Sending, receiving and scaling payments beyond the base layer.
What you will learn
Bitcoin payments involve addresses, fees, confirmations, and sometimes a second layer. Follow the base-layer sending checklist first, then learn how Lightning channels exchange speed and small-payment efficiency for new liquidity and backup responsibilities.
By the end, you can
Choose an address and fee rate carefully
Explain confirmation and replacement behavior
Understand channels, liquidity, and Lightning custody
How to use this learning path
Use the same three checks as you move through the guides. They turn a topic list into a repeatable research process.
Check the evidence
Confirm whether a payment uses the Bitcoin base layer or Lightning, whether the wallet is custodial, how fees are selected, and what backup model applies. Specifications and wallet documentation matter because similar interfaces can hide different settlement and recovery paths.
Name the risk
Common failures include using the wrong network, sending to an expired or incompatible request, choosing a poor fee, lacking inbound Lightning liquidity, or assuming a service balance is self-custody. Speed does not erase operational risk.
Guides in this topic
Follow the lessons in order, or open the question you need now.