Degen Protocol
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Session against the house

Blackjack

ended Play money · 9871b56790207c134799ec2af191c8b3

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,230 play
Returned
2,250 play
Bettor's net
+20 play
Return
100.90%

Results by hand

Final
Hands
200
played
Pace
20.9/min
overall 20.9/min
Biggest swing
-20
Seat 1 · hand 9

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

SeatNetRateStreak
gbb+20+10.0 play/100lost 3

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
20010K♦4♦7♦ 216♥8♣6♣ 2000× the bet
199103♦6♥K♦ 197♦9♠ 1600× the bet
198107♠7♣5♣ 198♣4♣5♦ 1700× the bet
197103♥4♣10♠ 1710♦K♦ 20202× the bet
196106♠3♥K♣ 194♣7♥J♠ 21 doubled404× the bet
1951010♠5♠A♠5♦ 21Q♦Q♦ 2000× the bet
194103♦5♠4♥A♠10♦ 23J♠9♠ 19202× the bet
19310A♠K♠ 215♣10♣ 1500× the bet
192108♠6♠8♠ 222♥Q♠6♦ 18202× the bet
191108♣8♣2♣ 18A♦9♦ 20202× the bet
1901010♥8♣ 184♥8♣6♣ 18101× the bet
18910A♣2♣7♣ 20Q♥10♥ 20101× the bet
188107♠10♦ 17J♥2♣10♥ 22 bust00× the bet
18710Q♥6♥Q♥ 262♦9♠4♥ 15 doubled404× the bet
18610A♦6♦ 176♥J♦ 16 surrendered50.5× the bet
18510K♥K♦ 20A♥J♣ 21 blackjack252.5945× the bet
184104♦7♠K♥ 212♦9♣6♣ 17 doubled00× the bet
183108♥10♣ 183♣6♣8♠ 1700× the bet
1821010♥8♠ 189♥5♠6♥ 20202× the bet
181103♠9♦2♦2♣7♣ 233♦J♥ 13202× the bet
180108♣2♠ 10A♥K♥ 21 blackjack252.5945× the bet
179104♠K♦7♣ 21J♣Q♠ 2000× the bet
1781010♥2♣4♣J♠ 26A♦5♠Q♣3♦ 19202× the bet
177106♠5♣6♣ 178♥10♣ 18202× the bet
176106♠7♠J♠ 2310♦6♣ 16202× the bet
175106♠8♣8♣ 223♠10♣ 13202× the bet
17410K♥5♥ 152♠K♦K♥ 22 bust00× the bet
17310K♠Q♣ 20A♣2♠6♠ 1900× the bet
172103♣9♦7♣ 19A♣5♣A♣5♥4♦ 1600× the bet
17110Q♠3♣Q♦ 239♣9♦ 18202× the bet
17010K♠5♣ 15J♣5♠ 15 surrendered50.5× the bet
1691010♣3♦10♠ 238♥Q♥ 188♥4♥K♥ 22 bust202× the bet
16810A♦Q♥ 21K♥5♣ 1500× the bet
16710A♥4♥J♥6♠ 2110♠J♥ 2000× the bet
166105♣J♣5♠ 2010♠2♥ 1200× the bet
165107♦8♦4♥ 199♦9♣ 1800× the bet
16410K♦6♦ 164♥A♣9♠Q♣ 24 bust00× the bet
163104♣4♥8♠6♦ 227♣3♣3♣ 13 doubled404× the bet
162105♦10♦10♣ 252♦9♦J♠ 21 doubled404× the bet
161104♠10♣Q♠ 2410♦J♦ 20202× the bet
16010K♠5♥Q♣ 2510♣J♦ 20202× the bet
159107♣5♣4♥K♦ 26J♣2♥8♦ 20202× the bet
158107♠10♥ 17K♣J♠ 20202× the bet
15710K♥K♥ 205♣8♣2♠8♦ 23 bust00× the bet
156104♠7♠10♠ 212♠Q♦ 1200× the bet
15510A♠10♣ 216♥7♦ 1300× the bet
15410J♠9♦ 192♦2♠10♦8♣ 22 bust00× the bet
153106♣10♥8♣ 246♥5♥A♣ 12 doubled404× the bet
152102♣3♥J♥10♥ 258♦J♥ 18202× the bet
151106♠9♣A♣2♦ 188♥7♥ 1500× 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
918e65203cd25a0307d0a4f069a996d5c8e7529982f4be080d365a23e763898d
Seed
c5bbd9f443977d3899695450eca99df1a6a8707c2c879977ace8296a45f392cf SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
86ffaf723ed41eed73f32a1c06c35548
Commitment
Batch 72,581, Merkle root da7739cc190ba4e94b068d41efd0d661a3ea0d72a890d47716f189b9ceb2d163. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 775a3c9b11a393004a80990fc62d2f052a63d499519ca3469f027482d20a0d59
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.