The bet outcome is calculated by hashing today's secret with your Transaction ID.
You can check on your own by using the code and a past secret published here.

import hashlib
def xor_func(s1,s2):
   return ''.join(chr(ord(a) ^ ord(b)) for a,b in zip(s1,s2))
def verify(txid,secret,lessthan):
   sha512 = hashlib.sha512()
   sha512.update(xor_func(secret,txid))
   b = long(sha512.hexdigest(),16)
   result = b % 65537
   if result<lessthan:
      print "win!"
   else:
      print "lose!"
			

Past Secrets

current time: Mon, 26 Jun 2017 12:04:05 +0000

Date Secret
June 25 2017 c2bb969e49f3461382a51ccdcd23e4a4e9b019d2d50a62a3d91af85eafb7cd29
June 24 2017 7820a45639ae1fe40aff82fe3c8bff0ed430bed887478401e88f5e0fb4334f63
June 23 2017 8c02d5db468c414aeed82241d7666cc039247fd51587bc3e09557918434ee0c8
June 22 2017 e0530116731f3455c27b0f4010e19d51a7f0a3f850a696e0abb9dd3b35f0053f
June 21 2017 55a2dafb9df303080eb2c21ed10987179d0ba8d2963983802ede56804e8eaae8
June 20 2017 03add889b651a3738dac0a2c57f9a3def87bb3b1191e6a030d29205499fd233f
June 19 2017 656de3f18fda66557bedfa1f3e63bb382242b340c168de4382eda8e0ce79192e
June 18 2017 8e8b9148e6cfcb0a6beff690b0fd64d3641f1566dd93dd3db13fac470a4342ec
June 17 2017 1419168daf79fe6d80ce519b743d974f59813871d66a071e700f2469c8259a87
June 16 2017 8137dc8c9227eaa64624f52f5de2f72aaeeec1a1c47c4bd7d4669a282614edd5
June 15 2017 214894c85dac80ed6e33e9a68054bc8594b2307fb5e4e52e9a3d3f5d7e84386d
June 14 2017 632c4d742bf74f93ba941aad8c5f475395d4343dac0c39b240810bd010f4d664
June 13 2017 6c172e63d94678ecfed055d37bb9dbd47bd47572fd7c51ebe14d462cf0cd251d
June 12 2017 29cfc480ec62923dc7f58859fd4ff3ab4c4a261d8606bfd17d3ad4bfd7f75ed1