The reason I’m against drivechain is that it creates additional incentives for miner centralization.
Today, a 51% attacker can’t take your coins other than rewriting history back to before you got them. But under drivechain, a 51% attacker can sweep sidechain coins by building blocks forward (no history rewrite necessary).
In addition, even in the absence of a 51% attacker, miners vote on which chains to activate/deactivate. This gives great power to mining pool operators who command voting hash. Switching pools, rather than being a purely economic choice, would become a political choice—that is, picking a pool that votes the way you want to for sidechain activation/deactivation.
jimbocoin / jimbocoin 🃏
npub1v9…x9q3h
2023-08-29 03:45:02
in reply to nevent1q…4rnf
Author Public Key
npub1v9qy0ry6uyh36z65pe790qrxfye84ydsgzc877armmwr2l9tpkjsdx9q3hPublished at
2023-08-29 03:45:02Event JSON
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"pubkey": "6140478c9ae12f1d0b540e7c57806649327a91b040b07f7ba3dedc357cab0da5",
"created_at": 1693280702,
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"content": "The reason I’m against drivechain is that it creates additional incentives for miner centralization.\n\nToday, a 51% attacker can’t take your coins other than rewriting history back to before you got them. But under drivechain, a 51% attacker can sweep sidechain coins by building blocks forward (no history rewrite necessary).\n\nIn addition, even in the absence of a 51% attacker, miners vote on which chains to activate/deactivate. This gives great power to mining pool operators who command voting hash. Switching pools, rather than being a purely economic choice, would become a political choice—that is, picking a pool that votes the way you want to for sidechain activation/deactivation.",
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