Degen Protocol
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Session against the house

Blackjack

ended Play money · 46e8a3015a9f7a3b23d217e73c1040ac

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,270 play
Returned
2,170 play
Bettor's net
-100 play
Return
95.59%

Results by hand

Final
Hands
200
played
Pace
18.0/min
overall 19.4/min
Biggest swing
+40
Seat 1 · hand 102

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

SeatNetRateStreak
gbb-100-50.0 play/100lost 3

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010K♥4♠2♥A♠ 17K♥9♠ 19202× the bet
49105♦Q♣6♦ 21K♥5♠ 1500× the bet
48106♥5♠6♣ 176♠7♣ 1300× the bet
4710Q♣6♦K♥ 263♣8♠Q♠ 21 doubled404× the bet
46105♠J♠4♥ 199♥J♥ 19101× the bet
4510J♥4♠6♦ 209♣A♠ 20101× the bet
44103♣3♣K♣A♠ 173♣2♠K♣ 1500× the bet
43105♣Q♥Q♣ 25J♣K♣ 20202× the bet
42107♥Q♠ 174♣A♣10♦Q♣ 25 bust00× the bet
411010♥3♥8♦ 21Q♦Q♠ 2000× the bet
40103♣6♣A♣ 2010♠J♥ 20101× the bet
39102♣2♥5♠9♥ 189♥2♣6♦ 17 doubled00× the bet
38109♠Q♣ 195♥J♥2♠ 1700× the bet
37108♣7♥J♦ 25J♣K♦ 20202× the bet
36103♣5♠10♥ 18A♠9♦ 20202× the bet
35108♣2♣ 102♥10♣A♣J♥ 23 bust00× the bet
34109♣8♥ 176♣J♦ 16 surrendered50.5× the bet
33109♦7♦4♦ 20K♦K♠ 20101× the bet
32109♠A♥ 204♥K♣Q♥ 24 bust00× the bet
3110J♦8♥ 188♥9♣ 1700× the bet
3010Q♦2♥7♠ 192♣K♦3♠6♠ 21202× the bet
29109♠9♦ 18A♥Q♣ 21 blackjack252.5945× the bet
28105♦J♠7♠ 227♦J♦ 17202× the bet
27108♠10♣ 18J♣A♦ 21 blackjack252.5945× the bet
26107♦3♠ 105♥A♠7♦Q♠ 23 bust00× the bet
25106♣9♦Q♠ 253♥8♣8♥ 19 doubled404× the bet
24102♣4♣3♠2♠K♦ 217♠2♦A♥ 2000× the bet
23107♠9♦ 167♦9♦9♥ 25 bust00× the bet
22107♣2♦5♠K♣ 248♦10♦ 18202× the bet
21106♣7♣7♥ 2010♥4♦ 1400× the bet
20104♦Q♥A♦3♥ 183♠2♠A♠6♥ 1200× the bet
1910K♠3♣6♥ 196♥6♣3♦5♥ 20202× the bet
18105♣9♠9♦ 236♠K♦ 16202× the bet
17102♠A♥A♠7♦ 217♣9♣ 167♥4♠5♣ 16 doubled00× the bet
1610J♦K♥ 204♦K♥7♣ 21202× the bet
15103♥Q♦K♣ 23J♣J♥ 20202× the bet
14103♠8♣ 1110♣A♠ 21 blackjack252.5945× the bet
1310Q♦9♥ 19J♠Q♠ 20202× the bet
121010♦7♣ 178♠Q♥ 18202× the bet
111010♦6♦8♥ 244♦8♥3♦4♠ 19202× the bet
1010K♠6♠5♠ 219♣10♣ 1900× the bet
9109♣2♣ 11A♦K♠ 21 blackjack252.5945× the bet
8104♠8♣3♦6♦ 21K♣5♠ 1500× the bet
7103♥K♥ 138♥4♣K♠ 22 bust00× the bet
610Q♦J♦ 205♠10♦ 15 surrendered50.5× the bet
5104♣3♠J♥ 177♣3♠5♦ 15 doubled00× the bet
4104♣3♠7♠6♥ 2010♣9♣ 1900× the bet
3105♣4♣4♣6♦ 19Q♣J♦ 20202× the bet
2102♣5♥5♥Q♥ 223♠5♦J♥ 183♥A♦7♠ 21404× the bet
1104♣4♦K♠ 18A♠8♠ 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
f23b33c0d416f8f57ca1f3c053a52684756b6c7fc94e4317f1b77f0f58089b62
Seed
49302af484da91378412f821188c8067e11baa0fded191293a82beae01b4861d SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
af29d15a20fe9f71b8765bca996d338a
Commitment
Batch 65,394, Merkle root b230a1ab8b456451be1d0e21774f4d294723106809b0e8f53cc1bb5fb620b635. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. c1b33af511785d593f2515e50230f684ed1c4f636324b009bd15a276311172de
  2. dba3f6ebea2c5330e5589e74fb859446c355ed16520d5adcab948c040108d1c3
  3. ef9336c3498200b244aefaa2e417a108261505219e0246c52574bf2ca4b9eea7
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.