Degen Protocol
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Session against the house

Blackjack

ended Play money · 13a0e1f1214fb2d240d5cdc8a08667ab

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,260 play
Returned
2,380 play
Bettor's net
+120 play
Return
105.31%

Results by hand

Final
Hands
200
played
Pace
19.2/min
overall 19.9/min
Biggest swing
+30
Seat 1 · hand 97

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

SeatNetRateStreak
gbb+120+60.0 play/100won 3

Last hands

  1. 200Seat 1+15
  2. 199Seat 1+10
  3. 198Seat 1+15
  4. 197Even0
  5. 196Seat 1+20
  6. 195Even0
  7. 194Even0
  8. 193Even0
  9. 192Even0
  10. 191Seat 1+10
  11. 190Even0
  12. 189Seat 1+10

The hands

Newest first
#BetDealerHandsPaidChecked
100104♥6♠K♥ 2010♥J♦ 20101× the bet
9910J♠8♠ 18J♠8♦ 18101× the bet
98109♣6♥J♠ 25Q♥Q♥ 20202× the bet
97105♣8♠9♣ 223♦Q♦ 133♠A♣Q♣ 14 doubled606× the bet
9610Q♠6♦ 167♣8♦ 15 surrendered50.5× the bet
951010♠3♥2♦4♣ 19K♦8♥ 1800× the bet
941010♠Q♣ 206♣A♣K♥ 1700× the bet
9310J♥4♥7♠ 21K♦K♠ 2000× the bet
92107♥A♦ 187♠2♠6♣2♥ 1700× the bet
9110A♦A♣J♦6♣ 186♥6♥5♥ 1700× the bet
90104♣2♥Q♥Q♣ 268♠Q♣ 18202× the bet
89105♥10♠4♦ 199♠K♥ 19101× the bet
88104♦6♣K♦ 2010♣K♠ 20101× the bet
8710A♦9♣ 20A♠9♣ 20101× the bet
86106♣9♦6♣ 21Q♠5♠ 1500× the bet
8510J♣8♠ 1810♦8♠ 18101× the bet
84105♦A♣7♥2♥Q♥ 259♠K♣ 19202× the bet
8310K♦J♣ 208♠A♦ 1900× the bet
82108♠5♠7♣ 20K♦K♥ 20101× the bet
8110Q♠3♦9♣ 22J♦8♦ 18202× the bet
8010Q♦3♣9♥ 228♥K♦ 18202× the bet
79102♣7♠A♥ 208♥A♣ 1900× the bet
78105♦9♠8♥ 226♣A♠6♣ 13 doubled404× the bet
77105♦6♣ 11A♣Q♠ 21 blackjack252.5945× the bet
7610Q♣3♠ 135♦K♣ 15 surrendered50.5× the bet
7510A♠K♦ 212♥Q♣ 1200× the bet
74108♠2♦4♠9♣ 23K♠8♦ 18202× the bet
73107♥3♣ 102♦10♦10♦ 22 bust00× the bet
721010♥10♦ 208♦3♥K♥ 21 doubled8♠4♠6♦ 18404× the bet
71109♦8♥ 176♣10♣ 16 surrendered50.5× the bet
70107♣2♠ 96♣2♥7♥Q♠ 25 bust00× the bet
69103♥9♣10♦ 22K♣5♥ 15202× the bet
6810J♦7♠ 179♦9♦ 18202× the bet
6710K♠A♠ 214♣9♥ 1300× the bet
6610K♦5♠ 154♠5♣4♣J♥ 23 bust00× the bet
65105♠8♣2♥2♦ 174♥9♥ 1300× the bet
64102♦J♥5♣ 178♥10♣ 18202× the bet
6310J♦Q♣ 205♠7♦5♠ 1700× the bet
62102♦2♥9♦2♦4♠ 19Q♦6♥ 1600× the bet
6110A♣4♣ 15A♥J♦ 21 blackjack252.5945× the bet
60105♠5♥10♣ 20J♠10♦ 20101× the bet
59107♦10♥ 17Q♦10♠ 20202× the bet
58109♠4♣ 134♥2♠Q♣J♦ 26 bust00× the bet
57104♣A♥K♣7♥ 227♣4♠A♥ 12 doubled404× the bet
56105♦2♦A♦ 188♦5♣ 1300× the bet
55107♠9♥2♦ 184♦A♦2♥J♠ 1700× the bet
541010♣5♠5♠ 20A♦2♠9♥3♠3♥ 1800× the bet
5310K♥5♣ 15Q♦A♥ 21 blackjack252.5945× the bet
5210A♥6♥ 1710♠5♥Q♦ 25 bust00× the bet
51105♣7♥5♦ 17Q♥9♥ 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
dffbabbf32f2625c610b87e6ea224ae4b7d9bcfe586a38100e03a14a76b64580
Seed
a053bba149a6fee07c9ea3a948935687a009e574d0fc59164b51bab1d7ab4f15 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
6385468f792c6655be17ff97942ccb08
Commitment
Batch 70,051, Merkle root 61ca835d0db2467aea2d1a86b59670a8ff1012cebcd469cdc328f4fad9ca4962. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. fe4a7626f1ff0d9ad4f18c9b942313537b0ebfa5df8ecbd0956e008764a2f70b
  2. ea68aa3b4ce8752c5c70b97a582a0a38c5fde075f7251d3b10b182057e61d940
  3. ff705ed8dd75341fb6f3f7761f05d0bfe101338fbadb8a641d7e11b15f00e88b
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.