Degen Protocol
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Session against the house

Blackjack

ended Play money · 353a5d804f8d6f0d613aebfa6febba80

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,150 play
Returned
2,095 play
Bettor's net
-55 play
Return
97.44%

Results by hand

Final
Hands
200
played
Pace
20.6/min
overall 20.7/min
Biggest swing
-20
Seat 1 · hand 26

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

SeatNetRateStreak
gbb-55-27.5 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
20010J♣10♦ 204♣A♦8♥Q♣ 23 bust00× the bet
199109♦5♠ 146♦10♦ 16 surrendered50.5× the bet
198102♠2♣K♣6♣ 20K♥J♣ 20101× the bet
197104♠8♠J♥ 225♠5♣A♠ 21 doubled404× the bet
19610Q♥9♣ 192♦4♦5♦K♥ 21202× the bet
195105♥8♥10♠ 233♣10♦ 13202× the bet
194105♥Q♠Q♥ 254♦3♥10♠ 17202× the bet
193107♦9♥ 166♦9♦9♦ 24 bust00× the bet
19210A♥6♣ 172♣4♥6♦4♣8♦ 24 bust00× the bet
19110A♦Q♠ 212♥3♠ 500× the bet
190103♣A♣K♦K♣ 242♥8♥7♥ 17 doubled404× the bet
189107♥K♣ 17Q♦4♠8♦ 22 bust00× the bet
188106♣6♦Q♣ 224♥2♣Q♦ 16202× the bet
18710Q♠2♦ 12J♣5♥ 15 surrendered50.5× the bet
1861010♦7♠ 17K♥9♥ 19202× the bet
185105♦A♠K♦4♦ 205♥3♣Q♦ 1800× the bet
1841010♣10♠ 206♣5♣10♥ 21 doubled404× the bet
18310Q♦J♥ 203♦A♦Q♣3♦ 1700× the bet
182102♦5♥ 7Q♠2♣10♦ 22 bust00× the bet
181105♥J♠3♦ 183♥Q♠ 1300× the bet
180109♦7♣ 168♥6♦J♥ 24 bust00× the bet
17910K♠4♥3♣ 177♣K♥ 17101× the bet
178109♦4♦8♠ 219♠10♠ 1900× the bet
177104♥5♣10♣ 195♥Q♣ 1500× the bet
1761010♥Q♥ 203♦7♦10♠ 20101× the bet
175104♠10♦3♠ 172♦6♣5♣ 1300× the bet
174108♥Q♦ 189♣8♦ 1700× the bet
17310Q♠10♣ 207♦3♣10♠ 20101× the bet
17210A♦9♥ 202♠10♠8♥ 20101× the bet
17110J♣10♠ 209♣A♣ 20101× the bet
17010K♦5♥ 15A♥Q♠ 21 blackjack252.5945× the bet
1691010♠8♠ 186♠7♠4♣ 1700× the bet
16810K♣10♣ 20A♦7♦Q♥ 1800× the bet
16710A♣5♥ 169♠5♠A♥Q♠ 25 bust00× the bet
166106♠K♥J♠ 262♣3♦7♠ 12202× the bet
16510Q♥3♥8♦ 21J♦K♣ 2000× the bet
16410Q♦3♠ 135♠K♣ 15 surrendered50.5× the bet
163103♣5♦6♣10♣ 245♥2♦9♣ 16202× the bet
16210J♦Q♦ 203♠J♣2♦4♣ 1900× the bet
161106♣6♦4♦Q♦ 26K♣5♦ 15202× the bet
16010K♥6♠ 165♥8♥3♣J♠ 26 bust00× the bet
159106♣3♣2♥2♣2♦A♥9♠ 259♣8♦ 17202× the bet
158106♦2♥8♠10♣ 268♠J♦ 18202× the bet
15710J♠3♦ 13Q♥6♦ 16 surrendered50.5× the bet
156103♣A♥ 14A♠J♣ 21 blackjack252.5945× the bet
15510K♠9♦ 199♣8♣ 1700× the bet
154108♦5♥K♠ 237♠4♥3♥ 14 doubled404× the bet
153105♠7♥10♥ 22J♠5♥ 15202× the bet
15210A♣6♣ 179♦J♠ 19202× the bet
151107♣9♥ 165♦A♣8♥Q♣ 24 bust00× 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
554a2fe0b5fa135ce6e128fa83db9e23d9184ab1302d574885f03b4d9f7238d3
Seed
099f0327ce339eebe726279ed6dd5a8d6b68cdbecf2375f55363aa3bd44bae31 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
149ca2fa1f8fade4221b63da9b7a82e5
Commitment
Batch 68,585, Merkle root 1ff9ecb4462cf637ff39b02790d8a51f23ef2f74d10017d4d4d59109aa5ef17d. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. ad25da7b6b80734d7202a8200ece67a995cf64cab5fc862565a9b9e5d48d0ddc
  2. d2a8a1ff4a3cc38c9bd3ca4d70b8bf405bb40463502ab5789995b0094a2c4ff1
  3. c907d9f70ae9a88e9853a7be7147af681daa55b1701987968a006ae8c9b42ea3
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.