://github.com/Groestlcoin/android-electrum-grs - Groestlcoin Android Electrum-grs

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If you are an ordinary user of Groestlcoin and simply want the convenience of a web wallet with the security of a real application and support for multi-signature, then Elecrum-GRS is the right choice for you.

Changelog Electrum-GRS 3.0.6:
 • Moved away from Linux binary file. Users must compile from source now.
 • Moved away from electrum-grs-server codebase to electrumx-grs 1.2
 • The source code is relicensed under the MIT Licence
 • Separation between plugins and GUIs
 • The command line uses jsonrpc to communicate with the daemon
 • New command: 'notify

'
 • Alternative coin selection policy, designed to help preserve user privacy. Enable it by setting the Coin Selection preference to Privacy.
 • The install wizard has been rewritten and improved
 • Support minikeys for private key import and sweeping
 • QT: add colors to labels
 • The wallet file format has been upgraded. This upgrade is not backward compatible, which means that a wallet upgraded to the 2.7 format will not be readable by earlier versions of Electrum-GRS. Multiple accounts inside the same wallet are not supported in the new format; the Qt GUI will propose to split any wallet that has several accounts. Make sure that you have saved your seed phrase before you upgrade Electrum-GRS.
 • This version introduces a separation between wallets types and keystores types. 'Wallet type' defines the type of Groestlcoin contract used in the wallet, while 'keystore type' refers to the method used to store private keys.
 • Replace-By-Fee: RBF transactions are supported in Qt. A warning is displayed in the history for transactions that are replaceable, have unconfirmed parents, or that have very low fees.
 • Qt GUI:
   - A fee slider is visible in the in send tab
   - The Address tab is hidden by default, can be shown with Ctrl-A
   - UTXOs are displayed in the Address tab
 • Seed phrases can be extended with a user-chosen passphrase. The length of seed phrases is standardized to 12 words, using 132 bits of entropy. In the wizard, the type of the seed is displayed in the seed input dialog.
 • Add number of confirmations to request status.
 • In the GUI, refer to passphrase as 'seed extension'.
 • Wizard: Hide seed options in a popup dialog.
 • Separate sign and broadcast buttons in Qt tx dialog
 • Allow spaces in private keys
 • Add size to transaction details window
 • Move plot plugin to main code
 • Merge exchange_rate plugin with main code
 • Faster synchronization and transaction creation
 • Use fee slider for static fees
 • Add fee slider to RBF dialog
 • Simplify fee preferences.
 • Add Testnet support
 • Allow daemon to be launched in the foreground
 • Qt: use separate tabs for addresses and UTXOs
 • Qt: update fee slider with a network callback
 • Enforce https on exchange rate APIs
 • Use hardcoded list of exchanges
 • Move 'Freeze' menu to Coins (utxo) tab
 • Wallet file encryption using ECIES: A keypair is derived from the wallet password. Once the wallet is decrypted, only the public key is retained in memory, in order to save the encrypted file.
 • The daemon requires wallets to be explicitly loaded before commands can use them. Wallets can be loaded using: 'electrum-grs daemon load_wallet [-w path]'. This command will require a password if the wallet is encrypted.
 • Invoices and contacts are stored in the wallet file and are no longer shared between wallets. Previously created invoices and contacts files may be imported from the menu.
 • Fees improvements:
    - Child Pays For Parent (CPFP) dialog in the GUI.
    - RBF is automatically proposed for low fee transactions.
 • The GUI shows a blue icon when connected using a proxy.
 • Show paid invoices in history tab
 • Improve CPFP dialog
 • Multiple Chain Validation: Electrum-GRS will download and validate block headers sent by servers that may follow different branches of a fork in the Groestlcoin blockchain. Instead of a linear sequence,block headers are organized in a tree structure. Branching points are located efficiently using binary search. The purpose of MCV is to detect and handle blockchain forks that are invisible to the classical SPV model.
 • The desired branch of a blockchain fork can be selected using the network dialog. Branches are identified by the hash and height of the diverging block. Coin splitting is possible using RBF transaction
 • MultiGroestl, Groestlwallet, Simple Groestlcoin support: If the user enters a BIP39 seed, the full derivation path is configurable in the install wizard.
 • Option to send only confirmed coins
 • Qt GUI:
    - Network dialog uses tabs and gets updated by network events.
    - The gui tabs use icons
 • Daemon: The wallet password can be passed as parameter to the JSONRPC API.
 • Validate contacts on import
 • Command-line option for locktime
 • Force headers download if headers file is corrupted
 • Add websocket to windows builds
 • The project was migrated to Python3 and Qt5. Python2 is no longer supported. If you cloned the source repository, you will need to run "python3 setup.py install" in order to install the new dependencies.
 • Segwit support:
    - Native segwit scripts are supported using a new type of seed. The version number for segwit seeds is 0x100. The install wizard will not create segwit seeds by default; users must opt-in with the segwit option.
    - Native segwit scripts are represented using bech32 addresses, following BIP173. Please note that BIP173 is still in draft status, and that other wallets/websites may not support it. Thus, you should keep a non-segwit wallet in order to be able to receive groestlcoins during the transition period. If BIP173 ends up being rejected or substantially modified, your wallet may have to be restored from seed. This will not affect funds sent to bech32 addresses, and it will not affect the capacity of Electrum-GRS to spend these funds.
    - The BIP32 master keys of segwit wallets are serialized using new version numbers. The new version numbers encode the script type, and they result in the following prefixes:
         * xpub/xprv : p2pkh or p2sh
         * ypub/yprv : p2wpkh-in-p2sh
         * Ypub/Yprv : p2wsh-in-p2sh
         * zpub/zprv : p2wpkh
         * Zpub/Zprv : p2wsh
These values are identical for mainnet and testnet; tpub/tprv prefixes are no longer used in testnet wallets.
    - The Wallet Import Format (WIF) is similarly extended for segwit scripts. After a base58-encoded key is decoded to binary, its first byte encodes the script type:
         * 128 + 0: p2pkh
         * 128 + 1: p2wpkh
         * 128 + 2: p2wpkh-in-p2sh
         * 128 + 5: p2sh
         * 128 + 6: p2wsh
         * 128 + 7: p2wsh-in-p2sh
The distinction between p2sh and p2pkh in private key means that it is not possible to import a p2sh private key and associate it to a p2pkh address.
 • A new version of the Electrum-GRS protocol is required by the client (version 1.1). Servers using older versions of the protocol will not be displayed in the GUI.
 • By default, transactions are time-locked to the height of the current block. Other values of locktime may be passed using the command line.
 • Sweeping minikeys: search for both compressed and uncompressed pubkeys
 • Qt GUI: sweeping now uses the Send tab, allowing fees to be set
 • Windows: if using the installer binary, there is now a separate shortcut for "Electrum-GRS Testnet"
 • OS notifications for incoming transactions
 • Better transaction size estimation:
    - fees for segwit txns were somewhat underestimated
    - some multisig txns were underestimated
    - handle uncompressed pubkeys
 • The JSONRPC interface is password protected
 • JSONRPC commands are disabled if the GUI is running, except 'ping', which is used to determine if a GUI is already running

