Degen Protocol
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Session against the house

Blackjack

ended Play money · eba964baa34206c0f6d643483f1522f3

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,310 play
Returned
2,355 play
Bettor's net
+45 play
Return
101.95%

Results by hand

Final
Hands
200
played
Pace
15.6/min
overall 19.6/min
Biggest swing
+30
Seat 1 · hand 155

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

SeatNetRateStreak
gbb+45+22.5 play/100lost 3

Last hands

  1. 200Even0
  2. 199Even0
  3. 198Even0
  4. 197Even0
  5. 196Even0
  6. 195Seat 1+10
  7. 194Even0
  8. 193Seat 1+10
  9. 192Seat 1+15
  10. 191Seat 1+10
  11. 190Even0
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
10010A♣8♥ 1910♥3♥K♦ 23 bust00× the bet
99105♠4♠2♦A♥A♥J♠ 233♠9♣ 12202× the bet
9810Q♦Q♦ 205♥7♠J♦ 22 bust00× the bet
97107♣4♣8♠ 193♦6♥10♣ 19101× the bet
961010♣3♣ 139♦6♣ 15 surrendered50.5× the bet
95109♥6♥Q♥ 253♠3♦8♣7♠ 21202× the bet
941010♦7♠ 173♦7♥Q♦ 20202× the bet
93107♠5♠ 122♠3♦9♥J♠ 24 bust00× the bet
92103♦A♥Q♠3♦ 17A♦7♠9♠ 17 doubled202× the bet
91109♦K♦ 19A♦5♥J♥5♦ 21202× the bet
901010♥K♥ 202♠7♣6♣10♥ 25 bust00× the bet
891010♦8♣ 182♠6♦5♥A♣4♥ 18101× the bet
88107♠8♣ 1510♣A♣ 21 blackjack252.5945× the bet
87104♣6♥10♠ 209♣5♦ 1400× the bet
8610A♠8♦ 194♠9♠9♣ 22 bust00× the bet
851010♠Q♠ 20J♥3♦A♣A♠10♠ 25 bust00× the bet
8410K♠7♣ 179♦3♦3♦7♥ 22 bust00× the bet
831010♥5♠K♦ 259♦8♠ 17202× the bet
82107♥6♠ 134♥8♥3♦Q♠ 25 bust00× the bet
81109♥K♦ 193♣5♠3♣4♠Q♣ 25 bust00× the bet
8010A♥8♦ 192♠8♥9♦ 19101× the bet
79102♦3♣6♦J♠ 216♣J♦ 1600× the bet
78108♠5♠ 13K♥A♥ 21 blackjack252.5945× the bet
771010♠4♣ 147♦A♠8♦7♦ 23 bust00× the bet
761010♣9♥ 197♠2♠K♦ 19101× the bet
75106♣4♣6♦9♥ 255♥A♥9♥ 15 doubled404× the bet
7410J♠2♠A♣9♠ 224♦5♦9♠ 18202× the bet
73106♥K♣A♥ 179♣Q♦ 19202× the bet
72102♣7♣4♥J♠ 234♣J♠ 14202× the bet
71104♥5♠5♣9♦ 232♥A♦8♠ 21202× the bet
70106♠8♠J♣ 245♦6♥8♦ 19 doubled404× the bet
69104♥7♥4♠6♣ 213♦10♣ 1300× the bet
6810K♠K♦ 203♦K♣K♦ 23 bust00× the bet
67105♣7♣Q♣ 22Q♦8♣ 18202× the bet
66106♥Q♥Q♣ 266♣5♥9♥ 20 doubled404× the bet
6510Q♣7♣ 17J♥3♣7♥ 20202× the bet
64106♦9♣6♠ 216♣J♥ 1600× the bet
63105♠10♠Q♣ 258♣5♦ 13202× the bet
62107♦3♦ 102♦4♣8♦9♠ 23 bust00× the bet
61104♥4♦7♦3♠ 18A♣4♦3♠ 18101× the bet
60102♠4♠10♣9♠ 258♦2♠6♣ 16 doubled404× the bet
5910A♥3♠ 14K♣4♣9♦ 23 bust00× the bet
581010♠4♣9♦ 234♥A♣2♦4♠ 21202× the bet
57104♣4♦Q♠ 184♥K♦ 1400× the bet
561010♣3♥ 1310♠6♠ 16 surrendered50.5× the bet
55104♦A♥5♥ 205♦A♥Q♦ 16 doubled00× the bet
54105♦4♣2♣9♦ 208♣3♠5♣ 16 doubled00× the bet
53103♣A♠K♣J♥ 245♣9♥ 14202× the bet
521010♠10♠ 207♥3♦4♠10♣ 24 bust00× the bet
51105♠J♦8♦ 237♠3♥K♣ 20 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
04639a462ada086e5fb82a030953ecfcdf5ffb4e4db8676999c778254d67ff0a
Seed
414b742696d0905a3d98bbff18254c6ae8d7a9578f542ad5225f963069873acd SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
666f61268ebca9456816ba331799f1ea
Commitment
Batch 69,391, Merkle root 0777bc5334d4ec5db4d4136a8b470c7ef68c4c8df2475fcbbef5e951f403f4b4. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. b3a65a5f86d575a59014986baf7cefa5db2590d25c9217052c870124efc2ca92
  2. ec98014aaaeaddb8b11d7a0a7c360e635d95705d55f791ab66cd0b0b1e7ee6f1
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.