Groestlcoin 22nd September Release

Groestlcoin Release September 2021

Whilst the crypto-coaster ride of earlier this year has dwindled slightly over the past few months, with more subtle ebbs and flows in the market, the price of GRS has remained mostly immune to these changing conditions, as has the development pace.

What’s Being Released Today?

 

GROESTLCOIN DEVELOPMENT RELEASE

Groestlcoin Core 22.0

What am I?

Groestlcoin Core is a major release with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v22.0 but with Groestlcoin specific patches.

Changelog

Important

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)

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.

SourceOSXWindowsLinux

Electrum-GRS v4.1.5

What am I?

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 Electrum-GRS 4.1.5

  • Builds/binaries:
    - Android: the binaries (APKs) should now be reproducible
    - AppImage: fix some startup issues by including libxcb deps
    - macOS: the .dmg binary should now be reproducible
  • Lightning:
    - smarter LN pathfinding (if trampoline is disabled):
    - estimate liquidity in channels using previous attempts
    - consider inflight HTLCs and try to route around them
    - bugfix: add more safety checks to avoid "batch RBF" feature merging LN funding txs
    - remove HTLC value upper limit of ~42 mGRS
    - improve payment success when using trampoline
  • imported wallets: when enabling the "Use change addresses" option, change will now be sent to a random unused imported address. As before, by default, change is sent back to the "from address".
  • seed generation: make sure newly created electrum-grs seeds don't have correct bip39 checksum by chance
  • other minor fixes
  • CLI/RPC: fix "close_wallet" command
  • fix: payment requests not saved if process is killed
  • add support for signet test network
  • Qt GUI:
    - allow restoring from SLIP39 seeds
    - rework QR code scanning on Windows and macOS
    - support smaller window sizes, decrease minimums
  • GUIs: add "funded or unused" filter option to Addresses tab

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.

OSXWindowsWindows StandaloneWindows PortableLinux

Server SourceServer Installer SourceClient Source

Android Electrum-GRS v4.1.5

What am I?

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 Android Electrum-GRS 4.1.5

  • Kivy/Android: fix a regression where a non-LN wallet could not open the settings
  • Kivy/Android: fix paying bip70 invoices (regression)
  • Kivy GUI: implement freezing LN channels

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.

Google Play

Server SourceServer Installer SourceClient Source

GRSPay v1.2.3.0

What am I?

GRSPay is a free, open-source, non-custodial cryptocurrency payment processor which allows you to receive payments in Groestlcoin with no fees, transaction cost or middlemen. GRSPay 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 visible to the GRSPay Server or anyone else. There is no address re-use since each invoice generates a new address deriving from your public key.

https://www.youtube.com/watch?v=c7s3zZnlQ6M

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

Changelog v1.2.3.0

  • Add payjoin to hot wallet setup and turn on by default
  • Support spending to Taproot
  • Show Immature Balance in walletsend page
  • Auto-detect language on payment page
  • Pull payments: Detect External OnChain Payouts
  • Allow marking payout as paid manually
  • Use CSP to prevent future XSS attacks.
  • Fix XSS vulnerabilities in summernote, the rich text editor

Features

  • Direct, P2P Groestlcoin payments
  • Lightning Network support
  • Complete control over private keys
  • Enchanced privacy
  • SegWit 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 as a self-hosted solution on your own server or use a 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

SourceLive Site

GRSPay Testnet v1.2.3.0

What am I?

GRSPay Testnet is a free, open-source, non-custodial cryptocurrency payment processor which allows you to receive payments in Groestlcoin testnet with no fees, transaction cost or middlemen. GRSPay Testnet 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 visible to the GRSPay Testnet Server or anyone else. There is no address re-use since each invoice generates a new address deriving from your public key.

https://www.youtube.com/watch?v=c7s3zZnlQ6M

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

Changelog v1.2.3.0

  • Add payjoin to hot wallet setup and turn on by default
  • Support spending to Taproot
  • Show Immature Balance in walletsend page
  • Auto-detect language on payment page
  • Pull payments: Detect External OnChain Payouts
  • Allow marking payout as paid manually
  • Use CSP to prevent future XSS attacks.
  • Fix XSS vulnerabilities in summernote, the rich text editor

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 a 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

SourceLive Site

C-lightning 0.10.1

What am I?

