If activated, the Hourglass V2 proposal will ensure that only one P2PK output may be included as a transaction input per block. Furthermore, no P2PK outputs to any address not currently being spent from can be created. Lastly, no P2PK outputs can be created from other output types.
Rationale For The ProposalHowever, under the rules of the Hourglass V2, it would take more than 32 years to move all P2PK coins, which drastically reduces quantum-related market risks. A positive is that original keyholders, such as Satoshi Nakamoto, should remain able to move their coins even after the proposal is activated, as long as no quantum actors are currently competing for P2PK transactions.
