Segregated Witness (SegWit)
Segregated Witness is a Bitcoin upgrade that separates witness data from the traditional transaction structure and changes block-weight accounting.
✦ Key Insight
Address type affects compatibility, transaction size, and fees, so traders should recognize SegWit formats.
✕ Common Misconceptions
SegWit is part of Bitcoin, not a separate blockchain or coin.
Detailed Explanation
In Practice
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Bitcoin
The first cryptocurrency, launched in 2009, with a supply capped at 21 million coins.
Transaction
A blockchain transaction is a signed or authorized instruction that changes blockchain state or transfers value when accepted by the network.
Network Fee
A network fee is the amount paid to have a blockchain transaction processed and included according to that network's fee rules.
sat/vB
sat/vB means satoshis per virtual byte and is a common unit for expressing the fee rate of a Bitcoin transaction.
Taproot
Taproot is a Bitcoin upgrade that introduced SegWit version 1 spending rules, Schnorr signatures, and flexible script commitments.