Degen Protocol
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Session against the house

Blackjack

ended Play money · 10c4f7c475de9a398b1fcaa10a9435f3

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,260 play
Returned
2,305 play
Bettor's net
+45 play
Return
101.99%

Results by hand

Final
Hands
200
played
Pace
21.2/min
overall 20.7/min
Biggest swing
-30
Seat 1 · hand 8

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

SeatNetRateStreak
gbb+45+22.5 play/100won 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
200107♠10♣ 1710♠K♦ 20202× the bet
199109♦3♣9♠ 217♣3♠8♣ 18 doubled00× the bet
198102♣2♦ 4Q♥A♥ 21 blackjack252.5945× the bet
197106♦3♣9♦ 18K♥2♠ 1200× the bet
196105♦Q♠7♠ 22K♥Q♠ 20202× the bet
19510A♥3♦3♣ 172♣9♣3♥3♥ 17101× the bet
194108♥7♣J♣ 255♠6♦Q♥ 21 doubled404× the bet
193102♥8♥J♦ 204♣8♦4♦ 1600× the bet
192106♠8♥K♥ 249♦3♦ 12202× the bet
19110K♣7♣ 177♥10♣ 17101× the bet
19010Q♦9♠ 197♣3♦2♥J♥ 22 bust00× the bet
18910K♥A♣ 21A♦3♥ 1400× the bet
188105♠10♦6♠ 213♦6♦J♣ 19 doubled00× the bet
187108♣5♥J♣ 235♠7♥5♣ 17202× the bet
186104♣3♦4♥3♦8♠ 22A♥3♣K♣ 14202× the bet
18510Q♠3♦ 135♣Q♥ 15 surrendered50.5× the bet
184102♠K♠3♦A♥7♣ 2310♦8♥ 18202× the bet
183103♦10♣4♣ 17J♠K♠ 20202× the bet
182102♦9♦Q♥ 215♥6♥K♣ 21 doubled202× the bet
18110A♦10♠ 219♣5♣ 1400× the bet
180103♠J♠J♥ 235♣J♥ 15202× the bet
179103♣2♦A♥7♠4♥ 17A♣5♥8♣ 1400× the bet
178106♥10♠9♠ 2510♥7♣ 17202× the bet
17710K♣A♥ 21J♥4♣ 1400× the bet
17610A♦6♦ 174♠10♠8♥ 22 bust00× the bet
175108♥3♣8♦ 193♠6♣9♣ 1800× the bet
174102♠5♦8♦9♦ 24K♥2♦7♠ 19202× the bet
17310Q♣7♦ 173♠8♠2♦ 13 doubled00× the bet
17210Q♦K♠ 202♠9♠4♠ 15 doubled00× the bet
17110K♥4♦Q♥ 24A♥9♥ 20A♣6♠ 17404× the bet
170107♦2♣10♥ 19Q♣2♣5♠ 1700× the bet
169107♦A♠ 1810♣5♠6♥ 21202× the bet
16810A♠8♣ 194♥6♣4♦9♠ 23 bust00× the bet
16710Q♣7♥ 175♣7♠Q♠ 22 bust00× the bet
166104♠3♦7♣10♥ 246♠J♦ 16202× the bet
16510K♦K♥ 20K♦9♠ 1900× the bet
16410Q♥4♦K♠ 244♦6♦K♣ 20202× the bet
163108♣5♦ 133♠9♠10♥ 22 bust00× the bet
162107♣K♥ 174♣9♠3♦J♦ 26 bust00× the bet
161105♥9♣3♣ 17J♠4♠ 1400× the bet
16010J♦10♦ 20A♥K♦ 21A♣5♥ 16202× the bet
159106♦3♣5♣K♣ 24K♥J♠ 20202× the bet
158108♥9♦ 17Q♦10♥ 20202× the bet
157104♦4♣ 8A♦J♠ 21 blackjack252.5945× the bet
156102♦5♦9♦10♥ 265♥K♥ 15202× the bet
155107♦5♣A♣10♣ 237♦3♠4♠ 14 doubled404× the bet
154108♥2♦10♣ 204♠7♥Q♥ 21 doubled404× the bet
153104♦4♥A♠ 195♣J♣ 1500× the bet
15210J♣10♦ 202♣6♦K♦ 1800× the bet
151103♦K♠Q♦ 2310♠J♠ 20202× 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
8c91c7c5d5d21302684f7896a04cf31762a105601c5ca2ab482d3aa2d34ac211
Seed
ec44fd8d81f4fed3df8b8c46e46bc161cd7ec3f86b3e5086f55b02eb1e27aa7a SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
ffe1d6918c60018623fa043cc2ad1115
Commitment
Batch 65,517, Merkle root f8bb22ed85a54c0ac033ef2b8e6b68874e6d74c01d768204904e938f397a18cf. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 0de67d7310d70d9046ba40979268af36d773af8bf71dc2f78679dc8a9cea0fde
  2. 8a318f5c3be70cd328f538a346e99ee5d616ec4ce525b278f5d876bbd855c6c3
  3. 283308da0ed49f8398cffd060abcfe348f9ae0502c32ac386ee10c384ecb6151
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.