C-Lightning is a specification-compliant Lightning Network implementation built in C. It is a lightweight, highly customisable and standard compliant implementation of the Lightning Network protocol. C-Lightning only works on Linux and Mac OS and requires a local or remote instance of Groestlcoind (version 2.16 or above) that is fully synced to the correct blockchain.

Changelog 0.10.1

  • experimental-dual-fund allows advertizement of funding rates which we will contribute to channels automatically, on a 1-month lease.
  • withdraw and close (if peer supports) now supports Taproot (and other future) addresses.
  • listchannels can now be queried by destination, as well as source.
  • plugin rescan now automatically reloads plugins which have changed.
  • We try to restart automatically if we notice subdaemons have been upgraded underneath us.
  • fundpsbt will no longer include uneconomic UTXOs (unless all).
  • close will return a stream of notifications if there is a delay in closing.
  • Unilateral close feerates were reduced from groestlcoind's "2 CONSERVATIVE" to "6 ECONOMICAL".
  • Tor v2 is deprecated: please upgrade to v3!
  • Fixed disconnection bug when an HTLC failed.
  • Fixed bug in rapid feerate changes, and make code space them out (LND compat).
  • Fixed bug where Tor on different ports could be advertized incorrectly.
  • Fixed various bugs to make pay more robust.
  • payment secrets in invoices are now compulsory, finally closing a potential probing (or, with amountless invoices, stealing) attack.
  • option_shutdown_anysegwit allows peers to close channels to any future segwit version address (taproot!).
  • keysend now understands routehints, for routing to unpublished nodes, and sets the final CLTV to 22, for rust-lightning nodes.
  • invoice now allows creation of wumbo invoices (> 0.0429 GRS).
  • We will now discuss old channels with peers who reconnect, even if we consider them closed.
  • Manual pages now document exactly the JSON you can expect from each command (and it's tested!)
  • Plugins can now publish notifications for other plugins to listen to.
  • force-feerates allows complete feerate override (mainly for regtest), and a bug fixed where we could send 0 update_fee on regtest.
  • The HSM daemon is now separated into libhsmd, which also provides Python bindings.
  • createonion can now make variable-sized onions, and sendonion no longer requires direction and channel for firsthop.
  • dev-sendcustommsg is now simply sendcustommsg.
  • Many offers API improvements and updates, including unsigned offers (smaller QR codes!).

Features

  • Ability to create new channels
  • Ability to close existing channels
  • Completely manage all channel states, including exceptional ones
  • Performing path-finding within the network, passively forwarding incoming payments
  • Sending outgoing onion-encrypted payments through the network
  • Automatic channel management (auto-pilot)

SourceBuilding instructions LinuxBuilding instructions for OSX

GRS RPC Explorer 3.2.0

What am I?

