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Degen Protocol
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Session against the house

Blackjack

ended Play money · 851a29dab06909d42c90173fd07dbb36

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,360 play
Returned
2,245 play
Bettor's net
-115 play
Return
95.13%

Results by hand

Final
Hands
200
played
Pace
20.7/min
overall 20.4/min
Biggest swing
+40
Seat 1 · hand 200

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

SeatNetRateStreak
gbb-115-57.5 play/100won 4

Last hands

  1. 200Seat 1+40
  2. 199Seat 1+10
  3. 198Seat 1+10
  4. 197Seat 1+10
  5. 196Even0
  6. 195Even0
  7. 194Even0
  8. 193Even0
  9. 192Even0
  10. 191Even0
  11. 190Seat 1+10
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
100109♣4♥ 133♦3♥8♥Q♣ 24 bust00× the bet
9910Q♠6♦10♠ 265♣3♣2♦10♣ 20202× the bet
98107♦10♦ 17K♥8♦ 18202× the bet
97104♠4♣10♦ 188♣6♣ 1400× the bet
96104♥K♥K♠ 24A♣7♠9♥ 17 doubled404× the bet
95104♣J♥A♣A♣9♠ 253♣J♥ 13202× the bet
9410J♠4♥Q♥ 2410♥8♠ 18202× the bet
93103♠2♥4♣Q♦ 19A♠8♥ 19101× the bet
92105♦9♠10♣ 242♦J♦ 12202× the bet
91104♣K♥8♣ 228♥J♥ 18202× the bet
90103♦3♦7♥J♠ 236♦K♠ 16202× the bet
8910K♠4♦9♠ 23K♦K♦ 20202× the bet
88109♠6♦A♥8♦ 24J♠K♣ 20202× the bet
87106♥J♦5♥ 21K♦2♦ 1200× the bet
86103♥Q♥Q♠ 232♥K♠7♦ 19202× the bet
85106♣9♥6♣ 212♦K♠ 1200× the bet
84106♣K♥K♥ 268♦2♠A♣ 21 doubled404× the bet
8310Q♥9♣ 198♣3♣J♦ 21 doubled404× the bet
82102♦3♦2♦9♥K♠ 263♥8♥6♠ 17 doubled404× the bet
811010♠8♠ 189♦9♦ 18101× the bet
80107♣9♣ 165♥3♠5♥10♥ 23 bust00× the bet
79103♠10♦9♦ 226♣K♣ 16202× the bet
7810J♠9♣ 19A♠4♥A♣Q♣7♠ 23 bust00× the bet
77106♠J♥K♠ 265♦6♠7♠ 18 doubled404× the bet
76104♥3♠5♦6♣ 185♠Q♣ 1500× the bet
75108♦4♣ 125♥Q♥J♠ 25 bust00× the bet
7410K♥6♦7♠ 2310♥K♣ 20202× the bet
73108♥6♣4♠ 187♥Q♦ 1700× the bet
7210K♥5♥ 158♠4♣K♣ 22 bust00× the bet
7110Q♠8♦ 18K♣K♥ 20202× the bet
7010Q♦9♠ 19A♠Q♠ 21 blackjack252.5945× the bet
69106♦4♦ 10Q♣A♦ 21 blackjack252.5945× the bet
68107♥5♠A♠5♥ 187♣Q♦ 1700× the bet
67104♥3♥ 7A♦K♦ 21 blackjack252.5945× the bet
6610A♥9♥ 20Q♠J♠ 20101× the bet
651010♥8♠ 183♥8♦3♠ 14 doubled00× the bet
6410A♠2♣J♠2♥6♣ 218♠4♥3♣2♣ 1700× the bet
631010♦J♦ 20Q♣7♥ 1700× the bet
62109♦A♣ 208♣A♠ 1900× the bet
61107♥9♠K♦ 262♠8♦4♥ 14 doubled2♣10♠K♦ 22 bust404× the bet
60106♣10♠2♥ 18Q♦4♣ 1400× the bet
59106♠J♣6♥ 225♣A♠2♥ 18 doubled404× the bet
58109♣9♣ 18A♥9♥ 20A♦8♣ 19404× the bet
5710A♠K♦ 2110♥10♦ 2000× the bet
56107♥6♦10♥ 23J♥7♦ 17202× the bet
55103♠K♥A♦9♥ 2310♥8♦ 18202× the bet
5410K♥10♥ 20Q♥7♠ 1700× the bet
53102♣Q♠2♠A♠6♠ 21Q♣5♥ 1500× the bet
52104♥7♣4♣9♦ 24A♣7♥4♠ 12 doubled404× the bet
51104♥A♣3♣ 18Q♠6♦ 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
a7e58073e977e7b8166b5f36d46145071386db6009beef9a80214e12dbbad56f
Seed
743ff2802ed77ee0d397f58a8b167419574135e93a244cacffebdb86f660e49b SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
73ca8f2499572115cbb37fcce99bf23e
Commitment
Batch 64,437, Merkle root 679af53df71b81612b06ac89a1de6bc06c5e1d028814174459014b567eab97ab. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
Merkle path
  1. 3386c3a62d2cfc347b8fbd94431b9406939c7e19e4104a86b8f75dd0986d192e
  2. 3b168157260aba0615b32b53569b0e6cc417b70f8b30bada127aebce9bc177e5
  3. ebc5fbbed919512933acb84f50efe23187db207e6fe78cb819f55badd757b089
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.