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Degen Protocol
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Session against the house

Blackjack

ended Play money · a03c1ced43e199265a2a8b96b8bc0414

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,230 play
Returned
2,355 play
Bettor's net
+125 play
Return
105.61%

Results by hand

Final
Hands
200
played
Pace
21.0/min
overall 20.4/min
Biggest swing
-20
Seat 1 · hand 10

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

The hands

Newest first
#BetDealerHandsPaidChecked
50105♣Q♣J♥ 25J♦7♦ 17202× the bet
49108♠2♣ 105♣10♣9♦ 24 bust00× the bet
48106♥2♥2♠A♥ 21Q♣7♦ 1700× the bet
4710K♦2♦ 1210♥3♠10♦ 23 bust00× the bet
46107♣A♠ 188♣10♥ 18101× the bet
45103♥6♠7♥A♠ 175♦Q♦ 1500× the bet
44106♠6♣7♥ 19Q♠5♣ 1500× the bet
43103♥3♠8♣A♣9♠ 247♣5♣9♥ 21202× the bet
42106♣9♥9♣ 2410♦8♥ 18202× the bet
41106♠5♦J♦ 2110♣10♣ 2000× the bet
401010♦4♥Q♣ 246♣5♠9♦ 20 doubled404× the bet
3910A♠2♦Q♠2♦K♦ 252♥J♠8♥ 20202× the bet
3810A♠6♥ 177♦K♠ 17101× the bet
37104♥4♣2♣3♥K♦ 238♠K♦ 18202× the bet
3610A♣6♦ 17J♥3♦6♠ 19202× the bet
3510K♣2♠10♦ 223♥10♦5♦ 18202× the bet
3410J♦K♣ 20K♠2♦4♠A♣ 1700× the bet
33104♦9♥4♦ 17A♣5♥3♦ 19 doubled404× the bet
3210K♣8♦ 183♣7♠K♥ 20202× the bet
31108♠A♦ 19A♠9♣ 20202× the bet
30102♦6♣2♥A♠ 2110♦6♦ 1600× the bet
2910Q♦10♠ 20K♦K♦ 20101× the bet
28109♦A♦ 209♣6♦8♥ 23 bust00× the bet
271010♥9♠ 193♦3♦K♥A♦ 1700× the bet
2610A♠K♦ 219♣A♣ 2000× the bet
25107♦4♥Q♣ 2110♦6♣3♦ 1900× the bet
24104♥10♥2♥8♥ 247♣A♣2♠ 20 doubled404× the bet
23108♦7♣3♣ 187♠7♦A♠3♥ 18101× the bet
22102♠2♥3♥3♣8♣ 182♣9♥6♠ 17 doubled00× the bet
21106♠K♦A♠ 1710♥2♣ 1200× the bet
20104♠5♠ 9Q♦A♣ 21 blackjack252.5945× the bet
1910A♦4♣2♣ 174♣3♦2♠3♠4♦5♣ 21202× the bet
1810K♠5♣ 156♣4♥2♥K♣ 22 bust00× the bet
1710K♣Q♠ 206♥9♦ 15 surrendered50.5× the bet
16104♦8♣ 12A♥J♠ 21 blackjack252.5945× the bet
15104♥K♥Q♠ 247♠6♠ 13202× the bet
1410A♠5♠4♠ 202♣8♥5♣5♦ 20101× the bet
1310Q♥5♥A♥4♦ 203♠A♠7♠ 21202× the bet
12104♣7♦6♥ 178♦J♣ 18202× the bet
1110J♦9♦ 196♦5♥4♥ 15 doubled00× the bet
10106♥4♠Q♥ 205♣A♣A♦ 17 doubled00× the bet
910J♠8♥ 185♠K♦ 15 surrendered50.5× the bet
81010♠J♦ 209♥8♥ 1700× the bet
710J♥5♠Q♦ 257♦3♥10♦ 20202× the bet
610J♠2♦10♣ 222♣4♠A♠7♥A♠2♠ 17202× the bet
510A♥5♥ 16J♣4♦8♥ 22 bust00× the bet
41010♥7♦ 173♠2♠J♥6♦ 21202× the bet
3104♠3♠2♥10♠ 193♣4♣4♦K♥ 21202× the bet
210Q♥10♦ 2010♦Q♣ 20101× the bet
110Q♥8♦ 18Q♠3♣2♦A♠A♠ 1700× 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
6d0e571a61ea17ff8259e3116a577c2d0ca7bdd8430c9716fe1a156fc077bb34
Seed
1051de4781803a2e98a461e9755af1b15bffe78b0dd40834a82ce971968026dc SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
bb269bea4099a0da2bc306a2b51e57c9
Commitment
Batch 64,067, Merkle root 637ec9dbddcaf815c8a76e34bc87780b1f9b73a53fdb31511a5ead7f461d094c. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
Merkle path
  1. 69231aea7482f250e49beed38940e759a5354e53276b5a88019665a0d6cafd35
  2. e024a1f67b86710c44b7c34334907e2723ab71433e0cc26bd7595e426cf01387
  3. ded03c1410fc149d9e0d264f9e586b870c1ea19b46036d3537302c5b084b91e4
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.