About Sentinel

Sentinel Watch Only is your online companion for your offline and cold storage bitcoin wallets. Available on mobile for Android only.

Launched in 2015 by the developers of Samourai Wallet, it is the first and most feature filled offline and cold storage wallet management tool. Designed to work seamlessly with Samourai Wallet and other popular wallet software.

• Keep your private keys private. Sentinel is public key based.
• Keep watch of any bitcoin address or public keys
• Receive into your offline or cold storage bitcoin wallet
• Build and broadcast offline bitcoin transactions
• Connect to your own full node
• Route everything over Tor