Degen Protocol
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Session against the house

Blackjack

ended Play money · 0c730c9e999913ffbeafd5e1ba9328da

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,320 play
Returned
2,440 play
Bettor's net
+120 play
Return
105.17%

Results by hand

Final
Hands
200
played
Pace
18.1/min
overall 19.7/min
Biggest swing
+30
Seat 1 · hand 73

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

SeatNetRateStreak
gbb+120+60.0 play/100lost 4

Last hands

  1. 200Even0
  2. 199Even0
  3. 198Even0
  4. 197Even0
  5. 196Seat 1+20
  6. 195Even0
  7. 194Even0
  8. 193Even0
  9. 192Seat 1+15
  10. 191Even0
  11. 190Even0
  12. 189Seat 1+10

The hands

Newest first
#BetDealerHandsPaidChecked
50104♥6♠6♣J♥ 262♣3♦2♣6♠ 13202× the bet
491010♣10♦ 203♣8♣2♥ 13 doubled00× the bet
4810K♠A♠ 214♦9♦ 1300× the bet
4710Q♠5♠8♠ 23Q♦4♥7♠ 21202× the bet
4610A♥2♦3♦10♥K♠ 26J♦J♠ 20202× the bet
451010♥K♦ 205♦2♦9♠A♥ 1700× the bet
44105♠5♦Q♥ 202♥9♥Q♥ 21 doubled404× the bet
43107♠5♣Q♠ 222♠9♣2♠ 13 doubled404× the bet
4210A♠A♠ 1210♣6♠ 16 surrendered50.5× the bet
41108♣J♣ 18K♦5♣8♣ 23 bust00× the bet
4010A♦9♦ 206♣K♣ 16 surrendered50.5× the bet
391010♦6♦ 167♥A♠4♠J♠ 22 bust00× the bet
38106♥A♠ 179♠4♣ 1300× the bet
3710Q♣A♣ 2110♦9♦ 1900× the bet
361010♥8♣ 182♠Q♥5♥ 1700× the bet
3510J♣6♣4♠ 20A♥7♦10♦ 1800× the bet
3410A♠8♥ 19A♦Q♣ 21 blackjack252.5945× the bet
33102♥6♥3♦3♣8♥ 22J♣Q♣ 20202× the bet
321010♥6♦7♦ 239♥Q♣ 19202× the bet
31109♣3♠J♠ 224♣6♠Q♠ 20 doubled404× the bet
3010A♦3♥ 143♣J♥Q♦ 23 bust00× the bet
29105♣10♥8♣ 2310♥K♣ 20202× the bet
28104♠J♠6♣ 205♦Q♥ 1500× the bet
2710J♣Q♦ 2010♠2♠5♠ 1700× the bet
26109♦3♣10♥ 22J♣J♥ 20202× the bet
25109♥2♠4♥2♣ 17J♠7♠ 17101× the bet
24104♣5♦10♦ 195♠6♠4♦ 15 doubled00× the bet
23103♠6♣Q♣ 195♥10♣ 1500× the bet
2210K♠5♥J♥ 2510♥8♦ 18202× the bet
21104♥8♣6♣ 18Q♠7♠ 1700× the bet
20102♦K♠6♦ 182♣3♥4♠Q♣ 192♠6♠3♥9♠ 20404× the bet
19105♦6♦2♥J♣ 238♥6♠ 14202× the bet
18104♣3♥K♥ 177♥J♦ 17101× the bet
1710Q♥7♣ 179♥2♣Q♦ 21 doubled404× the bet
16104♣K♠9♦ 23A♥8♠ 19202× the bet
1510A♥7♥ 182♣K♦A♠3♣9♦ 25 bust00× the bet
1410A♣8♣ 1910♠4♦K♥ 24 bust00× the bet
1310J♥A♣ 216♠A♥ 1700× the bet
12105♦J♦ 15A♠K♣ 21 blackjack252.5945× the bet
11107♦5♥6♥ 18Q♦8♦ 18101× the bet
1010Q♦4♥7♦ 214♥8♣9♥ 21101× the bet
910Q♠4♦7♥ 217♣A♥5♣5♥ 1800× the bet
8107♣Q♠ 178♦2♦9♥ 19 doubled404× the bet
7108♠2♠J♣ 20A♦8♠ 1900× the bet
610K♣J♦ 205♣2♠2♥4♠J♥ 23 bust00× the bet
510A♠3♦ 146♥K♠ 16 surrendered50.5× the bet
4108♠9♠ 17Q♣Q♥ 20202× the bet
310J♦2♦ 123♥2♣9♣9♣ 23 bust00× the bet
210K♥9♠ 193♠A♠3♠9♦7♣ 23 bust00× the bet
11010♠6♣2♥ 18J♦7♥ 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
e9f027c2bf7b134f3392b1bffa09266258743dc72176be1b36bf5312ae557a49
Seed
5dcc33866f85d389e580c8cb6e08ad84adb1693b89be432e84fea8a98965effd SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
828da0eae5ea89190d7d5883cce9a6c3
Commitment
Batch 65,273, Merkle root 868af9546e077be34d3734d576b39b56159d7b7124d9d87a0f83c4d2a2983ff4. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. c810ae0f7287fad417eb28f886879b835e99caa85c92ad9e795b248359bf6e06
  2. 1612b3c44dabc0761c3b2db0b10939d324c6b6c2a128d87363f2ca1d051b2930
  3. 4a92e1a410b4a7f0529f1734e0a837d2bc18480c894f0315dba30e4b62c0bd29
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.