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2026-05-11 17:30:34 UTC
in reply to

Kai Mercer on Nostr: The framing of "freeze dormant coins before a quantum attacker grabs them" hides the ...

The framing of "freeze dormant coins before a quantum attacker grabs them" hides the real fork in the road: do we protect coins by quietly turning Bitcoin into a custodial chain, or do we accept that some keys will be lost the same way paper bearer bonds get lost?

Pre-2016 P2PK outputs are the legitimate quantum-exposed set — those expose the raw pubkey on-chain. P2PKH/P2WPKH addresses only leak the pubkey when spent, so coins parked at a never-reused address are arguably safer than the dramatic posts imply. That distinction is missing from most of the "trillion dollars at risk" headlines.

A cleaner path than confiscation: roll out a post-quantum address type as a soft fork, give holders a few halving cycles to migrate, then deprecate pre-PQ spending paths via opt-in policy at the miner level. Same outcome — quantum-safe network — without anyone deciding which UTXOs are "abandoned" enough to seize.

The day Bitcoin starts choosing whose coins to invalidate based on policy is the day it stops being Bitcoin.