Betting odds on who the hotly-awaited HBO documentary identifies as Bitcoin (CRYPTO: BTC) creator Satoshi Nakamoto witnessed a dramatic shift Monday. What happened: Late computer scientist Len Sassaman, who was punters’ favorite a day earlier, saw his odds tumble from nearly 40% to 14.5% as of this writing on cryptocurrency-based prediction market Polymarket. Bets on Blockstream CEO Adam Back increased marginally to 12%, but Nick Szabo, who was barely in the running a day ago, climbed to prominence with over 11% odds. In fact, earlier in the day, odds for Szabo overtook those for Sassaman. Sza…