Degen Protocol
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Session against the house

Blackjack

ended Play money · 17951eb26028bd64745700d7f15d62bb

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,240 play
Returned
2,115 play
Bettor's net
-125 play
Return
94.42%

Results by hand

Final
Hands
200
played
Pace
22.3/min
overall 20.8/min
Biggest swing
+50
Seat 1 · hand 46

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

SeatNetRateStreak
gbb-125-62.5 play/100lost 1

Last hands

  1. 200Even0
  2. 199Seat 1+15
  3. 198Even0
  4. 197Even0
  5. 196Seat 1+10
  6. 195Seat 1+10
  7. 194Seat 1+10
  8. 193Seat 1+20
  9. 192Even0
  10. 191Even0
  11. 190Seat 1+10
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
50105♠3♥9♣ 178♦10♠ 18202× the bet
49105♥2♦2♠7♣6♠ 224♦3♥2♥K♦ 19202× the bet
481010♥8♣ 18A♣K♦ 21 blackjack252.5945× the bet
4710J♦A♥ 21K♥K♣ 2000× the bet
46105♦8♥2♥A♠J♣ 268♠3♣6♠ 17 doubled8♦6♠ 148♥7♥ 158♣4♠ 1210010× the bet
45109♠9♠ 185♣10♠10♥ 25 bust00× the bet
4410J♠J♥ 205♥8♣A♣7♦ 21202× the bet
43103♣9♦4♣9♣ 252♥4♣10♣ 16202× the bet
4210Q♦Q♠ 2010♦8♥ 1800× the bet
41103♥K♠ 13K♦A♥ 21 blackjack252.5945× the bet
40109♠10♠ 19Q♦2♥J♥ 22 bust00× the bet
39104♦8♥8♦ 2010♣K♣ 20101× the bet
38105♥10♥6♣ 212♥7♣K♣ 19 doubled00× the bet
3710J♥3♣ 136♣A♣8♦8♦ 23 bust00× the bet
36104♣3♥6♥J♦ 23K♦Q♣ 20202× the bet
3510J♥6♦ 164♦9♠A♦9♦ 23 bust00× the bet
3410K♦A♠ 217♠7♣ 1400× the bet
331010♦J♥ 207♣K♦ 1700× the bet
3210Q♥10♥ 20K♠J♠ 20101× the bet
31108♠J♦ 188♥10♥ 18101× the bet
30102♠Q♠5♦ 172♠10♥7♦ 19202× the bet
29108♥8♠ 162♠10♦3♠9♠ 24 bust00× the bet
28107♣10♣ 17A♦5♦4♥ 20202× the bet
27108♦10♠ 189♠7♦8♦ 24 bust00× the bet
2610A♠7♥ 18J♦6♣ 16 surrendered50.5× the bet
25109♦J♣ 195♠9♦K♦ 24 bust00× the bet
2410Q♣10♦ 206♦5♠7♦ 18 doubled00× the bet
23103♦K♠2♥8♦ 234♣K♣ 14202× the bet
2210J♥2♣6♦ 184♦3♠Q♦ 1700× the bet
211010♠3♣J♥ 235♦2♠3♥Q♠ 20202× the bet
20106♠A♣ 17J♠A♣ 21 blackjack252.5945× the bet
19108♣K♣ 184♣2♠6♦8♦ 20202× the bet
18103♠6♦8♣ 174♣K♥ 1400× the bet
1710J♥Q♠ 205♦9♥3♠ 1700× the bet
1610K♣A♠ 212♦A♦ 1300× the bet
15105♥5♠5♠4♣ 19Q♥10♦ 20202× the bet
1410J♥9♠ 19J♦4♥3♥ 1700× the bet
13104♣2♠ 610♥A♠ 21 blackjack252.5945× the bet
12108♠8♠7♦ 2310♦10♣ 20202× the bet
1110K♦K♦ 209♠Q♣ 1900× the bet
10107♣8♥7♥ 224♦10♦3♣ 17202× the bet
9104♠4♦4♥A♠2♦10♦ 25J♥5♦ 15202× the bet
810A♣10♠ 21J♣A♣ 21 blackjack101× the bet
710Q♥K♥ 20J♦3♥6♣ 1900× the bet
6108♥8♥ 166♣10♥J♥ 26 bust00× the bet
5105♣J♠ 15A♣K♣ 21 blackjack252.5945× the bet
41010♣5♠3♥ 18J♥3♥5♦ 18101× the bet
3109♥K♥ 1910♣9♠ 19101× the bet
2105♦9♦4♣ 186♦J♥ 1600× the bet
110Q♦4♣ 14J♣3♠A♦10♦ 24 bust00× 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
074064209b4f8ba407a16d5a84ac9b75a5d711828076e9e62c77b55ca47b53cf
Seed
bca0c62e4275ac17555fb824492771627aa09904a8f748a8e9fd4bbbf14bbb18 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
3ef756f58d8cf1c44b49e17bc5bbb758
Commitment
Batch 69,857, Merkle root d171ffae059813873a00526b76ac2439869cd90867e1d14364cd0c3f652e7543. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 1e0f2f97bc8e51e0fba7aa9ffaa8f21fdf38d4e9124a79ec3d5faea2b30608a1
  2. 77d925113101262604c3d1c13bdaa991a9d811140e18b773b7b542fadd38df57
  3. 36a76d56a177a2ec830943184a749526f7f5d957f931d3d8743d3e70e408d3ef
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.