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Paradigm proposes a timestamp escape mechanism to protect Bitcoin from the Satoshi era against quantum attack threats.

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Golden Finance reports that on May 2nd, Paradigm researcher Dan Robinson proposed a new scheme called PACT (Proof of Address Control Timestamp), aimed at protecting long-term dormant Bitcoin addresses, including early addresses of Satoshi Nakamoto, from future quantum computing attacks.
This mechanism allows users to prove their control over an address through a timestamp without needing to transfer assets or expose on-chain activity. Once a future quantum attack occurs, assets can be recovered based on this proof in a quantum-resistant version of the Bitcoin network. Compared to forced migration schemes (such as BIP-361), PACT avoids privacy exposure issues caused by actively transferring assets, providing long-term holders with a more flexible preemptive protection path.
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