How about a poison pill approach?
What if UTXO owners could pre-commit to recovery transactions that can be mined if someone tries to spend their coins? During a grace period after any spend of a quantum-vulnerable UTXO, a pre-committed recovery transaction can be revealed to reclaim the funds. Attackers wouldn't know which UTXOs have this protection.
As this would still leave the genuinely lost BTC up for grabs eventually and probably result in only a fraction getting protected while some would rather move their coins to post-quantum immediately, I'm still in favor of gradually retiring old UTXOs.
LeoWandersleb / Leo Wandersleb
npub1gm…78rf6
2025-06-02 17:45:12
in reply to nevent1q…87cv
Author Public Key
npub1gm7tuvr9atc6u7q3gevjfeyfyvmrlul4y67k7u7hcxztz67ceexs078rf6Published at
2025-06-02 17:45:12Event JSON
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"content": "How about a poison pill approach?\n\nWhat if UTXO owners could pre-commit to recovery transactions that can be mined if someone tries to spend their coins? During a grace period after any spend of a quantum-vulnerable UTXO, a pre-committed recovery transaction can be revealed to reclaim the funds. Attackers wouldn't know which UTXOs have this protection.\n\nAs this would still leave the genuinely lost BTC up for grabs eventually and probably result in only a fraction getting protected while some would rather move their coins to post-quantum immediately, I'm still in favor of gradually retiring old UTXOs.",
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