Vrax onPons

1. T−3:00Publish commit = SHA256(server_seed) and the number of a future Robinhood Chain block that lands after S2.
2. T−0:00Take S2, then publish the snapshot file (wallets, tickets) and its hash.
3. T+~5sRead the blockhash once the target block is produced.
4. Computeseed = SHA256(server_seed + ":" + blockhash + ":" + round), then run the draw.
5. AfterPublish server_seed so anyone can check its hash against the commit and recompute the order.

// Weighted draw without replacement
pool  = snapshot.sortBy(address)   // lowercase 0x…, ASCII order
total = sum(pool.tickets)
k     = pool.length >= 500 ? 12 : 8   // cats on the grid
for i in 0..min(k, pool.length)-1:
  h = SHA256(seed + ":" + i)
  x = parseInt(h[0..13], 16) % total   // first 52 bits
  w = first wallet whose running ticket sum > x
  order.push(w); pool.remove(w); total -= w.tickets
// order[0] = P1, order[1] = P2, …
// Lanes are shuffled from the same seed.