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1  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: June 22, 2022, 06:58:17 PM


Groestlcoin Electrum Personal Server: Maximally lightweight electrum-grs server for a single user


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 fulfills 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 of Groestlcoin Core's resource-saving features like pruning, blocksonly and disabled txindex. All of Electrum-GRS's feature-richness like hardware wallet integration, multisignature 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 an big part of what makes the system be trustless. 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.

Changelog 0.2.4
Fixed crash caused by deprecated RPC in Groestlcoin Core 23.0
Added signet support

Features:
Use your own node
Tor support
Uses less CPU and RAM than electrumx
Used intermittently rather than needing to be always-on
Doesn't require an index of every groestlcoin address ever used like on electrumx

How To
If you dont already have them, download and install Groestlcoin Core version 2.17.2 or higher. The Groestlcoin node must have wallet enabled, and must have the RPC server switched on (server=1 in groestlcoin.conf). On first run, it is recommended to create a wallet dedicated to Groestlcoin Electrum Personal Server using the command line argument groestlcoin-cli createwallet electrumpersonalserver true.
If you dont already have it, download and install Electrum-grs wallet, and set up your Electrum-grs wallet (for example by linking your hardware wallet). To avoid damaging privacy by connecting to public Electrum-GRS servers, disconnect from the internet first or run Electrum-grs with the command line argument --server localhost:50002:s.
Download the latest release of Groestlcoin Electrum Personal Server. If using Windows OS take the packaged binary release build electrum-grs-personalserver-windows-release-XXX.zip.
Extract and enter the directory, and copy the file config.ini_sample to config.ini. Edit the file config.ini to configure everything about the server. Add your wallet master public keys or watch-only addresses to the [master-public-keys] and [watch-only-addresses] sections. Master public keys for an Electrum-grs wallet (which start with xpub/ypub/zpub/etc) can be found in the Electrum-grs client menu Wallet -> Information. You can add multiple master public keys or watch-only addresses by adding separate lines for the different keys/addresses:
wallet1 = xpub661MyMwAqRbcF...
wallet2 = xpub7712KLsfsg46G...
If you created a wallet dedicated to Groestlcoin Electrum Personal Server in Groestlcoin Core, you have to modify the line wallet_filename in the [groestlcoin-rpc] section with the name of the wallet, for example electrumpersonalserver.
If using the windows packaged binary release, drag the file config.ini onto the file electrum-personal-server.exe to run the server, or on the command line run electrum-personal-server config.ini.
If installing from the source release, install Groestlcoin Electrum Personal Server in your home directory with pip3 install --user .. On Linux the script electrum-personal-server will be installed in ~/.local/bin. Please note, if for some reason, you want to make a system-wide install, simply run pip3 install . as root (e.g. if you have sudo setup, you could use: sudo pip3 install .). Run electrum-personal-server /path/to/config.ini to start Groestlcoin Electrum Personal Server.
The first time the server is run it will import all configured addresses as watch-only into the Groestlcoin node, and then exit. If the wallets contain historical transactions you can use the rescan script (electrum-personal-server --rescan /path/to/config.ini) to make them appear. If using the windows packaged binary release build then drag the file config.ini onto the file electrum-personal-server-rescan.bat.
Run the server again which will start Groestlcoin Electrum Personal Server. Wait until the message Listening for Electrum-grs Wallet ... appears and then tell Electrum-grs to connect to the server in Tools -> Server. By default the server details are localhost if running on the same machine. Make sure the port number matches what is written in config.ini (port 50002 by default).

This application is licensed under the MIT license. 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.

Windows: https://github.com/Groestlcoin/electrum-personal-server/releases/download/eps-v0.2.4-grs/electrum-grs-personal-server-windows-release-v0.2.4.zip
Linux: https://github.com/Groestlcoin/electrum-personal-server#quick-start-on-a-debianubuntu-machine-with-a-running-groestlcoin-full-node
OSX: https://github.com/Groestlcoin/electrum-personal-server#quick-start-on-a-debianubuntu-machine-with-a-running-groestlcoin-full-node

Note: Right now Groestlcoin Electrum Personal Server can only accept one connection at a time.

Source code: https://github.com/Groestlcoin/electrum-personal-server
2  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: June 22, 2022, 06:58:05 PM


GRSPay Testnet: a free and open-source cryptocurrency payment processor which allows you to receive payments in Groestlcoin Testnet with no fees, transaction cost or a middleman.


GRSPay Testnet is a non-custodial invoicing system which eliminates the involvement of a third-party. Payments with GRSPay Testnet go directly to your wallet, which increases the privacy and security. Your private keys are never uploaded to the server. There is no address re-use, since each invoice generates a new address deriving from your tpubkey or vpubkey.

GRSPay Testnet is available at https://testnet.grspay.com/
https://www.youtube.com/watch?v=c7s3zZnlQ6M

https://www.youtube.com/watch?v=qNMTDEPhWhY

Changelog v1.5.4.0
New dashboard
Wallet transactions export
Allow resending verification email for users
Allow Users to be disabled/enabled
Add additional rate providers as supported from CoinGecko

Features
Direct, P2P Groestlcoin Testnet payments
Lightning Network Testnet support
Complete control over private keys
Enchanced privacy
SegWit Testnet support
Process payments for others
Payment buttons
Point of sale
No transaction fees (other than those for the crypto networks)
No processing fees
No middleman
No KYC
The software is built in C#
You can run GRSPay Testnet as a self-hosted solution on your own server or use our host. The self-hosted solution allows you not only to attach an unlimited number of stores but also become the payment processor for others.
Open Source - MIT license

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.

Source code: https://github.com/Groestlcoin/btcpayserver
3  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: June 22, 2022, 06:57:52 PM


GRSPay: a free and open-source cryptocurrency payment processor which allows you to receive payments in Groestlcoin with no fees, transaction cost or a middleman.


GRSPay is a non-custodial invoicing system which eliminates the involvement of a third-party. Payments with GRSPay go directly to your wallet, which increases the privacy and security. Your private keys are never uploaded to the server. There is no address re-use, since each invoice generates a new address deriving from your xpubkey or zpubkey.

