The database engine used depends on the wallet version you have created:
It is called wallet.dat .
Using Bitcoin Core’s console, you can export your private keys in plain text (dangerous) or use dumpwallet to create a readable backup.
This self-contained sovereignty has a dark side: the lack of recourse. In 2013, a user famously threw away a hard drive containing 7,500 bitcoins (worth over $500 million at peak). The coins are not "lost" on the blockchain; they are eternally frozen, their private keys rotting in a landfill. The wallet.dat file is simultaneously a key to wealth and a fragile artifact that demands reverence. Bitcoin Core Wallet.dat
Unlike modern "light" wallets that rely on a single twelve-word mnemonic seed phrase by default, Bitcoin Core historically managed keys through a more complex pool system within this specific file. This guide breaks down everything you need to know about managing, protecting, and recovering your Bitcoin Core wallet.dat file. 1. What is the Wallet.dat File?
This is useful for separating funds (business vs. personal) or for running a "watch-only" wallet (containing only public keys to observe addresses without spending ability).
This 2023 study explores the practical implementation of cryptographic algorithms used in the Bitcoin Core wallet and uncovers critical architectural vulnerabilities: The database engine used depends on the wallet
A pre-generated batch of unused private keys (typically 100 or 1000) used for creating new receiving and change addresses.
Descriptor wallets offer several clear advantages:
For anyone serious about managing their own Bitcoin, few files are as important as the wallet.dat . As the heart of the Bitcoin Core client, this unassuming file holds the keys to your digital wealth. Losing or corrupting it without a backup can mean losing your Bitcoin forever. This comprehensive guide explores everything you need to know about the wallet.dat file, from its technical structure and default locations to essential security practices, backup strategies, and recovery methods. In 2013, a user famously threw away a
A raw, unencrypted wallet.dat file stores your private keys in plain text. If a malicious actor gains access to your computer, extracts an unencrypted wallet.dat file, and moves it to another machine, they can instantly steal all your funds without needing your computer password. How to Encrypt Your Wallet Open the Bitcoin Core GUI.
A reserve of pre-generated keys used for future transactions and change addresses.