Degen Protocol
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Session against the house

Blackjack

ended Play money · e56b3a6d2d22709b1e629598f11d586f

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,280 play
Returned
2,080 play
Bettor's net
-200 play
Return
91.23%

Results by hand

Final
Hands
200
played
Pace
20.8/min
overall 20.7/min
Biggest swing
-50
Seat 1 · hand 76

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

SeatNetRateStreak
gbb-200-100.0 play/100won 6

Last hands

  1. 200Seat 1+20
  2. 199Seat 1+10
  3. 198Seat 1+15
  4. 197Even0
  5. 196Seat 1+15
  6. 195Seat 1+10
  7. 194Seat 1+10
  8. 193Even0
  9. 192Seat 1+10
  10. 191Seat 1+20
  11. 190Seat 1+10
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
100108♠2♥A♠ 21A♣2♦9♠8♠ 2000× the bet
99104♥8♥J♦ 222♥J♦ 122♠8♣6♥ 16 doubled606× the bet
98105♣5♦6♥5♣ 213♣6♥7♣ 16 doubled00× the bet
9710A♦J♥ 21Q♠2♠ 1200× the bet
9610Q♥9♥ 198♦K♥ 1800× the bet
9510Q♣J♠ 20A♣4♠2♠4♣ 21202× the bet
94104♥3♥ 7A♠K♠ 21 blackjack252.5945× the bet
93109♣6♦7♣ 222♣8♣7♥ 17 doubled404× the bet
92109♣9♠ 183♠8♥Q♦ 21 doubled404× the bet
91105♦2♦4♦K♦ 21J♠Q♥ 2000× the bet
9010K♠J♠ 204♥9♥3♣8♣ 24 bust00× the bet
89103♠A♣9♦Q♠ 237♦6♥ 13202× the bet
8810K♠9♦ 19Q♦K♣ 20202× the bet
8710J♦A♦ 21Q♥10♥ 2000× the bet
861010♣9♦ 19Q♦2♦9♦ 21202× the bet
85103♣K♦K♣ 234♣5♠A♦ 20 doubled404× the bet
8410A♠3♠7♦ 21A♦9♥ 2000× the bet
83108♣5♦ 13K♣A♠ 21 blackjack252.5945× the bet
82107♦Q♣ 174♦8♦Q♠ 22 bust00× the bet
81109♦Q♠ 197♥2♦8♦ 1700× the bet
80109♣8♠ 177♥7♥7♣ 21202× the bet
79106♥A♣ 177♠9♣ 1600× the bet
78104♥5♣10♦ 19J♦3♠ 1300× the bet
771010♦K♥ 20Q♥3♥8♣ 21202× the bet
76103♦8♠K♣ 213♠6♠8♠ 17 doubled3♣4♠A♦ 183♣8♦3♠ 14 doubled00× the bet
7510Q♠9♥ 194♠3♥7♦8♠ 22 bust00× the bet
74104♦4♣9♠ 173♦5♦3♣A♣ 1200× the bet
7310K♥6♣2♣ 182♠2♣6♣7♠ 1700× the bet
72106♠5♠9♠ 202♣7♦6♠ 15 doubled00× the bet
71104♦5♠8♠ 174♥6♥7♥ 17 doubled202× the bet
70109♣4♣ 138♥7♥A♦10♥ 26 bust00× the bet
69103♣5♣K♦ 187♣J♣ 1700× the bet
68104♣9♣10♦ 238♠2♣8♠ 18 doubled8♦10♣ 18606× the bet
6710Q♠7♦ 176♥9♥ 15 surrendered50.5× the bet
6610Q♣K♦ 204♣Q♣8♥ 22 bust00× the bet
6510Q♣6♦5♥ 21Q♦9♠ 1900× the bet
64109♠3♦10♣ 228♥10♠ 18202× the bet
6310Q♦K♦ 208♣6♣A♠A♠6♦ 22 bust00× the bet
62109♣6♦6♦ 214♥Q♣7♥ 21101× the bet
61108♦9♥ 178♦5♣Q♥ 23 bust00× the bet
601010♣7♦ 179♦9♦ 18202× the bet
59108♥6♣ 143♣6♣5♥8♠ 22 bust00× the bet
58105♣9♣Q♠ 24Q♥9♦ 19202× the bet
57109♥4♥K♦ 237♥10♦ 17202× the bet
56102♠Q♣9♥ 213♠10♠ 1300× the bet
551010♦2♥4♣6♥ 227♠Q♥ 17202× the bet
5410K♠7♥ 179♣8♠ 17101× the bet
53107♥6♥ 139♣5♥9♠ 23 bust00× the bet
5210J♥K♥ 206♠2♦J♣ 1800× the bet
51104♣3♥4♣J♠ 21J♦9♠ 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
f9605cbd7a191ea186fd4f4754203c8ba30488b2d07116aa131669cf1311bef8
Seed
4ccb5dbaf90abd2b354faf706799cabe323dd595bc7703aa0595be3e05d8a0bc SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
06342030e8a5cfdd2b8fa464f04bd47a
Commitment
Batch 67,766, Merkle root 75ac45b0300cd8c7b068614029e1c9def79d442cd8a0a7870477794df95dd424. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 14a61d2c4e2d195ab3664f73a77ffc2198e032938eba2971c282e42819c7ee37
  2. 6e6fac05433c1a409fcf4dbb65b2ec86945028a888549f086bc74c7489c8d6b6
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.