GRSPay is available at https://grspay.com
https://www.youtube.com/watch?v=c7s3zZnlQ6M

https://www.youtube.com/watch?v=qNMTDEPhWhY

Changelog v1.5.4.0
New dashboard
Wallet transactions export
Allow resending verification email for users
Allow Users to be disabled/enabled
Add additional rate providers as supported from CoinGecko

Features
Direct, P2P Groestlcoin payments
Lightning Network support
Complete control over private keys
Enchanced privacy
SegWit support
Process payments for others
Easy-embeddable Payment buttons
Point of sale app
No transaction fees (other than those for the crypto networks)
No processing fees
No middleman
No KYC
The software is built in C#
You can run GRSPay as a self-hosted solution on your own server or use our host. The self-hosted solution allows you not only to attach an unlimited number of stores but also become the payment processor for others.
Open Source - MIT license

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.

Source code: https://github.com/Groestlcoin/btcpayserver
4  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: June 22, 2022, 06:57:39 PM


C-lightning: A specification compliant Lightning Network implementation in C


C-lightning is a lightweight, highly customizable and standard compliant implementation of the Lightning Network protocol.
C-lightning only works on Linux and Mac OS, and requires a locally (or remotely) running groestlcoind (version 2.16.0 or above) that is fully caught up with the network you're testing on.

Changelog 0.11.1
Protocol: we now support opening multiple channels with the same peer.
Protocol: we send/receive IP addresses in init, and send updated node_announcement when two peers report the same remote_addr (disable-ip-discovery suppresses this announcement).
Protocol: we more aggressively send our own gossip, to improve propagation chances.
Plugins: cln-grpc first class GRPC interface for remotely controlling nodes over mTLS authentication; set grpc-port to activate.
Database: With the sqlite3:// scheme for --wallet option, you can now specify a second file path for real-time database backup by separating it from the main file path with a : character.
Protocol: pay (and decode, etc) supports bolt11 payment_metadata a-la lightning/bolts#912
JSON-RPC: invoice has a new parameter deschashonly to put hash of description in bolt11.
JSON-RPC: pay has new parameter description, will be required if bolt11 only has a hash.
JSON-RPC: pay has new parameter maxfee for setting absolute fee (instead of using maxfeepercent and/or exemptfee)
JSON-RPC: listforwards has new entry style, currently "legacy" or "tlv".
JSON-RPC: delinvoice has a new parameter desconly to remove description.
JSON-RPC: new setchannel command generalizes setchannelfee: you can now alter the htlc_minimum_msat and htlc_maximum_msat your node advertizes.
Config: htlc-minimum-msat and htlc-maximum-msat to set default values to advertizes for new channels.
JSON-RPC: listpeers now includes a pushed_msat value. For leased channels, is the total lease_fee.
JSON-RPC: getinfo result now includes our_features (bits) for various Bolt #9 contexts
Docker build for ARM defaults to groestlcoin, but can be overridden with the LIGHTNINGD_NETWORK envvar.
Developer: A new Rust library called cln-rpc can be used to interact with the JSON-RPC.
JSON-RPC: A new msggen library allows easy generation of language bindings for the JSON-RPC from the JSON schemas.
JSON-RPC: listchannels now includes the funding_outnum.
JSON-RPC: coin_movement to 'external' accounts now include an 'originating_account' field.
JSON-RPC: Add exclude option for pay command to manually exclude channels or nodes when finding a route.
Database: Speed up loading of pending HTLCs during startup by using a partial index.

Features
Creating channels.
Closing channels.
Completely managing all channel states (including the exceptional ones!).
Performing path finding within the network, passively forwarding incoming payments.
Sending outgoing onion-encrypted payments through the network.
Automatic channel management (autopilot).

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.

Linux: https://github.com/Groestlcoin/lightning/blob/master/doc/INSTALL.md#to-build-on-ubuntu
OSX: https://github.com/Groestlcoin/lightning/blob/master/doc/INSTALL.md#to-build-on-macos
Fedora: https://github.com/Groestlcoin/lightning/blob/master/doc/INSTALL.md#to-build-on-fedora
OpenBSD: https://github.com/Groestlcoin/lightning/blob/master/doc/INSTALL.md#to-build-on-openbsd

Source code: https://github.com/Groestlcoin/lightning
5  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: June 22, 2022, 06:57:24 PM

A new major Groestlcoin Core version 23.0 is now available for download, so it is recommended to upgrade to it if you are running a full Groestlcoin node or a local Groestlcoin Core wallet.


v23.0 is now the official release version of Groestlcoin Core. It is recommended to upgrade to this version as soon as possible.

What's new in version v23.0?
This is a major release of Groestlcoin Core, featuring the technical equivalent of Bitcoin Core v23.0 but with Groestlcoin specific patches.


Changelog 23.0:
https://github.com/Groestlcoin/groestlcoin/blob/23.0.0/doc/release-notes/release-notes-23.0.0.md

Important:
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.
Encrypt your wallet. This can be done by clicking the settings menu from inside the wallet. Make sure your password is secure and do not forget it.
Make a copy your wallet.dat file as a backup and move it to a secure location:
Location Windows: Navigate to C:\Users\Username\AppData\Roaming\groestlcoin\wallet.dat (or open windows explorer and enter %appdata%\Groestlcoin\wallet.dat)
Location Mac: Finder -> Go {Hold Option] -> Library -> groestlcoin -> wallet.dat (~/Library/Application Support/groestlcoin/wallet.dat)

WARNING:
While this branch has been extensively tested to be compatible with the existing Groestlcoin v2.11.0, v2.13.3, v2.16.0, v2.16.3, v2.17.2, v2.18.2, v2.19.1, v2.21.0, v2.21.1 and 22.0.0 network there is the possibility that we missed something. ALWAYS BACKUP YOUR GROESTLCOIN WALLET BEFORE UPGRADING.


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. Users running macOS Catalina need to "right-click" and then choose "Open" to open the Groestlcoin Core .dmg.

