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 or BIP 44 XPUB (Extended Public Key).

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 and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB'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.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 or Addresses - Add multiple XPUB'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?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.com3. Reports of errors can also be posted in this topic.Groestlcoin Sentinel is available in the Blackberry World:Source code: https://github.com/Groestlcoin/groestlcoin-sentinel-android - The Groestlcoin Sentinel source code