Degen Protocol
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Session against the house

Blackjack

ended Play money · 0c730c9e999913ffbeafd5e1ba9328da

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,320 play
Returned
2,440 play
Bettor's net
+120 play
Return
105.17%

Results by hand

Final
Hands
200
played
Pace
18.1/min
overall 19.7/min
Biggest swing
+30
Seat 1 · hand 73

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

SeatNetRateStreak
gbb+120+60.0 play/100lost 4

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
20010Q♥Q♦ 203♠9♥4♣3♠ 1900× the bet
1991010♠K♥ 20K♣7♠ 1700× the bet
19810K♦J♦ 203♥8♣6♦ 17 doubled00× the bet
197102♣Q♣9♣ 218♦K♥ 1800× the bet
196104♠Q♣4♥ 183♣6♣10♥ 19 doubled404× the bet
195104♦3♠Q♠ 173♦Q♣ 133♦2♠10♣ 153♠A♦4♥ 18202× the bet
19410K♠7♣ 174♣Q♦10♥ 24 bust00× the bet
19310A♠2♣ 134♦J♦10♠ 24 bust00× the bet
192107♦9♦ 16A♦K♦ 21 blackjack252.5945× the bet
191102♥3♠7♠A♠7♠ 20J♠9♣ 1900× the bet
1901010♣8♥ 18K♦4♠K♥ 24 bust00× the bet
18910K♦3♣2♠9♠ 246♦7♣6♦ 19202× the bet
1881010♠4♦A♣10♠ 255♣5♣9♣ 19202× the bet
187102♥4♥5♥A♥K♠ 22J♠9♣ 19202× the bet
186105♠10♠3♥ 18J♦5♣ 1500× the bet
185105♥Q♥K♦ 253♥Q♣ 13202× the bet
184109♥Q♥ 196♦10♦ 16 surrendered50.5× the bet
183106♣K♠2♥ 186♥8♣ 1400× the bet
18210K♦2♦6♠ 183♠8♣7♣ 18 doubled202× the bet
1811010♣9♦ 19A♥8♥ 19101× the bet
18010J♦10♣ 20A♥7♣2♦ 20101× the bet
1791010♥10♣ 209♦Q♥ 1900× the bet
178104♦6♥7♣ 176♠4♥Q♠ 20 doubled404× the bet
177109♠10♣ 19K♥10♠ 20202× the bet
176108♦4♣ 122♣2♦2♠10♦7♠ 23 bust00× the bet
17510J♣Q♥ 208♥K♠ 1800× the bet
17410A♥2♥Q♦Q♦ 235♥3♠10♥ 18202× the bet
17310K♣5♥8♦ 23Q♠8♠ 18202× the bet
172106♦K♥K♣ 263♣K♣ 13202× the bet
171106♥6♥6♦ 183♥5♦5♦ 133♣2♣A♥3♠ 19202× the bet
170107♥7♣Q♠ 24J♥10♣ 20202× the bet
16910J♦Q♥ 20Q♥A♠ 21 blackjack252.5945× the bet
168109♦5♦ 146♥8♣9♥ 23 bust00× the bet
167102♥5♥9♠8♣ 245♥3♥2♦J♥ 20202× the bet
166107♦J♦ 173♥7♦J♠ 20 doubled404× the bet
16510K♦3♣ 13A♥4♥2♠7♣A♥K♦ 25 bust00× the bet
164105♦3♠A♠ 1910♦J♠ 20202× the bet
163103♣9♣Q♥ 224♦2♦5♣J♥ 21202× the bet
16210A♣Q♣ 21A♠5♠ 1600× the bet
1611010♣3♥6♥ 19J♦J♥ 20202× the bet
16010A♥8♥ 194♣K♠2♥3♠ 19101× the bet
159102♠Q♣A♣5♥ 18Q♦6♠ 1600× the bet
158103♦8♣J♥ 213♣7♠Q♣ 20 doubled00× the bet
157107♦9♣Q♣ 26Q♠8♣ 18202× the bet
156102♠7♦4♦7♣ 205♦J♥ 1500× the bet
15510K♣J♦ 202♣A♥A♥10♥9♣ 23 bust00× the bet
154105♣J♣10♦ 258♠4♦ 128♣J♥ 188♠Q♠ 18606× the bet
15310J♠7♠ 17Q♣5♣ 15 surrendered50.5× the bet
15210A♦9♠ 202♠3♦K♣A♦Q♦ 26 bust00× the bet
151107♣7♠4♣ 187♥A♣ 18101× 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
e9f027c2bf7b134f3392b1bffa09266258743dc72176be1b36bf5312ae557a49
Seed
5dcc33866f85d389e580c8cb6e08ad84adb1693b89be432e84fea8a98965effd SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
828da0eae5ea89190d7d5883cce9a6c3
Commitment
Batch 65,273, Merkle root 868af9546e077be34d3734d576b39b56159d7b7124d9d87a0f83c4d2a2983ff4. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. c810ae0f7287fad417eb28f886879b835e99caa85c92ad9e795b248359bf6e06
  2. 1612b3c44dabc0761c3b2db0b10939d324c6b6c2a128d87363f2ca1d051b2930
  3. 4a92e1a410b4a7f0529f1734e0a837d2bc18480c894f0315dba30e4b62c0bd29
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.