Degen Protocol
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Session against the house

Blackjack

ended Play money · 61ebb1374b7835d0039bc5edf6b25127

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,310 play
Returned
2,100 play
Bettor's net
-210 play
Return
90.91%

Results by hand

Final
Hands
200
played
Pace
20.4/min
overall 19.4/min
Biggest swing
+20
Seat 1 · hand 6

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

SeatNetRateStreak
gbb-210-105.0 play/100lost 3

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
15010Q♦A♦ 21J♣7♥ 1700× the bet
149102♦5♣Q♦ 178♦9♦ 178♦4♣J♠ 22 bust101× the bet
14810A♣2♠2♣6♦ 219♦9♦ 1800× the bet
1471010♦4♥ 145♦10♠ 15 surrendered50.5× the bet
14610K♥10♥ 203♠2♥K♣6♦ 21202× the bet
145104♠Q♦4♣ 187♦3♣J♣ 20 doubled404× the bet
14410A♠Q♥ 212♥7♣ 900× the bet
14310Q♣9♠ 19Q♠9♠ 19101× the bet
142104♣7♦4♥K♦ 257♥K♠ 17202× the bet
14110J♦A♥ 215♠5♦ 1000× the bet
140108♥8♦K♦ 2610♥9♠ 19202× the bet
139102♦7♣5♠4♥ 188♠5♣ 1300× the bet
13810J♠6♦ 16J♣5♣ 15 surrendered50.5× the bet
137108♦2♥J♠ 202♥K♦2♣7♦ 21202× the bet
136105♦8♣10♠ 23Q♥10♦ 20202× the bet
135108♠9♦ 174♠Q♦4♣ 18202× the bet
134103♦9♠5♠ 173♣A♣10♠ 1400× the bet
13310A♦J♠ 213♣5♥ 800× the bet
132109♦10♦ 19A♠Q♠ 21A♦4♦ 15202× the bet
131102♠A♥ 133♣9♥Q♥ 22 bust00× the bet
13010J♦K♦ 204♣Q♦K♥ 24 bust00× the bet
129102♥7♦3♦4♥K♠ 265♣K♥ 15202× the bet
128105♠Q♥9♠ 2410♣3♠ 13202× the bet
127108♣6♠ 145♥7♥A♥Q♥ 23 bust00× the bet
126102♣3♠3♦Q♥ 18Q♦6♦ 1600× the bet
125106♦A♦ 175♦4♥4♦ 13 doubled00× the bet
124107♠2♠ 9Q♦4♠K♦ 24 bust00× the bet
123104♠2♠K♥10♥ 267♠6♣ 13202× the bet
122107♥6♦Q♦ 233♠K♦3♥3♦ 19202× the bet
121104♥K♠2♣A♣ 172♠7♠A♠ 20 doubled404× the bet
120102♦8♦7♠ 177♥8♥ 1500× the bet
11910K♥K♥ 202♦2♣10♦K♥ 24 bust00× the bet
1181010♣3♥4♦ 17Q♥4♦A♥5♦ 20202× the bet
117103♦A♥6♣ 208♣5♦ 138♦9♦ 1700× the bet
11610K♥10♣ 202♠K♠Q♣ 22 bust00× the bet
11510J♣6♦ 16Q♠5♥ 15 surrendered50.5× the bet
114104♥9♠3♥9♦ 25J♠2♣ 12202× the bet
113103♦10♣8♠ 215♦A♦2♥ 1800× the bet
11210J♦2♥ 122♦Q♣A♥A♥10♠ 24 bust00× the bet
111106♥A♣ 17K♠K♣ 20202× the bet
11010A♥5♦5♦ 21K♠8♣ 1800× the bet
109109♥Q♥ 199♣6♠7♣ 22 bust00× the bet
1081010♦4♠7♥ 21Q♥4♥6♥ 2000× the bet
107108♣J♦ 18K♣7♣ 1700× the bet
106107♥9♣ 167♣6♠A♣A♣J♠ 25 bust00× the bet
105102♠9♥A♣2♥4♥ 18J♥5♣ 1500× the bet
10410K♥9♦ 199♣10♦ 19101× the bet
10310J♠4♥ 14A♦4♥10♣9♦ 24 bust00× the bet
102105♠8♣6♠ 19A♦8♥ 19101× the bet
101105♣J♣5♦ 20Q♣7♠ 1700× 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
f562c63a20c5a3aa9f230aa7852615dabda90a0690ee5373d6faff1a34f7f82d
Seed
86e9b37595ef130a9bac4603259bd5e820241b7d922a59e142acfe506a4ab420 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
d6bba9eafacb536ab882726a1f29c265
Commitment
Batch 66,981, Merkle root 065fe51ee24b725251c15a50d8e06b801d009a617706dc040441a0e1ab946523. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 784975e9b7ced0e8a1ab2b43e13fb78b72d2ac65c865a94408a8ccea4dd648d8
  2. de50da1b28870aaf2cd4a4beab51a4621d72d20d1796c7f626efe1c0b8e253c3
  3. bbdb7f1558aba2408d7ede0f45ae5b418053640e7f7834397546a10ceab3d4ba
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.