Degen Protocol
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Session against the house

Blackjack

ended Play money · 17951eb26028bd64745700d7f15d62bb

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,240 play
Returned
2,115 play
Bettor's net
-125 play
Return
94.42%

Results by hand

Final
Hands
200
played
Pace
22.3/min
overall 20.8/min
Biggest swing
+50
Seat 1 · hand 46

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

SeatNetRateStreak
gbb-125-62.5 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
10010J♠Q♦ 207♣3♥3♣10♥ 23 bust00× the bet
9910J♦K♥ 20A♣Q♦ 21A♥2♣ 13202× the bet
98107♠3♥ 104♦8♠Q♠ 22 bust00× the bet
97107♦A♠ 186♥2♦J♠ 18101× the bet
9610A♥7♣ 186♦7♦Q♦ 23 bust00× the bet
95104♦2♦3♠3♦4♠K♥ 269♣Q♣ 19202× the bet
94106♦10♠4♣ 205♥6♦7♥ 18 doubled00× the bet
931010♦A♥ 213♥K♦ 1300× the bet
9210A♦A♠10♠K♦ 22K♥Q♠ 20202× the bet
9110A♠Q♥ 214♠2♦ 600× the bet
901010♦5♠ 154♠8♥K♠ 22 bust00× the bet
89108♠4♠9♠ 21K♠4♣5♦ 1900× the bet
88102♥5♠8♠A♥3♦ 199♥J♣ 199♣8♣ 17101× the bet
8710A♦8♣ 197♦9♥ 16 surrendered50.5× the bet
861010♠8♥ 189♣2♥4♣ 15 doubled00× the bet
8510J♦Q♥ 20Q♥3♠6♦ 1900× the bet
84104♣2♦Q♠3♣ 19K♣7♣ 1700× the bet
83108♣7♣2♦ 174♥7♣Q♥ 21 doubled404× the bet
821010♥10♣ 20A♥2♥8♥ 21202× the bet
81103♣5♦J♣ 1810♣K♠ 20202× the bet
8010J♥K♣ 204♠2♣5♠Q♥ 21202× the bet
791010♠3♣2♠5♦ 209♣3♥2♠5♦ 1900× the bet
78108♣9♣ 17Q♦2♥Q♠ 22 bust00× the bet
77107♠7♦K♠ 249♦J♠ 19202× the bet
76107♠5♠6♥ 185♠K♣6♦ 21202× the bet
75108♦8♣ 16Q♦5♦8♣ 23 bust00× the bet
74107♥8♠ 159♦7♥Q♦ 26 bust00× the bet
73108♠10♠ 183♥Q♥6♠ 19202× the bet
7210Q♠3♠ 136♠Q♣ 16 surrendered50.5× the bet
71109♣A♠ 2010♣8♥ 1800× the bet
70106♦2♥J♣ 183♦9♥ 1200× the bet
69104♣7♣Q♠ 2110♥Q♦ 2000× the bet
68105♣6♦K♦ 216♥9♠ 1500× the bet
671010♠8♣ 18Q♥7♦ 1700× the bet
66103♦5♥K♠ 1810♣10♠ 20202× the bet
65109♥2♠7♥ 18Q♣5♣5♦ 20202× the bet
6410J♣K♦ 20A♦4♠ 15A♠6♦ 1700× the bet
631010♣4♦10♥ 249♦K♣ 19202× the bet
62103♣A♣5♠ 195♠A♦K♣ 1600× the bet
61106♠6♦Q♥ 223♥10♣ 13202× the bet
6010A♦3♥3♥ 17K♠9♥ 19202× the bet
591010♦7♠ 177♣8♣ 15 surrendered50.5× the bet
5810J♠8♠ 182♣4♣10♦K♥ 26 bust00× the bet
57109♠2♣Q♣ 213♦7♣J♣ 20 doubled00× the bet
5610Q♦Q♠ 20K♣8♣ 1800× the bet
55104♠3♥9♣J♠ 263♦A♦J♣ 14202× the bet
54108♦Q♣ 1810♥J♥ 20202× the bet
53102♣A♥8♠ 212♠7♥2♠3♣ 1400× the bet
5210A♥3♦9♦2♦5♥ 2010♣8♣ 1800× the bet
51107♠9♠6♣ 225♣6♣4♣ 15 doubled404× 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
074064209b4f8ba407a16d5a84ac9b75a5d711828076e9e62c77b55ca47b53cf
Seed
bca0c62e4275ac17555fb824492771627aa09904a8f748a8e9fd4bbbf14bbb18 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
3ef756f58d8cf1c44b49e17bc5bbb758
Commitment
Batch 69,857, Merkle root d171ffae059813873a00526b76ac2439869cd90867e1d14364cd0c3f652e7543. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 1e0f2f97bc8e51e0fba7aa9ffaa8f21fdf38d4e9124a79ec3d5faea2b30608a1
  2. 77d925113101262604c3d1c13bdaa991a9d811140e18b773b7b542fadd38df57
  3. 36a76d56a177a2ec830943184a749526f7f5d957f931d3d8743d3e70e408d3ef
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.