Lightning Network
The Lightning Network is a Layer 2 payment network for Bitcoin that enables near-instant, low-fee transactions through off-chain payment channels sett
The Lightning Network is a Layer 2 payment network for Bitcoin that enables near-instant, low-fee transactions through o...
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Sep 2026 · Punteggio di freschezza: 50%
What is Lightning Network?
The Lightning Network is a Layer 2 payment network for Bitcoin that enables near-instant, low-fee transactions through off-chain payment channels sett
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The Lightning Network is a second-layer payment protocol on Bitcoin that enables fast, low-cost, high-volume payments through a network of payment channels, moving most transactions off-chain.
Lightning addresses Bitcoin's scalability and fee problems — enabling micro-payments, streaming money, and everyday commerce that on-chain fees make impractical. It extends Bitcoin's utility without changing its base layer, and it is the mo
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1. What Is the Lightning Network
The Lightning Network is a second-layer payment protocol on Bitcoin that enables fast, low-cost, high-volume payments through a network of payment channels, moving most transactions off-chain.
2. How It Works
Users open payment channels by funding a multisig output on-chain. Within a channel, unlimited transactions can be exchanged off-chain by updating signed balances — only the final state is settled on-chain. Channels connect into a network, and payments route through intermediate nodes (hash time-locked contracts, HTLCs), enabling payments between parties without a direct channel.
3. Why It Matters
Lightning addresses Bitcoin's scalability and fee problems — enabling micro-payments, streaming money, and everyday commerce that on-chain fees make impractical. It extends Bitcoin's utility without changing its base layer, and it is the most prominent example of off-chain scaling.
4. Key Facts
- Payment channels settle in seconds with minimal fees
- HTLCs route payments securely across untrusted nodes
- Channel capacity and routing liquidity determine usability
- Lightning also powers emerging apps like Nostr payments
5. Related Concepts
- bitcoin
- layer-2
- payment-rail
- state-channel
Frequently Asked Questions
What is Lightning Network?
The Lightning Network is a Layer 2 payment network for Bitcoin that enables near-instant, low-fee transactions through off-chain payment channels sett
How does Lightning Network work?
The Lightning Network is a second-layer payment protocol on Bitcoin that enables fast, low-cost, high-volume payments through a network of payment channels, moving most transactions off-chain. Users open payment channels by funding a multisig output on-chain. Within a channel, unlimited transaction
Why does Lightning Network matter in Web3?
- layer-2 - payment-rail - state-channel