Degen Protocol
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Session against the house

Blackjack

ended Play money · cd00802f5e4bf90b5d3e7fbdd5b8ff76

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,260 play
Returned
1,800 play
Bettor's net
-460 play
Return
79.65%

Results by hand

Final
Hands
200
played
Pace
21.7/min
overall 21.2/min
Biggest swing
-30
Seat 1 · hand 190

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

SeatNetRateStreak
gbb-460-230.0 play/100won 5

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
150108♣9♦ 174♥Q♣K♣ 24 bust00× the bet
149104♥10♠Q♦ 247♠10♠ 17202× the bet
148108♥8♣ 166♣2♠7♦K♦ 25 bust00× the bet
147103♠9♣10♣ 228♠7♠ 15202× the bet
14610J♣8♥ 18Q♣2♠3♥7♦ 22 bust00× the bet
1451010♣9♥ 1910♥6♣ 16 surrendered50.5× the bet
14410Q♣5♦ 156♣K♥ 16 surrendered50.5× the bet
143105♣4♦J♠ 19K♣10♣ 20202× the bet
142107♥5♣ 122♦K♥10♣ 22 bust00× the bet
141105♥8♦7♥ 20A♥6♣7♦ 14 doubled00× the bet
140102♦3♦8♦2♦K♦ 25Q♥2♠9♦ 21202× the bet
139109♦K♥ 19K♥2♣4♣Q♠ 26 bust00× the bet
138108♦J♦ 183♣J♠Q♦ 23 bust00× the bet
137109♦4♠ 132♠5♣6♠3♥Q♠ 26 bust00× the bet
1361010♠J♠ 20K♠2♦5♥ 1700× the bet
135104♥10♦A♥2♦ 17A♦2♣8♦ 21202× the bet
134106♥A♦ 17A♥2♠2♠ 15 doubled00× the bet
13310Q♣7♦ 17J♦3♦2♥2♦ 17101× the bet
132107♠J♠ 175♥2♥7♥9♣ 23 bust00× the bet
131109♥5♣5♠ 19J♥J♣ 20202× the bet
130102♣J♥K♦ 229♣J♥ 19202× the bet
129103♠9♦10♥ 22A♠3♥Q♠ 14202× the bet
12810K♣Q♦ 20K♣9♦ 1900× the bet
127109♦9♠ 189♦8♠ 1700× the bet
126108♠Q♣ 18Q♣3♦7♦ 20202× the bet
125104♦7♠2♦A♥2♥9♠ 2510♠8♦ 18202× the bet
124104♦6♠A♥ 213♦8♣7♦ 18 doubled00× the bet
123107♣3♣10♠ 205♠3♦9♣ 1700× the bet
122105♥7♦3♦6♠ 216♠Q♦ 1600× the bet
121108♦J♥ 18K♦7♠ 1700× the bet
120108♥3♥ 11Q♠4♦Q♣ 24 bust00× the bet
119107♥A♥ 182♥3♣K♣3♣ 18101× the bet
118104♦4♣8♠10♣ 26A♥8♥ 19202× the bet
117102♠7♦3♣2♠10♦ 242♠9♠8♥ 19 doubled404× the bet
11610A♣10♠ 216♥8♣ 1400× the bet
115107♣Q♦ 17Q♣A♠ 21 blackjack252.5945× the bet
11410A♥6♦ 17J♣8♠ 18202× the bet
113106♠Q♥4♦ 2010♣3♣ 1300× the bet
112106♠A♠ 175♦10♥ 1500× the bet
11110A♥5♠8♦6♣ 209♣4♦4♥ 1700× the bet
11010K♥J♠ 20Q♦3♥9♠ 22 bust00× the bet
109104♣A♦A♥A♥ 177♥A♥Q♠ 18 doubled404× the bet
1081010♠4♦ 145♣5♦4♣8♦ 22 bust00× the bet
10710Q♠8♣ 187♣3♥Q♥ 20202× the bet
106105♥A♦10♣Q♥ 26J♣Q♥ 20202× the bet
105103♠5♦8♣6♥ 224♥8♣5♦ 17202× the bet
10410Q♠J♥ 20J♥5♠ 15 surrendered50.5× the bet
103105♥5♠5♣Q♥ 2510♠5♦ 15202× the bet
102108♦K♥ 18A♦6♣7♦8♠ 22 bust00× the bet
10110K♣10♠ 204♥5♣J♣ 1900× 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
159312e933789c683a79f28a4934ef97a02f9922c559e891e99f5f77f83e8dce
Seed
836cfd37ea86a8672d90eaf35c5feff8d24d1336311fefcbe383c9b31749bb18 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
869ff4bbe2e207e559ef9a869806b5f0
Commitment
Batch 68,762, Merkle root 54ce5b901e1ee3ea69bfc00e6d90c52cd9e84da56c19c601b6422c54ef260c6b. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. a38d92312c1724749b44648f3b13c32668548d9d4656a16b9e06c10c71f93cb8
  2. e0f8704ea04a8a8b4d2e5eeb50ee65a3c461bd8728fcf7d233e61b31c5726fdb
  3. 15be40352caa789697c9734a31bf8719c4eb07f08c3f4cfeb632ea2c14c8a767
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.