Check any round yourself

Before each round runs we publish a seal. After it ends we publish the key it was made from. Anyone can hash the key and see it makes the seal, then redo the arithmetic that turned the key into the crash. No account, no permission, no asking us.

How to check one, in three steps

  1. Pick a round below and open its link. That is the open endpoint — it answers anybody.
  2. Take the key it returns and hash it with SHA-256. The answer must equal the seal shown here, which was published before the round ran.
  3. Hash the key forward to the start of its segment and you land on the commitment we published before any of these rounds existed.

A round that has not finished is refused, in words, with the seconds remaining. The key does not exist to be given out early — that is the whole point of publishing the seal first.

The last 40 rounds that finished

RoundCrashed atChain linkSeal published first
#10106
2026-08-21 19:12
 14.25x — 47c784faa42f9b0c… played before the chain — not checkable
#10105
2026-08-21 19:09
 97.72x — e442fad7b3a7c2b8… played before the chain — not checkable
#10104
2026-08-21 19:09
 1.22x — 1534a7eecc6ee778… played before the chain — not checkable
#10103
2026-08-21 19:08
 1.14x — a3a35ff35f0a3e48… played before the chain — not checkable
#10102
2026-08-21 19:08
 1.97x — 56b127401ba42754… played before the chain — not checkable
#10101
2026-08-21 19:08
 1.05x — 3556e2c737f303fe… played before the chain — not checkable
#10100
2026-08-21 19:07
 1.50x — 624c8919ec97b934… played before the chain — not checkable
#10099
2026-08-21 19:07
 1.78x — c68ce58ad48c297d… played before the chain — not checkable
#10098
2026-08-21 19:05
 1.72x — c29a9852c897d453… played before the chain — not checkable
#10097
2026-08-21 19:05
 1.02x — a75a54d1873541ae… played before the chain — not checkable
#10096
2026-08-21 19:04
 1.76x — 5e3c4e6ddc587522… played before the chain — not checkable
#10095
2026-08-21 19:03
 18.99x — 69217730aa97c212… played before the chain — not checkable
#10094
2026-08-21 19:03
 1.72x — 869329ddcabbfeac… played before the chain — not checkable
#10093
2026-08-21 19:02
 1.51x — c67bc54076d27da4… played before the chain — not checkable
#10092
2026-08-21 19:02
 1.92x — ec74d3dca43d9393… played before the chain — not checkable
#10091
2026-08-21 19:00
 3.51x — c4487e9c4c1333a2… played before the chain — not checkable
#10090
2026-08-21 19:00
 2.47x — a635301fcd956ce5… played before the chain — not checkable
#10089
2026-08-21 18:59
 1.16x — 9bd0e98a5bc2bc30… played before the chain — not checkable
#10088
2026-08-21 18:59
 4.27x — b74011abe5ccd162… played before the chain — not checkable
#10087
2026-08-21 18:57
 49.77x — 4fdfb26034197a87… played before the chain — not checkable
#10086
2026-08-21 18:56
 3.29x — ee62c290115288c4… played before the chain — not checkable
#10085
2026-08-21 18:56
 2.49x — 148f36c6ab4adeb1… played before the chain — not checkable
#10084
2026-08-21 18:55
 2.76x — 5b07e6dbc0e34d3b… played before the chain — not checkable
#10083
2026-08-21 18:54
 2.36x — 51cbd14da1bda743… played before the chain — not checkable
#10082
2026-08-21 18:54
 2.39x — dfac38d49a305f25… played before the chain — not checkable
#10081
2026-08-21 18:53
 7.66x — 9d779e3fb1be0612… played before the chain — not checkable
#10080
2026-08-21 18:52
 1.89x — 43bcc596c9a98c31… played before the chain — not checkable
#10079
2026-08-21 18:51
 100.00x — 7796cebca2eb48ea… played before the chain — not checkable
#10078
2026-08-21 18:50
 1.38x 1258 3e81d209f00ed888… check this round
#10077
2026-08-21 18:50
 2.32x 1256 40a975708d4bc449… check this round
#10076
2026-08-21 18:49
 9.92x 1252 fead2a41cfdcfd8c… check this round
#10075
2026-08-21 18:46
 1,966.55x 1243 e89cd04f3a46ce25… check this round
#10074
2026-08-21 18:46
 2.36x 1239 da9f6c22b4886b1e… check this round
#10073
2026-08-21 18:45
 15.40x 1236 56bef00203d81306… check this round
#10072
2026-08-21 18:44
 1.24x 1233 53527e6da16a60a0… check this round
#10071
2026-08-21 18:44
 1.89x 1230 b3ac8dfcf8b3a71b… check this round
#10070
2026-08-21 18:43
 1.82x 1228 3c3cf9e0da3ad1a6… check this round
#10069
2026-08-21 18:43
 5.48x 1224 381b3b31d321042a… check this round
#10068
2026-08-21 18:42
 1.76x 1223 e6da5a00e65a85ad… check this round
#10067
2026-08-21 18:41
 9.33x 1218 998a34fa9a390a40… check this round

Why some rounds cannot be checked

28 of the 40 rounds above were played before this game moved onto the published chain. Their numbers came from the old engine, and no amount of arithmetic here can prove anything about them. They are listed rather than hidden, because leaving them out would be the more comfortable answer and the less honest one.

The rest of it

Every commitment, with the rounds it covers: /lab/?what=commitments
The standard this follows, in full and free to implement: OCVS-1