Degen Protocol
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Session against the house

Blackjack

ended Play money · 517d27bc5359f1c626f5a483babc665c

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,280 play
Returned
2,260 play
Bettor's net
-20 play
Return
99.12%

Results by hand

Final
Hands
200
played
Pace
20.2/min
overall 20.8/min
Biggest swing
-30
Seat 1 · hand 109

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

SeatNetRateStreak
gbb-20-10.0 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
150109♦Q♣ 196♠4♣7♠ 17 doubled00× the bet
1491010♦5♥ 15Q♣6♥ 16 surrendered50.5× the bet
14810A♦9♣ 207♦Q♣ 1700× the bet
147109♦4♥6♥ 196♦3♠Q♠ 19101× the bet
146102♠J♠5♥ 177♠J♦ 17101× the bet
14510Q♦2♠A♣10♦ 23J♠K♠ 20202× the bet
14410J♥3♠A♠K♠ 247♥4♠4♥ 15 doubled404× the bet
143104♠4♣6♥7♠ 219♥5♥ 1400× the bet
1421010♣Q♥ 202♦6♥2♣4♥7♦ 21202× the bet
14110J♥K♣ 207♠8♠ 15 surrendered50.5× the bet
140109♦K♣ 195♥3♠7♥3♠ 1800× the bet
139104♠5♥3♦4♣Q♥ 2610♥3♥ 13202× the bet
13810K♥A♠ 2110♦3♠ 1300× the bet
1371010♦2♠8♦ 20K♠7♦ 1700× the bet
13610A♠9♥ 209♥7♠ 16 surrendered50.5× the bet
135108♠K♠ 188♥J♥ 18101× the bet
134106♦8♠8♠ 223♣2♣4♥A♣ 20202× the bet
133109♥K♣ 193♠K♥2♣A♦5♣ 21202× the bet
13210Q♦4♥ 143♥J♥9♠ 22 bust00× the bet
1311010♦4♥ 14Q♣2♣2♣2♠J♥ 26 bust00× the bet
13010A♠10♦ 217♦7♦ 1400× the bet
12910J♣3♥ 13A♥10♠ 21 blackjack252.5945× the bet
128102♠3♠ 5A♣10♥ 21 blackjack252.5945× the bet
127105♥7♥7♠ 193♥J♣ 1300× the bet
126103♣10♦K♣ 234♣2♥J♣ 16202× the bet
125105♦A♦ 16J♦A♦ 21 blackjack252.5945× the bet
12410J♣6♣9♣ 253♣2♥4♣K♣ 19202× the bet
123106♠2♦2♥Q♦ 202♥K♣ 1200× the bet
122102♥A♥3♦K♥2♦ 18Q♣3♥ 1300× the bet
12110K♥3♦ 135♠K♣ 15 surrendered50.5× the bet
120102♥3♣2♠5♥9♥ 217♦3♦9♥ 19 doubled00× the bet
11910J♥6♦ 163♣9♣10♣ 22 bust00× the bet
11810A♠4♣ 15K♣6♠ 16 surrendered50.5× the bet
117105♠9♣J♦ 243♠K♠ 133♥J♠ 13404× the bet
11610A♠5♥4♥ 20K♥7♠ 1700× the bet
11510A♠8♥ 1910♠Q♣ 20202× the bet
114106♠6♥6♦ 18A♦8♦ 19202× the bet
113108♣3♦ 11Q♦2♥2♥K♠ 24 bust00× the bet
1121010♦2♠ 122♥4♠8♦9♣ 23 bust00× the bet
111107♠3♦3♠6♣ 198♦10♠ 188♠Q♦ 188♥2♣J♠ 20 doubled404× the bet
11010A♦4♦8♦4♣ 174♥5♣A♣ 20202× the bet
109105♦3♠2♠A♣ 212♣10♠ 122♥9♦5♦ 16 doubled00× the bet
108104♥4♠10♥ 1810♦4♦ 1400× the bet
10710Q♥K♥ 203♦7♣10♥ 20101× the bet
10610A♠2♣Q♦9♥ 22A♥9♣ 20202× the bet
105108♦5♣6♣ 19A♦9♥ 20202× the bet
104107♣10♠ 1710♠10♦ 20202× the bet
10310A♠Q♣ 218♥4♣ 1200× the bet
102104♦8♥ 12A♦J♦ 21 blackjack252.5945× the bet
101104♠4♣K♣ 185♦A♥A♥ 17 doubled00× 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
dc4a4eeebefdc34e94159a56e9d506c66f4b5a1018dbcc442a98e7933b6a1cf5
Seed
88734daeda018e2f0482e2f91401f84bf8d178ed6c4ad21ee04e634ce58decd3 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
33de6f5ee09030dc38a97106b4c74805
Commitment
Batch 72,555, Merkle root 4892fa902dbcc450ae80c2a298b86cb6f05363d3cd81d585397e905c32f0da11. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. aa60a12e002fe2103d4cf2dd80ede9d7fd86020482e71faf10cc62fd0519f361
  2. 2d46829b0b173adaa72220dcf27bbd88377e60a57d9f9275f0c8e67d86fdacca
  3. 43c72a65ab0aa936a9af37084d189eb26d3ce79e6f8e6e3a37c9b20cfdaf0d9c
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.