Degen Protocol
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Session against the house

Blackjack

ended Play money · 589b73735b8ed6fcb0890c909bae0704

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,330 play
Returned
2,310 play
Bettor's net
-20 play
Return
99.14%

Results by hand

Final
Hands
200
played
Pace
22.5/min
overall 20.5/min
Biggest swing
+50
Seat 1 · hand 95

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

SeatNetRateStreak
gbb-20-10.0 play/100won 3

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
200105♦J♦ 1510♥A♥ 21 blackjack252.5945× the bet
19910J♣3♣A♠J♦ 24Q♦Q♣ 20202× the bet
198106♠A♠ 177♦3♠K♥ 20 doubled404× the bet
197109♦8♦ 178♣4♥2♣Q♠ 24 bust00× the bet
196104♦A♦4♦ 19J♠J♣ 20202× the bet
19510Q♣5♣J♦ 257♠10♥ 17202× the bet
194102♣7♠7♦5♠ 21J♦4♠ 1400× the bet
19310J♠J♦ 20J♠A♦ 21 blackjack252.5945× the bet
192109♣9♠ 18A♠8♥ 19202× the bet
191105♣Q♦7♦ 224♠2♠K♣ 16202× the bet
19010K♣3♠K♣ 236♦5♦2♣ 13 doubled404× the bet
1891010♥6♥ 162♣7♦5♠Q♠ 24 bust00× the bet
18810J♠K♥ 20Q♣2♥8♠ 20101× the bet
187103♠7♣K♠ 202♠7♥6♦ 15 doubled00× the bet
186107♥K♣ 175♠5♠K♥ 20 doubled404× the bet
185102♠6♦A♥ 193♥7♦2♦ 12 doubled00× the bet
18410J♥A♣ 216♠7♣ 1300× the bet
18310A♥Q♣ 217♥8♣ 1500× the bet
182105♣4♦10♦ 19A♦5♠4♥ 20 doubled404× the bet
181107♦5♠ 12K♥3♦3♣10♦ 26 bust00× the bet
18010J♥3♥8♦ 212♦4♥8♠7♦ 21101× the bet
179106♦9♥J♠ 2510♠5♥ 15202× the bet
178109♠5♠ 147♣8♠Q♦ 25 bust00× the bet
177108♦Q♠ 18Q♦10♠ 20202× the bet
176102♣5♠3♣3♣4♦ 17Q♣K♥ 20202× the bet
175105♦4♥A♥ 20J♦Q♦ 20101× the bet
17410A♦4♦6♠ 21K♣7♠ 1700× the bet
173102♠3♠10♣A♥9♦ 253♠6♣5♠ 14202× the bet
172105♥6♥10♠ 219♣7♥ 1600× the bet
171107♠9♣ 1610♥A♣ 21 blackjack252.5945× the bet
170103♣5♣2♥5♣Q♣ 255♦Q♠ 15202× the bet
169108♦4♦A♦2♥7♥ 22A♥4♣4♥ 19202× the bet
16810A♣A♣3♦Q♠4♦ 19J♣8♥ 1800× the bet
16710J♥J♦ 204♣K♣A♣A♣K♣ 26 bust00× the bet
166108♠9♦ 176♥6♥3♠8♥ 23 bust00× the bet
16510A♥7♠ 18K♦5♥K♣ 25 bust00× the bet
164109♦5♥2♦3♥ 194♣6♥3♥ 13 doubled00× the bet
16310K♥6♣10♥ 263♦5♣8♥5♣ 21202× the bet
162106♣3♣5♥8♦ 222♣Q♠ 12202× the bet
161105♣10♥J♦ 257♥2♣K♦ 19 doubled404× the bet
16010Q♠4♦J♦ 24A♦10♠ 21A♠2♦ 13404× the bet
15910Q♠8♦ 184♥J♣2♠9♣ 25 bust00× the bet
15810J♦6♣4♠ 20A♦4♣J♣6♣ 21202× the bet
157105♦9♠J♦ 24K♦2♥ 12202× the bet
15610J♣7♥ 173♠9♠3♣3♦ 18202× the bet
1551010♠J♠ 20K♠8♥ 1800× the bet
154104♥6♣A♣ 214♦8♣ 1200× the bet
15310Q♥K♣ 204♠9♥7♠ 20101× the bet
15210K♦7♠ 17J♥6♥ 16 surrendered50.5× the bet
15110J♥6♦6♥ 22Q♠2♠8♠ 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
4224148003cb3bc236a47ab91b3f345dc6e58a5e17c30637ee734ec08ee256f8
Seed
7ab25cabdd95eb985281e6738a736a285a30b4f5ed670e2a5f03b9a1b0ef9099 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
eea658bd22529d044568246a4bcd2200
Commitment
Batch 66,451, Merkle root 2f465b3931f419208468a33d5eaf2fbfa32c21cc9c5fdf28d786b1d25dc00c09. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. adca80450b96233955c745b34b9995b2ece2b4ec6f7cd78517e0062a68d5955c
  2. 21980a5070ef2e0a9f52d1f2ab23282c893b0794853fe834979c7e1a02a84b8c
  3. b7cb77f80f8e17482c942506ee68bad39a38e18385b1ea4827f009deb39cde87
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.