Node Wallet

Creating your node's wallet

The node wallet (aka mining key) provides a miner with their:

• mining address: where mining rewards are sent

• packing address: used to prepare data for mining (same as mining address)

• signing key: private key used to sign blocks when a mining solution is found

For more information on how mining works see: How Mining Works

If you lose your node wallet you will not be able to access your mining rewards or sign new blocks. We strongly recommend you backup your node wallet.

The node wallet is stored in [data_dir]/wallets and is required for all node types. If one is not present when the node first launches, it will be automatically created. If you're not running a miner it is probably fine to rely on this automatically created wallet. For miners, however, we recommend creating or importing your wallet explicitly.

You can create a wallet with the provided wallet tool:

./bin/arweave wallet create rsa [data_dir]

This script will create the wallet and place it in the [data_dir]/wallets directory. See Directory Structure for more information on setting your data_dir.

If you want to use an existing wallet, place it in [data_dir]/wallets. Imported wallets must bin in .json format and be named arweave_keyfile_ADDRESS.json where ADDRESS is the address associated with the wallet.

Note: when using coordinated mining, the wallet only needs to be present on the exit node.

Make sure to never share you wallet with anyone.