I'm not sure about the idea that a miner could guess -- the point of a cryptographic hash is to make that impractical. We're not talking about CRC32 here. If th

I'm not sure about the idea that a miner could guess -- the point of a cryptographic hash is to make that impractical. We're not talking about CRC32 here. If there was discussion out there about protocols that involve keeping salts private I could be persuaded that it's a valid idea.