Degen Protocol
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Session against the house

Blackjack

ended Play money · a32b5f9bc8b630e4fde9115b83aa056d

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,300 play
Returned
2,250 play
Bettor's net
-50 play
Return
97.83%

Results by hand

Final
Hands
200
played
Pace
18.4/min
overall 20.4/min
Biggest swing
-30
Seat 1 · hand 120

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

SeatNetRateStreak
gbb-50-25.0 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50103♥K♣A♣2♥6♥ 22A♠6♥8♠ 15 doubled404× the bet
49109♥A♣ 208♦A♥ 1900× the bet
48102♦Q♦7♦ 19K♥K♠ 20202× the bet
47107♦9♠K♦ 2610♠2♦8♣ 20202× the bet
4610A♦10♣ 21J♥6♥ 1600× the bet
45108♥10♣ 1810♦J♦ 20202× the bet
4410K♦A♣ 2110♥3♠ 1300× the bet
43105♣6♣6♥ 178♠10♣ 18202× the bet
42105♠3♣8♦Q♥ 2610♠4♦ 14202× the bet
41109♦J♦ 19Q♥K♦ 20202× the bet
4010A♥8♣ 1910♥4♠8♣ 22 bust00× the bet
39102♣3♠8♠6♣ 196♠8♣ 1400× the bet
38105♣9♣9♦ 237♠9♠ 16202× the bet
3710K♠A♣ 218♦5♥ 1300× the bet
36102♣7♦8♥ 17J♦2♦2♥ 1400× the bet
35104♠10♦Q♦ 244♥Q♦ 14202× the bet
3410A♥Q♥ 215♦4♥ 900× the bet
3310Q♦7♠ 1710♠9♦ 19202× the bet
3210Q♣4♦ 148♣4♣3♣Q♦ 25 bust00× the bet
31108♦J♥ 186♦6♦4♣8♦ 24 bust00× the bet
3010A♠5♦ 169♣5♦K♦ 24 bust00× the bet
29106♠6♥4♠6♥ 222♠7♦10♥ 19 doubled404× the bet
2810Q♠3♦ 133♣3♥9♠A♦7♠ 23 bust00× the bet
27105♠3♣J♥ 18J♠7♣ 1700× the bet
2610Q♠J♠ 20A♥7♣J♦ 1800× the bet
2510Q♥Q♦ 204♣8♥Q♦ 22 bust00× the bet
241010♣5♥ 155♠9♠10♦ 24 bust00× the bet
23108♦10♥ 1810♠10♦ 20202× the bet
2210Q♠3♣3♦K♦ 2610♥Q♠ 20202× the bet
21103♣8♠J♦ 21A♦4♣4♦ 1900× the bet
20106♦8♥Q♥ 24J♣9♣ 19202× the bet
19104♠7♦6♣ 177♥3♥J♦ 20 doubled404× the bet
18106♣3♣10♠ 19Q♠10♥ 20202× the bet
17104♣A♦3♠ 18K♦8♥ 18101× the bet
16108♦5♦6♦ 19Q♥10♣ 20202× the bet
15105♥J♥Q♦ 253♥6♥9♥ 18 doubled404× the bet
14103♠3♣ 6Q♦A♣ 21 blackjack252.5945× the bet
1310Q♠2♠4♥Q♦ 26Q♦K♦ 20202× the bet
12106♦8♣J♥ 24K♥3♣ 13202× the bet
111010♦J♦ 207♦3♥10♣ 20101× the bet
1010J♥Q♦ 203♥10♣9♦ 22 bust00× the bet
9102♣10♦A♥6♦ 19Q♠6♦ 1600× the bet
810K♣K♣ 206♣3♦5♥J♣ 24 bust00× the bet
71010♥6♣9♠ 254♥7♥A♥ 12 doubled404× the bet
6102♥Q♦Q♠ 22A♦5♥ 16A♠2♠ 13404× the bet
5104♦A♣4♣ 195♥9♦ 1400× the bet
4106♦4♣10♠ 205♦K♦ 1500× the bet
3107♦9♠8♠ 244♦10♠3♠ 17202× the bet
210K♣K♥ 20K♠9♠ 1900× the bet
110Q♣J♠ 203♣9♥J♣ 22 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
5ec9408ac76fddc0261db6450775418272f18ca0596f94c06b1b93718b8d4da2
Seed
277a6ef03aa80288f7b6782172ecb2d903a40540dd3a6f617c3d351280fbdb36 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
167383fa91e6a1fed32b3238e14b3e9d
Commitment
Batch 65,864, Merkle root 4a2dbea1567337a824feb8a230d7b568140719932589ab361ca7092d276e01fc. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 2f2aaadbd0d92800a86807a446a59de41ced84e1b4010560fc18b12bc025bac8
  2. 30088849dab4aea3f5592806ac514b6ef19716837d6ef2eeeab59227ad98cdd6
  3. 7d05c06abd74d6b5cc9c698b23a02356bab8f9f135f97988522805b543825a51
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.