Degen Protocol
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Session against the house

Blackjack

ended Play money · b2fb62c59de74e906a31b25868e80829

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,360 play
Returned
2,700 play
Bettor's net
+340 play
Return
114.41%

Results by hand

Final
Hands
200
played
Pace
20.1/min
overall 20.0/min
Biggest swing
+20
Seat 1 · hand 3

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

SeatNetRateStreak
gbb+340+170.0 play/100lost 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
200108♠7♣2♦ 175♠5♠3♥ 13 doubled00× the bet
199106♦7♥4♠ 17J♣3♥ 1300× the bet
198109♦K♠ 199♦2♣8♦ 19 doubled202× the bet
197105♥3♠7♥A♣A♥ 175♣5♦K♥ 20 doubled404× the bet
196109♥5♦10♠ 246♠2♠4♦7♠ 19202× the bet
19510Q♦J♥ 2010♥5♠ 15 surrendered50.5× the bet
1941010♠J♥ 202♦2♣6♣5♥J♥ 25 bust00× the bet
193107♠3♠10♦ 206♥7♣7♥ 20101× the bet
192103♥4♠5♣2♥3♥ 178♦6♥ 1400× the bet
191105♦10♥8♣ 234♣7♠K♠ 21 doubled404× the bet
190106♠J♣J♦ 268♣9♥ 17202× the bet
189109♥6♠Q♦ 255♠4♥K♠ 19202× the bet
18810A♠Q♦ 213♥K♠ 1300× the bet
18710J♥7♠ 1710♥K♦ 20202× the bet
18610J♣9♣ 196♥A♣8♦6♥ 21202× the bet
18510J♦10♣ 203♣4♣J♣ 1700× the bet
18410J♠10♦ 205♣J♦ 15 surrendered50.5× the bet
18310J♠K♥ 206♣10♣ 16 surrendered50.5× the bet
18210A♥A♠7♠ 195♥5♣J♦ 20202× the bet
181109♠7♦4♣ 205♣7♣9♣ 21202× the bet
180104♥Q♦Q♣ 246♠8♣ 14202× the bet
17910A♥8♣ 196♦10♥ 16 surrendered50.5× the bet
17810J♦K♥ 205♥6♠K♣ 21 doubled404× the bet
177104♦J♦K♠ 24J♣3♦ 13202× the bet
17610A♦3♥Q♥10♠ 245♣2♥3♣8♠ 18202× the bet
17510K♣Q♥ 202♣2♥2♣5♣J♦ 21202× the bet
17410K♣3♠J♣ 234♣Q♦7♦ 21202× the bet
173103♣5♣6♦J♠ 2410♠10♦ 20202× the bet
172109♦4♥ 135♥7♠10♦ 22 bust00× the bet
171105♥K♣K♠ 259♠2♣A♦ 12 doubled404× the bet
1701010♣5♠9♥ 249♣Q♥ 19202× the bet
169104♣4♣A♠ 196♠8♠ 1400× the bet
168102♠4♠J♦Q♠ 26K♠K♠ 20202× the bet
167105♦6♦4♠4♣ 197♥8♥ 1500× the bet
16610K♣10♣ 207♦5♠3♥5♣ 20101× the bet
165102♥K♣7♦ 195♦7♣3♥ 1500× the bet
164107♥J♠ 17A♥3♣6♣ 20202× the bet
163105♥Q♣3♣ 186♥5♥4♣ 15 doubled00× the bet
162105♣Q♠7♣ 22K♣10♣ 20202× the bet
161109♦J♣ 194♠8♥2♣6♥ 20202× the bet
160106♣8♦Q♥ 244♦7♥2♥ 13 doubled404× the bet
159105♥K♠9♥ 2410♣J♣ 20202× the bet
158102♠6♦7♣K♣ 254♦6♦J♠ 20 doubled404× the bet
15710Q♥8♠ 186♦10♣ 16 surrendered50.5× the bet
156106♠A♦ 172♥8♠4♣ 14 doubled00× the bet
15510K♠4♥ 14J♣A♣ 21 blackjack252.5945× the bet
15410K♦2♣4♣J♥ 267♠K♣ 17202× the bet
153103♦3♥6♠4♠10♦ 265♦K♣ 15202× the bet
1521010♠7♦ 174♠5♥9♠ 18202× the bet
15110A♦9♦ 20A♥6♣2♥ 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
e38852428a0629d9aad202f94b67aa030eccd07e2c8382c6d7b514df27d29b4c
Seed
a1abe950f6877fa4eb5180d68b0caa7d4de0e061708a80914be42b1a364cc11f SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
5db464d273da71bcbad107464fcedfeb
Commitment
Batch 68,351, Merkle root 840f8a28e1a09b4d8b9d091d6502c27efd5292844f092d7c84c1b80f294fc62f. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 63c980a9e5a8a1a41fcc60b111a06af670d2dc1693b9720806a0044d509dcec5
  2. 27c5a4546af505d5ed25c2606faed69c4f87655a470df03bae16f8082bed91f1
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.