Degen Protocol
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Session against the house

Blackjack

ended Play money · b2fb62c59de74e906a31b25868e80829

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,360 play
Returned
2,700 play
Bettor's net
+340 play
Return
114.41%

Results by hand

Final
Hands
200
played
Pace
20.1/min
overall 20.0/min
Biggest swing
+20
Seat 1 · hand 3

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

SeatNetRateStreak
gbb+340+170.0 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100105♣9♦ 14A♠J♥ 21 blackjack252.5945× the bet
9910J♣Q♦ 20J♦7♣ 1700× the bet
98102♦J♦J♣ 22Q♦2♣7♣ 19202× the bet
97104♥5♠8♠ 17A♣6♦A♠ 18 doubled404× the bet
96102♣J♦4♥4♣ 20Q♥3♠ 1300× the bet
95102♥6♠A♠ 19A♥2♥6♥ 19101× the bet
94104♠A♦5♦ 204♠2♥4♦10♦ 20101× the bet
9310K♠J♦ 209♦J♠ 1900× the bet
92106♠10♥8♣ 244♥7♠6♦ 17 doubled404× the bet
91102♥2♠7♣8♠ 19K♠6♥ 1600× the bet
90104♦9♥9♠ 2210♦K♥ 20202× the bet
89104♥Q♦2♦4♥ 206♣4♦5♣ 15 doubled6♦A♣4♥ 21 doubled404× the bet
88106♦7♠6♣ 196♦10♦ 1600× the bet
8710K♦2♠9♣ 21Q♣Q♣ 2000× the bet
86102♦J♥7♣ 19K♦4♦ 1400× the bet
85107♣3♦Q♠ 20A♣8♥ 1900× the bet
84106♠9♣4♣ 198♦2♣Q♣ 20 doubled404× the bet
8310A♠7♣ 183♦9♥3♦4♥ 19202× the bet
82109♥Q♥ 192♥8♦7♠ 17 doubled00× the bet
8110A♥7♦ 185♠3♥9♠ 1700× the bet
801010♠3♥ 134♥8♥3♥8♦ 23 bust00× the bet
79106♠8♥Q♦ 246♦K♠ 16202× the bet
78103♠2♣Q♥9♠ 247♠3♦10♣ 20 doubled404× the bet
77104♥3♣8♦8♠ 23K♦J♣ 20202× the bet
7610K♦J♣ 206♦10♠ 16 surrendered50.5× the bet
7510K♦10♣ 2010♠5♣ 15 surrendered50.5× the bet
7410Q♦K♠ 207♥8♠ 15 surrendered50.5× the bet
73102♣10♦A♦K♦ 236♠K♣ 16202× the bet
72105♦3♠5♥K♣ 236♣9♣ 15202× the bet
71107♦Q♣ 174♦2♣J♣5♣ 21202× the bet
70102♦10♣8♦ 20J♥10♥ 20101× the bet
691010♥K♦ 209♥7♦ 16 surrendered50.5× the bet
6810J♣5♠ 154♦3♦7♣10♠ 24 bust00× the bet
67108♣6♦2♦K♥ 262♦J♣A♦2♥5♦ 20202× the bet
661010♠3♣3♥J♦ 264♠7♣Q♥ 21 doubled404× the bet
65102♠J♠ 126♣A♠5♠10♦ 22 bust00× the bet
64106♠9♠A♦3♥ 19Q♥Q♥ 20202× the bet
63103♠9♠5♠ 178♣3♠3♦ 14 doubled00× the bet
62109♥10♣ 194♦4♠3♥2♠8♠ 21202× the bet
61103♣3♦A♦ 172♣7♥6♠ 15 doubled00× the bet
60109♥8♥ 176♠J♥ 16 surrendered50.5× the bet
5910Q♠K♥ 204♥5♦Q♦ 1900× the bet
5810Q♠A♦ 214♣8♠ 1200× the bet
57106♣7♦8♦ 215♦2♥A♠ 1800× the bet
56102♣5♦ 7A♣J♦ 21 blackjack252.5945× the bet
5510A♦J♣ 213♦A♦ 1400× the bet
54106♥3♥2♥4♠Q♥ 25J♣9♠ 19202× the bet
53105♦3♣5♠7♠ 202♦6♠6♥ 1400× the bet
52107♣6♣4♦ 174♣A♣6♣ 21202× the bet
51108♦4♣2♦J♥ 24J♣J♣ 20202× 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
e38852428a0629d9aad202f94b67aa030eccd07e2c8382c6d7b514df27d29b4c
Seed
a1abe950f6877fa4eb5180d68b0caa7d4de0e061708a80914be42b1a364cc11f SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
5db464d273da71bcbad107464fcedfeb
Commitment
Batch 68,351, Merkle root 840f8a28e1a09b4d8b9d091d6502c27efd5292844f092d7c84c1b80f294fc62f. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 63c980a9e5a8a1a41fcc60b111a06af670d2dc1693b9720806a0044d509dcec5
  2. 27c5a4546af505d5ed25c2606faed69c4f87655a470df03bae16f8082bed91f1
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.