Degen Protocol
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Session against the house

Blackjack

ended Play money · 244ce4903db56e0869c4aaf8f2603f50

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,310 play
Returned
2,105 play
Bettor's net
-205 play
Return
91.13%

Results by hand

Final
Hands
200
played
Pace
16.7/min
overall 19.3/min
Biggest swing
-50
Seat 1 · hand 168

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

SeatNetRateStreak
gbb-205-102.5 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
10010A♣A♣ 125♥8♣9♦ 22 bust00× the bet
9910Q♠6♣A♣ 17K♠J♥ 20202× the bet
98102♥10♠8♦ 204♦5♥10♥ 1900× the bet
97109♠A♣ 207♠7♠J♦ 24 bust00× the bet
9610J♠A♣ 21K♦Q♥ 2000× the bet
95107♦3♣ 103♣K♣A♦10♦ 24 bust00× the bet
9410Q♦9♦ 195♠4♦Q♦ 19101× the bet
93106♥9♣4♦ 1910♠Q♦ 20202× the bet
9210A♦3♦ 142♠10♠A♠Q♥ 23 bust00× the bet
9110Q♥8♠ 189♥8♠ 1700× the bet
9010K♦5♦5♣ 2010♠9♦ 1900× the bet
891010♥9♦ 195♦J♣ 15 surrendered50.5× the bet
88108♦10♥ 189♠5♣J♦ 24 bust00× the bet
87108♥J♣ 183♥4♠4♦2♦A♣6♥ 20202× the bet
86107♥10♠ 17J♦10♥ 20202× the bet
8510K♥Q♦ 208♥Q♥ 1800× the bet
841010♦5♥A♥4♠ 205♣4♥9♥ 1800× the bet
8310A♠Q♥ 216♦A♣ 1700× the bet
82103♥7♣K♣ 205♠10♦ 1500× the bet
81106♥9♥5♥ 2010♦6♠ 1600× the bet
801010♠5♠2♦ 174♣8♥2♦3♥ 17101× the bet
79105♠2♥Q♠ 178♠Q♥ 18202× the bet
78108♠10♠ 185♦7♣2♥3♣ 1700× the bet
77107♣5♣2♣10♠ 249♣2♠Q♥ 21 doubled404× the bet
76105♦J♥9♥ 242♦A♥Q♥ 13202× the bet
75105♠A♠8♣8♦ 223♥8♥6♣ 17 doubled404× the bet
74104♥5♠K♠ 192♣3♦Q♦ 1500× the bet
731010♦10♥ 205♦J♥ 15 surrendered50.5× the bet
721010♣4♣10♦ 247♥3♥4♣3♣ 17202× the bet
7110J♦9♥ 199♥Q♥ 19101× the bet
70102♥K♥Q♦ 22A♦5♣2♥ 18202× the bet
6910J♠8♦ 1810♠K♦ 20202× the bet
681010♣6♦ 16A♦K♥ 21 blackjack252.5945× the bet
67108♥2♥2♠J♥ 222♦9♠7♣ 18 doubled404× the bet
66102♥7♦Q♥ 196♥10♥ 166♠10♣ 1600× the bet
65102♦10♠A♣7♣ 202♠4♣5♦7♠ 1800× the bet
6410A♣3♥ 14A♥Q♠ 21 blackjack252.5945× the bet
6310K♥10♣ 207♠3♥5♦4♦ 1900× the bet
6210K♦7♣ 173♦9♣3♠3♠ 18202× the bet
61109♣5♣Q♣ 244♦6♣2♥ 12 doubled404× the bet
6010A♠J♦ 2110♠4♥ 1400× the bet
5910K♦10♠ 203♥6♠10♦ 1900× the bet
58108♣6♥ 145♠J♣Q♦ 25 bust00× the bet
57107♦3♦J♠ 204♥5♥2♣Q♦ 21202× the bet
56107♦J♦ 179♦K♠ 19202× the bet
55109♦7♣2♣ 184♠4♥A♦ 19202× the bet
5410J♠2♣9♣ 212♠K♦7♣ 1900× the bet
53107♦6♣A♦A♦5♥ 203♠K♦A♦6♣ 20101× the bet
521010♣Q♦ 205♦6♦J♣ 21 doubled404× the bet
511010♥K♠ 20Q♠10♣ 20101× 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
8aa5d57e1db33ed864d1aeef55a6d30ac6fb3aa691fce4795c6e351da6463cdf
Seed
032b9bbd32e8ba5f4f36f468b39df7c3dd6e86f1e863f3e5ac288bec7edc412e SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
28eb68448c0c5d8f8f66108c44dfa35f
Commitment
Batch 67,332, Merkle root 93105673d5c647ecfde8d0c6c63733f1bf527693bcbf9b216d6795617e63af82. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 36062b3ca454ff2edbf2595ec19486072251e18715aaa283ba04c96b15207a26
  2. 3ac95c181aafa457d1735b7fa26237b8266416307990c66521ccba043ba43f43
  3. 3584bf8baaa4f8bd07f9851c64eb40514848d0fc7b72625b245af7a45ac6dc26
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.