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Degen Protocol
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Session against the house

Blackjack

ended Play money · 3d05d4e6e4cd6e806dc1c958f5646c09

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,300 play
Returned
2,365 play
Bettor's net
+65 play
Return
102.83%

Results by hand

Final
Hands
200
played
Pace
23.7/min
overall 19.2/min
Biggest swing
-40
Seat 1 · hand 100

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

SeatNetRateStreak
gbb+65+32.5 play/100won 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
100106♠6♦6♣ 186♠7♦ 136♦A♠J♠ 17 doubled6♠J♦ 1600× the bet
99104♠9♠2♣J♦ 254♦7♣10♥ 21 doubled404× the bet
98109♦7♦9♣ 256♥4♣8♦ 18 doubled404× the bet
97103♣A♥10♣9♦ 237♥J♠ 17202× the bet
9610K♥Q♠ 20A♠2♠9♦J♦ 22 bust00× the bet
9510J♦10♠ 209♣J♦ 1900× the bet
941010♦Q♦ 207♥K♦ 1700× the bet
93106♦J♥8♠ 247♠K♦ 17202× the bet
92104♣3♠2♣6♦A♠J♦ 2610♦4♠ 14202× the bet
9110K♥4♥ 142♣3♣8♣A♣9♣ 23 bust00× the bet
9010A♣A♠ 125♥K♦10♣ 25 bust00× the bet
89107♦10♠ 17J♠2♣K♥ 22 bust00× the bet
8810J♦9♥ 19Q♦4♥9♠ 23 bust00× the bet
8710Q♠7♣ 17A♠5♠8♠10♥ 24 bust00× the bet
8610Q♠J♣ 202♠7♥2♥A♦3♦9♠ 24 bust00× the bet
8510Q♣5♣7♦ 227♥3♦10♠ 20202× the bet
8410Q♣3♥ 13Q♥A♠ 21 blackjack252.5945× the bet
8310Q♦8♣ 1810♣2♣3♥Q♠ 25 bust00× the bet
82108♦5♣3♦K♥ 26Q♥8♦ 18202× the bet
81103♥A♦10♠K♦ 242♦J♠A♣ 13202× the bet
8010Q♠3♠ 134♠A♣7♥J♦ 22 bust00× the bet
79108♣J♥ 189♦10♠ 19202× the bet
7810K♣9♥ 193♣10♦7♣ 20202× the bet
7710K♦8♣ 1810♠9♣ 19202× the bet
7610Q♠10♦ 209♣Q♦ 1900× the bet
75104♦10♣Q♣ 2410♥Q♣ 20202× the bet
7410K♠8♣ 189♦6♠ 15 surrendered50.5× the bet
7310Q♥Q♥ 203♥6♦A♦ 20101× the bet
72107♦2♠J♣ 199♦5♣3♠ 1700× the bet
71102♥4♣10♥9♠ 253♣4♦10♦ 17202× the bet
70104♣9♣A♥2♣J♠ 265♦6♣A♦ 12 doubled404× the bet
69105♦Q♦10♠ 257♦K♦ 17202× the bet
681010♣A♠ 217♦10♥ 1700× the bet
67102♥6♠ 810♥2♥Q♥ 22 bust00× the bet
6610A♥3♠ 148♦4♠4♦8♥ 24 bust00× the bet
6510J♦8♣ 186♥8♦A♥9♠ 24 bust00× the bet
6410A♥3♥2♥7♠6♥ 19K♦2♥5♠ 1700× the bet
63108♦7♣J♦ 25A♠7♣ 18202× the bet
62103♠J♠6♥ 19K♣6♠ 1600× the bet
6110Q♥K♣ 20Q♣8♥ 1800× the bet
60105♠7♥A♠2♠2♥ 17J♣Q♥ 20202× the bet
591010♠Q♥ 20Q♥3♣7♣ 20101× the bet
58107♠2♣6♦8♥ 236♣3♦3♥A♠4♠ 17202× the bet
57108♦4♣K♦ 223♥9♥8♣ 20202× the bet
56108♦10♦ 184♦8♣10♥ 22 bust00× the bet
55108♠7♠ 157♦9♠7♥ 23 bust00× the bet
54104♦J♣4♠ 18K♦K♦ 20202× the bet
5310K♠A♠ 219♠A♦ 2000× the bet
52105♥J♣6♠ 21A♥5♦Q♥ 16 doubled00× the bet
5110Q♦5♥3♥ 186♥2♦2♣Q♠ 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
6d4d8d399d7c33286b5ff6637362d5049d432228c8bb06d9a2996abb3c44d676
Seed
2f34538cc7926d7fbe5cd54237b911d401c014af0ce41cd8602469b1dd5075bb SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
2e2b8707de7674bafb65fd1bfb9783b2
Commitment
Batch 63,346, Merkle root b7e5d59442c100d31c50876fdda57cefca9941f9c7738ff2b20befb770e3e883. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
Merkle path
  1. 9174cc8568af63b472bd2f0f4715b40d87a26ede79021cec6237e54ee187685c
  2. 909eef27dac032d725684200441730ba9ad509628f052eefaa0abd7cc8db2059
  3. a849e58c0d0d87acabeb1f7894351eb7f10885eeea6bf03f526d42f537ab860a
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.