Degen Protocol
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Session against the house

Blackjack

ended Play money · 70902890605486a73ae46df0647ff010

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,230 play
Returned
2,110 play
Bettor's net
-120 play
Return
94.62%

Results by hand

Final
Hands
200
played
Pace
18.5/min
overall 19.4/min
Biggest swing
+30
Seat 1 · hand 161

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

SeatNetRateStreak
gbb-120-60.0 play/100lost 1

Last hands

  1. 200Even0
  2. 199Seat 1+10
  3. 198Even0
  4. 197Seat 1+10
  5. 196Even0
  6. 195Even0
  7. 194Even0
  8. 193Seat 1+20
  9. 192Seat 1+10
  10. 191Even0
  11. 190Even0
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
15010J♥7♣ 1710♣3♥2♠8♦ 23 bust00× the bet
149104♣A♠3♠ 18A♠3♦9♣ 1300× the bet
14810J♣2♠2♣5♦ 19J♠7♠ 1700× the bet
14710J♣3♥5♣ 188♣K♣ 18101× the bet
1461010♠2♦8♠ 202♦10♠8♦ 20101× the bet
1451010♣10♠ 2010♥Q♠ 20101× the bet
14410A♦10♦ 216♣K♠ 1600× the bet
14310A♣9♦ 20Q♦A♥ 21 blackjack252.5945× the bet
142108♣A♠ 192♥A♦10♠J♦ 23 bust00× the bet
141104♣5♠6♥J♠ 254♣9♥ 13202× the bet
140103♥3♣3♥J♣ 19A♦2♦6♣ 19101× the bet
139103♠8♥Q♦ 214♦A♥10♣ 1500× the bet
13810J♠2♠10♣ 222♦3♦5♠J♦ 20202× the bet
13710J♥9♣ 193♣J♥A♣J♦ 24 bust00× the bet
136102♦3♥5♦7♦ 179♥4♥ 1300× the bet
135109♥7♣6♣ 222♥6♦A♣ 19202× the bet
13410K♥5♥8♥ 23Q♥3♦6♠ 19202× the bet
133108♦4♥10♠ 229♥Q♣ 19202× the bet
13210Q♦A♦ 212♠3♦ 500× the bet
131106♦10♠7♣ 233♥4♣8♠ 15202× the bet
130103♥K♥7♣ 206♣K♠ 1600× the bet
129104♣A♥5♦ 205♦A♥7♥ 13 doubled00× the bet
12810K♠9♥ 1910♦6♥ 16 surrendered50.5× the bet
12710K♣2♦J♣ 222♠8♥J♥ 20202× the bet
12610A♥J♦ 216♦K♥ 1600× the bet
12510J♣8♦ 18A♥4♠K♠10♠ 25 bust00× the bet
124107♥10♠ 17A♦A♠ 12A♣A♠ 1200× the bet
12310K♦5♣ 15K♥5♦ 15 surrendered50.5× the bet
12210K♥3♥10♥ 2310♦J♥ 20202× the bet
12110J♣3♣10♥ 2310♦7♣ 17202× the bet
1201010♦6♣ 164♠A♥7♥4♦9♥ 25 bust00× the bet
119105♦8♠7♦ 207♣9♣ 167♦9♦ 1600× the bet
118108♠7♣ 158♥7♣Q♦ 25 bust00× the bet
117107♣K♣ 175♦7♠9♣ 21202× the bet
116106♣7♠5♣ 182♥10♦ 1200× the bet
115108♦7♠J♠ 256♥2♥2♣K♥ 20202× the bet
114105♠4♣J♠ 194♦5♦2♥ 11 doubled00× the bet
113106♥3♠J♥ 199♦10♥ 19101× the bet
112106♣K♥4♣ 203♣8♦7♠ 18 doubled00× the bet
11110K♠10♠ 20K♠J♣ 20101× the bet
110103♦7♥J♦ 20Q♠K♦ 20101× the bet
10910Q♠J♠ 207♣8♦ 15 surrendered50.5× the bet
10810A♦4♣4♦ 197♦10♠ 1700× the bet
107102♣J♥9♥ 2110♣9♠ 1900× the bet
1061010♦8♦ 183♠K♠4♥ 1700× the bet
105106♦4♥10♣ 20K♠7♣ 1700× the bet
104105♦4♣9♦ 18J♥4♣ 1400× the bet
103105♠8♥ 13K♠A♣ 21 blackjack252.5945× the bet
10210K♥5♥9♠ 2410♠7♠ 17202× the bet
10110A♥7♠ 182♣A♠J♥6♦ 19202× 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
1121539f0437881f011e9c238174ca05e131885ba1cc0f981da404bd5465ea53
Seed
17fad1e9e5d2ee677d0793e7b493052c7f3d3c9d817147ba57ddb9b8916f67f8 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
93f31ec2578cae45baefce3aa868af07
Commitment
Batch 66,322, Merkle root ad00f91f89c270a4e26da40bc0d1d7de34bf6793d4f5a62eef9478e3b34b58c9. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. c9b4d7769157292df4b4dde26ca1b6acaaea824a63c75354fad94fc9848a1406
  2. 11fd2432e4c03d2a16aeeff5dbe2fd960e1cbf786c2fc9c7ebf70b7b60b4c2a2
  3. e9351199070a67178af0df83ed3b06530a05ef9070465a34ca4f8d27f67899f7
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.