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 3.2.0

  • Public API! See the docs at /api/docs
  • XPUB pages: search for any xpub (ypub, zpub, etc) and see summary details and a list of associated addresses
  • Homepage: add "Predicted Next Block" section
  • Mempool Summary: add top-fee transactions table
  • Improvements to transaction details UI, especially on smaller screens
  • Cleanup support for Taproot/bech32m
  • New /mining-template tool, showing structured output of getblocktemplate command
  • Various improvements to charts and graphs throughout the tool (including lots of y-axis changes: linear->log)
  • Better support for BIP9 soft forks shown on /node-details (e.g. Taproot ST in 2.21.1)
  • New "Recent" and "Favorites" sections on /rpc-browser
  • Block lists: show (min, avg, max) fee rates instead of just avg
  • Random Groestlcoin-related quote shown in footer on each page load
  • New /quotes, curated list of Groestlcoin-related quotes (each quote also having its own page like this)
  • Preemptive support for upcoming format change to getrawtransaction output
  • Fix for incorrect homepage block count when using BTCEXP_UI_HOME_PAGE_LATEST_BLOCKS_COUNT
  • Fix for inaccurate difficulty adjustment estimates
  • Link to Tor v3 Hidden Service in footer
  • Fix for DEBUG environment variable being ignored
  • Fix for /rpc-terminal not parsing non-int parameters properly
  • Fix for edge case where txindex availability check fails at startup (add retries with exp. backoff)
  • Fix for tiny-value display (i.e. 1e-8 -> 0.00000001)
  • Misc UI/UX tweaks
  • Cache busting for frontend resources
  • Improved error handling in many places
  • Updated dependencies
  • Fix for regtest network errors on homepage
  • Fix for server errors in Docker-based installs
  • Improvements to no-txindex support: now available for all versions of Groestlcoin Core
  • Add back the /peers tool in the "Tools" menu. Note: The map on the peers tool now requires users set their own BTCEXP_MAPBOX_APIKEY in .env
  • Response compression
  • Remove reference to unused fonts.css
  • Increased static-files cache: 1hr -> 1mo
  • Clearer UX around RPC connection failures (show the fact clearly, instead of flooding the log with cryptic errors)
  • Fixed changelog for v3.0.0 release (added/clarified some issues)
  • Updated favicons
  • Fix for homepage error after failure to get AU exchange rate
  • UX improvements on /peers page
  • Graphs for top items in /admin/stats
  • Optional support for plausible.io analytics
  • Fix to avoid displaying empty "Summary" section when we fail to get address txid list
  • UX improvement around electrs too-many-txs-for-address errors
  • Major visual refresh:
    - All new design (layout, fonts, colors, etc)
    - Redesigned Dark Mode (now the default)
    - New app icon
  • Support for pruned nodes and nodes with disabled txindex! Note: Currently only Groestlcoin Core versions 2.21+ are able to support this feature (a future improvement is planned to make it available to all versions)
  • Mempool Summary improvements:
    - Greatly improved performance for multiple loads via caching
    - Added: "Blocks Count" column by fee-rate bucket
    - Tool for estimating Block Depth of a transaction or a fee rate
  • Mining Summary: added doughnut chart for rev. breakdown, simplified table data
  • Upgraded to Bootstrap 5 (currently beta3...)
  • Update mapbox API. Note: The map on the /peers page now requires that users set the env var BTCEXP_MAPBOX_APIKEY to their own API key
  • Fix for 404 pages hanging
  • Add convenience redirect for baseUrl
  • Make url in logs clickable
  • Caching for static files (maxAge=1hr)
  • Frontend performance optimizations
  • Smarter performance/memory defaults for slow devices
  • Major refactoring, modernization, and code-reuse improvements
  • UX improvements and polish throughout
  • URL changes:
    - /node-status -> /node-details
    - /unconfirmed-tx -> /mempool-transactions
  • Environment variable changes:
    - The below changes were made to more clearly acknowledge that multiple Electrum-protocol implementations (e.g. ElectrumX, Electrs) can be used for address queries:
    - BTCEXP_ADDRESS_API value electrumx -> electrum (electrumx should still works)
    - BTCEXP_ELECTRUMX_SERVERS -> BTCEXP_ELECTRUM_SERVERS (BTCEXP_ELECTRUMX_SERVERS should still work)
  • Updated dependencies:
    - jQuery: v3.4.1 -> v3.6.0
    - highlight.js: v9.14.2 -> v10.7.1
    - fontawesome: v5.7.1 -> v5.15.3
  • New fee rate data on /block-analysis pages
  • New minor misc peer data available in Groestlcoin Core RPC v2.21+
  • New gold exchange rate on homepage
  • Fix for SSO token generation URL encoding
  • Fix for /peers map
  • Fix for README git clone
  • Support for running on a configurable BASEURL, e.g. "/explorer/"
  • Support for SSO
  • Support for signet and taproot
  • Support for listening on 0.0.0.0
  • Support for viewing list of block heights for each miner on /mining-summary
  • Sanitizing of environment variables
  • Fix for XSS vulnerabilities
  • Fix for low severity lodash dependency vulnerability
  • Fix for zero block reward (eventually on mainnet, now on regtest)
  • Fix for cryptic error when running regtest with no blocks
  • Fix for pagination errors on /blocks (not displaying genesis block on the last page; error on last page when sort=asc)
  • Electrum-grs connect/disconnect stats on /admin
  • Add P2SH bounty address /fun items
  • Misc cleanup

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

SourceLive Site

GRS RPC Explorer Testnet 3.2.0

What am I?

