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Degen Protocol
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Session against the house

Blackjack

ended Play money · 851a29dab06909d42c90173fd07dbb36

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,360 play
Returned
2,245 play
Bettor's net
-115 play
Return
95.13%

Results by hand

Final
Hands
200
played
Pace
20.7/min
overall 20.4/min
Biggest swing
+40
Seat 1 · hand 200

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

SeatNetRateStreak
gbb-115-57.5 play/100won 4

Last hands

  1. 200Seat 1+40
  2. 199Seat 1+10
  3. 198Seat 1+10
  4. 197Seat 1+10
  5. 196Even0
  6. 195Even0
  7. 194Even0
  8. 193Even0
  9. 192Even0
  10. 191Even0
  11. 190Seat 1+10
  12. 189Even0

The hands

Newest first
#BetDealerHandsPaidChecked
150105♦10♠Q♠ 258♠3♣4♦ 15 doubled404× the bet
14910J♠2♥3♦4♣ 193♦Q♦7♣ 20202× the bet
148109♣8♥ 173♣J♣7♠ 20202× the bet
14710A♣8♣ 19K♥K♦ 20202× the bet
1461010♦8♦ 18A♦2♦2♣2♦10♣ 1700× the bet
145103♥6♥9♥ 188♦Q♥ 188♥A♣ 19303× the bet
144105♠5♣K♠ 20K♠9♠ 1900× the bet
14310Q♠Q♣ 20Q♥3♣7♠ 20101× the bet
14210K♦3♥6♥ 1910♦J♣ 20202× the bet
14110J♠Q♠ 20J♦3♥4♠ 1700× the bet
14010A♣4♣A♦5♥ 219♠9♣ 1800× the bet
139108♦2♥6♦4♣ 20J♣K♦ 20101× the bet
13810J♦10♣ 207♦9♦ 16 surrendered50.5× the bet
137106♠9♠5♥ 2010♣10♠ 20101× the bet
1361010♦A♥ 2110♥7♣ 1700× the bet
1351010♠J♥ 204♥K♦5♥ 1900× the bet
13410Q♠K♣ 208♥6♦4♣ 1800× the bet
1331010♠K♥ 208♥9♣ 178♠J♥ 1800× the bet
13210K♠K♦ 2010♦9♦ 1900× the bet
13110J♥9♠ 19K♠8♦ 1800× the bet
130104♣3♠6♣4♣ 17Q♦4♥ 1400× the bet
12910K♣10♠ 203♥10♣8♦ 21202× the bet
1281010♠5♣9♠ 243♣8♦5♣ 16 doubled404× the bet
127106♥Q♠K♣ 265♠A♥5♣ 21 doubled404× the bet
1261010♠3♠ 134♥2♦6♣J♣ 22 bust00× the bet
125108♦3♦K♣ 212♥8♣6♣ 16 doubled00× the bet
124107♣7♠5♦ 193♠9♥8♠ 20202× the bet
123103♥10♥3♣3♥ 199♣A♦ 20202× the bet
12210J♦7♥ 179♣10♠ 19202× the bet
121103♦2♠ 5A♠Q♠ 21 blackjack252.5945× the bet
120106♦4♣6♦8♥ 249♦4♠ 139♠3♥ 12404× the bet
11910J♣4♥A♦2♣ 17A♣7♦3♣ 21202× the bet
118106♣K♦6♦ 228♥J♥ 18202× the bet
11710J♦6♦ 162♣6♣7♣K♦ 25 bust00× the bet
116108♠K♦ 184♠4♥Q♣ 18101× the bet
115105♠Q♥K♠ 254♣2♦4♦K♥ 20202× the bet
1141010♥3♦ 134♦J♦2♦Q♠ 26 bust00× the bet
11310K♦5♠ 153♦7♥3♣K♣ 23 bust00× the bet
1121010♣7♣ 176♣K♦ 16 surrendered50.5× the bet
1111010♥2♠ 1210♥4♠8♠ 22 bust00× the bet
11010J♥A♦ 21K♠3♣ 1300× the bet
10910A♥J♦ 217♦8♣ 1500× the bet
108102♦Q♥8♦ 20J♦3♦ 1300× the bet
1071010♦J♠ 202♣10♠2♥K♥ 24 bust00× the bet
10610J♣5♦ 153♠6♠7♣J♦ 26 bust00× the bet
105103♦A♠7♦ 2110♥9♠ 1900× the bet
10410J♦J♣ 209♥2♦6♥ 17 doubled00× the bet
10310K♥K♠ 20J♦6♠ 16 surrendered50.5× the bet
10210A♣9♠ 207♦3♣K♠ 20101× the bet
101104♥3♠9♣2♥ 18J♦3♥ 1300× 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
a7e58073e977e7b8166b5f36d46145071386db6009beef9a80214e12dbbad56f
Seed
743ff2802ed77ee0d397f58a8b167419574135e93a244cacffebdb86f660e49b SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
73ca8f2499572115cbb37fcce99bf23e
Commitment
Batch 64,437, Merkle root 679af53df71b81612b06ac89a1de6bc06c5e1d028814174459014b567eab97ab. Recorded by Degen Protocol, not on a chain. See this batch and its Merkle tree
Merkle path
  1. 3386c3a62d2cfc347b8fbd94431b9406939c7e19e4104a86b8f75dd0986d192e
  2. 3b168157260aba0615b32b53569b0e6cc417b70f8b30bada127aebce9bc177e5
  3. ebc5fbbed919512933acb84f50efe23187db207e6fe78cb819f55badd757b089
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.