Download the Windows Installer (64 bit) here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-win64-setup.exe
Download the Windows binaries (64 bit) here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-win64.zip

Download the OSX Intel based Installer here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-x86_64-apple-darwin.dmg
Download the OSX Intel based binaries here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-x86_64-apple-darwin.tar.gz
Download the OSX ARM Installer here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-arm64-apple-darwin.dmg
Download the OSX ARM binaries here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-arm64-apple-darwin.tar.gz

Download the Linux binaries (64 bit) here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-x86_64-linux-gnu.tar.gz
Download the ARM Linux binaries (64 bit) here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-aarch64-linux-gnu.tar.gz
Download the ARM Linux binaries (32 bit) here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-arm-linux-gnueabihf.tar.gz
Download the RISC-V Linux binaries (64 bit) here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-riscv64-linux-gnu.tar.gz
Download PowerPC linux binaries (64 bit) here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-powerpc64-linux-gnu.tar.gz
Download PowerPC LE linux binaries (64 bit) here: https://github.com/Groestlcoin/groestlcoin/releases/download/v23.0/groestlcoin-23.0-powerpc64le-linux-gnu.tar.gz

Linux Snapcraft: https://snapcraft.io/groestlcoin-core
Linux Flathub: https://flathub.org/apps/details/org.groestlcoin.groestlcoin-qt
Linux Launchpad: https://launchpad.net/~groestlcoin/+archive/ubuntu/groestlcoin
NixOS: https://search.nixos.org/packages?channel=unstable&show=groestlcoin&from=0&size=50&sort=relevance&type=packages&query=groestlcoin
Homebrew Cask: https://formulae.brew.sh/cask/groestlcoin-core
Homebrew: https://formulae.brew.sh/formula/groestlcoin
Arch Linux User Repository: https://aur.archlinux.org/pkgbase/groestlcoin

Source code:
https://github.com/Groestlcoin/groestlcoin
6  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: April 01, 2022, 12:19:07 PM


Groestlcoin Esplora Signet is an open-source Groestlcoin blockchain signet explorer.


Groestlcoin Esplora Signet JSON over RESTful API provides you with a convenient, powerful and simple way to read data from the groestlcoin signet network and build your own services with it.

Features
Explore blocks, transactions and addresses
Support for Segwit and Bech32 addresses
Shows previous output and spending transaction details
Quick-search for txid, address, block hash or height by navigating to /<query>
Advanced view with script hex/assembly, witness data, outpoints and more
Mobile-ready responsive design
Translated to 17 languages
Light and dark themes
Noscript support
Transaction broadcast support
QR scanner
API support

Groestlcoin Esplora Signet 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 Groestlcoin Esplora Signet, no compensation will be given. Use Groestlcoin Esplora Signet solely at your own risk.

Groestlcoin Esplora Signet is available via https://esplora-signet.groestlcoin.org/

Source code: https://github.com/Groestlcoin/esplora
7  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: April 01, 2022, 12:16:59 PM


Groestlcoin Esplora Testnet is an open-source Groestlcoin blockchain testnet explorer.


Groestlcoin Esplora Testnet JSON over RESTful API provides you with a convenient, powerful and simple way to read data from the groestlcoin testnet network and build your own services with it.

Changelog
Taproot support
New UI Design

Features
Explore blocks, transactions and addresses
Support for Segwit and Bech32 addresses
Shows previous output and spending transaction details
Quick-search for txid, address, block hash or height by navigating to /<query>
Advanced view with script hex/assembly, witness data, outpoints and more
Mobile-ready responsive design
Translated to 17 languages
Light and dark themes
Noscript support
Transaction broadcast support
QR scanner
API support

Groestlcoin Esplora Testnet 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 Groestlcoin Esplora Testnet, no compensation will be given. Use Groestlcoin Esplora Testnet solely at your own risk.

Groestlcoin Esplora Testnet is available via https://esplora-test.groestlcoin.org/

Source code: https://github.com/Groestlcoin/esplora
8  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: April 01, 2022, 12:16:25 PM


Groestlcoin Esplora is an open-source Groestlcoin blockchain explorer.


Groestlcoin Esplora JSON over RESTful API provides you with a convenient, powerful and simple way to read data from the groestlcoin network and build your own services with it.

Changelog
Taproot support
New UI Design

Features
Explore blocks, transactions and addresses
Support for Segwit and Bech32 addresses
Shows previous output and spending transaction details
Quick-search for txid, address, block hash or height by navigating to /<query>
Advanced view with script hex/assembly, witness data, outpoints and more
Mobile-ready responsive design
Translated to 17 languages
Light and dark themes
Noscript support
Transaction broadcast support
QR scanner
API support

Groestlcoin Esplora 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 Groestlcoin Esplora, no compensation will be given. Use Groestlcoin Esplora solely at your own risk.

Groestlcoin Esplora is available via https://esplora.groestlcoin.org/

Source code: https://github.com/Groestlcoin/esplora
9  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: April 01, 2022, 12:15:46 PM


GRSPay Testnet: a free and open-source cryptocurrency payment processor which allows you to receive payments in Groestlcoin Testnet with no fees, transaction cost or a middleman.


GRSPay Testnet is a non-custodial invoicing system which eliminates the involvement of a third-party. Payments with GRSPay Testnet go directly to your wallet, which increases the privacy and security. Your private keys are never uploaded to the server. There is no address re-use, since each invoice generates a new address deriving from your tpubkey or vpubkey.

GRSPay Testnet is available at https://testnet.grspay.com/
https://www.youtube.com/watch?v=c7s3zZnlQ6M

https://www.youtube.com/watch?v=qNMTDEPhWhY

Changelog v1.4.7.0
UX/UI: Easier onboarding
UX/UI: New navigation
Greenfield: Add a missingPermission field to 403 errors
Support for new TLS version of SMTP server
Greenfield: Added field "StoreId" to a Payment Request
Greenfield: Can create a payment request without specifying currency (would then use store's default currency)
Add login code, for easy login to GRSPay Server via a mobile device
Add LNUrl Auth support as second factor auth
Batch unarchive invoices
Ability to bump fees of transactions and invoices via CPFP
Add ability to add description to pull payment
Greenfield: Can add store guest/owner to a store
Plugins: Expose file service
Plugins: Allow writing Greenfield API endpoints

Features
Direct, P2P Groestlcoin Testnet payments
Lightning Network Testnet support
Complete control over private keys
Enchanced privacy
SegWit Testnet support
Process payments for others
Payment buttons
Point of sale
No transaction fees (other than those for the crypto networks)
No processing fees
No middleman
No KYC
The software is built in C#
You can run GRSPay Testnet as a self-hosted solution on your own server or use our host. The self-hosted solution allows you not only to attach an unlimited number of stores but also become the payment processor for others.
Open Source - MIT license

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.

