Degen Protocol
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Session against the house

Blackjack

ended Play money · 47cc5711d23be11df2c39c6945aa77ee

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,300 play
Returned
2,270 play
Bettor's net
-30 play
Return
98.70%

Results by hand

Final
Hands
200
played
Pace
20.1/min
overall 20.3/min
Biggest swing
-40
Seat 1 · hand 33

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

SeatNetRateStreak
gbb-30-15.0 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50106♦5♠3♠5♣ 199♠6♣ 1500× the bet
4910Q♦4♦3♥ 179♣10♣ 19202× the bet
48103♠2♣9♦2♥9♠ 257♥2♥Q♥ 19 doubled404× the bet
4710K♣9♠ 196♠K♠ 16 surrendered50.5× the bet
4610A♠K♦ 213♣2♦ 500× the bet
45107♦A♠ 1810♠8♥ 18101× the bet
44108♠10♠ 186♠3♦4♣5♦ 18101× the bet
43104♣K♥2♠9♠ 25J♣K♥ 20202× the bet
42102♠7♠A♥ 20Q♠5♥ 1500× the bet
41106♣2♦6♠8♦ 227♥6♣ 13202× the bet
40102♣4♦9♦A♥Q♥ 264♣A♠2♣9♥ 16202× the bet
3910Q♣A♦ 217♥5♠ 1200× the bet
38102♦2♠4♣A♠ 192♥6♣8♠ 1600× the bet
3710Q♥7♦ 177♣5♦6♣ 18202× the bet
361010♥9♥ 197♥7♦5♣ 19101× the bet
35105♣8♦A♠K♠ 246♥3♣A♣ 20 doubled404× the bet
34103♠A♥J♣10♠ 243♥Q♦ 13202× the bet
33105♥5♣9♠ 193♣6♠7♣ 16 doubled3♠Q♦ 133♥2♣Q♦ 1500× the bet
3210Q♦7♥ 176♥Q♥ 16 surrendered50.5× the bet
31108♦4♦ 123♠K♠9♦ 22 bust00× the bet
3010A♦J♠ 213♥3♠ 600× the bet
29104♣4♦A♠ 197♥9♣ 1600× the bet
28103♣K♣2♥10♦ 25K♠10♥ 20202× the bet
27106♠3♠ 9K♦A♣ 21 blackjack252.5945× the bet
26107♥2♦8♦ 173♥K♣8♥ 21202× the bet
2510Q♦K♥ 204♣9♣5♥ 1800× the bet
24103♦7♥Q♦ 204♠4♦5♠ 1300× the bet
2310J♣2♠6♦ 189♠8♥ 1700× the bet
22109♣A♠ 202♣A♣K♣A♦A♦10♠ 25 bust00× the bet
21103♦5♥10♥ 187♣4♣2♣ 13 doubled00× the bet
2010K♠J♦ 20K♦10♦ 20101× the bet
19103♠4♣3♣J♥ 20K♦3♠ 1300× the bet
181010♥A♠ 2110♣A♦ 21 blackjack101× the bet
17108♠8♦ 16A♦Q♣ 21 blackjack252.5945× the bet
16106♥10♦Q♥ 264♦10♠ 14202× the bet
15104♥J♥3♦ 177♦10♥ 17101× the bet
14109♥8♠ 176♥6♣5♠ 17101× the bet
131010♣7♣ 179♦J♠ 19202× the bet
12102♦A♠8♠ 219♠6♣ 1500× the bet
11109♣4♠ 136♣K♦ 16 surrendered50.5× the bet
1010A♥K♦ 212♠7♠ 900× the bet
9103♣J♠9♠ 222♦Q♣8♦ 20202× the bet
8106♣2♣3♠9♣ 2010♥9♥ 1900× the bet
710K♠4♣J♥ 247♣K♦ 17202× the bet
610J♥7♠ 1710♦K♦ 20202× the bet
5102♣10♠2♥3♦ 179♠5♥ 1400× the bet
4103♥A♦J♥4♥ 184♣4♣2♣2♥8♣ 20202× the bet
31010♣5♥3♠ 188♥6♠3♥ 1700× the bet
21010♦5♠ 154♠J♣A♥J♠ 25 bust00× the bet
1104♣A♦4♠ 19K♦3♦ 1300× 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
4cc5fd5c96cc013e4a4efc374f7e51e9aada74dfdd0f6ab1b4473c077b4f19f2
Seed
3d63f516bd01292541dde26d293732d49421c66e9cf73dab89a6da6e3f233b12 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
40f551362e59cde061cfc1a572e29d19
Commitment
Batch 72,161, Merkle root 5023f09e0262e1ebb8f6d11815e64a2f02f504a1b28efa0c3edef66805b70e81. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 3d0b62d5d2320f9f058ee98a95b5a62ca75ceecaff9ee43e3d799370a44287db
  2. e3e6b846f5cbd0829c57ec0865976029c623ffff930fd41511ee452d34e38c18
  3. 2844bea095c9b5055b24a8ff8b17a68291a0fcc6b316d0eb70013c30ea01d8e9
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.