Degen Protocol
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Session against the house

Blackjack

ended Play money · f04b3d660b367a4bfd2cc1c0d387d59d

Watch the replayThe handsThe rulesCheck it is fair

gbbagainst the house
Hands played
200
Wagered
2,380 play
Returned
2,255 play
Bettor's net
-125 play
Return
94.75%

Results by hand

Final
Hands
200
played
Pace
19.6/min
overall 21.0/min
Biggest swing
-50
Seat 1 · hand 154

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

SeatNetRateStreak
gbb-125-62.5 play/100won 2

Last hands

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

The hands

Newest first
#BetDealerHandsPaidChecked
20010J♥J♣ 20J♠Q♦ 20101× the bet
1991010♠J♦ 20Q♣K♠ 20101× the bet
198107♦4♦7♠ 183♣7♥10♣ 20 doubled3♠J♦Q♥ 23 bust404× the bet
197104♠3♦ 710♥A♠ 21 blackjack252.5945× the bet
19610K♥3♦8♦ 213♥5♣J♠ 1800× the bet
19510J♥10♣ 20A♠7♥10♠ 1800× the bet
194103♠Q♠J♣ 237♦Q♦ 17202× the bet
193107♣A♦ 18J♦8♦ 18101× the bet
192108♦2♦3♠A♣7♠ 212♥5♠6♦8♣ 21101× the bet
191108♦7♥6♠ 2110♣Q♦ 2000× the bet
190108♣J♠ 188♠2♠A♥ 21 doubled404× the bet
189105♦Q♣K♣ 25K♥3♥ 13202× the bet
188108♠4♣7♣ 19A♦2♦J♦7♠ 20202× the bet
187103♠8♠9♦ 206♥5♣A♣ 12 doubled00× the bet
18610J♥K♦ 2010♥K♠ 20101× the bet
18510K♥6♦ 16K♣2♠A♣J♣ 23 bust00× the bet
184108♠4♠ 126♣8♣10♥ 24 bust00× the bet
183109♦8♦ 1710♥2♥8♦ 20202× the bet
1821010♥K♠ 204♥J♣K♠ 24 bust00× the bet
181109♥A♣ 202♦Q♣9♥ 21202× the bet
180104♥10♠J♠ 2410♦3♣ 13202× the bet
179107♣5♦3♦Q♣ 25A♥6♠A♦ 18202× the bet
178106♠7♠2♥5♠ 205♥3♠10♥ 1800× the bet
177103♥K♦Q♣ 234♥6♣3♣ 13 doubled404× the bet
176105♠Q♣5♦ 20Q♥3♣ 1300× the bet
1751010♥9♥ 192♠10♠A♣7♥ 20202× the bet
174105♦7♣7♠ 19A♦4♥4♦ 19 doubled202× the bet
173102♦2♣5♥J♥ 196♦5♥7♦ 18 doubled6♥Q♥ 1600× the bet
172104♦6♣8♠ 184♣9♣ 1300× the bet
171108♦6♣10♣ 245♥5♣7♦ 17 doubled404× the bet
17010K♦K♦ 20A♣8♦ 1900× the bet
169107♦9♠8♣ 247♠K♠ 177♠9♦A♠ 177♣2♣5♠9♥ 23 bust404× the bet
168102♥8♥A♦ 213♥5♦8♠ 1600× the bet
167108♦8♠2♠ 185♦6♠10♥ 21 doubled404× the bet
16610K♣Q♥ 209♣10♥ 1900× the bet
16510K♥A♦ 212♥6♣ 800× the bet
164106♣8♦7♠ 214♣9♦ 1300× the bet
16310A♥9♥ 20A♦4♥2♠2♠ 1900× the bet
162104♠2♦ 6A♣J♦ 21 blackjack252.5945× the bet
16110Q♥Q♣ 20K♠10♦ 20101× the bet
16010K♥10♠ 20J♦2♣2♥A♣6♠ 21202× the bet
15910A♠7♥ 183♠10♣4♣ 1700× the bet
158109♥J♠ 193♣8♠Q♥ 21 doubled404× the bet
157107♥2♥J♣ 19Q♥J♥ 20202× the bet
15610Q♥A♠ 214♥4♥ 800× the bet
155105♠5♦7♣ 178♣7♠ 1500× the bet
154104♠6♣7♣ 173♠6♥6♣ 15 doubled3♣5♦5♠ 133♦Q♠ 133♣10♠ 1300× the bet
153106♠3♠9♦ 184♣3♠6♠ 1300× the bet
152105♠K♣10♠ 25J♥8♥ 18202× the bet
151108♠A♠ 194♠4♠8♠3♠ 19101× 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
3df5363a3c29b27ca09845283f88caa451beb2285d9492c6c0d4e59c61102a45
Seed
245e538d4db052767139076524d54a2d1d0744e88b7e1580dd065cd88b628721 SHA-256 of "degen.match.seed.v1", a zero byte and the 32 seed bytes is the seed hash.
Bettor's seed
29d52fec1f9758812e88e43a6e5eb703
Commitment
Batch 69,028, Merkle root 63e1856077c18246193c54fc51140be05574bb7a3b534c5410f349dcb1612038. Recorded by Degen Protocol; on-chain publication is not available yet. See this batch and its Merkle tree
Merkle path
  1. 6415025b3f0ee37a2ea310d1664d01c932c0ba21a35d0c5c8fada1600ebda5ba
  2. 23d0cba8baf308b7977cee2c57c3d54f6523186dd0486f5e8ad7c46178547202
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.