Topic: [ANN][GRS] Groestlcoin | 1st to activate Segwit | Building Lightning Network - page 94. (Read 558212 times)

A multipool with payment option for Groestlcoin is good idea, let me know when it is setup.

What about Multipool for groestlCoin , is it good idea ? i think to setup one. here http://hashgoal.com

Amazing! GRS have the best devs in crypto world! Do you celebrate new year or you make improvements to groestlcoin?

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

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

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

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

Important:
Store your secret phrase somewhere safe!

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

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

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

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

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After a measure of hard work adapting the latest Wallet32 (v0.3.17) for Blackberry to Groestlcoin, the Groestlcoin wallet32 beta (v0.1.3) is ready for testing. The app allows you to send and receive Groestlcoins on your device using QR codes and URI links. When using this app, please store your secret phrase and email them to yourself! Then your coins can be retrieved even if you loose your phone.

Groestlcoin wallet32 implementations:
BIP-0032 to implement a hierarchical deterministic wallet
BIP-0039 to implement a mnemonic code of mnemonic sentence for the generation of deterministic wallets (process for turning in into a BIP-0032 seed)
BIP-0044 to implement a logical hierarchy for deterministic wallets based on an algorithm described in BIP-0032 (specific format of a BIP-0032 wallet)

Features
• Multiple logical "accounts" within each wallet.
• Fresh receive and change addresses are used for each transfer.
• Wallet only needs to be backed up once, on initial creation.
• Wallet backup consists of simple list of 12 common words (BIP-0039).
• Same wallet may be securely accessed concurrently from multiple devices.
• Wallet data is protected by Groestl passcode.
• Import paper wallets and sweep them.

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

Important:
Store your secret phrase somewhere safe!

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

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

Groestlcoin Wallet32 is available in the Blackberry World:
https://appworld.blackberry.com/webstore/content/59983902/

Source code:
https://github.com/Groestlcoin/groestlcoinj - Groestlcoin Java Library (for the Blackberry App and possibly other software)
https://github.com/Groestlcoin/GroestlCoin-Wallet32 - The Groestlcoin wallet32 Blackberry Source code

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If you want to use your Android wearables, track a watch address, use a NFC tag as encryption or send GRS over SMS then Aegis GroestlCoin wallet is the way to go!

Features
• NFC Security - Store your encryption key separate on an NFC tag
• Keys are encrypted on the device at all times
• Active Groestlcoin wallet - Balance and transactions are continuously updated in real-time
• If your phone is lost or stolen, your GRS is safe due to encryption
• New user interface that is easy to use
• Import of private keys
• Watch addresses - Track watch addresses
• SMS support - If you don't know a person's Groestlcoin address, you can put in their mobile number and they will receive an SMS telling them to reply with their Groestlcoin address. Once they reply, Aegis will take the address and ask you to confirm. The Aegis Wallet app does not read your SMS messages or send them to any place
• Android wear support - Support for android wear notifications, receive address, display qr code and balance
• Backup your Groestlcoins securely using the Aegis Backup feature, then restore your wallet when needed
• Transparant - Aegis Groestlcoin Wallet is free and open source

It is appreciated if feedback of the following is provided:
1. Can you receive coins? (small amounts to avoid losing them)
2. Can you send coins?
3. Can you scan a QR code from another phone?
4. Can you send GRS over SMS?
5. Does it calculate exchange rates properly?
6. How fast is a transaction?
7. Can you use a NFC tag as encryption without problems?
8. Is the watch-only function working properly?
9. Is your android wear working fine with Aegis Groestlcoin wallet?

Important:
Store your secret phrase somewhere safe!

