Degen Protocol
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Session against the house

Blackjack

ended Play money · 91c2c1bf5d91d05ed08552d356d42ab4

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,250 play
Returned
2,245 play
Bettor's net
-5 play
Return
99.78%

Results by hand

Final
Hands
200
played
Pace
19.0/min
overall 20.4/min
Biggest swing
-30
Seat 1 · hand 70

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

SeatNetRateStreak
gbb-5-2.5 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100107♥6♦10♥ 23A♦7♠ 18202× the bet
9910Q♥A♣ 219♥K♠ 1900× the bet
98109♠5♣ 1410♣2♣3♠9♦ 24 bust00× the bet
9710A♠A♦ 12K♠5♥J♠ 25 bust00× the bet
96107♦8♣ 158♦5♠9♠ 22 bust00× the bet
9510J♥K♣ 20K♦3♣A♣8♦ 22 bust00× the bet
9410J♣8♥ 183♥5♦9♦ 1700× the bet
93108♠K♦ 185♦Q♣7♠ 22 bust00× the bet
92102♣9♥J♦ 214♣7♥Q♠ 21 doubled202× the bet
9110K♣K♣ 205♥2♣5♥Q♥ 22 bust00× the bet
90109♦5♦ 146♦6♣10♣ 22 bust00× the bet
89103♣5♠3♦J♦ 218♠A♣ 1900× the bet
88106♣3♣ 9A♠J♠ 21 blackjack252.5945× the bet
87104♥4♠6♠Q♣ 247♦4♦7♦ 18 doubled404× the bet
8610A♣9♣ 20J♠J♥ 20101× the bet
85107♠5♣ 122♣4♠7♦2♥10♦ 25 bust00× the bet
84106♣5♦4♥9♣ 243♠5♠8♣ 16202× the bet
83105♣J♥A♦2♦ 182♦10♣ 1200× the bet
8210K♠A♦ 213♦2♣ 500× the bet
81103♦A♦9♠9♣ 22J♠6♣ 16202× the bet
80107♦9♦4♦ 204♦4♦10♦ 1800× the bet
7910K♦3♠4♥ 17K♣8♠ 18202× the bet
781010♦9♠ 1910♥J♥ 20202× the bet
77107♥Q♥ 179♥J♦ 19202× the bet
76105♦8♣5♣ 182♠Q♣ 1200× the bet
75103♣A♣2♦3♣ 19A♣3♣2♦7♣ 1300× the bet
74104♣6♣J♠ 205♥6♠7♦ 18 doubled00× the bet
73107♥9♣5♦ 2110♦6♦2♠ 1800× the bet
7210A♦A♦ 123♥2♦4♣2♠3♦K♠ 24 bust00× the bet
71104♠7♠4♦10♠ 255♥Q♥ 15202× the bet
70102♦8♠Q♣ 207♠Q♦ 177♦K♣ 177♦2♥7♣ 167♣5♦8♥ 20101× the bet
69109♥7♣ 16J♦4♠A♣8♥ 23 bust00× the bet
68104♦4♠J♣ 185♥K♠ 1500× the bet
67104♦7♠5♣K♠ 266♦2♣A♥ 19202× the bet
661010♣3♥J♥ 238♥6♠2♠4♦ 20202× the bet
6510J♣8♣ 182♦4♦4♥7♣ 1700× the bet
64104♥K♥2♥8♣ 247♦8♣ 15202× the bet
6310A♥7♠ 1810♥7♥ 1700× the bet
62106♠3♠3♠2♦8♠ 2210♣2♣ 12202× the bet
61108♣9♦ 17Q♦4♥6♠ 20202× the bet
601010♠9♦ 197♥7♥4♠ 1800× the bet
5910Q♦J♦ 2010♦9♠ 1900× the bet
5810Q♥7♥ 178♦4♥7♥ 198♣9♣ 17303× the bet
57103♠3♠8♥5♦ 198♥3♣5♥ 16 doubled00× the bet
56107♣K♠ 174♦J♠10♠ 24 bust00× the bet
55104♦5♥Q♥ 196♣Q♥ 1600× the bet
54104♦6♥10♦ 20J♥J♠ 20101× the bet
53107♣2♠K♣ 193♣10♠6♣ 19101× the bet
52106♣J♦A♦ 174♣6♦6♦ 16 doubled00× the bet
51104♠8♥A♦10♦ 2310♣9♠ 19202× 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
b756d7e2fea3d4aa81aa911276e8377b6746c99b683949de50dbadf7e9d48755
Seed
5e843b30663cd064b8f52ef7b0d9fd181f1948fad2af026908ca217c7f36ddd0 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
b08f87e80d3a4c8ea1862f8421054daf
Commitment
Batch 72,511, Merkle root 5547f4744541a26bb8648763913db1bc82700bd35211ee8371138c91d91ef238. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 796417d5484bdcbd641150c1488e878d9d0fb059bbc0d8389b70ed459b00f853
  2. 63b2b611496246b8c45ceebc4cb90c15ffd4e06eb4cb10b95b7fb9f12856a8ca
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.