Degen Protocol
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Session against the house

Blackjack

ended Play money · 9a2d3cc42af8547dab03d17c5aa7b907

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,200 play
Returned
2,475 play
Bettor's net
+275 play
Return
112.50%

Results by hand

Final
Hands
200
played
Pace
16.5/min
overall 19.5/min
Biggest swing
+20
Seat 1 · hand 10

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

SeatNetRateStreak
gbb+275+137.5 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100103♥5♠10♥ 18Q♣9♥ 19202× the bet
991010♣4♣Q♠ 246♣2♥5♠5♥ 18202× the bet
9810J♠8♣ 186♦J♣ 16 surrendered50.5× the bet
9710J♣10♠ 2010♥8♥ 1800× the bet
961010♣6♥ 162♣6♠7♥Q♠ 25 bust00× the bet
95103♦3♦6♠3♣9♦ 249♥6♥ 15202× the bet
94105♣5♠5♣2♠ 17Q♣7♥ 17101× the bet
93107♥3♦ 104♣2♥7♠2♠A♥J♠ 26 bust00× the bet
92108♠Q♠ 18K♠A♥ 21 blackjack252.5945× the bet
91104♥K♥4♠ 182♥4♠J♣ 1600× the bet
90109♣10♣ 192♠7♣A♥ 20202× the bet
8910J♦10♦ 207♠6♦5♠ 1800× the bet
88106♦J♣J♣ 269♠6♦ 15202× the bet
8710Q♠2♠2♣A♠3♦ 18A♠7♠K♥ 18101× the bet
86107♦J♦ 175♣K♠5♣ 20202× the bet
85102♣K♣2♥9♥ 235♣6♦4♥ 15 doubled404× the bet
8410A♠7♠ 187♠6♠9♦ 22 bust00× the bet
8310K♥J♥ 204♦K♣5♣ 1900× the bet
8210J♦9♦ 19K♣3♣J♦ 23 bust00× the bet
8110K♥5♦8♦ 239♥9♣ 18202× the bet
80108♥5♣K♣ 239♥8♠ 17202× the bet
7910J♥2♠8♠ 207♦3♥J♣ 20101× the bet
781010♦2♠8♥ 209♣9♠ 1800× the bet
77103♠3♣6♣9♦ 218♠4♥9♠ 21101× the bet
76104♥9♣4♦ 177♣10♣ 17101× the bet
7510J♠9♥ 195♣2♠Q♠ 1700× the bet
74102♠K♥2♣7♠ 212♦8♥K♥ 20 doubled00× the bet
73104♣9♣6♠ 196♣4♣3♣ 13 doubled00× the bet
72102♠6♠2♥Q♦ 20A♥7♠ 1800× the bet
7110J♥5♥J♣ 253♦J♥8♥ 21202× the bet
70107♠10♣ 175♠3♠3♥7♣ 18202× the bet
69104♠10♦3♣ 173♠5♣Q♣ 18202× the bet
68108♦K♥ 18J♣5♠5♠ 20202× the bet
67103♦3♥3♦6♠9♠ 24J♥4♥ 14202× the bet
66104♣A♥3♠ 183♦4♣4♦Q♦ 21202× the bet
6510A♣Q♣ 21K♠4♣ 1400× the bet
64105♦4♦8♠ 172♦4♥10♥ 1600× the bet
63102♥4♦10♠6♠ 226♥A♣8♥ 15202× the bet
6210J♥4♣K♠ 247♠5♦2♣6♣ 20202× the bet
61107♥8♥10♠ 253♠A♠5♠ 19202× the bet
6010A♥A♦ 124♣6♥3♥K♦ 23 bust00× the bet
59105♠8♠A♠3♦ 172♣J♠ 1200× the bet
5810A♣2♠6♠ 199♣J♣ 19101× the bet
57102♣2♣ 4A♣10♠ 21 blackjack252.5945× the bet
56104♦Q♦7♦ 216♦K♣ 1600× the bet
5510K♥10♠ 208♠4♣10♠ 22 bust00× the bet
5410A♣A♥5♠ 172♣2♠K♥6♣ 20202× the bet
53106♣K♦A♣ 17K♥4♦ 1400× the bet
52105♥8♣Q♠ 237♦J♣ 17202× the bet
51104♠K♥A♠5♣ 202♠6♥8♦ 1600× 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
7e28fa95d9df4b282e7324694162cfda78d1d6f7c3d27c24cbc39e6a47e7493c
Seed
68944150f5313d84e286f8f50a76ab2fd9f163ca3890f5778dbb36c1b54ba12b SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
036d22048665c99dc5424549af1cf022
Commitment
Batch 66,089, Merkle root 3ae1be3fc8f07f1a63cd40c63e4ef16810ce40d0a88695c1e2b1b6dc138d75cd. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 9d9ba91ca68d7c3249211ca3d75d6fd09d869b1395693601890d4eb382f6ff87
  2. 08820b8ac8b94b251ed4cd1ebe0b50fea48fbfaf3ad7dabdfc6c9959a3d09e43
  3. 6b6609d713684f32d45fa173419d3b1e4c35bb77d8383af98acf3775a57de251
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.