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

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

Aegis Groestlcoin wallet is available in the Blackberry World:
https://appworld.blackberry.com/webstore/content/59984007/

Source code:
https://github.com/Groestlcoin/groestlcoinj - Groestlcoin Java Library for Aegis Groestlcoin wallet
https://github.com/Groestlcoin/AegisWallet - The Aegis GroestlCoin wallet

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If you want to solo mine with Groestlcoin then SGminer5-grs is the right choice for you

Features
• GBT solo mining support by using the --grs-address flag
• Support to add a signature to sign your mined blocks by using the --grs-sig flag
• Free software - Gnu GPL v3. Anyone can audit the code.
• Written in C - The code is short, and easy to review.
• User Friendly - no need to use the --difficulty-multiplier flag anymore
• Multiple Groestlcoin kernels included for testing

Example how to use:
sgminer.exe -k groestlcoin -o http://192.168.1.2:1441 -u u -p p --grs-address FZ4AfMJjHNzjtMHvFR244TZf2934Y6J5Fr --grs-sig YourSignatureHere -g 1 -w 256 --no-submit-stale -I 20 --gpu-engine 1100 --gpu-memclock 1500 --gpu-fan 100

It is appreciated if feedback of the following is provided:
1. Can you solo mine?
2. Can you pool mine?
3. Can you sign your own mined blocks?

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 or damage your CPU/GPU, no compensation will be given. Use this app solely at your own risk.

The application may have unfound bugs and problems. To leave feedback: 
1.  PM Wolf on bitcointalk: https://bitcointalksearch.org/user/wolf0-80740
2.  Email: [email protected]
3.  Reports of errors can also be posted in this topic.

Download the SGminer5-grs here: https://github.com/Groestlcoin/sgminer/releases/download/1.1/sgminer5-grs.zip

Source code: https://github.com/Groestlcoin/sgminer

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If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then vanitygen is the right choice for you to create a more personalized address.

Features
• Vanitygen accepts as input a pattern, or list of patterns to search for, and produces a list of addresses and private keys.
• Vanitygen's search is probabilistic, and the amount of time required to find a given pattern depends on how complex the pattern is, the speed of your computer, and whether you get lucky.
• Vanitygen includes components to perform address searching on your CPU (vanitygen) and your OpenCL-compatible GPU (oclvanitygen). Both can be built from source, and both are included in the Windows binary package.
• Upon finding a match for a given pattern, vanitygen will stop searching for additional matches for that pattern. To search for multiple matches for each pattern, use the -k option
• Prefixes are exact strings that must appear at the beginning of the address. When searching for prefixes, vanitygen will ensure that the prefix is possible, and will provide a difficulty estimate.  Exact prefixes are case-sensitive by default, but may be searched case-insensitively using the -i option
• The percentage displayed just shows how probable it is that a match would be found in the session so far. If it finds your address with 5% on the display, you are extremely lucky.  If it finds your address with 92% on the display, you are unlucky.  If you stop vanitygen with 90% on the display, restart it, and it finds your address with 2% on the display, your first session was unlucky, but your second session was lucky.
• Vanitygen uses the OpenSSL random number generator. This is the same RNG used by groestlcoin and a good number of HTTPS servers. It is regarded as well-scrutinized. On Linux, the RNG will be seeded from /dev/urandom. Guessing the private key of an address found by vanitygen will be no easier than guessing a private key created by groestlcoin itself. Nonetheless, if you feel the default RNG is unable to provide numbers that are sufficiently difficult to guess, vanitygen can be directed to seed the RNG from an external file using the -s option.
• To speed up address generation, vanitygen uses the RNG to choose a private key, and literally increments the private key in a loop searching for a match. As long as the starting point is not disclosed, if a match is found, the private key will not be any easier to guess than if every private key tested were taken from the RNG. Vanitygen will also reload the private key from the RNG after 10,000,000 unsuccessful searches (100M for oclvanitygen), or when a match is found and multiple patterns are being searched for.
• Free software - Gnu GPL v3. Anyone can audit the code.
• Written in C - The code is short, and easy to review.

