Degen Protocol
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Session against the house

Blackjack

ended Play money · 7c77a4cd645188fae935f5609ef58b18

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,240 play
Returned
2,335 play
Bettor's net
+95 play
Return
104.24%

Results by hand

Final
Hands
200
played
Pace
19.1/min
overall 20.6/min
Biggest swing
+40
Seat 1 · hand 60

Each seat's running result in play, hand by hand; the dashed line marks the biggest swing.

SeatNetRateStreak
gbb+95+47.5 play/100lost 1

Last hands

  1. 200Even0
  2. 199Seat 1+10
  3. 198Even0
  4. 197Even0
  5. 196Even0
  6. 195Even0
  7. 194Seat 1+10
  8. 193Even0
  9. 192Seat 1+10
  10. 191Even0
  11. 190Even0
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
100108♣3♥ 114♦2♦3♠3♥10♦ 22 bust00× the bet
99103♠3♦Q♦8♦ 249♣2♣Q♦ 21 doubled404× the bet
9810J♥9♦ 196♥6♦J♣ 22 bust00× the bet
9710Q♠3♣Q♦ 23K♣9♥ 19202× the bet
96104♦7♣8♣ 19K♣9♦ 19101× the bet
95106♠4♦A♦ 213♠Q♦ 1300× the bet
94103♦A♦ 14A♦Q♦ 21 blackjack252.5945× the bet
93103♣6♣ 9J♣A♥ 21 blackjack252.5945× the bet
9210A♦10♣ 2110♥8♦ 1800× the bet
91108♦5♥K♣ 23J♣9♣ 19202× the bet
90102♠K♦4♥J♦ 26K♠8♣ 18202× the bet
8910Q♣3♥6♠ 194♦2♠Q♦4♠ 20202× the bet
881010♠3♠J♦ 23K♥8♠ 18202× the bet
87105♦J♦ 15Q♦A♥ 21 blackjack252.5945× the bet
8610Q♥9♦ 194♠3♠7♣K♣ 24 bust00× the bet
85105♣K♣Q♠ 25K♥4♠ 14202× the bet
84105♠7♥Q♦ 224♠5♣5♥ 14 doubled404× the bet
83105♦9♠7♦ 217♣K♥ 1700× the bet
8210A♥Q♣ 212♥5♠ 700× the bet
81102♦J♠10♦ 226♣2♦6♦ 14202× the bet
80107♠8♣ 158♥6♦9♣ 23 bust00× the bet
79102♦7♦9♥ 188♥7♠ 158♦4♠J♣ 22 bust00× the bet
7810Q♦9♠ 196♠K♥ 16 surrendered50.5× the bet
77108♦2♣6♠8♦ 2410♦J♦ 20202× the bet
7610A♦Q♣ 2110♥4♥ 1400× the bet
7510K♦8♥ 18A♠4♣9♦6♦ 20202× the bet
74104♣4♦9♥ 179♠A♠ 20202× the bet
73107♦2♥K♥ 195♣5♥J♥ 20 doubled404× the bet
72107♥10♣ 17A♥Q♠ 21 blackjack252.5945× the bet
71106♠6♣3♦J♦ 257♣3♣J♠ 20 doubled404× the bet
70106♥6♦10♣ 22Q♥4♠ 14202× the bet
6910Q♣J♥ 204♦K♠8♠ 22 bust00× the bet
68107♣8♦2♥ 1710♣7♣ 17101× the bet
67108♥Q♠ 184♦A♠8♥4♠ 1700× the bet
6610A♠8♥ 19J♠8♦ 1800× the bet
65105♠7♥5♠ 17K♥K♣ 20202× the bet
6410A♥8♣ 1910♠7♣ 1700× the bet
63102♣10♦J♠ 227♣2♥J♣ 19202× the bet
6210K♦K♠ 205♠3♦10♥ 1800× the bet
61106♠A♥ 176♠K♠ 1600× the bet
60104♦9♠9♣ 222♦7♠K♥ 19 doubled2♦9♦Q♣ 21 doubled808× the bet
59106♦8♠ 1410♣A♣ 21 blackjack252.5945× the bet
5810J♦7♣ 177♦K♠ 17101× the bet
571010♥Q♦ 207♠4♣A♠ 12 doubled00× the bet
56107♣A♠ 183♦7♥2♣ 12 doubled00× the bet
55103♣Q♥10♣ 232♣9♦A♦ 12 doubled404× the bet
5410A♦4♣ 1510♥A♠ 21 blackjack252.5945× the bet
53108♦Q♠ 18Q♠6♥4♦ 20202× the bet
52109♠5♣ 14K♠3♦A♥10♦ 24 bust00× the bet
5110K♦K♣ 2010♠K♦ 20101× the bet

Provably fair

Verify fairness

The session's seed decides every card. Its hash was committed before the first hand; the seed is revealed when the session ends. Each round's cards come from HMAC-SHA256 keyed by the seed over the round's number and the bettor's own seed.

Seed hash
c3aaf98b3040d768e81a015b317935185ccffdf7a6a23be4dfbe59cffce152e6
Seed
e4a1437c90930aabb54717bfe8a2f858686adab258f569d9cda1118253ed799c SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
d8fc8e7919a47215d6c7bc6d9016c554
Commitment
Batch 68,989, Merkle root 9adae83d4c57846a9bc4fb99bb292f9c4cef6f0b5f8ad7d5d50b4c6f8177fa32. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 9ffbac197ac9c65d3b8d1110d1149b6eb7b06bce13ef8b82f53ff8b619be68cd
  2. 9e6f84434854d23a97a1853b708f414081fa834a547c4b4321e13e5fe6814f3b
  3. 48e962dab9d293ca8b9c99f7e06a761a17a9c39143b96123c12a96e017cc198d
Checked: the seed hash proves into the root.

To check it yourself, take the session's proof:

  1. Hash the seed as above and compare it with the seed hash; prove the seed hash into the root with the Merkle path (keccak256, as for every match).
  2. For each round: round seed = HMAC-SHA256(key = seed, "degen.house.round.v1" ‖ 0x00 ‖ u64be(length of the bettor's seed) ‖ bettor's seed ‖ u64be(round)).
  3. Key ChaCha20 (RFC 8439, zero nonce) with the round seed and read little-endian 64-bit words; a card is the next word below 264 − 1 − ((264 − 1) mod 52), modulo 52.
  4. Replay the round's actions with the game's rules: the cards and the payout must match.

The replay plays every hand rebuilt this way on the server from the same data, and marks any that does not rebuild as recorded.