Degen Protocol
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Session against the house

Blackjack

ended Play money · 8013ebd71b74d0d20d2fcb76cfd5a365

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,240 play
Returned
2,065 play
Bettor's net
-175 play
Return
92.19%

Results by hand

Final
Hands
200
played
Pace
20.1/min
overall 19.4/min
Biggest swing
-20
Seat 1 · hand 4

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

SeatNetRateStreak
gbb-175-87.5 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
2001010♥5♦ 157♥7♥Q♠ 24 bust00× the bet
199104♥10♦K♦ 245♥10♠ 15202× the bet
1981010♠2♠5♠ 179♠5♥3♠ 17101× the bet
19710A♣Q♠ 216♠3♠ 900× the bet
196106♦Q♥A♠ 178♦2♦10♦ 20 doubled404× the bet
19510K♥A♦ 215♥A♣ 1600× the bet
19410J♣3♠ 134♣3♥4♠2♣A♥K♦ 24 bust00× the bet
19310J♥Q♦ 207♥A♦Q♦ 1800× the bet
19210K♦10♣ 20K♠2♥3♣7♣ 22 bust00× the bet
191103♣3♠4♣K♦ 209♠2♦Q♦ 21 doubled404× the bet
190103♥5♣6♠8♥ 223♣4♦4♣J♠ 21202× the bet
18910A♠10♦ 21A♠4♠ 1500× the bet
188105♣10♠7♠ 2210♠J♣ 20202× the bet
18710A♠2♦ 13A♠5♦Q♦7♥ 23 bust00× the bet
186105♣5♠2♦3♣4♦ 19J♦K♥ 20202× the bet
185105♣K♦8♦ 23J♣Q♠ 20202× the bet
18410J♦Q♠ 207♠5♦J♠ 22 bust00× the bet
183107♠7♠7♥ 219♣A♣ 2000× the bet
182107♥K♦ 179♣5♥6♣ 20202× the bet
181109♥7♥K♣ 26Q♠9♠ 19202× the bet
18010A♣10♣ 215♦9♦ 1400× the bet
179103♥8♥2♠5♦ 186♠K♠ 166♣3♦9♠ 18 doubled202× the bet
178108♥4♣7♣ 199♦K♣ 19101× the bet
1771010♦Q♠ 20J♥5♠ 15 surrendered50.5× the bet
176104♣8♦Q♦ 22J♥4♠ 14202× the bet
175107♦5♦ 123♦5♦4♦Q♠ 22 bust00× the bet
174104♣6♦A♣ 21A♠2♣A♥J♣ 1400× the bet
173105♦9♣5♠ 192♥K♣ 1200× the bet
172108♥8♣Q♥ 26K♦9♠ 19202× the bet
171106♦J♠Q♥ 262♦J♦ 12202× the bet
170108♠7♥5♣ 205♠5♥4♣ 14 doubled00× the bet
16910A♥K♣ 219♣A♦ 2000× the bet
168105♥9♣A♠8♦ 23J♦Q♦ 20202× the bet
167108♣7♦2♣ 179♥5♥5♣ 19202× the bet
166108♣K♠ 182♥3♦10♣3♥ 18101× the bet
165104♣A♦Q♦K♦ 252♥7♣7♦ 16 doubled404× the bet
164106♠2♠4♥5♥ 179♦K♣ 19202× the bet
16310Q♦8♦ 18K♣J♠ 20202× the bet
162104♥9♣2♣9♠ 24Q♠4♥ 14202× the bet
161105♥2♦K♣ 178♦A♥ 19202× the bet
160104♣6♠ 10A♥Q♠ 21 blackjack252.5945× the bet
159109♣2♣A♠5♠ 17J♠8♣ 18202× the bet
158105♥5♠Q♦ 2010♥K♥ 20101× the bet
157106♣6♣7♥ 197♣K♣ 1700× the bet
15610K♥7♠ 174♣6♦5♦Q♥ 25 bust00× the bet
15510J♦6♥2♦ 182♠9♠J♥ 21 doubled404× the bet
15410Q♣A♥ 218♣J♣ 1800× the bet
153104♦7♥4♥9♠ 24J♠Q♦ 20202× the bet
152107♦3♥ 109♥6♣9♠ 24 bust00× the bet
151106♠10♠10♣ 269♥A♣ 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
a989a5133d906bfab0ca3dd2eb370c427f9e0fcc77b603697577e29aee30206c
Seed
5d2cea0473eaced17e185516fbf13be0fc249602b5b599da3617d9c94326a102 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
b61299b3bb213957550b763f62228bcc
Commitment
Batch 65,422, Merkle root 92857bce88b0ed385e8b142b34e3b2014123ab184f638a0e84651a021bd5e16e. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. f525d36d72c62e28bc3643e3a08972501d9cc67700267b7d693d50eac2e10258
  2. 1429c1a4d942cdf288a709213aabd9eece79af610441c865c353a9648f24f217
  3. 33daba18efb24351e39a4a4598e7014ce739da707048afadebb1d8448a45915b
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.