Degen Protocol
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Session against the house

Blackjack

ended Play money · a14bf4bbccd84606b40748face05f0f4

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,220 play
Returned
2,210 play
Bettor's net
-10 play
Return
99.55%

Results by hand

Final
Hands
200
played
Pace
21.5/min
overall 21.4/min
Biggest swing
-20
Seat 1 · hand 47

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

SeatNetRateStreak
gbb-10-5.0 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100102♠4♥ 6A♥K♥ 21 blackjack252.5945× the bet
9910A♦8♥ 192♠4♣3♣Q♣ 19101× the bet
98103♣K♠ 13J♦2♣J♥ 22 bust00× the bet
9710A♣K♣ 218♥2♣ 1000× the bet
96102♦5♣Q♦ 176♣Q♣ 1600× the bet
95109♣K♠ 198♣A♠ 19101× the bet
94104♣7♦K♣ 215♥8♦ 1300× the bet
93109♥K♠ 19A♥5♥9♥3♦ 1800× the bet
9210J♣10♣ 20A♣9♦ 20101× the bet
91109♠7♦ 16J♦3♥3♦8♣ 24 bust00× the bet
9010Q♣6♣ 1610♣A♥ 21 blackjack252.5945× the bet
89106♣9♣K♥ 258♦K♥ 18202× the bet
88109♣4♦ 13J♠3♠9♦ 22 bust00× the bet
87107♠6♣6♠ 197♠Q♥ 1700× the bet
86102♣4♥J♣10♥ 269♥2♠A♣ 12 doubled404× the bet
85102♠9♥10♥ 219♠3♥9♠ 21101× the bet
84103♠8♦A♦7♥ 199♠Q♦ 19101× the bet
831010♣4♠7♠ 216♦5♥3♥ 14 doubled00× the bet
821010♦6♦A♥ 173♥3♣K♣3♦ 19202× the bet
81107♣10♥ 17Q♠10♣ 20202× the bet
80106♥3♠2♣J♠ 21Q♦7♥ 1700× the bet
79108♥2♠ 10A♠10♦ 21 blackjack252.5945× the bet
781010♦A♦ 217♥10♣ 1700× the bet
77104♣A♥5♠ 20J♠5♦ 1500× the bet
7610K♦Q♦ 208♦9♥ 1700× the bet
75108♠7♠ 155♥7♦3♣K♥ 25 bust00× the bet
74106♠10♥K♦ 263♣8♠3♦ 14 doubled404× the bet
7310K♠J♣ 204♠8♥4♥8♠ 24 bust00× the bet
721010♦J♥ 20Q♥5♣ 15 surrendered50.5× the bet
71103♥3♦K♠K♥ 266♦Q♥ 16202× the bet
70108♥6♠Q♠ 248♣6♦A♣6♥ 21202× the bet
6910J♥4♥6♣ 204♠6♠K♦ 20101× the bet
68106♠9♦5♦ 204♥Q♦ 1400× the bet
67104♥3♥3♥2♣3♠5♣ 205♣3♥K♦ 1800× the bet
66104♦9♥K♥ 238♣A♦ 19202× the bet
6510A♦Q♥ 212♣A♦ 1300× the bet
6410Q♦8♦ 189♣9♠ 18101× the bet
63106♠5♠Q♣ 21J♣J♠ 2000× the bet
62104♦9♠J♣ 238♦2♣J♣ 20 doubled404× the bet
61104♦4♠Q♣ 18K♠J♣ 20202× the bet
6010A♣7♣ 18A♥8♠ 19202× the bet
59105♥2♥7♥J♣ 24J♥6♥ 16202× the bet
581010♥9♠ 199♥8♠ 1700× the bet
5710J♦6♠3♣ 197♣4♣10♣ 21 doubled404× the bet
5610K♦9♣ 197♥A♦3♣ 21202× the bet
55107♠3♠3♠3♦K♦ 267♥3♥7♣ 17 doubled404× the bet
54105♠8♥9♠ 226♥9♥ 15202× the bet
5310Q♥J♣ 208♦6♣5♥ 1900× the bet
52102♠Q♠6♣ 186♠9♥ 1500× the bet
51103♦2♣A♣5♥ 213♠Q♦ 1300× 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
1c984ac4aa151c7e17c60b1bad263abca71c5500ba7bd74d7eef59ac9b47e02a
Seed
29844d4833918da5233f10ea7dc368954250861926f6db004ad76c58a788275e SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
90ff5269704a000fe5f696f82f14c4a1
Commitment
Batch 68,554, Merkle root 2c0394a2cd86dcc30bc6d049f51d68a2f116e9cd8c83fd92c97b9b68c90f8de1. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. f404709e58c54a8d3a839e085e1e438f6d8b783cedbb39581bd3f9478a86d340
  2. ad5dc7d42dff0f32e985fd489ae893dba646a7e46ff497eaa3db2abe3be126a3
  3. e336a4186c28f05a03fc1dd676256e79fe189fba907ace17a96b1cc5b43f985f
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.