Changelog Electrum-GRS 2.5.4:
• Linux binary file included
• Fixed sweeping private keys
• Fixed signing/verifying messages
• Electrum-GRS servers updated to 2.5.4
• Installwizard: do not allow direct copy-paste of the seed
• The QT GUI supports multiple windows in the same process. When a new Electrum-GRS instance is started, it checks for an already running Electrum-GRS process, and connects to it.
• The network layer uses select(), so all server communication is handled by a single thread. Moreover, the synchronizer, verifier, and exchange rate plugin now run as separate jobs within the networking thread instead of as their own threads.
• Plugins are revamped
• Simplified Chinese wordlist
• Dynamic Fees: using estimatefee value returned by server
• Various GUI improvements
• Arbitrary m-of-n multisig wallets are supported (n<=15).
• Transaction fees set manually in the GUI are retained, including when the user uses the '!' shortcut.
• New 'email' plugin, that enables sending and receiving payment requests by email.
• improvements to the transaction dialog:
    - request password after showing transaction
    - show change addresses in yellow color
• Improved logic for the network layer.
• More efficient coin selection. Spend oldest coins first, and minimize the number of transaction inputs.
• The command line accepts the '!' syntax to send the maximum amount available. It can be combined with the '--from' option. Example: 'payto ! --from '
• The command line also accepts a '?' shortcut for private keys arguments, that triggers a prompt.
• Payment requests can be signed with a SSL certificate, and published as bip70 files in a public web directory.
• Show amounts (thousands separators and decimal point) according to locale in GUI
• Show unmatured coins in balance
• Faster startup, thanks to the following optimizations:
   1. Transaction input/outputs are cached in the wallet file
   2. Fast X509 certificate parser, not using pyasn1 anymore.
• The 'Invoices' and 'Send' tabs have been merged.
• Contacts are stored in a separate file, shared between wallets.
• A Search Box is available in the GUI (Ctrl-S)
• Own addresses are shown in green in the Transaction dialog.
• Address History dialog.
• The password dialog will ask for password again if the user enters a wrong password
• The Master Public Key dialog displays which keys belong to the wallet, and which are cosigners
• The transaction dialog will ask to save unsaved transaction received from cosigner pool, when user clicks on 'Close'
• The multisig restore dialog accepts xprv keys.

