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BitcoinBTC
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Recommended Fees
Good
sat/vB
Fair
sat/vB
Poor
sat/vB
Fast ~10 min · Normal ~30 min · Slow ~1 hour
Difficulty Adjustment
Progress
Remaining Blocks
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Estimated Change
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Est. Time
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Halving Countdown View Details →
Until 5th Halving
blocks remaining
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Progress--%
Mempool Congestion Details →
Unconfirmed Transactions
Unconfirmed TX
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Total Size
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Fee Distribution by Range
Low FeeHigh Fee
Network Hashrate Details →
EH/s (Exahash/Seconds)
Last 30 Days Trend
Lightning Network Details →
Nodes
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Channels
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Network Capacity
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Avg Fee
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Instant Payment · Ultra-Low Fees · Off-Chain
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Bitcoin Network Glossary
Recommended Fee (Transaction Fee)

The fee paid to miners when sending Bitcoin. Measured in sat/vB (satoshi/virtual byte), higher fees result in faster transaction processing.

Fast: Next block (~10 min) Normal: Within 3 blocks (~30 min) Slow: Within 6 blocks (~1 hour)
Tip: Fees spike during network congestion. If not urgent, selecting "Slow" can save costs.
Block

A bundle of Bitcoin transactions. A new block is created when a miner solves a mathematical puzzle, approximately every 10 minutes. Each block has a maximum size of about 4MB (including SegWit).

Avg generation: 10 minMax size: ~4MB~144 per day
Difficulty Adjustment

Mining difficulty automatically adjusts every 2,016 blocks (approximately 2 weeks). If block generation is faster than 10 minutes, difficulty increases; if slower, it decreases. This keeps the block generation rate constant.

Cycle: 2,016 blocks (~2 weeks)+ = Difficulty increase- = Difficulty decrease
Tip: A difficulty increase (+) means mining competition is intensifying and network security is strengthening.
Halving

An event where mining rewards are cut in half every 210,000 blocks (approximately 4 years). It is a key mechanism to maintain Bitcoin's maximum supply of 21 million BTC, and historically prices have shown significant increases after halvings.

Cycle: 210,000 blocks (~4 years)Current reward: 3.125 BTCNext: 1.5625 BTC
Data Provider: mempool.space · CoinGecko · Auto-refresh every 60 seconds