On Wed, Apr 30, 2025 at 12:26 AM Michael Tidwell <[email protected]> wrote: > - 2. Single Entity rush spends: > A single entity generates QC signatures and tries to rapidly flip the UTXOs > while having their first mover competitive edge. They either broadcast to the > mempool, partner with miners, or mine directly. This creates potential miner > collusion if P2PK fees remain low, pressuring the QC entity to raise fees and > incentivize miners before their competitive advantage expires and others > catch up. > [...] > > - 4. Patient Miner: > A single QC capable entity, also operating as a miner or partners with a > miner, chooses to be patient, including P2PK transactions only in their own > blocks to maximize long-term profits.
IMHO for a single QC capable entity even if it mines itself or partners with a miner, it would make sense to broadcast the transaction publicly. If it doesn't broadcast, then it can only capture one UTXO when it mines a block - rarely, depending on their hashrate share. If it mines itself and broadcasts at the same time, there is a possibility that another miner includes the transaction into a block. So a rational QC capable entity would broadcast in addition to mine themselves. Also it would make sense to use different UTXOs for broadcasting and for self mining: if another miner mines one UTXO, the QC entity can continue mining another UTXO trying to mine the next block with it. If they use the same UTXO, they would have to quickly make a signature for a fresh UTXO for their own block. Or just have a pool of attacked UTXOs and take them one by one... -- Best regards, Boris Nagaev -- You received this message because you are subscribed to the Google Groups "Bitcoin Development Mailing List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/bitcoindev/CAFC_Vt6c_DwmpCzNVCRWzz9E2AGn0PpkZzLeYeGNE1tYbUzyOA%40mail.gmail.com.
