Historical retrospective · Bitcoin
BIP 119 proposed a template-based covenant opcode
BIP 119 describes OP_CHECKTEMPLATEVERIFY, a proposal to let outputs constrain future transactions to a committed template.
Supporters have explored uses such as payment pools and congestion-control techniques, while critics have debated scope, trade-offs and activation process.
The discussion illustrates a defining Bitcoin governance tension: proposals can be technically narrow yet socially contentious when they alter spending expressiveness.
The draft’s existence should not be mistaken for an activated feature; the public record is essential context for any claims about current capability.
Primary source
This retrospective summarizes the source below in original language. The displayed year refers to the dated event, proposal or specification; it is not the article’s publication date. This is not investment, legal or security advice.