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Segregated Witness (SegWit)

Segregated Witness (SegWit)

Production
Mainnet Upgrade Bitcoin Upgrade

SegWit, activated in August 2017, restructures Bitcoin transaction data to increase block capacity, fix transaction malleability, and enable Layer 2 solutions like Lightning.

Technical Details
Liveness Status
Production
Consensus Mechanism
Proof of Work
Security Model
Bitcoin L1
Data Availability
Bitcoin L1
Bridge Mechanism
None
External Links
Bitcoin Website
https://bitcoin.org
BIP-0141
https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki
Metadata
Slug
segwit
Category
Bitcoin Scaling
Secondary Category
Bitcoin Upgrade