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 3.2.0

  • Public API! See the docs at /api/docs
  • XPUB pages: search for any xpub (ypub, zpub, etc) and see summary details and a list of associated addresses
  • Homepage: add "Predicted Next Block" section
  • Mempool Summary: add top-fee transactions table
  • Improvements to transaction details UI, especially on smaller screens
  • Cleanup support for Taproot/bech32m
  • New /mining-template tool, showing structured output of getblocktemplate command
  • Various improvements to charts and graphs throughout the tool (including lots of y-axis changes: linear->log)
  • Better support for BIP9 soft forks shown on /node-details (e.g. Taproot ST in 2.21.1)
  • New "Recent" and "Favorites" sections on /rpc-browser
  • Block lists: show (min, avg, max) fee rates instead of just avg
  • Random Groestlcoin-related quote shown in footer on each page load
  • New /quotes, curated list of Groestlcoin-related quotes (each quote also having its own page like this)
  • Preemptive support for upcoming format change to getrawtransaction output
  • Fix for incorrect homepage block count when using BTCEXP_UI_HOME_PAGE_LATEST_BLOCKS_COUNT
  • Fix for inaccurate difficulty adjustment estimates
  • Link to Tor v3 Hidden Service in footer
  • Fix for DEBUG environment variable being ignored
  • Fix for /rpc-terminal not parsing non-int parameters properly
  • Fix for edge case where txindex availability check fails at startup (add retries with exp. backoff)
  • Fix for tiny-value display (i.e. 1e-8 -> 0.00000001)
  • Misc UI/UX tweaks
  • Cache busting for frontend resources
  • Improved error handling in many places
  • Updated dependencies
  • Fix for regtest network errors on homepage
  • Fix for server errors in Docker-based installs
  • Improvements to no-txindex support: now available for all versions of Groestlcoin Core
  • Add back the /peers tool in the "Tools" menu. Note: The map on the peers tool now requires users set their own BTCEXP_MAPBOX_APIKEY in .env
  • Response compression
  • Remove reference to unused fonts.css
  • Increased static-files cache: 1hr -> 1mo
  • Clearer UX around RPC connection failures (show the fact clearly, instead of flooding the log with cryptic errors)
  • Fixed changelog for v3.0.0 release (added/clarified some issues)
  • Updated favicons
  • Fix for homepage error after failure to get AU exchange rate
  • UX improvements on /peers page
  • Graphs for top items in /admin/stats
  • Optional support for plausible.io analytics
  • Fix to avoid displaying empty "Summary" section when we fail to get address txid list
  • UX improvement around electrs too-many-txs-for-address errors
  • Major visual refresh:
    - All new design (layout, fonts, colors, etc)
    - Redesigned Dark Mode (now the default)
    - New app icon
  • Support for pruned nodes and nodes with disabled txindex! Note: Currently only Groestlcoin Core versions 2.21+ are able to support this feature (a future improvement is planned to make it available to all versions)
  • Mempool Summary improvements:
    - Greatly improved performance for multiple loads via caching
    - Added: "Blocks Count" column by fee-rate bucket
    - Tool for estimating Block Depth of a transaction or a fee rate
  • Mining Summary: added doughnut chart for rev. breakdown, simplified table data
  • Upgraded to Bootstrap 5 (currently beta3...)
  • Update mapbox API. Note: The map on the /peers page now requires that users set the env var BTCEXP_MAPBOX_APIKEY to their own API key
  • Fix for 404 pages hanging
  • Add convenience redirect for baseUrl
  • Make url in logs clickable
  • Caching for static files (maxAge=1hr)
  • Frontend performance optimizations
  • Smarter performance/memory defaults for slow devices
  • Major refactoring, modernization, and code-reuse improvements
  • UX improvements and polish throughout
  • URL changes:
    - /node-status -> /node-details
    - /unconfirmed-tx -> /mempool-transactions
  • Environment variable changes:
    - The below changes were made to more clearly acknowledge that multiple Electrum-protocol implementations (e.g. ElectrumX, Electrs) can be used for address queries:
    - BTCEXP_ADDRESS_API value electrumx -> electrum (electrumx should still works)
    - BTCEXP_ELECTRUMX_SERVERS -> BTCEXP_ELECTRUM_SERVERS (BTCEXP_ELECTRUMX_SERVERS should still work)
  • Updated dependencies:
    - jQuery: v3.4.1 -> v3.6.0
    - highlight.js: v9.14.2 -> v10.7.1
    - fontawesome: v5.7.1 -> v5.15.3
  • New fee rate data on /block-analysis pages
  • New minor misc peer data available in Groestlcoin Core RPC v2.21+
  • New gold exchange rate on homepage
  • Fix for SSO token generation URL encoding
  • Fix for /peers map
  • Fix for README git clone
  • Support for running on a configurable BASEURL, e.g. "/explorer/"
  • Support for SSO
  • Support for signet and taproot
  • Support for listening on 0.0.0.0
  • Support for viewing list of block heights for each miner on /mining-summary
  • Sanitizing of environment variables
  • Fix for XSS vulnerabilities
  • Fix for low severity lodash dependency vulnerability
  • Fix for zero block reward (eventually on mainnet, now on regtest)
  • Fix for cryptic error when running regtest with no blocks
  • Fix for pagination errors on /blocks (not displaying genesis block on the last page; error on last page when sort=asc)
  • Electrum-grs connect/disconnect stats on /admin
  • Add P2SH bounty address /fun items
  • Misc cleanup

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

SourceLive Site

Groestlcoin VerifySignature

What am I?

