Degen Protocol
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Session against the house

Blackjack

ended Play money · 5d95ab56f89a09c20c71d43394375002

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,330 play
Returned
2,485 play
Bettor's net
+155 play
Return
106.65%

Results by hand

Final
Hands
200
played
Pace
20.0/min
overall 20.2/min
Biggest swing
+50
Seat 1 · hand 38

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

SeatNetRateStreak
gbb+155+77.5 play/100won 4

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
150106♣3♦4♠2♣6♥ 212♠3♥6♣3♥ 1400× the bet
1491010♣Q♦ 209♥9♣ 1800× the bet
148105♠10♥3♠ 183♥Q♦ 1300× the bet
147107♥10♣ 1710♦6♥9♥ 25 bust00× the bet
146108♦2♠ 107♥9♦9♦ 25 bust00× the bet
145104♥7♦10♣ 215♠5♥7♦ 17 doubled00× the bet
144103♦6♣9♠ 182♦8♣9♣ 19 doubled404× the bet
143107♦10♦ 17K♦J♣ 20202× the bet
142108♠K♠ 185♦3♥3♠9♣ 20202× the bet
141103♠Q♣8♠ 2110♠8♣ 1800× the bet
140103♥J♣A♦3♣ 175♥5♥J♥ 20 doubled404× the bet
139105♥K♥8♠ 237♠A♦2♠ 20 doubled404× the bet
13810J♣7♣ 17Q♥5♣ 15 surrendered50.5× the bet
137105♦6♥4♥K♠ 255♦6♦7♣ 18 doubled404× the bet
136108♥K♦ 1810♠8♠ 18101× the bet
135102♣3♦ 55♦2♣5♥10♦ 22 bust00× the bet
134106♥8♥6♣ 202♣3♦9♥ 1400× the bet
13310A♥7♦ 18A♣6♦A♥Q♥ 18101× the bet
132106♣K♠7♣ 23J♠5♣ 15202× the bet
131107♠J♣ 17J♦9♦ 19202× the bet
130104♣8♥5♣ 17Q♥6♥ 1600× the bet
1291010♦3♦ 133♥6♣3♣Q♦ 22 bust00× the bet
128108♥3♥ 117♣7♥A♥Q♣ 25 bust00× the bet
127107♦2♠6♠8♦ 238♥7♥4♦ 198♣7♣A♣3♦ 19404× the bet
1261010♦7♦ 172♦8♣3♠3♠5♥ 21202× the bet
125108♥A♦ 19J♠K♥ 20202× the bet
124102♥6♦9♣ 17J♥6♠ 1600× the bet
123102♣J♣5♥ 174♠10♣ 1400× the bet
122107♥A♥ 183♠2♣6♣7♣ 18101× the bet
121102♠10♠6♠ 18Q♠Q♦ 20202× the bet
120105♠Q♥5♠ 203♣J♦ 1300× the bet
11910Q♦10♥ 204♦2♠K♦8♣ 24 bust00× the bet
118106♣3♥3♦8♣ 209♥5♠ 1400× the bet
1171010♣9♠ 19K♦4♠K♠ 24 bust00× the bet
116106♦A♦ 17K♦8♠ 18202× the bet
11510J♥2♣ 127♦8♣ 15 surrendered50.5× the bet
114103♥6♣9♠ 18K♦8♣ 18101× the bet
113109♣Q♠ 195♦9♣10♠ 24 bust00× the bet
112108♠2♣2♣4♠Q♦ 264♣7♣J♣ 21 doubled404× the bet
111106♠Q♦3♠ 19K♥7♥ 1700× the bet
110107♣9♠ 167♥8♦10♥ 25 bust00× the bet
109106♦9♠5♦ 20A♦9♣ 20101× the bet
10810J♠2♠ 12A♥K♥ 21 blackjack252.5945× the bet
107105♣J♦8♦ 235♣A♥6♠ 12 doubled404× the bet
106105♥5♣8♠ 187♥8♦ 1500× the bet
105108♦10♥ 18Q♥6♦4♠ 20202× the bet
104103♠J♠A♣A♦9♣ 243♠2♠Q♥ 15202× the bet
1031010♥Q♣ 205♣J♣ 15 surrendered50.5× the bet
102105♣6♥10♦ 215♠A♥10♣ 16 doubled00× the bet
101109♣K♠ 19A♦10♣ 21 blackjack252.5945× 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
0ccc55cad7f04a7a028c5977bafc562060ddf52242de344d18325b97f95503b5
Seed
400aaa511dc023728612e3d36883580f3037c57e99c2439327cbff8bada7a44f SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
c70d245f39949134b46dbe849596699f
Commitment
Batch 69,221, Merkle root 5ee25373ccee6da93f2dfa553a4e325c9725ea0b8d92da3a4beed7054c59255b. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. fea4bebb3b2bf9496e9abb85ee23eae08896128c5baf10cf4fdbf35f21c02c5e
  2. 2f8af7f6ac69b93e133dc681447dc04557e51be3c5c0bd4d25007bf8aa74756b
  3. 704f7f66a54612e5b836e30a04941efaf1da0d8a6e0d177300a65b6a55783647
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.