Source code: https://github.com/Groestlcoin/btcpayserver
10  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: April 01, 2022, 12:15:13 PM


GRSPay: a free and open-source cryptocurrency payment processor which allows you to receive payments in Groestlcoin with no fees, transaction cost or a middleman.


GRSPay is a non-custodial invoicing system which eliminates the involvement of a third-party. Payments with GRSPay go directly to your wallet, which increases the privacy and security. Your private keys are never uploaded to the server. There is no address re-use, since each invoice generates a new address deriving from your xpubkey or zpubkey.

GRSPay is available at https://grspay.com
https://www.youtube.com/watch?v=c7s3zZnlQ6M

https://www.youtube.com/watch?v=qNMTDEPhWhY

Changelog v1.4.7.0
UX/UI: Easier onboarding
UX/UI: New navigation
Greenfield: Add a missingPermission field to 403 errors
Support for new TLS version of SMTP server
Greenfield: Added field "StoreId" to a Payment Request
Greenfield: Can create a payment request without specifying currency (would then use store's default currency)
Add login code, for easy login to GRSPay Server via a mobile device
Add LNUrl Auth support as second factor auth
Batch unarchive invoices
Ability to bump fees of transactions and invoices via CPFP
Add ability to add description to pull payment
Greenfield: Can add store guest/owner to a store
Plugins: Expose file service
Plugins: Allow writing Greenfield API endpoints

Features
Direct, P2P Groestlcoin payments
Lightning Network support
Complete control over private keys
Enchanced privacy
SegWit support
Process payments for others
Easy-embeddable Payment buttons
Point of sale app
No transaction fees (other than those for the crypto networks)
No processing fees
No middleman
No KYC
The software is built in C#
You can run GRSPay as a self-hosted solution on your own server or use our host. The self-hosted solution allows you not only to attach an unlimited number of stores but also become the payment processor for others.
Open Source - MIT license

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.

Source code: https://github.com/Groestlcoin/btcpayserver
11  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: April 01, 2022, 12:14:10 PM


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.


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 Electrum-GRS is the right choice for you.

Changelog 4.2.0
Kivy GUI:
   - show network setup on first start before wallet creation
   - add "Child Pays For Parent" option
   - improved locale handling

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 that 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

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.

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 is available in the Google play store:
https://play.google.com/store/apps/details?id=org.groestlcoin.electrumgrs

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
12  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: April 01, 2022, 12:13:31 PM


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.


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 Electrum-GRS is the right choice for you.

Changelog 4.2.0
macOS builds are now codesigned and notarized
The minimum python version was increased to 3.8
Lightning:
   - redesigned MPP splitting algorithm
   - trampoline: implement multi-trampoline MPP
   - implement option_shutdown_anysegwit, and allow dust limits below 546 gro
   - implement option_channel_type
   - implement modern closing negotiation
improve support for "lightning:" URIs on all platforms
Qt GUI:
   - add setting "show amounts with msat precision"
   - add setting "add thousand separators to groestlcoin amounts"
CLI/RPC:
   - implement Unix sockets and make them the default
   - add "bumpfee" command
Hardware wallets:
   - trezor: bump trezorlib to 0.13
   - ledger: support "Ledger Nano S Plus"
Library:
   - added support for sighash types beside "ALL"
   - signmessage: also accept Trezor-type sigs for segwit addrs
   - network: make request timeout configurable
   - paytomany (onchain txout batching) now allows multiple max("!") amounts with specified weights
Binary builds
   - AppImage: changed base image from ubuntu 16.04 to 18.04
Integration of Cirrus CI and Github Actions
Lots of other minor bugfixes and usability improvements.

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 that 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

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.

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/v4.2.0/electrum-grs-4.2.0.dmg

Download Windows installer here: https://github.com/Groestlcoin/electrum-grs/releases/download/v4.2.0/electrum-grs-4.2.0-setup.exe
Download Windows standalone wallet here: https://github.com/Groestlcoin/electrum-grs/releases/download/v4.2.0/electrum-grs-4.2.0.exe
Download Windows portable version here: https://github.com/Groestlcoin/electrum-grs/releases/download/v4.2.0/electrum-grs-4.2.0-portable.exe
                                       
Download Linux installer here: https://github.com/Groestlcoin/electrum-grs/releases/download/v4.2.0/electrum-grs-4.2.0-x86_64.AppImage

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
13  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: December 22, 2021, 07:53:49 PM


Blockbook signet is an open-source Groestlcoin signet blockchain explorer with complete REST and websocket APIs that can be used for writing web wallets and other apps that need more advanced blockchain queries than provided by groestlcoind signet RPC.


Blockbook Signet REST API provides you with a convenient, powerful and simple way to read data from the groestlcoin signet network and build your own services with it.

Features
Support to broadcast transactions online. Broadcast a raw transaction in hex format over the Groestlcoin signet network.
Multiple platforms - Supports all browsers.
API - Complete REST and Websocket API for quering blocks, transactions, addresses and receiving live updates.
Light - Thin data model using groestlcoind RPC interfase to validate blockchain information. Fast groestlcoind blockchain syncronization (~1hrs for the entire livenet), using RocksDB for data storage and, optionally, raw groestlcoind data files processing.
Exhaustive - Reports on double spend attempts, outpoints confirmations, outputs spend status reports. Input and Outputs hyperlinks in transactions. Extended view in transactions to show advance details.
Open source - Opensourced, written in go.

