Degen Protocol
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Session against the house

Blackjack

ended Play money · 503c4f6823d1376531975a29527a6fc9

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,240 play
Returned
2,085 play
Bettor's net
-155 play
Return
93.08%

Results by hand

Final
Hands
200
played
Pace
20.3/min
overall 20.2/min
Biggest swing
+30
Seat 1 · hand 39

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

SeatNetRateStreak
gbb-155-77.5 play/100lost 8

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
5010K♦2♠5♥ 17A♣5♦A♥2♣ 19202× the bet
4910J♠2♠9♥ 212♣8♥8♥ 1800× the bet
48104♠Q♠ 14Q♠A♣ 21 blackjack252.5945× the bet
47105♠2♣Q♣ 174♣7♠9♣ 20 doubled404× the bet
46107♠2♠4♠A♦7♦ 212♥8♦3♥ 13 doubled00× the bet
45108♠2♥K♦ 203♦10♠5♦ 1800× the bet
4410Q♥6♠3♣ 193♦Q♥5♦ 1800× the bet
4310J♣A♦ 21Q♥7♥ 1700× the bet
42109♣K♠ 19Q♣K♣ 20202× the bet
41104♥K♥8♠ 22J♠J♥ 20202× the bet
40109♠Q♦ 19Q♠7♠ 1700× the bet
39104♥4♦4♣K♥ 226♥5♥10♣ 21 doubled6♠7♥ 13606× the bet
38109♦5♣8♠ 22Q♣K♦ 20202× the bet
3710A♦9♣ 20K♦3♥9♥ 22 bust00× the bet
36108♦Q♥ 183♠4♣6♠2♦5♦ 20202× the bet
35108♦10♣ 189♥Q♥ 19202× the bet
34105♥J♠Q♣ 255♦10♠ 15202× the bet
33109♣4♥8♥ 21K♥10♥ 2000× the bet
32106♥5♣5♣7♦ 2310♥10♦ 20202× the bet
311010♥5♣ 15J♦6♠ 16 surrendered50.5× the bet
30107♥9♣ 164♦3♠3♣3♠A♦2♣10♥ 26 bust00× the bet
29105♣10♥Q♦ 25K♠Q♥ 20202× the bet
28104♣6♥4♠2♠4♣ 208♥A♠ 1900× the bet
27109♥J♦ 192♥Q♠K♦ 22 bust00× the bet
2610A♦5♦ 16K♣3♣3♠Q♥ 26 bust00× the bet
25107♣4♣ 118♣7♥Q♦ 25 bust00× the bet
24107♣9♦ 1610♥4♣10♥ 24 bust00× the bet
231010♣K♦ 20J♣6♥ 16 surrendered50.5× the bet
22106♣8♦5♣ 195♣9♦ 1400× the bet
21106♣4♥3♠5♦ 183♥K♦ 1300× the bet
20104♣9♦3♣7♦ 236♥3♦4♣ 13 doubled404× the bet
191010♠7♠ 17A♥9♥ 20202× the bet
181010♦A♣ 21Q♣3♦ 1300× the bet
1710A♦7♠ 18A♦J♣ 21 blackjack252.5945× the bet
16107♣10♣ 174♣3♥7♥4♠ 18202× the bet
15104♥A♦8♣6♦ 199♠Q♦ 19101× the bet
1410K♦4♥A♦3♦ 18Q♦7♥ 1700× the bet
1310K♦7♦ 172♥4♥5♣9♠ 20202× the bet
12105♠8♥K♦ 235♦10♥ 15202× the bet
11106♥2♠K♣ 182♣6♣3♣8♣ 19202× the bet
10105♣J♦6♠ 217♣5♦ 1200× the bet
91010♦5♣10♠ 253♦J♥A♠5♥ 19202× the bet
8104♥7♣Q♥ 2110♥10♥ 2000× the bet
7109♠K♦ 195♠J♣2♠ 1700× the bet
610Q♥10♠ 2010♠6♣ 16 surrendered50.5× the bet
510A♦8♠ 194♦10♥2♣7♥ 23 bust00× the bet
4109♣7♠ 16J♠6♥ 16 surrendered50.5× the bet
3103♦4♦4♣9♦ 206♠7♦ 1300× the bet
210J♦K♦ 20A♣5♣4♣ 20101× the bet
11010♣Q♦ 209♠3♣7♥ 1900× 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
5316281928f7da9abdd3e47f68ecc38035e8ec44086b163a8b00ff079466b404
Seed
cc334ff7e7cccc33ed6ea24a4216826ef10cb491dfaa1e564dd5b91092d376b5 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
1cedb6be5eff0124984cab39585c349e
Commitment
Batch 65,631, Merkle root 0db5eae2356008cf55c6d4486b5d0ec6a46d889fdc204aebb84ec275d780f223. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. e858fa5c938a70ce79dbaa348b2336f74717918c864333deea6af57f34980c82
  2. d76f473f30de02b4ffa45cc0f7e5c657d90f5dee5337b507b69104f821c536e5
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.