Degen Protocol
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Session against the house

Blackjack

ended Play money · 589b73735b8ed6fcb0890c909bae0704

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,330 play
Returned
2,310 play
Bettor's net
-20 play
Return
99.14%

Results by hand

Final
Hands
200
played
Pace
22.5/min
overall 20.5/min
Biggest swing
+50
Seat 1 · hand 95

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

SeatNetRateStreak
gbb-20-10.0 play/100won 3

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
150105♠Q♥6♦ 21Q♠5♥ 1500× the bet
149106♦5♣10♥ 214♥10♠ 1400× the bet
14810A♠J♦ 21K♣4♠ 1400× the bet
147109♠J♣ 197♦A♠9♠ 1700× the bet
146105♦5♣J♠ 205♣7♥ 1200× the bet
145105♠9♥9♠ 23J♠5♦ 15202× the bet
144105♦4♥K♠ 199♦K♥ 19101× the bet
143106♥A♠ 176♠10♠ 1600× the bet
142106♥10♦A♣ 173♠A♦2♠ 16 doubled00× the bet
141109♥6♣ 158♠7♦K♥ 25 bust00× the bet
14010K♣4♥ 14J♠2♥J♠ 22 bust00× the bet
13910K♥J♠ 208♠J♣ 1800× the bet
138103♣3♥3♠6♦9♥ 246♠K♠ 16202× the bet
13710K♠6♣ 16A♣3♥3♠7♠8♠ 22 bust00× the bet
136108♣9♦ 17A♣3♥Q♥9♣ 23 bust00× the bet
13510K♠8♠ 18J♠8♦ 18101× the bet
13410Q♠7♥ 17J♥K♠ 20202× the bet
133103♠J♥10♥ 23K♦J♠ 20202× the bet
132104♠3♥10♣ 178♣3♣5♣ 16 doubled00× the bet
131107♦2♦5♣Q♥ 247♦A♠ 18202× the bet
130102♥9♥K♥ 214♣5♦6♥ 1500× the bet
12910A♦9♣ 204♠2♦J♠7♦ 23 bust00× the bet
12810K♦K♠ 2010♠A♠ 21 blackjack252.5945× the bet
127105♠9♦2♣5♦ 212♠3♠5♥A♣ 21101× the bet
126103♥8♦7♦ 18Q♣Q♠ 20202× the bet
125107♣4♦J♦ 215♣4♠10♣ 1900× the bet
124106♦9♥5♥ 208♥10♦ 1800× the bet
123106♣Q♣7♣ 235♠10♥ 15202× the bet
122107♦K♠ 176♠3♣3♦6♠ 18202× the bet
12110K♥3♣ 13K♥6♥ 16 surrendered50.5× the bet
12010Q♦4♥ 14Q♠A♦ 21 blackjack252.5945× the bet
119106♥9♦7♦ 224♣J♥ 144♥9♥ 13404× the bet
11810J♥10♠ 20A♦10♣ 21 blackjack252.5945× the bet
117109♠9♦ 183♠6♠K♥ 19202× the bet
116102♦6♠2♦6♠2♠ 185♠A♦K♠ 1600× the bet
115109♦2♥2♣2♥Q♠ 25A♠2♦6♠ 19202× the bet
114104♥4♥A♠ 199♣10♦ 19101× the bet
113107♦7♣9♦ 23J♦J♣ 20202× the bet
112104♠A♠K♠Q♥ 259♠6♠ 15202× the bet
111109♠6♦10♦ 253♥7♦7♥ 17 doubled404× the bet
110109♥7♠5♣ 2110♦Q♣ 2000× the bet
109103♠6♦A♥ 202♦5♣K♣ 1700× the bet
108102♥J♠8♥ 20Q♦Q♣ 20101× the bet
107103♥A♦ 1410♥A♦ 21 blackjack252.5945× the bet
106109♥6♣9♦ 24A♦6♦3♦ 20202× the bet
105106♣J♠10♠ 264♥3♣6♣ 13202× the bet
1041010♠8♦ 188♥4♣4♦9♠ 25 bust00× the bet
1031010♣6♦Q♣ 2610♦9♣ 19202× the bet
102106♦7♠6♣ 19A♠4♥8♠ 13 doubled00× the bet
101103♠5♣8♠K♥ 264♦K♥ 14202× 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
4224148003cb3bc236a47ab91b3f345dc6e58a5e17c30637ee734ec08ee256f8
Seed
7ab25cabdd95eb985281e6738a736a285a30b4f5ed670e2a5f03b9a1b0ef9099 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
eea658bd22529d044568246a4bcd2200
Commitment
Batch 66,451, Merkle root 2f465b3931f419208468a33d5eaf2fbfa32c21cc9c5fdf28d786b1d25dc00c09. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. adca80450b96233955c745b34b9995b2ece2b4ec6f7cd78517e0062a68d5955c
  2. 21980a5070ef2e0a9f52d1f2ab23282c893b0794853fe834979c7e1a02a84b8c
  3. b7cb77f80f8e17482c942506ee68bad39a38e18385b1ea4827f009deb39cde87
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.