Introduction to Bitcoin Wallets

Getting Started

To begin using Bitcoin, you need two essentials: a wallet and a method to acquire Bitcoin. This guide focuses on wallets, adapted from the Bitcoin Diploma curriculum.

What is a Bitcoin Wallet?

Contrary to common misconception, Bitcoin doesn't physically reside in your wallet. Instead, it exists on the distributed, public ledger that the Bitcoin network constantly verifies. True ownership requires holding private keys that enable transaction signing and asset transfer.

Your wallet is essentially a tool for managing these private keys and interacting with the Bitcoin network.

Wallet Custody Types

Self-Custodial Wallets

• You retain private keys and complete control over your Bitcoin
• No account freeze or approval processes
• Full responsibility for security and recovery
• High protection against arbitrary confiscation
• Recommended for long-term savings

Custodial Wallets

• Third party holds private keys on your behalf
• User-friendly with recovery support
• Internet-connected funds face hacking vulnerability
• Custodians can freeze accounts or rehypothecate assets
• Best for small amounts and daily spending

Recommended Mobile Wallets

Wallet	Type	License
Blink	Custodial	Open source
Wallet of Satoshi	Custodial	Closed source
Aqua	Self-custodial	Open source
Phoenix	Self-custodial	Open source
Breez	Self-custodial	Open source
Zeus	Self-custodial	Open source
Muun	Self-custodial	Open source
BlueWallet	Self-custodial	Open source
Blockstream Green	Self-custodial	Open source

Selection Criteria

When choosing a wallet, carefully evaluate these factors:

• Security measures – Encryption, multi-signature support, biometric protection
• Privacy features – Address rotation, coin control, Tor support
• User-friendliness – Interface design, ease of backup and recovery
• Fee structures – Transaction fees, ability to customize fee rates
• Reputation – Community trust, track record, active development
• Private key control – Self-custodial vs custodial
• Advanced features – Custom fees, Lightning Network support, hardware wallet integration

Cold Storage (Hardware Wallets)

For significant Bitcoin holdings, hardware wallets provide the highest level of security by keeping your private keys offline:

• Coldcard – Air-gapped, Bitcoin-only hardware wallet
• Blockstream Jade – Open-source, affordable option
• Bitbox02 – Swiss-made, simple design
• Passport – Premium build quality, open-source
• Seedsigner – DIY air-gapped signing device
• Trezor – Long-standing reputation, user-friendly

Transaction Types

Lightning Network

Near-instant, low-cost transactions ideal for daily use. Perfect for buying coffee, tipping, or small payments. Most modern mobile wallets support Lightning.

On-Chain (Base Layer)

Secure, high-value transactions suited for long-term savings and larger amounts. Provides the highest level of security and decentralization.

Next Steps

Ready to acquire Bitcoin? For comprehensive acquisition methods and best practices, consult Chapter 7 of the Bitcoin Diploma.

Want deeper learning? Sign up for live classes through My First Bitcoin's education platform.