4 ms·

Bitcoin can be manipulated. Use timestamp from last supernova observation. There's several hundred a year, should be enough randomness.

• Tepix 5y ago
  Who makes these observations? Can those timestamps be manipulated as well?
  • ajuc 5y ago
    Astronomers all over the world.
    • wackro 5y ago
      Astronomers could ignore newly spotted supernovae if their timestamps would be unfavourable to their lottery chances, no?
      • dathos 5y ago
        Imagine studying and studying so you can get access to equipment that detects supernovas just to try and scam a lottery. And then you end up caught since you're not the only one observing.
        • wackro 5y ago
          It'd make for a good TV drama wouldn't it?
• mistrial9 5y ago
  in any massively synchronized system of nodes, timestamps are an important, non-obvious topic. The words "can be manipulated" don't tell that story. Others can jump in with the details but this is a lottery and random-number thread.
• tromp 5y ago
  The bitcoin block hashes are almost entirely manipulation proof. A miner could decide to withhold a winning block at a cost of hundreds of thousands of dollars, but that's about it. And with the long running key derivation function, they have no idea how a hash even effects the outcome.