Odaily News Crypto exchange Kraken has launched a self-hosted wallet, "Kraken Wallet," which will initially support eight blockchains, including Bitcoin, Ethereum, Solana, Optimism, Base, Arbitrum, Polygon, and Dogecoin. Kraken said the wallet is open source and developers can access and contribute to the code. Kraken will also award rewards to developers who discover vulnerabilities through the open source funding program.