Lightning

Lightning Network enablers. 4 proposals.

BIP 68: Relative lock-time using consensus-enforced sequence numbers: Deployed. Gives transactions a "relative lock-time," so a coin cannot be spent until a set number of blocks or amount of time has passed since it was confirmed. This is an essential building block for payment…
BIP 114: Merkelized Abstract Syntax Tree: Closed. Proposed MAST, which organizes a script's possible spending conditions into a tree so that only the condition actually used needs to be revealed. This saves space and improves privacy by hiding…
BIP 118: SIGHASH_ANYPREVOUT for Taproot Scripts: Draft. Proposes SIGHASH_ANYPREVOUT, a signature type for Taproot scripts that does not commit to the exact coin being spent, so one signed transaction can be attached to any compatible coin. This would…
BIP 119: CHECKTEMPLATEVERIFY: Draft. Proposes CHECKTEMPLATEVERIFY, a script instruction that restricts coins so they can only be spent in a transaction matching a predetermined template. This 'covenant' could enable vaults that protect…