Blockbook signet is licensed under GPLv3. There is no warranty and no party shall be made liable to you for damages. If you lose coins due to blockbook signet, no compensation will be given. Use blockbook signet solely at your own risk.

Blockbook signet is available via https://blockbook-signet.groestlcoin.org/

Source code: https://github.com/Groestlcoin/blockbook
14  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: December 22, 2021, 07:53:41 PM


Audio2bip39: Generate a BIP39 mnemonic phrase from an audio recording.


This tool makes it easier for users to generate compatible BIP39 seed words using audio.

Audio2bip39 is available at https://audio2bip39.groestlcoin.org/

Features
open source
supports only 24 word phrases

Source code: https://github.com/Groestlcoin/audio2bip39
15  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: December 22, 2021, 07:53:31 PM


GRS RPC Explorer Signet: Simple, database-free Groestlcoin signet blockchain explorer via RPC to Groestlcoin Core.


GRS RPC Explorer signet is a simple, self-hosted explorer for the Groestlcoin signet blockchain, driven by RPC calls to your own Groestlcoin signet node. It is easy to run and can be connected to other tools (like ElectrumX) to achieve a full-featured explorer.
Whatever reasons one may have for running a full node (trustlessness, technical curiosity, supporting the network, etc) it's helpful to appreciate the "fullness" of your node. With this explorer, you can explore not just the blockchain database, but also explore the functional capabilities of your own node.

Changelog 3.3.0
New tool for viewing the UTXO Set: /utxo-set
New API actions:
  - /api/blockchain/utxo-set
  - /api/address/yourAddress
  - /api/mining/next-block
  - /api/mining/next-block/txids
  - /api/mining/next-block/includes/:txid
  - /api/mining/miner-summary
Major fixes for data displayed in /tx-stats tool
/node-details: Include coinstatsindex status
Support querying UTXO Set even with slowDeviceMode=true, if coinstatsindex is available
Fix for difficulty adjustment estimate
/difficulty-history: Support for viewing different time ranges
When viewing unconfirmed transaction details, show an info dialog if the transaction is predicted to be confirmed in the next block
Performance improvements:
  - Fix for performance degradation over time due to slow "estimatedSupply" function
  - Homepage speedup by making "Estimated Next Block" data load asynchonously
  - Caching for /difficulty-history data
Unicode formatting for OP_RETURN and other similar data (with ascii+hex accessible via toggle)
New .env options for setting defaults (see .env-sample for details):
  - BTCEXP_DISPLAY_CURRENCY (grs,gro,local)
  - BTCEXP_LOCAL_CURRENCY (usd,eur,gbp)
  - BTCEXP_UI_TIMEZONE (utc,local)
  - BTCEXP_UI_HIDE_INFO_PANELS (true,false)
Support for displaying timestamps in local timezone (by using browser default, or setting a manual offset)
Cleanup treatment of locktime on transaction details pages
Unique favicon color based on the active network (mainnet=blue, testnet=black, signet=orange, regtest=gray)
Lots of minor styling improvements
Error handling improvements
Fix for /api/quotes/all
Performance log admin page at /admin/perf-log
Updated dependencies

Features
Network Summary dashboard
View details of blocks, transactions, and addresses
Analysis tools for viewing stats on blocks, transactions, and miner activity
See raw JSON content from groestlcoind used to generate most pages
Search by transaction ID, block hash/height, and address
Optional transaction history for addresses by querying from ElectrumX
Mempool summary, with fee, size, and age breakdowns
RPC command browser and terminal

GRS RPC Explorer signet 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 GRS RPC Explorer signet, no compensation will be given. Use GRS RPC Explorer signet solely at your own risk.

GRS RPC Explorer signet is available via https://rpcexplorer-signet.groestlcoin.org/

Source code: https://github.com/Groestlcoin/grs-rpc-explorer
16  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: December 22, 2021, 07:53:23 PM


GRS RPC Explorer Testnet: Simple, database-free Groestlcoin testnet blockchain explorer via RPC to Groestlcoin Core.


GRS RPC Explorer testnet is a simple, self-hosted explorer for the Groestlcoin testnet blockchain, driven by RPC calls to your own Groestlcoin testnet node. It is easy to run and can be connected to other tools (like ElectrumX) to achieve a full-featured explorer.
Whatever reasons one may have for running a full node (trustlessness, technical curiosity, supporting the network, etc) it's helpful to appreciate the "fullness" of your node. With this explorer, you can explore not just the blockchain database, but also explore the functional capabilities of your own node.

Changelog 3.3.0
New tool for viewing the UTXO Set: /utxo-set
New API actions:
  - /api/blockchain/utxo-set
  - /api/address/yourAddress
  - /api/mining/next-block
  - /api/mining/next-block/txids
  - /api/mining/next-block/includes/:txid
  - /api/mining/miner-summary
Major fixes for data displayed in /tx-stats tool
/node-details: Include coinstatsindex status
Support querying UTXO Set even with slowDeviceMode=true, if coinstatsindex is available
Fix for difficulty adjustment estimate
/difficulty-history: Support for viewing different time ranges
When viewing unconfirmed transaction details, show an info dialog if the transaction is predicted to be confirmed in the next block
Performance improvements:
  - Fix for performance degradation over time due to slow "estimatedSupply" function
  - Homepage speedup by making "Estimated Next Block" data load asynchonously
  - Caching for /difficulty-history data
Unicode formatting for OP_RETURN and other similar data (with ascii+hex accessible via toggle)
New .env options for setting defaults (see .env-sample for details):
  - BTCEXP_DISPLAY_CURRENCY (grs,gro,local)
  - BTCEXP_LOCAL_CURRENCY (usd,eur,gbp)
  - BTCEXP_UI_TIMEZONE (utc,local)
  - BTCEXP_UI_HIDE_INFO_PANELS (true,false)
Support for displaying timestamps in local timezone (by using browser default, or setting a manual offset)
Cleanup treatment of locktime on transaction details pages
Unique favicon color based on the active network (mainnet=blue, testnet=black, signet=orange, regtest=gray)
Lots of minor styling improvements
Error handling improvements
Fix for /api/quotes/all
Performance log admin page at /admin/perf-log
Updated dependencies

Features
Network Summary dashboard
View details of blocks, transactions, and addresses
Analysis tools for viewing stats on blocks, transactions, and miner activity
See raw JSON content from groestlcoind used to generate most pages
Search by transaction ID, block hash/height, and address
Optional transaction history for addresses by querying from ElectrumX
Mempool summary, with fee, size, and age breakdowns
RPC command browser and terminal

GRS RPC Explorer testnet 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 GRS RPC Explorer testnet, no compensation will be given. Use GRS RPC Explorer testnet solely at your own risk.