To use vanitygen, you need to open a command line window and change to the directory where you extracted the vanitygen program.  An easy way to do this in Windows 7, hold down the shift key, right-click on the folder where you unzipped vanitygen, and select "Open command window here."  Then, you can type the vanitygen command at the prompt. Example how to use:
vanitygen -G FXSLUT
Difficulty: 264104224
Pattern: FXSLUT                                                               
Address: FXSLUT2zcZPnhJ7J3BqGUCQMj5cEUyN31V
Privkey: 5KNtRRpMfpYXVuSv86GF2pKhS4TDvVGy4c2L6psSLRkPikFbzUf

Note: Groestlcoin addresses consist of random digits and uppercase and lowercase letters, with the exception that the uppercase letter "O", uppercase letter "I", lowercase letter "l", and the number "0" are never used to prevent visual ambiguity.

It is appreciated if feedback of the following is provided:
1. Are you able to create vanity addresses for Groestlcoin?
2. Are you able to sweep the private keys (using any of our clients)?
3. Are you able to imprt the private keys (using any of our clients)?

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

The application may have unfound bugs and problems. To leave feedback: 
1.  PM Wolf on bitcointalk: https://bitcointalksearch.org/user/wolf0-80740
2.  Email: [email protected]
3.  Reports of errors can also be posted in this topic.

Download the Groestlcoin vanitygen here: https://github.com/GroestlCoin/vanitygen/releases/download/1.0/grs-vanitygen.zip

Source code: https://github.com/GroestlCoin/vanitygen

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

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

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

It is appreciated if feedback of the following is provided:
1. Can you receive coins? (small amounts to avoid losing them)
2. Can you send coins?
3. Does the cosigner pool work when using a multi-signature wallet?
4. Does the virtual keyboard work when it asks to enter your wallet password?
5. Does it automatically detect electrum1.groestlcoin.org and electrum2.groestlcoin.org under Tools - Network?
6. Are you able to sweep private keys?
7. Are you able to sign/verify messages?
8. Are you able to encrypt/decrypt messages?

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

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

Important:
Store your secret phrase somewhere safe!
The multi-signature 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%\Electryum-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 ~/Libarary/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 Linux wallet here: https://github.com/GroestlCoin/electrum-grs/releases/download/v2.5.4/Electrum-GRS-2.5.4_Linux_x86_64-Installer.bin
Download the OSX PKG wallet here: https://github.com/GroestlCoin/electrum-grs/releases/download/v2.5.4/Electrum-GRS-2.5.4-Installer.pkg
Download Windows wallet here: https://github.com/GroestlCoin/electrum-grs/releases/download/v2.5.4/Electrum-grs-2.5.4-Windows-setup.exe
Note: The QR code scanner is not supported in Windows and OSX binaries

Source code:
GitHub Source server: https://github.com/Groestlcoin/electrum-grs-server
Github Source client: https://github.com/Groestlcoin/electrum-grs

Merry Christmas everyone! Warmest wishes. Thank you for your support throughout the entire year. Happy holidays!

It's ok to cross promote but did u say few lines?  Wondering what your perception is of many lines then 
Good luck with your auction!

Ẁell the new upgrade is really great DEV, technically this coin is showing his reliability and with the updates of the code people knows it is being actively  worked, i would like to know  if we have actually some Dice site working?

thanks

i can see lot activity in area utility of GRS
good job of our brothers in algo

in case storage of wealth and a zero energy waste POS income
or the total new unique ultra rare crypto assets are also interesing to u
i wana shameless point u towards a project that was prepared whole 2015 by DMD Diamond
(as a big GRS stakeholder myself i think i can post a few lines here about this)

below zero? price can have a negative value also?

Reminder:
All users still using old 2.1.0.6 wallet please upgrade to 2.11.0

I'm still waiting going to the moon......
What can be the problem with this altcoin?
Nice developments, many owners but price almost below zero.
What do we need for the unique coin?

Besides technical developments there is nothing else. No marketing plans, we need help from the community for this. You got idea's?

Besides awesome technical development, what's the marketing plan behind Groestl? Anybody in here been involved with that part of development already?

Ah, another great feature to make use of my obsolete GPU's 

I have been in contact with Jackie on several developments here, but man, I must say I'm impressed with the progress and development done here! Will follow (and participate) more active here from now on