"The proposal, titled Provable Address-Control Timestamps (PACTs), outlines a three-step method using existing Bitcoin tools to timestamp cryptographic proof of wallet ownership. No onchain transaction is required. No public signal is broadcast."
"If cryptographically relevant quantum computers (CRQCs) arrive before the protocol adapts, addresses with exposed public keys become vulnerable to theft. If Bitcoin rushes a sunset soft fork to freeze those addresses, dormant holders face a forced, public coin migration."
"Researchers estimate those wallets hold approximately 1.1 million BTC, worth more than $75 billion at current prices, which would be exposed if quantum computers become operational."
Dan Robinson proposed Provable Address-Control Timestamps (PACTs) to help dormant bitcoin holders prove ownership without public exposure. The method uses existing Bitcoin tools to timestamp proof of wallet ownership without requiring onchain transactions. This proposal addresses the risk posed by cryptographically relevant quantum computers, which could compromise exposed public keys. Approximately 1.1 million BTC, linked to Satoshi Nakamoto, could be at risk if quantum threats materialize. PACTs require future STARK verification support and community consensus for implementation.
Read at news.bitcoin.com
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