Module version_bits 

BIP9-style version bits activation.

Computes soft-fork activation height from block header version bits so the node can enforce a fork when miners signal (e.g. BIP54) without a fixed activation height.

Structs

Bip9Deployment

BIP9 deployment parameters (bit index and time window).

Constants

ACTIVATION_THRESHOLD

BIP9 activation threshold (95% of LOCK_IN_PERIOD).

LOCK_IN_PERIOD

BIP9 lock-in period (2016 blocks).

Functions

activation_height_from_headers

Computes the activation height for a BIP9 deployment from recent block headers.

bip54_deployment_mainnet

Returns the BIP54 deployment for mainnet when using version-bits activation.

merge_bip54_activation_candidate

Combine a running BIP54/version-bits activation height with a new candidate from activation_height_from_headers. Keeps the minimum (earliest) height.