GRS RPC Explorer testnet is available via https://rpcexplorer-test.groestlcoin.org/

Source code: https://github.com/Groestlcoin/grs-rpc-explorer
17  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: December 22, 2021, 07:53:11 PM


GRS RPC Explorer: Simple, database-free Groestlcoin blockchain explorer via RPC to Groestlcoin Core.


GRS RPC Explorer is a simple, self-hosted explorer for the Groestlcoin blockchain, driven by RPC calls to your own Groestlcoin node. It is easy to run and can be connected to other tools (like ElectrumX) to achieve a full-featured explorer.
Whatever reasons one may have for running a full node (trustlessness, technical curiosity, supporting the network, etc) it's helpful to appreciate the "fullness" of your node. With this explorer, you can explore not just the blockchain database, but also explore the functional capabilities of your own node.

Changelog 3.3.0
New tool for viewing the UTXO Set: /utxo-set
New API actions:
  - /api/blockchain/utxo-set
  - /api/address/yourAddress
  - /api/mining/next-block
  - /api/mining/next-block/txids
  - /api/mining/next-block/includes/:txid
  - /api/mining/miner-summary
Major fixes for data displayed in /tx-stats tool
/node-details: Include coinstatsindex status
Support querying UTXO Set even with slowDeviceMode=true, if coinstatsindex is available
Fix for difficulty adjustment estimate
/difficulty-history: Support for viewing different time ranges
When viewing unconfirmed transaction details, show an info dialog if the transaction is predicted to be confirmed in the next block
Performance improvements:
  - Fix for performance degradation over time due to slow "estimatedSupply" function
  - Homepage speedup by making "Estimated Next Block" data load asynchonously
  - Caching for /difficulty-history data
Unicode formatting for OP_RETURN and other similar data (with ascii+hex accessible via toggle)
New .env options for setting defaults (see .env-sample for details):
  - BTCEXP_DISPLAY_CURRENCY (grs,gro,local)
  - BTCEXP_LOCAL_CURRENCY (usd,eur,gbp)
  - BTCEXP_UI_TIMEZONE (utc,local)
  - BTCEXP_UI_HIDE_INFO_PANELS (true,false)
Support for displaying timestamps in local timezone (by using browser default, or setting a manual offset)
Cleanup treatment of locktime on transaction details pages
Unique favicon color based on the active network (mainnet=blue, testnet=black, signet=orange, regtest=gray)
Lots of minor styling improvements
Error handling improvements
Fix for /api/quotes/all
Performance log admin page at /admin/perf-log
Updated dependencies

Features
Network Summary dashboard
View details of blocks, transactions, and addresses
Analysis tools for viewing stats on blocks, transactions, and miner activity
See raw JSON content from groestlcoind used to generate most pages
Search by transaction ID, block hash/height, and address
Optional transaction history for addresses by querying from ElectrumX
Mempool summary, with fee, size, and age breakdowns
RPC command browser and terminal

GRS RPC Explorer 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 GRS RPC Explorer, no compensation will be given. Use GRS RPC Explorer solely at your own risk.

GRS RPC Explorer is available via https://rpcexplorer.groestlcoin.org/

Source code: https://github.com/Groestlcoin/grs-rpc-explorer
18  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: December 22, 2021, 07:53:02 PM


GRS BlueWallet is a thin client for Groestlcoin.


GRS BlueWallet is built with React Native and Electrum-GRS.

Changelog 6.1.9
ADD: camera on main screen
ADD: Shortcuts on Scan button long press
FIX: Set the first launch flag (issue with disappearing wallets)
ADD: Catalan translation
ADD: Slovak translation
ADD: custom success animation to onchain transactions
ADD: fiat input for receive & send
ADD: Fee details to lighting invoice
ADD: Entropy via dice rolls and coin flip
ADD: Exclude wallet transactions
ADD: Detect language automatically
ADD: Launch screen dark mode
ADD: Dark Mode
ADD: support importing watch-only in groestlcoincore format fingerprint/derivationxpub (wallet descriptors)
ADD: Split for large devices
ADD: Export file option
ADD: Slovenian & Hebrew language
ADD: KES, NGN, TWD Fiat
ADD: Import LNDHub from QR
ADD: Electrum server import from QR
ADD: Privacy Settings Screen
ADD: Clipboard read opt-out
ADD: Support lnurl fallback scheme
ADD: Philippines Peso currency
ADD: Market Widget for iOS 14
ADD: Large iOS widget
ADD: Turkish Lira
ADD: Price Current/Previous Widget
ADD: Allow image for importing wallet
ADD: ARS fiat currency
ADD: Coin Control
ADD: new languages: Bulgarian, Polish, Welsh
ADD: UYU currency
ADD: Multisig Vaults
ADD: Create Multisig Vaults
ADD: Import Multisig Vaults
ADD: Vaults Backup
ADD: Coordination Backup
ADD: Manage/edit Keys
ADD: Share co-signers
ADD: Quorum setup
ADD: Choose address type
ADD: Persian language
ADD: Help section and tips to Vaults
ADD: enable batch-send on multisig wallets
ADD: Easily share a Vault key with QR code
ADD: How many signatures can this Vault make
ADD: Electrum servers history - fast connect
ADD: Ability to set servers via QR code scanning
ADD: CoinControl multi-selection
ADD: iOS 14.5 support
ADD: Electrum-grs json import support
ADD: Offline Signing and Cold Storage
ADD: Encrypted Message sign/verify
ADD: Allow send MAX and BATCH for all wallet types
ADD: TZS currency
ADD: ANG and AWG currencies
ADD: Tor support
ADD: Hierarchy Navigator (List of addresses)
ADD: Slip39 wallets (Shamir's Secret Sharing)
ADD: PSBT for all HD watch-only wallets

