Degen Protocol
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Session against the house

Blackjack

ended Play money · e4794eb5af9b5c3b4c22b3c5f29f77b1

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,240 play
Returned
2,050 play
Bettor's net
-190 play
Return
91.52%

Results by hand

Final
Hands
200
played
Pace
21.8/min
overall 20.2/min
Biggest swing
-20
Seat 1 · hand 13

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

SeatNetRateStreak
gbb-190-95.0 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
15010Q♠2♦ 12K♦4♥10♥ 24 bust00× the bet
149108♦Q♠ 18Q♥5♥9♠ 24 bust00× the bet
14810J♥K♠ 20Q♠2♣7♦ 1900× the bet
147107♦2♣10♥ 198♥5♦4♠ 178♠4♥Q♥ 22 bust00× the bet
14610Q♥2♠ 125♥8♥Q♦ 23 bust00× the bet
14510A♥8♦ 19Q♠2♠2♦9♥ 23 bust00× the bet
14410Q♦5♣ 15J♥5♥ 15 surrendered50.5× the bet
143104♥6♥J♠ 206♦5♠2♣ 13 doubled00× the bet
14210J♣10♥ 2010♣3♥4♠ 1700× the bet
141104♠7♠8♦ 196♠4♠10♣ 20 doubled404× the bet
14010Q♥10♦ 203♦3♣5♣8♠ 1900× the bet
139102♦A♣8♥ 21Q♦9♠ 1900× the bet
138108♠8♠10♣ 267♥9♠5♠ 21202× the bet
137105♠6♥4♣2♣ 175♠3♠5♠ 1300× the bet
136103♠K♣7♥ 209♣3♦A♥ 1300× the bet
135106♣K♦3♠ 194♣9♠ 134♦2♥2♠Q♠ 1800× the bet
134109♣A♣ 2010♠9♦ 1900× the bet
13310J♠10♦ 206♥A♥A♠3♥ 21202× the bet
132107♦A♣ 183♣Q♥6♦ 19202× the bet
131102♥3♥Q♠10♦ 257♠10♥ 17202× the bet
130104♥J♥K♦ 24A♣7♦2♥ 20 doubled404× the bet
129109♠3♣6♥ 18Q♠K♥ 20202× the bet
12810J♠4♦ 142♥A♠5♥5♥K♠ 23 bust00× the bet
1271010♣8♥ 187♣10♥ 1700× the bet
126104♠10♦Q♠ 24J♣K♠ 20202× the bet
125102♣Q♦2♥K♦ 24K♣10♦ 20202× the bet
1241010♦K♥ 204♥3♠K♣ 1700× the bet
123107♣6♣Q♠ 238♥5♦8♥ 21202× the bet
122107♥8♣4♥ 198♣10♥ 1800× the bet
121103♥7♣A♥ 2110♦7♣ 1700× the bet
12010J♦2♦ 12K♥6♣ 16 surrendered50.5× the bet
11910A♣2♠ 134♦5♣5♥8♣ 22 bust00× the bet
11810Q♠10♥ 20A♠Q♥ 21 blackjack252.5945× the bet
1171010♥7♦ 178♣10♠ 18202× the bet
116102♦A♣J♦Q♣ 238♠6♥ 14202× the bet
115105♣A♥Q♠Q♣ 263♣K♥ 13202× the bet
11410J♠7♣ 172♥5♦A♠8♣9♠ 25 bust00× the bet
1131010♣6♥3♠ 19J♠9♣ 19101× the bet
112108♠2♣ 108♥5♦Q♦ 23 bust00× the bet
11110K♠4♠2♠6♠ 224♣6♦9♣ 19202× the bet
11010K♦5♠K♥ 25Q♠2♣8♥ 20202× the bet
10910K♣10♠ 20J♣3♣6♠ 1900× the bet
108105♥9♠8♦ 227♦8♦ 15202× the bet
10710A♠8♣ 19Q♦J♠ 20202× the bet
106104♠6♥7♣ 177♥6♣ 137♥10♣ 177♥A♣3♣ 21 doubled505× the bet
105108♦8♣J♦ 263♠5♣5♥5♥ 18202× the bet
104104♠9♥3♠4♥ 202♣K♣ 1200× the bet
103108♣10♦ 185♠3♦9♠ 1700× the bet
1021010♠A♣ 21A♣10♦ 21 blackjack101× the bet
10110Q♦2♣ 126♦9♥ 15 surrendered50.5× 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
e7d8385f9175bd07d656436f4093adeaadacfc718870150557618c12323e0475
Seed
525dd20ad5d428ffb252384fa8b77759988db148d16ece27359e4e2e27c972cf SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
adb9a4a31957d9a511daa270f35e9047
Commitment
Batch 68,702, Merkle root 2700cc3c857db5c8a3646044b8fb3a3615464304e1414c3453ad0aa652e87c89. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 1886b82a9c820d1ab9b1753440b91450c7abacfb905d9baefb8fcbf591d4f9b5
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.