Degen Protocol
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Session against the house

Blackjack

ended Play money · 616d3cfb9bdfb8cee6d6f5a1a8524fdd

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,230 play
Returned
2,205 play
Bettor's net
-25 play
Return
98.88%

Results by hand

Final
Hands
200
played
Pace
19.4/min
overall 20.5/min
Biggest swing
+30
Seat 1 · hand 194

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

SeatNetRateStreak
gbb-25-12.5 play/100lost 5

Last hands

  1. 200Even0
  2. 199Even0
  3. 198Even0
  4. 197Even0
  5. 196Even0
  6. 195Even0
  7. 194Seat 1+30
  8. 193Even0
  9. 192Even0
  10. 191Even0
  11. 190Seat 1+20
  12. 189Seat 1+10

The hands

Newest first
#BetDealerHandsPaidChecked
20010Q♥3♣ 1310♠4♠Q♦ 24 bust00× the bet
199102♦6♦6♥7♥ 21K♦J♦ 2000× the bet
198108♥2♥A♣ 215♣5♦4♠ 14 doubled00× the bet
197103♠8♥J♣ 219♠10♣ 1900× the bet
19610A♦K♥ 214♣8♦ 1200× the bet
1951010♥K♠ 207♠3♦10♥ 20101× the bet
194106♥10♠7♥ 236♣4♣K♣ 20 doubled6♠2♠K♥ 18606× the bet
193102♦7♣9♠ 183♣9♣4♠ 1600× the bet
192102♥2♦J♣7♠ 214♥A♦10♠ 1500× the bet
191105♥9♦7♦ 21J♠J♣ 2000× the bet
190106♠Q♥3♣ 192♣9♦K♠ 21 doubled404× the bet
189108♥A♠ 19A♣9♣ 20202× the bet
18810A♣10♥ 213♠5♦ 800× the bet
187103♦J♦6♥ 195♦A♦10♦ 1600× the bet
18610J♥J♥ 203♣10♣J♦ 23 bust00× the bet
185102♥Q♠9♠ 215♥8♣ 1300× the bet
184106♣7♦4♦ 17J♥5♦ 1500× the bet
1831010♣2♦4♠9♥ 254♣7♣A♠ 12 doubled404× the bet
18210K♥J♠ 206♥A♦A♠4♥3♣2♠ 1700× the bet
1811010♠4♥8♠ 222♦K♥6♦ 18202× the bet
180107♣A♥ 186♣7♠3♥2♦ 18101× the bet
17910J♣4♠ 1410♦5♥ 15 surrendered50.5× the bet
1781010♥7♠ 175♠8♣4♦ 17101× the bet
17710K♠Q♥ 2010♦5♦ 15 surrendered50.5× the bet
176104♥6♦7♥ 178♣4♠ 1200× the bet
17510A♠7♦ 189♦5♣J♥ 24 bust00× the bet
17410Q♥8♥ 185♦A♠4♦ 20202× the bet
173106♦Q♣K♣ 2610♦9♠ 19202× the bet
172105♣9♥4♠ 184♥2♣Q♥ 1600× the bet
171102♥10♣7♣ 198♥10♦ 1800× the bet
1701010♠Q♣ 2010♣8♦ 1800× the bet
16910K♥K♥ 208♥7♠ 15 surrendered50.5× the bet
168106♠Q♠3♥ 199♥J♠ 19101× the bet
16710K♣K♣ 20Q♣J♦ 20101× the bet
166106♦2♣5♠8♥ 214♣2♥Q♦ 1600× the bet
16510A♦6♦ 175♠3♣7♥3♥ 18202× the bet
16410A♥3♥ 14J♦2♠J♥ 22 bust00× the bet
16310J♥K♣ 203♦6♦Q♦ 1900× the bet
162103♥9♣Q♠ 22K♠7♣ 17202× the bet
161104♦9♣9♥ 227♦3♦J♣ 20 doubled404× the bet
16010A♥4♦ 15J♦2♦10♠ 22 bust00× the bet
15910K♦9♥ 197♠8♣ 15 surrendered50.5× the bet
1581010♠Q♠ 20Q♥J♣ 20101× the bet
157102♠A♦10♣2♥J♦ 253♣K♣ 13202× the bet
156107♥7♠ 145♣Q♣10♣ 25 bust00× the bet
155104♥3♠10♠ 174♠10♥ 1400× the bet
154104♠10♦4♦ 187♥6♣ 1300× the bet
1531010♦K♠ 206♥K♣ 16 surrendered50.5× the bet
152106♣9♦3♣ 182♦Q♦ 1200× the bet
15110A♣3♦ 144♦8♦J♥ 22 bust00× 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
4f86368316f956ecc011f377ca2f60f3d195a2fe2911dba3442f6b92a77492c0
Seed
84870b22a3dc6d822359c69e4730ed9d0b64a965773625801c3498683c1c8ffb SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
8af6a102ba9b40acfda1b40231b234cb
Commitment
Batch 69,511, Merkle root b09e488960c082a073f7deab253f8f137b1b8f2f57bf4e961a13ce7ee31a1db5. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. d7e72c063a49634d647f3d246cccbd8d3da6afe8151c17969d4c02e8e281524c
  2. 8c84f0e6de568f18b2a390d860e5f16f9c4b7d678f4bb2fc903da67c5c6ecfa6
  3. 93e1d99e25e680c2aae53cd7562915f02f5903f5d3e0892abbea2c45eee215e0
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.