Features
• Encrypted wallet - the file that contains your groestlcoins is protected with a password. You are protected from thieves.
• Deterministic key generation - If you lose your wallet, you can recover it from its seed. You are protected from your own mistakes.
• Instant on - the client does not download the blockchain, it requests that information from a server. No delays, always up-to-date.
• Freedom and Privacy - The server does not store user accounts. You are not tied to a particular server, and the server does not need to know you.
• No scripts - Electrum-GRS does not download any script. A compromised server cannot send you arbitrary code and steal your groestlcoins.
• No single point of failure - The server code is open source, anyone can run a server.
• Transactions are signed locally - Your private keys are not shared with the server. You do not have to trust the server with your money.
• Firewall friendly - The client does not need to open a port, it simply polls the server for updates.
• Free software - Gnu GPL v3. Anyone can audit the code.
• Written in Python - The code is short, and easy to review.
• User Friendly - Support for Groestlcoin URIs, signed URIs and Groestlcoin aliases
• No Lock-In - You can export your private keys and use them in other groestlcoin clients.
• No Downtimes - Electrum-GRS servers are decentralized and redundant. Your wallet is never down.
• Proof Checking - Electrum-GRS Wallet verifies all the transactions in your history using SPV.
• Cold Storage - Keep your private keys offline, and go online with a watching-only wallet. Sign transactions from a computer taht is always offline. Broadcast them from a machine that does not have your keys.
• Multisign - Split the permission to spend your coins between several wallets using parallel BIP32 derivations and P2SH addresses ("2 of 2", "2 of 3"). Compact serialization format for unsigned or partially signed transactions, that includes the BIP32 master public key and derivation needed to sign inputs. Serialized transactions can be sent to cosigners or to cold storage using QR codes
• Cosigner Pool plugin - encrypted communication channel for multisign wallets, to send and receive partially signed transactions.
• Get noticed - Run a public Electrum-GRS server, publish your message and reach thousands of Groestlcoin users

It is appreciated if feedback of the following is provided:
1. Can you receive coins with legacy addresses? (small amounts to avoid losing them)
2. Can you receive coins with bech32 addresses? (small amounts to avoid losing them)
3. Can you receive coins with legacy testnet addresses? (small amounts to avoid losing them)
4. Can you receive coins with bech32 testnet addresses? (small amounts to avoid losing them)
5. Can you send coins with legacy addresses? (small amounts to avoid losing them)?
6. Can you send coins with bech32 addresses? (small amounts to avoid losing them)?
7. Can you send coins with legacy testnet addresses? (small amounts to avoid losing them)?
8. Can you send coins with bech32 testnet addresses? (small amounts to avoid losing them)?
9. Does the cosigner pool work when using a multi-signature wallet?
10. Does the virtual keyboard work when it asks to enter your wallet password?
11. Does it automatically detect servers under Tools - Network?
12. Are you able to sweep private keys?
13. Are you able to sign/verify messages?
14. Are you able to encrypt/decrypt messages?

This application is licensed under the GPL version 3. There is no warranty and no party shall be made liable to you for damages. If you lose coins due to this app, no compensation will be given. Use this app solely at your own risk.

The application may have unfound bugs and problems. To leave feedback: 
1. PM me
2. Email: [email protected]
3. Post reports of erros in this topic.

Important:
Store your secret phrase somewhere safe!
The multi-signature and non native segwit addresses starts with a "3" and not with a "F".
Electrum-GRS creates an encrypted filename default_wallet instead of wallet.dat (like in Groestlcoin Core)
• Location Windows: Navigate to C:\Users\USER NAME\AppData\Roaming\Electrum-grs\wallets (or open windows explorer and enter %appdata%\Electrum-grs\wallets) and back up your default_wallet file by making a copy of it and moving it to a secure location.
• Location Mac: Navigate to ~/Library/Application Support/Electrum-grs/wallets and back up your default_wallet file by making a copy of it and moving it to a secure location.

You can download it using the links below and be up and running with Groestlcoin in 5 minutes.

