Degen Protocol
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Session against the house

Blackjack

ended Play money · bb8acb6747597f28e317b3f80ae7e2d7

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,320 play
Returned
2,555 play
Bettor's net
+235 play
Return
110.13%

Results by hand

Final
Hands
200
played
Pace
21.1/min
overall 20.7/min
Biggest swing
+40
Seat 1 · hand 53

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

SeatNetRateStreak
gbb+235+117.5 play/100lost 3

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
150105♣7♥K♦ 22Q♠10♣ 20202× the bet
149109♦4♣ 13A♣J♠ 21 blackjack252.5945× the bet
148104♦6♣Q♣ 205♥7♠ 1200× the bet
147104♣3♦2♦10♦ 198♦6♠ 1400× the bet
146109♣6♦K♦ 25Q♣K♦ 20202× the bet
145106♥4♥2♣Q♠ 22Q♠J♠ 20202× the bet
14410J♥5♣9♥ 24K♦7♠ 17202× the bet
1431010♣8♥ 182♠6♠6♣2♦A♣ 1700× the bet
142103♣J♣5♥ 186♣5♥8♥ 19 doubled6♠A♣4♠ 21 doubled808× the bet
141108♥6♦7♣ 213♥Q♥2♠5♥ 2000× the bet
1401010♣3♦5♦ 188♥2♠K♣ 20202× the bet
13910J♥5♦ 157♥3♥4♠K♠ 24 bust00× the bet
13810Q♠6♦ 1610♥4♥10♥ 24 bust00× the bet
137106♠A♣ 177♦Q♦ 17101× the bet
13610Q♠Q♠ 20J♦A♣ 21 blackjack252.5945× the bet
135105♣K♠2♠ 173♦8♦K♣ 21 doubled404× the bet
134104♠A♣5♠ 204♦5♥Q♣ 19 doubled00× the bet
133103♣Q♣A♠7♦ 214♣2♥9♠ 1500× the bet
132105♥10♠7♦ 225♦K♣ 15202× the bet
131105♦8♦3♠5♣ 212♠Q♣ 1200× the bet
130107♣3♦4♣3♣ 17A♠9♥ 20A♦5♣ 16202× the bet
12910Q♥8♣ 18K♣4♠J♦ 24 bust00× the bet
128105♠3♠4♣5♠ 178♦10♠ 18202× the bet
127104♠J♦ 14A♦J♥ 21 blackjack252.5945× the bet
126105♠5♦4♦5♦ 19K♠Q♣ 20202× the bet
125104♦3♣Q♥ 179♥6♦ 1500× the bet
124103♣8♣8♠ 1910♦J♥ 20202× the bet
12310A♦K♠ 215♣A♣ 1600× the bet
122107♣7♥ 148♦7♣J♦ 25 bust00× the bet
12110A♣Q♦ 212♣5♣ 700× the bet
120102♥6♣A♦ 1910♦8♦ 1800× the bet
119106♦A♣ 173♥8♦10♣ 21 doubled404× the bet
11810A♣8♥ 197♠10♣ 1700× the bet
117109♦A♠ 207♠Q♣ 1700× the bet
11610K♣5♥2♦ 177♠J♥ 17101× the bet
11510K♣4♥ 147♥2♥7♦K♦ 26 bust00× the bet
114107♣7♣5♥ 198♥K♥ 1800× the bet
113109♥9♥ 185♦A♠6♠2♥Q♠ 24 bust00× the bet
112107♥4♦ 114♦Q♠9♥ 23 bust00× the bet
11110A♥5♥ 165♦J♥J♠ 25 bust00× the bet
11010K♥3♦Q♦ 235♣7♥5♣ 17202× the bet
109103♦10♠A♣7♦ 2110♣8♥ 1800× the bet
108109♠9♦ 18Q♥3♠5♠ 18101× the bet
107108♥J♦ 187♠K♥ 1700× the bet
106103♠2♣4♣5♥J♣ 2410♠K♦ 20202× the bet
105102♦Q♦ 122♣K♣K♦ 22 bust00× the bet
104109♠A♦ 204♦A♠10♣K♣ 25 bust00× the bet
10310A♣J♦ 21A♥8♣ 1900× the bet
102104♠9♠A♣4♣ 18Q♠9♥ 19202× the bet
101106♠4♣6♦6♥ 22A♦6♦2♠ 19 doubled404× 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
d5083d7e30107c5ac2c11bb8226433300ff5364dddf6b146623f6204a16339a9
Seed
c95c5fec49c0fa82e4e19df5bf0f0d248c8eb751f9ca6d394be9a64963b6e886 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
bcd02f17fa72e795e230b11ee6ae5870
Commitment
Batch 68,686, Merkle root b93d8aa129dd7ce2fb50ef9490f4e984fd9d145736f9c16a64f8a94ddb8e3283. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 83d22e362219f27f7b4f03b467fdb6f56226e8433034d4cd998b6a7dc479b610
  2. 2c77b57b100e125c88274ce49a208c8b7a73075ce1a7bffae84f8772c55f734b
  3. c2cbad6e8b8b19e3e11264fbe48db2be94cf7f7ec81e40014890b87dd5f649c2
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.