This is a proposal to mitigate against potential mass liquidation of P2PK funds. The specification is pretty simple, but the motivation and justification for it is a bit longer. https://github.com/cryptoquick/bips/blob/hourglass/bip-hourglass.mediawiki Feedback welcome! -- You received this message because you are subscribed to the Google Groups "Bitcoin Development Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an email to bitcoindev+unsubscribe@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/bitcoindev/db3d0ec4-90b8-44a4-b912-b98ec9083b10n%40googlegroups.com.