Degen Protocol
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Session against the house

Blackjack

ended Play money · 07add59eb779c96a219db5bb927f5b1d

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,310 play
Returned
2,215 play
Bettor's net
-95 play
Return
95.89%

Results by hand

Final
Hands
200
played
Pace
21.4/min
overall 20.8/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-95-47.5 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
10010J♠8♣ 185♠7♠4♠7♠ 23 bust00× the bet
99106♥K♣9♥ 257♥6♣ 13202× the bet
9810K♦10♦ 203♣4♣J♦ 1700× the bet
97106♦6♦9♦ 213♦5♦5♥ 1300× the bet
96107♠2♠8♠ 17K♠Q♥ 20202× the bet
95102♦Q♣5♠ 176♠9♣ 1500× the bet
94106♣5♥J♦ 21Q♦9♣ 1900× the bet
93107♠J♠ 17A♣J♣ 21A♠7♥ 18404× the bet
9210K♥J♠ 203♦10♥K♠ 23 bust00× the bet
91103♥K♠Q♣ 238♦2♦10♥ 20 doubled404× the bet
9010K♥8♥ 182♣6♠8♥5♥ 21202× the bet
891010♠6♥ 167♠5♥3♠7♠ 22 bust00× the bet
88106♥K♥4♦ 205♦6♣K♥ 21 doubled404× the bet
87107♣10♣ 173♣Q♥9♠ 22 bust00× the bet
8610J♣J♦ 2010♠4♠3♣ 1700× the bet
85107♥6♦3♥3♦ 195♠A♠9♥6♦ 21202× the bet
8410A♣4♦ 156♦9♣A♦K♥ 26 bust00× the bet
8310K♥6♥ 1610♠2♣10♦ 22 bust00× the bet
8210Q♦9♥ 195♣8♣A♦8♦ 22 bust00× the bet
811010♠Q♦ 20J♦10♣ 20101× the bet
80107♥4♠5♣5♥ 214♦3♣5♥A♦6♦ 1900× the bet
7910Q♥9♠ 193♥8♣Q♦ 21 doubled404× the bet
78104♦A♠2♦ 174♣J♥ 1400× the bet
7710J♠2♣2♣A♦9♣ 24A♥8♦ 19202× the bet
76107♠9♥4♦ 205♣3♠K♥ 1800× the bet
7510K♣9♦ 1910♠10♥ 20202× the bet
74105♣4♠J♥ 19A♠4♠5♠ 20 doubled404× the bet
7310Q♦6♠3♠ 19K♦10♠ 20202× the bet
7210K♣7♣ 173♣9♣K♥ 22 bust00× the bet
71109♦K♠ 19J♠6♠ 16 surrendered50.5× the bet
7010K♥Q♣ 20Q♥7♥ 1700× the bet
6910A♠8♠ 19A♣J♠ 21 blackjack252.5945× the bet
6810A♦J♦ 219♠Q♠ 1900× the bet
6710A♥5♠9♠3♣ 188♣Q♥ 18101× the bet
66106♥10♠2♦ 18Q♠5♣ 1500× the bet
6510J♣4♣ 142♥7♠6♦10♠ 25 bust00× the bet
64105♠10♥A♦2♠ 188♠6♦ 148♥7♥ 1500× the bet
63102♥K♠9♥ 21A♣2♦K♦ 1300× the bet
62105♣J♣5♥ 2010♦5♦ 1500× the bet
61107♥7♣ 14A♦5♣7♦J♦ 23 bust00× the bet
60109♠9♦ 182♦5♦K♣ 1700× the bet
5910J♣6♠10♣ 263♠5♦5♦7♦ 20202× the bet
58103♦4♦J♥ 174♣4♠7♠ 1500× the bet
5710Q♥4♠ 145♠Q♣ 15 surrendered50.5× the bet
56102♣8♠K♥ 208♦A♦ 1900× the bet
5510Q♦Q♦ 20J♥A♣ 21 blackjack252.5945× the bet
54104♦7♠3♠J♦ 248♦K♥ 18202× the bet
5310Q♥A♥ 214♠6♥ 1000× the bet
52103♠K♦ 1310♣2♦Q♥ 22 bust00× the bet
511010♣J♣ 203♦4♠2♣6♣4♦ 1900× 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
74219d6cfa6271d453c45eaca005f38c80521918452a1fa4385412435f930a91
Seed
889ff153fbff6118c4d2042100b6bdc6095d5befc74b6a4eea1222d37927e31d SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
a1ec1d3b212c4e8eab3241bee79a585d
Commitment
Batch 67,814, Merkle root d2572db41a653392a81399ad102f47b7540a065c75302fa559077c29cebc70f8. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 0cfce7061949dab073d9782383a170f5b0ef00c250b88d68485390234e6c89e9
  2. 68f8f014ada39343b65ed4dd5ea4d4ddfe5aa55199fa4a538e0a847c0f0b191c
  3. 0a018ddf4fd32ee96a046133c6dbbae837b93c911c2d5404215bec184638dce1
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.