Features
Multi-currency- GRS Bluewallet supports more than 20 currencies, including USD, AUD, BRL, CAD, CHF, CZK, CNY, EUR, GDP, HRK, INR, JPY, MXN, MYR, or RUB.
Multi-language - GRS Bluewallet supports more than 20 languages, including Chinese, Japanese, Portuguese, Spanish, Indonesian, Russian, Ukranian, Italian, German, Swedish, Norwegian, French, Danish or Turkish.
Export TXHEX - You can get your transaction HEX (TXHEX) without broadcasting it, and only do it with the relay of your choice.
Be in control - On your Groestlcoin wallet your private keys never leave your device. You are in full control of your private keys. You can at any moment generate backups and export/import your wallets, with full control of what to do with your private keys.
Multiple wallets support - GRS Bluewallet aims to support the maximum wallet standards. Currently supported: BIP44 (HD), BIP49 (HD SegWit), BIP84 (HD bech32, native SegWit), BIP39 Groestlwallet-compatible (m/0'/0/0), Legacy single-address, SegWit single-address (P2SH). You can have many wallets in a single app at the same time.
HD wallets - The Hierarchical Deterministic (HD) key creation and transfer protocol (BIP32), which allows creating child keys from parent keys in a hierarchy. The HD Wallets will generate you different public keys for each transactions.
SegWit - SegWit supported in P2SH-compatibility mode and bech32 Native mode. Segwit was a massive upgrade to the Groestlcoin Protocol released in 2017. You will find all wallets with SegWit enabled by default.
Full encryption - On top of the phone multi-layer encryption, GRS Bluewallet can encrypt everything with an added password. Biometric security (touch ID, Face ID) is not safe, so you will have an additional password to encrypt your wallet instead.
Plausible deniability - A custom made feature thinking about your personal security. GRS Bluewallet allows you to define a different password which will decrypt a fake wallet set up. For any situation you are forced to disclose your access or when you don't want or you can't show your real wallet.
Open Source - GRS Bluewallet is built on a public repo, up-to-date and available on the Groestlcoin GitHub. This means that any user can build it and run it on his own, without any custodial dependencies. Verify the code and contribute to the wallet development. GRS BlueWallet is made with ReactNative and Distributed under a MIT licensed.
Watch-only wallets - Watch-only wallets allows you to keep an eye on your cold storage without touching your private key. Easily import your address or xpub and watch it from your app without ever touching it.
Lightning Wallets - Wallets with support for the Lightning Network Protocol. Unfairly cheap and fast transactions. You can send, receive and refill your wallets.
Bump and Cancel transactions - Ability to bump and cancel sent transactions with "Replace-by-fee" (RBF) and ability to Bump received transactions with "Child-pays-for-parent" (CPFP) on Native Segwit wallets (bech32/BIP84).
Plug-in your Groestlcoin Full node new - Ability to plug-in your own Groestlcoin Full node through Electrum Personal Server (EPS), ElectrumX or Electrs. Don't trust, verify for a maximum sovereignty.

This application is under MIT license. 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.

GRS BlueWallet is available in the Google play store:
https://play.google.com/store/apps/details?id=org.groestlcoin.bluewallet

Source code:
https://github.com/Groestlcoin/bluewallet
19  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: December 22, 2021, 07:52:53 PM


GRS BlueWallet is a thin client for Groestlcoin.


GRS BlueWallet is built with React Native and Electrum-GRS.

Changelog 6.1.9
ADD: camera on main screen
ADD: Shortcuts on Scan button long press
FIX: Set the first launch flag (issue with disappearing wallets)
ADD: Catalan translation
ADD: Slovak translation
ADD: custom success animation to onchain transactions
ADD: fiat input for receive & send
ADD: Fee details to lighting invoice
ADD: Entropy via dice rolls and coin flip
ADD: Exclude wallet transactions
ADD: Detect language automatically
ADD: Launch screen dark mode
ADD: Dark Mode
ADD: support importing watch-only in groestlcoincore format fingerprint/derivationxpub (wallet descriptors)
ADD: Split for large devices
ADD: Export file option
ADD: Slovenian & Hebrew language
ADD: KES, NGN, TWD Fiat
ADD: Import LNDHub from QR
ADD: Electrum server import from QR
ADD: Privacy Settings Screen
ADD: Clipboard read opt-out
ADD: Support lnurl fallback scheme
ADD: Philippines Peso currency
ADD: Market Widget for iOS 14
ADD: Large iOS widget
ADD: Turkish Lira
ADD: Price Current/Previous Widget
ADD: Allow image for importing wallet
ADD: ARS fiat currency
ADD: Coin Control
ADD: new languages: Bulgarian, Polish, Welsh
ADD: UYU currency
ADD: Multisig Vaults
ADD: Create Multisig Vaults
ADD: Import Multisig Vaults
ADD: Vaults Backup
ADD: Coordination Backup
ADD: Manage/edit Keys
ADD: Share co-signers
ADD: Quorum setup
ADD: Choose address type
ADD: Persian language
ADD: Help section and tips to Vaults
ADD: enable batch-send on multisig wallets
ADD: Easily share a Vault key with QR code
ADD: How many signatures can this Vault make
ADD: Electrum servers history - fast connect
ADD: Ability to set servers via QR code scanning
ADD: CoinControl multi-selection
ADD: iOS 14.5 support
ADD: Electrum-grs json import support
ADD: Offline Signing and Cold Storage
ADD: Encrypted Message sign/verify
ADD: Allow send MAX and BATCH for all wallet types
ADD: TZS currency
ADD: ANG and AWG currencies
ADD: Tor support
ADD: Hierarchy Navigator (List of addresses)
ADD: Slip39 wallets (Shamir's Secret Sharing)
ADD: PSBT for all HD watch-only wallets

