Degen Protocol
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Session against the house

Blackjack

ended Play money · 5685c15d420306a9370e6a91b042c965

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,180 play
Returned
2,080 play
Bettor's net
-100 play
Return
95.41%

Results by hand

Final
Hands
200
played
Pace
18.5/min
overall 20.2/min
Biggest swing
+20
Seat 1 · hand 1

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

SeatNetRateStreak
gbb-100-50.0 play/100lost 3

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100106♠6♦J♥ 22Q♦10♦ 20202× the bet
99104♥Q♠K♣ 243♣A♦9♣ 13202× the bet
9810K♦2♦ 126♥9♥ 15 surrendered50.5× the bet
97102♣J♦5♠ 17Q♠7♣ 17101× the bet
96105♦3♥Q♠ 188♠10♦ 18101× the bet
9510A♣8♥ 192♣5♦2♦10♠ 19101× the bet
94107♣5♠K♠ 225♥Q♥6♠ 21202× the bet
931010♣7♦ 17A♥3♠7♥ 21202× the bet
92108♥9♣ 179♣2♥J♦ 21 doubled404× the bet
91109♥10♠ 193♥10♣4♠ 1700× the bet
9010Q♥2♦2♦Q♠ 24J♥10♣ 20202× the bet
8910K♣10♥ 204♠4♥8♦J♣ 26 bust00× the bet
8810J♣6♦ 16Q♣4♥8♥ 22 bust00× the bet
87105♣5♥9♠ 195♦8♦ 1300× the bet
86109♣Q♥ 198♠J♠ 1800× the bet
8510Q♥Q♥ 203♦K♥J♠ 23 bust00× the bet
8410Q♥Q♠ 207♥J♣ 1700× the bet
8310Q♦K♦ 20A♦4♦J♠6♦ 21202× the bet
82105♠8♦7♥ 2010♣3♣ 1300× the bet
811010♠10♠ 20J♥8♠ 1800× the bet
8010A♣Q♣ 215♦5♦ 1000× the bet
791010♣K♦ 20K♠2♠8♥ 20101× the bet
78106♦K♥6♦ 22A♣3♥6♠ 20 doubled404× the bet
7710A♠7♣ 182♣K♥J♣ 22 bust00× the bet
76109♥7♠A♥ 17K♦7♠ 17101× the bet
75102♦2♣A♥7♥7♠ 195♥10♠ 1500× the bet
74107♣K♣ 174♥6♣8♠ 18 doubled404× the bet
73106♦Q♦A♣ 174♥10♦ 1400× the bet
72102♠10♣4♠7♦ 234♠A♥10♣ 15202× the bet
7110K♦2♠8♠ 20J♠Q♦ 20101× the bet
7010K♥Q♥ 20J♥4♠8♠ 22 bust00× the bet
6910A♥6♥ 17A♦7♠9♦ 17101× the bet
6810J♥7♣ 175♥10♥ 15 surrendered50.5× the bet
67107♥10♥ 178♠10♥ 18202× the bet
66104♥7♣8♦ 195♠8♠ 1300× the bet
651010♣8♦ 18A♥Q♥ 21 blackjack252.5945× the bet
64105♣J♦2♥ 17Q♠8♠ 18202× the bet
6310Q♥3♠ 13Q♥2♥10♥ 22 bust00× the bet
6210Q♥10♥ 209♥A♠ 20101× the bet
61102♦A♥10♦9♥ 225♥6♥A♦ 12 doubled404× the bet
6010A♥3♠ 143♠10♣3♦Q♣ 26 bust00× the bet
591010♠10♠ 207♦9♠ 16 surrendered50.5× the bet
58106♥7♥10♦ 2310♠2♥ 12202× the bet
57106♦9♣6♦ 21Q♣4♥ 1400× the bet
56109♣A♣ 205♣7♦Q♦ 22 bust00× the bet
55102♥3♠3♠8♠9♣ 255♠5♦5♣ 15 doubled404× the bet
54107♥K♠ 173♣10♦6♠ 19202× the bet
5310Q♥A♠ 21K♣5♠ 1500× the bet
5210A♠Q♣ 21A♠J♦ 21 blackjack101× the bet
5110K♦2♠5♦ 173♣8♦10♣ 21 doubled404× 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
6314e2fea0030b4a0835727a7c55ba82cf49c11ecd570a7488911e3f161bd1c6
Seed
baf210e6846af111f47f473c93a10a91f363dba90733b252a616e25827cbbb1b SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
380f369459369b409f213eae47116742
Commitment
Batch 66,290, Merkle root bdf0e6ed49cfb37a1b4d67573f53417c162f65b1aaee8d8b7e1cd213bedf606d. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 96e4d5c2105d421035321e6adbd097c89713b9b242eedfc4d07c9e0b777a1dfe
  2. 30ebe13b580a8456e0d091c01f492f99f13cc9bdbbb95d2ffaadb547f9e12bf2
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.