Cashu Cache

Cache (noun): a squirrel’s 🥜 stash

Cashu Cache lets you create a NIP-60 compliant Cashu Wallet and advertizes the NIP-61 public key so you can receive NutZaps. It also makes a backup of the wallet so you never lose the private key.

Choose the NUT-11 compliant mints you are comfortable using. If a mint is not in the list, it may not be NUT-11 compliant, or is not known to Cashu Auditor (in which case, donating a token from that mint will add it to the list)
These are the Nostr relays where your ecash will be stored (max recommended 2-4). Use the button to fetch your relays if using a NIP-07 extension.
Wallet Update Options:
Adds a new private key and NIP-61 public locking key to your wallet. Rotating keys improves privacy, and existing private keys are preserved.
WARNING: This will replace any existing wallet. To preserve keys, fetch your existing wallet first

About this tool

This tool creates the following Nostr events:

NIP-60 Wallet (kind:17375) – this creates a Cashu wallet stored in Nostr, which means it is accessible across applications. It contains the mints you use and a random private key (separate to your Nostr nsec).

NIP-60 Wallet Backup (kind:375) – this is a backup of your NIP-60 wallet, and is exactly the same as the kind:17375 event, with the addition of a tag containing your public key to allow easy retrieval if needed.

NIP-61 NutZap informational event (kind:10019) – this tag tells other people how to send ecash to you. It contains the mints you use, the relays you’ll read NutZaps from, and the pubkey they should P2PK lock your ecash to. The pubkey corresponds to the private key in your kind:17375 wallet.

Once created, your NIP-60 Wallet private key and NIP-61 NutZap public key can be used to NutLock tokens too.

NOTE: You can import and upgrade legacy kind:37375 wallets. Be aware that not all apps have moved to the new NIP-60 specification yet, so changes you make will only be visible in NIP-60 compliant wallet apps going forward.

Was this tool useful?

If you appreciate this tool, please consider donating some sats. Value4Value!