[ANN][GRS] Groestlcoin | 1st to activate Segwit & Taproot

[gruve_p]

Electrum-grs Blackberry is a lightweight "thin client" Groestlcoin Blackberry wallet based on a client-server protocol. Its main advantages over the original Groestlcoin Blackberry wallet include support for not requiring to sync with the blockchain.

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

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

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

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

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

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

Important:
Store your secret phrase somewhere safe!

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

The application may have unfound bugs and problems. To leave feedback: 
1. PM hashengineering on bitcointalk: https://bitcointalk.org/index.php?action=profile;u=155038
2. Email: hashengineeringsolutions@gmail.com
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

[gruve_p]

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

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or future hardware wallets).
Sentinel accepts XPUB's, YPUB'S and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's and YPUB's) deterministically generate addresses for that particular wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

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

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

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

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

The application may have unfound bugs and problems. To leave feedback: 
1.  PM hashengineering on bitcointalk: https://bitcointalk.org/index.php?action=profile;u=155038
2.  Email: hashengineeringsolutions@gmail.com
3.  Reports of errors can also be posted in this topic.

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

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

[gruve_p]

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

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or future hardware wallets).
Sentinel accepts XPUB's, YPUB'S and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's and YPUB's) deterministically generate addresses for that particular wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

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

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

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

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

The application may have unfound bugs and problems. To leave feedback: 
1.  PM hashengineering on bitcointalk: https://bitcointalk.org/index.php?action=profile;u=155038
2.  Email: hashengineeringsolutions@gmail.com
3.  Reports of errors can also be posted in this topic.

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

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

[danielhodous]

Damn market didn't like

[micle222]

Damn market didn't like

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

[IMZ]

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

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

Whoo! That's us!

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

Hey, Dave.

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

[IMZ]

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

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

[dgmon]

I'm not getting any connections in the new Electrum wallet.  (Windows)

Please advise, kind sirs and madams.

[dgmon]

I'm not getting any connections in the new Electrum wallet.  (Windows)

Please advise, kind sirs and madams.

Never mind, I got some now :-)

By the way, can any exchanges handle withdrawals to a segwit address yet?  And how about deposits?  Is there a table somewhere?

[jackielove4u]

I'm not getting any connections in the new Electrum wallet.  (Windows)

Please advise, kind sirs and madams.

Which version are you using?

[jackielove4u]

By the way, can any exchanges handle withdrawals to a segwit address yet?  And how about deposits?  Is there a table somewhere?

None that we are aware of currently

[danielhodous]

Damn market didn't like

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

What I mean is if you watch the price it has gone down tremendously recently.  Some based on all around market conditions some based on the release.  People want more.  I still like GRS and the project.  I am still holding all my assets.  I just know PR marketing, and its a finicky thing. 

[NickCrypto]

Groestlcoin realtime data on web; working with Chrome, Firefox, and Safari
https://bitscreener.com/coins/groestlcoin/real_time

[kchulani]

In my view I still love this cryptocurrency, looking more towards summer I really see GRS taking a stance on the true community decentralized coins. It has a great follower base and I like the fact that they are following in teh footsteps of monero by keeping their algo asic resistant.

[micle222]

Damn market didn't like

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

What I mean is if you watch the price it has gone down tremendously recently.  Some based on all around market conditions some based on the release.  People want more.  I still like GRS and the project.  I am still holding all my assets.  I just know PR marketing, and its a finicky thing. 

Sorry if I have misunderstood.
I also often feel that way.
The market is not conducive and tends to see something new within the project.
Success for you.

[digitalbarter]

I really like the name ( crystal coin ) sounds similar to groestl and easy to pronounce
After so much research i found it amazing that only groestl coin has amazing developments and this is actually a real deal at a best price with less supply... good time now cryptos are so low this coin has already reached almost 2 usd and i could easily see this reaching great highs..

[kchulani]

Crystal Coin? Hmm not bad... There are so many great names they can choose from. But is GRS actually thinking of a rebranding? Awhile back I heard in June or July.. but I am still not 100% sure. Does anyone know? Other than that I think this coin is great. It functions amazing. I hope we can attract a larger community this year.

[digitalbarter]

Crystal Coin? Hmm not bad... There are so many great names they can choose from. But is GRS actually thinking of a rebranding? Awhile back I heard in June or July.. but I am still not 100% sure. Does anyone know? Other than that I think this coin is great. It functions amazing. I hope we can attract a larger community this year.

Yeah a name similar to the groestl coin.. i also found they are completely different they are the real devs who are actually working full time on GRS. Their algorithm is different and also they have so many wallets i have not seen any coin like this even after researching many many coins even vertcoin does not come close to GRS its amazing and fast coin syncs really fast as well.. happy to have GRS

[digitalbarter]

found a wiki link of the groestl algorithm
https://en.wikipedia.org/wiki/Grøstl

its amazing that this is whole new algo like dash or monero its just not seen by many investors because of so many forks but this is not a fork its a new algorithm which is proven from 2014 to be great... the coin is a real winner the devs have been working very hard for all the upcoming technologies   ( atomic swaps , lightning network ) this is just undiscovered treasure glad to be in a in groestl community. keep up the good work

[tadashi_ito]

It seems like groestl will reach 2000% up or more ... volumes seems to be going up heavily... the coin is very undervalued compared to its development of wallets and the big exchange it has... very cool and nice coin...