Degen Protocol
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Session against the house

Blackjack

ended Play money · 07add59eb779c96a219db5bb927f5b1d

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,310 play
Returned
2,215 play
Bettor's net
-95 play
Return
95.89%

Results by hand

Final
Hands
200
played
Pace
21.4/min
overall 20.8/min
Biggest swing
-20
Seat 1 · hand 13

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

SeatNetRateStreak
gbb-95-47.5 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
200102♣6♠7♥3♣ 182♣10♠2♣ 1400× the bet
19910Q♠3♦4♥ 17A♥7♣3♠ 21202× the bet
198104♣6♦J♠ 203♠Q♠ 1300× the bet
19710K♣8♠ 182♦Q♥7♠ 19202× the bet
19610Q♥2♥3♣9♣ 2410♥7♠ 17202× the bet
1951010♥2♥2♠9♦ 233♦2♥4♥K♣ 19202× the bet
194102♣8♣Q♠ 20J♥3♦ 1300× the bet
193108♦Q♦ 183♣A♦6♣ 20202× the bet
192104♥7♠K♦ 216♠5♦3♣ 14 doubled00× the bet
19110A♠10♥ 213♣10♣ 1300× the bet
19010A♠4♦ 155♥A♦8♥Q♥ 24 bust00× the bet
189106♦K♦Q♥ 2610♦10♠ 20202× the bet
188102♣2♣A♠9♥2♥10♣ 263♠K♥ 13202× the bet
187103♣A♣ 14K♦A♦ 21 blackjack252.5945× the bet
1861010♠8♥ 189♦3♦J♠ 22 bust00× the bet
185108♣8♥ 162♥Q♣Q♥ 22 bust00× the bet
184104♦5♠10♥ 194♠Q♥ 1400× the bet
18310K♠4♦2♥10♣ 2610♠7♣ 17202× the bet
182109♦J♣ 195♦9♣10♥ 24 bust00× the bet
18110A♦6♥ 175♦8♦Q♦ 23 bust00× the bet
180107♦8♦9♣ 249♦4♥7♠ 20202× the bet
17910J♥3♣Q♠ 23K♥Q♦ 20202× the bet
178107♣8♣5♥ 209♦2♦8♠ 19 doubled00× the bet
177107♥J♣ 173♥7♥K♦ 20 doubled404× the bet
176105♣7♦6♦ 18J♦7♥ 1700× the bet
17510J♦5♠ 1510♠6♠ 16 surrendered50.5× the bet
174105♥6♣2♠J♦ 239♠3♥ 12202× the bet
173103♣3♥3♣2♦Q♥ 215♦4♠7♣ 16 doubled00× the bet
17210J♠9♣ 195♦6♦Q♦ 21 doubled404× the bet
171102♣K♦9♣ 216♦Q♠ 166♠8♦ 1400× the bet
1701010♠10♦ 209♠4♠A♣9♠ 23 bust00× the bet
169103♣A♥ 14A♥10♠ 21 blackjack252.5945× the bet
168104♠K♥2♠Q♦ 2610♦3♥ 13202× the bet
167103♦4♥Q♦ 173♦2♥K♣ 1500× the bet
166104♦Q♥K♠ 247♦K♣ 17202× the bet
165103♥4♦2♠5♦K♣ 242♦5♦2♦3♥A♦ 13202× the bet
16410J♣10♠ 204♣6♦Q♦ 20101× the bet
163107♣6♦ 133♦K♦3♣Q♦ 26 bust00× the bet
16210J♣5♣ 15Q♠5♥ 15 surrendered50.5× the bet
161102♦4♣2♥6♣4♥ 1810♦10♦ 20202× the bet
1601010♥7♠ 17Q♠Q♠ 20202× the bet
159107♣K♠ 17A♥4♥9♠A♣10♠ 25 bust00× the bet
15810K♣9♥ 196♠5♠7♠ 18 doubled00× the bet
15710Q♥3♣2♣Q♣ 25J♥J♠ 20202× the bet
156109♥Q♠ 19A♦4♣K♦3♦ 1800× the bet
155104♥A♠6♠ 2110♦6♣ 1600× the bet
154104♥9♣ 13Q♣A♦ 21 blackjack252.5945× the bet
153104♣Q♣Q♠ 24Q♦Q♣ 20202× the bet
152104♦7♦J♠ 213♦4♠Q♥ 1700× the bet
151108♥9♠ 179♦10♣ 199♣Q♦ 199♣5♣3♠ 17505× 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
74219d6cfa6271d453c45eaca005f38c80521918452a1fa4385412435f930a91
Seed
889ff153fbff6118c4d2042100b6bdc6095d5befc74b6a4eea1222d37927e31d SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
a1ec1d3b212c4e8eab3241bee79a585d
Commitment
Batch 67,814, Merkle root d2572db41a653392a81399ad102f47b7540a065c75302fa559077c29cebc70f8. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 0cfce7061949dab073d9782383a170f5b0ef00c250b88d68485390234e6c89e9
  2. 68f8f014ada39343b65ed4dd5ea4d4ddfe5aa55199fa4a538e0a847c0f0b191c
  3. 0a018ddf4fd32ee96a046133c6dbbae837b93c911c2d5404215bec184638dce1
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.