Degen Protocol
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Session against the house

Blackjack

ended Play money · 4d7fb0181f0bc80486ae0191ae1ead3a

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,240 play
Returned
2,345 play
Bettor's net
+105 play
Return
104.69%

Results by hand

Final
Hands
200
played
Pace
20.1/min
overall 19.9/min
Biggest swing
+20
Seat 1 · hand 12

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

SeatNetRateStreak
gbb+105+52.5 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100107♥10♥ 17Q♦3♦J♠ 23 bust00× the bet
9910J♥7♠ 17J♠5♠ 15 surrendered50.5× the bet
981010♠10♥ 208♠3♣J♦ 21 doubled404× the bet
9710J♥7♦ 179♣2♥J♥ 21 doubled404× the bet
9610J♥7♠ 174♥K♠5♣ 19202× the bet
9510J♦3♥J♣ 239♣J♠ 19202× the bet
94107♣A♦ 183♥Q♠9♠ 22 bust00× the bet
93106♠8♦5♠ 195♥J♠ 1500× the bet
92102♥3♠6♥7♣ 18K♦8♣ 18101× the bet
91107♦4♦Q♠ 216♦3♦10♥ 1900× the bet
9010K♦4♥ 143♣K♣A♣J♥ 24 bust00× the bet
8910A♣6♣ 176♠2♦4♣5♠ 17101× the bet
88109♦J♣ 196♣Q♠ 16 surrendered50.5× the bet
87106♦8♣7♥ 215♠2♣10♣ 1700× the bet
86103♣J♥A♠Q♣ 24A♠3♥3♥K♣ 17202× the bet
85102♣J♣9♠ 2110♥6♣ 1600× the bet
84107♠3♣ 107♦8♦K♥ 25 bust00× the bet
8310Q♠5♣Q♠ 258♣J♣ 18202× the bet
82108♥A♥ 199♦4♣4♠ 1700× the bet
8110J♦3♣9♦ 227♣A♠5♠5♣ 18202× the bet
80109♠9♠ 183♥10♠4♥ 1700× the bet
79105♥10♦5♠ 2010♠5♠ 1500× the bet
78109♥6♠ 15A♠J♦ 21 blackjack252.5945× the bet
77106♠J♠9♠ 25Q♣2♠ 12202× the bet
7610A♦5♥7♥4♣ 177♥A♠5♦5♦ 18202× the bet
75107♣6♦ 135♣K♦K♣ 25 bust00× the bet
74109♦5♦9♥ 236♣4♠7♥ 17 doubled404× the bet
7310Q♣Q♠ 206♣Q♠ 16 surrendered50.5× the bet
72106♦A♦ 177♠10♣ 17101× the bet
71106♠4♣J♠ 203♦4♠6♣ 1300× the bet
70105♥5♥Q♣ 204♥10♠ 1400× the bet
69106♠A♦ 173♣6♠3♣ 12 doubled00× the bet
6810K♥4♦ 142♠2♦Q♣10♥ 24 bust00× the bet
6710K♥6♣ 166♥9♣ 15 surrendered50.5× the bet
66103♣Q♦3♥4♣ 203♣A♦8♥4♥ 1600× the bet
65105♣4♦2♠5♠6♥ 228♦2♣5♠ 15 doubled404× the bet
6410Q♣8♣ 186♠2♥10♦ 18101× the bet
63109♣10♥ 199♠2♥Q♥ 21 doubled404× the bet
6210K♥9♣ 19A♥2♦K♣Q♦ 23 bust00× the bet
611010♦10♠ 203♠J♥3♠Q♠ 26 bust00× the bet
6010K♦J♠ 20Q♦4♥A♥10♦ 25 bust00× the bet
59108♦K♦ 18K♣10♦ 20202× the bet
58108♦J♠ 185♣A♦5♠ 21202× the bet
57105♦8♣6♥ 195♥5♦J♦ 20 doubled404× the bet
5610Q♥6♠4♠ 20A♦5♦7♥7♠ 20101× the bet
5510J♠4♥K♣ 2410♠9♦ 19202× the bet
54107♣6♥ 13Q♠A♠ 21 blackjack252.5945× the bet
53104♥4♠3♠A♣6♣ 186♠2♥2♦8♣ 18101× the bet
5210K♥J♣ 202♠A♦9♠J♥ 22 bust00× the bet
51106♦3♣ 9K♠A♣ 21 blackjack252.5945× 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
42869a33939260fb9bbcad13c3039aabf5939e57a8a673334bb036dd081eea85
Seed
22080fdc15b4efe4b2dfc3ebbb4cc24be8e954ee3d4b491ce3f8af991815872d SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
b48d564f6f693b79a073611b92a1f59f
Commitment
Batch 67,670, Merkle root e60bc101b64470dd67234519cdbe332db397db65f8ddbdec53a6c3ac4b4cbfd1. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 77334a60818f0ab293a77981dce12ebfb37769efaa26d2d5459ceee9b3370b74
  2. 6b2689d927063d5b92d64f6c2a4f13737d4f42ad440de5392f79a370cc633261
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.