Degen Protocol
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Session against the house

Blackjack

ended Play money · a6e9fa24f47e27356297209872f5b764

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,220 play
Returned
2,155 play
Bettor's net
-65 play
Return
97.07%

Results by hand

Final
Hands
200
played
Pace
19.4/min
overall 20.5/min
Biggest swing
+30
Seat 1 · hand 7

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

SeatNetRateStreak
gbb-65-32.5 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
50105♦A♣2♣ 18Q♥6♣ 1600× the bet
4910A♥7♦ 18J♠10♣ 20202× the bet
481010♠8♠ 18Q♥6♣ 16 surrendered50.5× the bet
47103♦9♠4♠3♣ 197♥Q♣ 1700× the bet
46103♠3♣10♣9♣ 258♠4♦4♣ 168♣10♣ 18404× the bet
45105♦5♦Q♠ 206♥Q♠ 1600× the bet
44105♦9♦5♦ 196♣Q♣ 166♣4♥5♣ 15 doubled00× the bet
4310Q♣7♥ 178♣6♣10♠ 24 bust00× the bet
42105♥3♦ 8A♣J♥ 21 blackjack252.5945× the bet
4110K♦3♣10♣ 23J♣Q♥ 20202× the bet
4010K♠4♠ 145♦K♣ 15 surrendered50.5× the bet
391010♣6♣ 16Q♠6♠ 16 surrendered50.5× the bet
38105♣J♠J♦ 25K♠10♥ 20202× the bet
37107♦6♥ 136♦J♦10♠ 26 bust00× the bet
3610J♣3♣ 136♦2♥7♦K♥ 25 bust00× the bet
3510J♦J♥ 207♣4♣8♠ 19 doubled00× the bet
341010♦8♦ 18A♦4♦3♦8♠10♠ 26 bust00× the bet
33103♣6♣4♠5♠ 189♥5♦ 1400× the bet
32109♥3♥10♦ 229♦6♦4♣ 19202× the bet
3110J♦7♦ 178♥4♣5♣ 17101× the bet
30108♣4♥Q♥ 22K♦9♠ 19202× the bet
2910K♠9♠ 193♥9♠10♠ 22 bust00× the bet
28108♣J♦ 184♦8♦Q♥ 22 bust00× the bet
27106♣3♥6♥10♠ 2510♣10♦ 20202× the bet
2610K♦7♥ 172♦J♣5♣ 17101× the bet
25109♠8♦ 1710♠4♣10♥ 24 bust00× the bet
24108♥J♣ 187♠9♣Q♥ 26 bust00× the bet
2310K♦J♣ 204♠8♠K♦ 22 bust00× the bet
22109♠J♥ 1910♣6♠ 16 surrendered50.5× the bet
21102♠8♣8♣ 18J♣5♦ 1500× the bet
201010♣Q♠ 207♥3♦K♦ 20101× the bet
19109♦K♦ 194♦10♣Q♠ 24 bust00× the bet
18103♦3♣K♦Q♠ 264♣2♠10♥ 16202× the bet
17108♣2♦K♠ 204♦9♠7♥ 20101× the bet
16102♠A♠2♥3♠ 18Q♣7♠ 1700× the bet
15103♣7♠J♣ 203♥J♣ 1300× the bet
14105♥3♦A♥ 195♣10♣ 1500× the bet
13107♥8♥J♣ 259♥2♥4♣ 15 doubled404× the bet
1210J♥8♦ 187♦7♣A♠K♠ 25 bust00× the bet
1110K♥3♦4♦ 178♥A♣ 19202× the bet
1010K♣Q♠ 209♦7♥ 16 surrendered50.5× the bet
910K♦9♠ 19J♥K♥ 20202× the bet
8106♣9♥2♥ 17K♦3♣ 1300× the bet
7106♦10♠10♦ 264♦3♠7♦ 144♣5♦9♣ 18 doubled606× the bet
6106♣7♦K♠ 232♣J♠ 12202× the bet
510K♣10♥ 206♣2♣2♣J♠ 20101× the bet
410A♣9♠ 208♣7♠2♠ 1700× the bet
310K♥7♠ 1710♠7♣ 17101× the bet
2108♠3♦ 112♦Q♣J♥ 22 bust00× the bet
110K♥3♣K♣ 235♦4♥10♣ 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
9b2b7e4fc88ce14c4bec88d94818e14831693da8999c08eb424c0de9678cb4fb
Seed
feeb9022b489eac7c9d673849c83acd9159ff8b51a31d231930306a3abbcb182 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
7815f25bd4db8e28ef6ab658d3f48708
Commitment
Batch 68,599, Merkle root 88ccc75d0c1b184351680b4b4502b2a77df0fb0d94112d00bef8fe81c55fd55d. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 373b768bbb48e7aebf920a148e8102d2552e455a9d2f35b391b36e41950ee0bb
  2. d920cf524dea232a2e94a6f54f9287b98dd6840417b020f5eca2c618b922ba4f
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.