Features
Multi-currency- GRS Bluewallet supports more than 20 currencies, including USD, AUD, BRL, CAD, CHF, CZK, CNY, EUR, GDP, HRK, INR, JPY, MXN, MYR, or RUB.
Multi-language - GRS Bluewallet supports more than 20 languages, including Chinese, Japanese, Portuguese, Spanish, Indonesian, Russian, Ukranian, Italian, German, Swedish, Norwegian, French, Danish or Turkish.
Export TXHEX - You can get your transaction HEX (TXHEX) without broadcasting it, and only do it with the relay of your choice.
Be in control - On your Groestlcoin wallet your private keys never leave your device. You are in full control of your private keys. You can at any moment generate backups and export/import your wallets, with full control of what to do with your private keys.
Multiple wallets support - GRS Bluewallet aims to support the maximum wallet standards. Currently supported: BIP44 (HD), BIP49 (HD SegWit), BIP84 (HD bech32, native SegWit), BIP39 Groestlwallet-compatible (m/0'/0/0), Legacy single-address, SegWit single-address (P2SH). You can have many wallets in a single app at the same time.
HD wallets - The Hierarchical Deterministic (HD) key creation and transfer protocol (BIP32), which allows creating child keys from parent keys in a hierarchy. The HD Wallets will generate you different public keys for each transactions.
SegWit - SegWit supported in P2SH-compatibility mode and bech32 Native mode. Segwit was a massive upgrade to the Groestlcoin Protocol released in 2017. You will find all wallets with SegWit enabled by default.
Full encryption - On top of the phone multi-layer encryption, GRS Bluewallet can encrypt everything with an added password. Biometric security (touch ID, Face ID) is not safe, so you will have an additional password to encrypt your wallet instead.
Plausible deniability - A custom made feature thinking about your personal security. GRS Bluewallet allows you to define a different password which will decrypt a fake wallet set up. For any situation you are forced to disclose your access or when you don't want or you can't show your real wallet.
Open Source - GRS Bluewallet is built on a public repo, up-to-date and available on the Groestlcoin GitHub. This means that any user can build it and run it on his own, without any custodial dependencies. Verify the code and contribute to the wallet development. GRS BlueWallet is made with ReactNative and Distributed under a MIT licensed.
Watch-only wallets - Watch-only wallets allows you to keep an eye on your cold storage without touching your private key. Easily import your address or xpub and watch it from your app without ever touching it.
Lightning Wallets - Wallets with support for the Lightning Network Protocol. Unfairly cheap and fast transactions. You can send, receive and refill your wallets.
Bump and Cancel transactions - Ability to bump and cancel sent transactions with "Replace-by-fee" (RBF) and ability to Bump received transactions with "Child-pays-for-parent" (CPFP) on Native Segwit wallets (bech32/BIP84).
Plug-in your Groestlcoin Full node new - Ability to plug-in your own Groestlcoin Full node through Electrum Personal Server (EPS), ElectrumX or Electrs. Don't trust, verify for a maximum sovereignty.

This application is under MIT license. 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.

GRS BlueWallet is available in the App store:
https://apps.apple.com/us/app/grs-bluewallet/id1518766083

Source code:
https://github.com/Groestlcoin/bluewallet
20  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot on: December 22, 2021, 07:52:29 PM


Groestlcoin Spark Lightning Wallet Android: A minimalistic wallet GUI for c-lightning through Android


Groestlcoin Spark is currently oriented for technically advanced users and is not an all-in-one package, but rather a "remote control" interface for a c-lightning node that has to be managed separately.
Groestlcoin Sparks supports sending and receiving payments, viewing history, and managing channels.
Groestlcoin Spark is a purely off-chain wallet, with no on-chain payments. This allows Groestlcoin Spark to fully realize the awesome UX enabled by lightning.
Groestlcoin Spark has a responsive UI suitable for mobile, tablet and desktop devices, but is best optimized for use on mobile

Changelog 0.3.1:
BOLT12: Send payments using BOLT12 offers (including support for any amounts, quantities, fiat denomination and sending a payer_note to the payee). Requires c-lightning v0.10.1+ with experimental-offers enabled.
BOLT12: Create reusable BOLT12 offers to receive multiple payments (basic support only). Requires c-lightning v0.10.1+ with experimental-offers enabled.
BOLT12: Pull payments using BOLT12 withdrawal offers (send_invoice=true). Requires c-lightning v0.10.1+ with experimental-offers enabled.
UI: Non-blocking payments with paystatus tracking
Payments are now sent in the background without blocking the UI, with pending/failed payments shown in the homepage payment history.
UI: Improve the main screen initial loading times
Pay/Request can now be used immediately, without waiting for the wallet's data to load first.
UI: Always display payment amounts in USD terms too
UI: Improved error reporting and display
Update clightning-client to v0.1.4
Use newaddr all to avoid creating new addresses when switching types
This raises the minimally supported c-lightning version to v0.7.1.
Reproducibility: Due to changes in third-party dependencies, the Android apk build and the Windows portable runner are no longer reproducible, while the Linux AppImage now is.
Cordova: Target Android SDK version 30

Features:
Pay and Request are pretty intuitive and don't require much explaining. Try them!
Display unit: Click the balance on the top-right or the unit in the "request payment" page to toggle the currency display unit. The available options are gro, groestls, milli, grs and usd.
Theme switcher: Click the theme name on the bottom-right to change themes (you can choose between 16 bootswatch themes).
Payment details: Click on payments in the list to display more details. (note that the fee shown includes c-lightning's overpayment randomization)
Expert mode: Click the version number on the bottom-left to toggle expert mode. This will add two new menu items, "Logs" and "RPC Console", and display yaml dumps with additional information throughout the app.
Node address: Click the node id on the footer to open the node info page which displays your node address (as text and QR).
Channel management: Click the "Channels" button inside the node info page to show and manage channels.

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.

Download link: https://play.google.com/store/apps/details?id=org.groestlcoin.spark

Source code: https://github.com/Groestlcoin/groestlcoin-spark/
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