Degen Protocol
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Session against the house

Blackjack

ended Play money · 2415fcb5bdf495fb9ba79f3bf7b422d9

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,300 play
Returned
2,240 play
Bettor's net
-60 play
Return
97.39%

Results by hand

Final
Hands
200
played
Pace
20.7/min
overall 21.0/min
Biggest swing
+50
Seat 1 · hand 20

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

SeatNetRateStreak
gbb-60-30.0 play/100lost 1

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
150102♦K♠8♠ 207♣9♠ 1600× the bet
149102♦3♦ 58♣4♠10♥ 22 bust00× the bet
148108♥10♠ 186♠10♦10♣ 26 bust00× the bet
147102♠4♣Q♥Q♣ 26K♠K♦ 20202× the bet
146107♦3♠2♦Q♣ 22K♠2♥2♦7♥ 21202× the bet
145108♥9♥ 17K♥A♠ 21 blackjack252.5945× the bet
144105♥9♠9♠ 2310♦Q♦ 20202× the bet
143105♦10♠5♦ 203♣Q♣ 1300× the bet
1421010♥9♦ 19Q♥10♥ 20202× the bet
141102♥Q♦A♣5♣ 186♠J♦ 1600× the bet
14010J♠2♠3♦6♣ 21A♣4♠2♦J♠ 1700× the bet
139109♠5♥ 14A♣Q♠ 21 blackjack252.5945× the bet
13810Q♥A♣ 215♣J♠ 1500× the bet
13710K♦6♥4♥ 2010♣J♥ 20101× the bet
136106♥J♦9♦ 257♥2♥A♣ 20 doubled404× the bet
135107♠7♠ 14A♣5♦8♣2♠8♠ 24 bust00× the bet
13410Q♦7♣ 17A♥4♦10♣10♠ 25 bust00× the bet
133104♥10♣8♦ 227♣J♠ 17202× the bet
13210J♠A♦ 215♣J♥ 1500× the bet
1311010♥3♠Q♠ 232♣7♠8♣ 17202× the bet
130102♥3♠4♠A♥ 206♠A♥8♥ 1500× the bet
12910K♥10♦ 208♣2♠8♦ 1800× the bet
128103♣K♠ 135♠7♦10♠ 22 bust00× the bet
127109♠Q♦ 194♦10♥2♦K♠ 26 bust00× the bet
12610K♣10♥ 209♦J♣ 1900× the bet
1251010♣5♠10♣ 258♦J♠ 18202× the bet
124106♦5♠2♦8♣ 21J♥3♦ 1300× the bet
123103♥J♦7♦ 20K♠8♦ 1800× the bet
122104♣J♦5♦ 19J♥9♣ 19101× the bet
12110J♦7♠ 175♦K♣ 15 surrendered50.5× the bet
12010K♦4♥6♣ 208♣3♣K♦ 21 doubled404× the bet
11910Q♣2♠ 123♥K♥Q♠ 23 bust00× the bet
11810J♠6♠ 163♦9♠4♠J♣ 26 bust00× the bet
11710Q♥7♥ 175♣6♠9♠ 20 doubled404× the bet
116109♥7♠ 166♦K♠ 16 surrendered50.5× the bet
115105♦9♣4♦ 185♣K♥ 1500× the bet
114104♦9♥J♦ 237♣A♦7♥ 15 doubled404× the bet
113105♠2♠4♠10♥ 217♣3♦K♠ 20 doubled00× the bet
112106♥Q♥J♠ 265♠K♣ 15202× the bet
11110Q♣9♦ 197♣6♥A♥6♦ 20202× the bet
110109♠6♣ 15K♠6♥ 16 surrendered50.5× the bet
109105♥7♣A♥5♣ 183♣7♥Q♥ 20 doubled404× the bet
10810J♣Q♥ 206♠J♦ 16 surrendered50.5× the bet
10710J♠2♥A♦5♦ 189♣A♦ 20202× the bet
106108♥5♦A♣A♦5♣ 20J♠2♣A♣7♣ 20101× the bet
105108♣6♣K♦ 243♠6♥Q♣ 19202× the bet
10410K♣3♣9♣ 224♣K♠7♠ 21202× the bet
10310J♠J♣ 207♠Q♦ 1700× the bet
102102♣7♠9♦ 183♥5♣5♦ 1300× the bet
101105♦2♣3♥7♥ 179♥A♠ 209♣8♦ 17303× 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
2705109530850d1eddda772608734d947c73bfb32c5a8995f29ad13bb2aeb94b
Seed
11d094b4d93c8460566266996213106de38896126cb537433b9770fe5583fd48 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
8b42efa1b14f3e2eaa38fb030ada41c5
Commitment
Batch 71,440, Merkle root 74b4a6a7bfeea5d81abfecd4be4659c6c057c6fa382b04a2e576a8f077412e62. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. f3cf126b80bbeee504ef81deb626ba6a34a7d9931924bda63c8ea5da020a5b9e
  2. 5d923f4dd3955cb5d9e75bf3aaee6ec0cac8af765010ae96898640cca4e939c9
  3. b617c7a8bf661f5778057c482f839da6703e89c26b9d7381f833d2cb133cb1d3
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.