Metadata-less Signing

How to sign transactions without requiring metadata updates using Nova Wallet and Polkadot Vault

Using Polkadot Vault v7.0.0 and higher, you can sign transactions on any network without needing to add the network’s metadata to your Polkadot Vault device. This functionality must be supported by the wallet you are using, and is available in Nova Wallet. You need to still add the chain specs for the chain that you wish to use: Update Chain Specs in Polkadot Vault

1. Ensure that you have added the chain spec for the chain that you wish to interact with.

2. Ensure that you have added the correct account with the correct derivation path to your Nova Wallet.

3. On your Nova Wallet device, select the correct account by selecting the identicon at the top right of the assets screen and then selecting the correct account. You may need to follow these steps Add Polkadot Vault Account to Nova Wallet

4. Create the transaction on your Nova Wallet device.

5. ``Select`` Continue, and then review the contextual information and select Confirm on your Nova Wallet device.

6. A QR code will now appear on your Nova Wallet device. You will see 2 QR codes. The “New (Vault v7+)” QR code is an animated QR code that allows you to sign transactions without updating or adding the chain’s metadata.

7. On your Polkadot Vault device, select the QR code scanner.

8. Scan the QR code with your Polkadot Vault device and then review the transaction details and sign the transaction.

9. A QR code will now appear on your Polkadot Vault device. On your Nova Wallet device, select Continue and then scan the QR code that is on your Polkadot Vault device.