narwal -- not a real wallet. narwal is a "lite" wallet server for Sia, using the walrus wallet API. You can use it with any walrus-compatible program, such as walrus-cli. narwal watches the blockchain for you, tracking transactions and outputs relevant to your wallet, but it never sees your seed or private keys. It's a great choice for users who want to store their siacoins more securely, but aren't ready to make the leap to running a full node just yet. For more info, see this blog post. Getting started is easy. Here, I just generated a fresh instance for you: narwal.lukechampine.com/wallet/c7f6e01dc87d0b5c You can use this URL as your personal walrus server. For example, when using walrus-cli, pass that URL to the -a flag. Then you can start generating addresses (using a seed, or a perhaps a Ledger) and narwal will track them for you. Keep your URL private! Anyone who knows your URL can make changes to your wallet, so you should treat your URL like a password. Donations All narwal servers have a public donation address, visible at /donations. Some programs will automatically donate some of your siacoins to this address. For example, when you send a transaction with walrus-cli, it will donate 1% of the transaction value. Security narwal never sees your private keys, but it sees just about everything else: your addresses (including unlock conditions), your unspent outputs, your transactions (including any memos you've attached), your file contracts, and any blocks you've mined. It will also see your IP address. Taken together, these pieces of metadata may be sufficient to "deanonymize" you. You should not use narwal if your threat model requires anonymity. You are also trusting narwal to accurately report your wallet metadata. A malicious narwal server can lie about your balance, which addresses and outputs you control, which transactions are relevant to your wallet, and basically any other piece of metadata. A few of these claims can be verified on-the-spot (e.g. checking a transaction signature), but most cannot be repudiated without another source of "blockchain truth," i.e. a trusted full node.