Download the OSX wallet here: https://github.com/Groestlcoin/electrum-grs/releases/download/v3.0.6/electrum-grs-v3.0.6.dmg
Note: The QR code scanner is not supported in OSX binary

Download Windows installer here: https://github.com/Groestlcoin/electrum-grs/releases/download/v3.0.6/electrum-grs-v3.0.6-setup.exe
Download Windows standalone wallet here: https://github.com/Groestlcoin/electrum-grs/releases/download/v3.0.6/electrum-grs-v3.0.6.exe
Download Windows portable version here: https://github.com/Groestlcoin/electrum-grs/releases/download/v3.0.6/electrum-grs-v3.0.6-portable.exe

Linux wallet instructions:
sudo apt-get install python3-setuptools python3-pyqt5 python3-pip python3-dev libssl-dev
sudo pip3 install groestlcoin_hash
sudo pip3 install https://github.com/Groestlcoin/electrum-grs/releases/download/v3.0.6/electrum-grs-3.0.6.tar.gz
electrum-grs

Source code:
GitHub Source server: https://github.com/Groestlcoin/electrumx-grs
Github Source server installer: https://github.com/Groestlcoin/electrumx-grs-installer
Github Source client: https://github.com/Groestlcoin/electrum-grs
Github Source Icons: https://github.com/Groestlcoin/electrum-grs-icons
Github Source locale: https://github.com/Groestlcoin/electrum-grs-locale

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Enter your BIP39 phrase into the 'BIP39 Phrase' field, or press 'Generate Random Phrase'. Use the correct derivation path and word count.
See the table for a list of addresses generated from the phrase. Toggle columns to blank to easily copy/paste a single column of data, eg to import private keys into a wallet or supply someone with a list of addresses.

Features
• Support for Groestlwallet (Use path m/0'/0)
• Support for MultiGroestl HD (Use path m/0'/0)
• Support for Simple Groestlcoin (Use path m/0'/0)
• Support for Groestlcoin Electrum GRS (Use path m/44'/17'/0'/0)
• Support for Coinomi (Use path m/44'/17'/0'/0)
• Support for Groestlpay (use path m/44'/0'/0'/0)
• Support for GRS Mainnet and GRS Testnet
• You can enter an existing BIP39 recovery phrase, or generate a new random one (typing your own twelve words will probably not work how you expect, since the words require a particular structure as the last word is a checksum)
• Number of words support for: 3, 6, 9, 12, 15, 18, 21 and 24
• BIP32 support
• BIP44 support

Live version available at https://groestlcoin.org/bip39-standalone.html  But it is recommended to download the BIP39 tool offline and run it on your pc. Open bip39-standalone.html to get started.

It is appreciated if feedback of the following is provided:
1. Are you able to extract private keys of Groestlwallet?
2. Are you able to extract private keys of MultiGroestl HD?
3. Are you able to extract private keys of Simple Groestlcoin?
4. Are you able to extract private keys of Groestlcoin Electrum GRS?
5. Are you able to extract private keys of Coinomi?
6. Are you able to extract private keys of Groestlpay?

This application is licensed under MIT. There is no warranty and no party shall be made liable to you for damages. If you lose coins due to this app, no compensation will be given. Use this app solely at your own risk.

The application may have unfound bugs and problems. To leave feedback: 
1. PM me
2. Email: [email protected]
3. Post reports of errors in this topic.

Download the Groestlcoin BIP39 tool here: https://github.com/Groestlcoin/bip39/archive/grs.zip

Source code: https://github.com/groestlcoin/bip39

Maybe our thoughts were quantum-ly entangled through the akashic field.

Wtf I made the same joke 1 minute ago on the telegram

One hour to go until the announcement that Amazon is accepting Groestlcoin as its first ever CRYPTO!!!


(ok if you can't tell that was what it was above you are naive and deserve to lose money)





Wouldn't it be great if something like that happened though LOL I'd be able to instantly retire.  It would be like hitting the Powerball LOL free amazon for LIFE!



HAHAHAHAHAHAHAH!

Thank you! Love the video!

Hello, Groestlcoin community! I wish everyone with Groestlcoin's Birthday
Groestlcoin gave me many happy moments this year.
I prepared short video as a gift. Take a look!
https://youtu.be/sYibHhMKEBA
Thank you all!
 

Does anyone know what's that major dev release that they are announcing to happend in 12 hours?

Also I have found that today should be new exchange added (as it is announced but I can't find the source link)

Here is countdown timer for DEV release:

https://www.groestlcoin.org/

I don't see any mention of the GRS in the article ? I don't think anyone knows this project anyway

'Cryptocurrencies (not tokens) will heavily disrupt treasury bonds because very, very soon every credit union in america is going to be offering an index cryptocurrency bond.'     

https://www.reddit.com/r/CryptoCurrency/comments/8563d9/dan_arbess_gets_cut_off_by_cnbc_anchor_as_he_is/

Whoo! That's us!

Just jumped into this thread while reading a post bitcoinpub. Am I glad I found a hidden gem in GRS. Crypto market is down and maybe this is a great opportunity... oh let me do the research first 

Ainda não entendo muito vim a este forum pelo http://www.[Suspicious link removed]/