This tool makes it easier for users to verify signatures online/offline.

Features

  • open source
  • compiles into static html files so it can run completely offline

SourceLive Version

Android Wallet 8.14

What am I?

Android wallet is a Hierarchical Deterministic Groestlcoin Wallet.

Changelog Groestlcoin Wallet 8.14

• Fix issue with not being able to send due to blockchain replay.
• Fix layout on 10in tablets.
• Customize the connectivity notification in trusted peer mode.
• Fix a build reproducibility issue.
• Update translations from Transifex.
• Improve offline payments via Bluetooth for Android 8.1 (Oreo) and up. Merchants should configure their own Bluetooth address in the settings.
• Restructure the settings page.
• Use CoinGecko.com for exchange rates.
• The color of the transaction confirmation indicator has been changed. It now starts red with one confirmation, slowly blending to green for 7 confirmations.
• On Android 9 and older, switched the app-widget back to dark. On Android 10, use the dark/light system setting.
• Get rid of the last internal content provider; replace it with a repository and an SQLite database.
• Minor bugfixes.
• Remove the ability to directly add an address to the address book from the clipboard due to safety concerns. The QR code scanner can still be used, and addresses you've already sent to can be added as well.
• Visual overhaul of the address book.
• Visual overhaul of the network monitor.
• Visual overhaul of the exchange rates list.
• Visual overhaul of the transactions list.
• Allow multiple trusted peers by separating them with a space character.
• The app now requires Android 6.0 (Marshmallow) or higher.
• On modern devices: Introduce a blockchain synchronization mode that prioritizes privacy vs data usage.
• Trusted peers with custom TCP ports are now supported. Use the IPv4:port or [IPv6]:port syntax.
• Based on groestlcoinj 0.15.10.

Features

• Sweep paper wallets
• Transparant - free and open source
• Blockexplorer support
• Network monitor
• Backup/restore option
• Spending pin
• xpub support
• Ability to reset blockchain
• Ability to change denomination
• Ability to connect to trusted peer
• Connectivity indicator

SourceGoogle Play – Fdroid

Android Testnet Wallet 8.14

What am I?

Android testnet wallet is a Hierarchical Deterministic Groestlcoin Wallet.

Changelog Groestlcoin Wallet 8.14

• Fix issue with not being able to send due to blockchain replay.
• Fix layout on 10in tablets.
• Customize the connectivity notification in trusted peer mode.
• Fix a build reproducibility issue.
• Update translations from Transifex.
• Improve offline payments via Bluetooth for Android 8.1 (Oreo) and up. Merchants should configure their own Bluetooth address in the settings.
• Restructure the settings page.
• Use CoinGecko.com for exchange rates.
• The color of the transaction confirmation indicator has been changed. It now starts red with one confirmation, slowly blending to green for 7 confirmations.
• On Android 9 and older, switched the app-widget back to dark. On Android 10, use the dark/light system setting.
• Get rid of the last internal content provider; replace it with a repository and an SQLite database.
• Minor bugfixes.
• Remove the ability to directly add an address to the address book from the clipboard due to safety concerns. The QR code scanner can still be used, and addresses you've already sent to can be added as well.
• Visual overhaul of the address book.
• Visual overhaul of the network monitor.
• Visual overhaul of the exchange rates list.
• Visual overhaul of the transactions list.
• Allow multiple trusted peers by separating them with a space character.
• The app now requires Android 6.0 (Marshmallow) or higher.
• On modern devices: Introduce a blockchain synchronization mode that prioritizes privacy vs data usage.
• Trusted peers with custom TCP ports are now supported. Use the IPv4:port or [IPv6]:port syntax.
• Based on groestlcoinj 0.15.10.

Features

• Sweep paper wallets
• Transparant - free and open source
• Blockexplorer support
• Network monitor
• Backup/restore option
• Spending pin
• xpub support
• Ability to reset blockchain
• Ability to change denomination
• Ability to connect to trusted peer
• Connectivity indicator

SourceGoogle Play – Fdroid