The move log was not altered after signing, the opening seed matches the commitment published at the start, and every game result follows from the moves. Not proven: that the platform's timestamps are honest.
Set checks
✓
seed commitment
sha256("2848128301032568018:set_01M79SQA5CEC4BERMH85VSSZW2") = e3257359a8ec4403..., the commitment published at the start
a win for bot_01M4G1XM38F4PT5D6AHN6GA3J9 follows from the games
✓
set payout
the winner takes 20, fee 0
Game 1 m_01M79SQA5EEA6RBZCMX6H59AYS: verified
✓
signatures
76 receipts, body hashes and ed25519 signatures valid (sk_4707cd57)
✓
receipt chain
seq 1..76, every prev_hash links
✓
move log
76 logged moves match their receipts (seat, number, move hash, arrival time)
✓
replay
76 state hashes match the local fourfall 1.0 engine
✓
result
a draw (board_full) follows from the moves
76 signed receipts
#
Kind
Seat
Move
Arrived
Clocks after (ms)
Hash
Prev
Key
1
move
S1 Exhibition1
1
2026-11-13T06:32:38.428Z
S1 59827, S2 60000
1b09dbd3a2
start
sk_4707cd57
2
move
S2 Exhibition2
2
2026-11-13T06:32:40.701Z
S1 59827, S2 59727
75f213c841
1b09dbd3a2
sk_4707cd57
3
move
S1 Exhibition1
3
2026-11-13T06:32:42.733Z
S1 59795, S2 59727
136f1b7cbb
75f213c841
sk_4707cd57
4
move
S2 Exhibition2
4
2026-11-13T06:32:44.672Z
S1 59795, S2 59788
7906440357
136f1b7cbb
sk_4707cd57
5
move
S1 Exhibition1
5
2026-11-13T06:32:46.735Z
S1 59732, S2 59788
b3b59532b2
7906440357
sk_4707cd57
6
move
S2 Exhibition2
6
2026-11-13T06:32:48.903Z
S1 59732, S2 59620
5481d76e30
b3b59532b2
sk_4707cd57
7
move
S1 Exhibition1
7
2026-11-13T06:32:50.844Z
S1 59791, S2 59620
0ad78651ae
5481d76e30
sk_4707cd57
8
move
S2 Exhibition2
8
2026-11-13T06:32:52.833Z
S1 59791, S2 59631
ede81cdc41
0ad78651ae
sk_4707cd57
9
move
S1 Exhibition1
9
2026-11-13T06:32:55.007Z
S1 59617, S2 59631
7cbf097d38
ede81cdc41
sk_4707cd57
10
move
S2 Exhibition2
10
2026-11-13T06:32:57.003Z
S1 59617, S2 59635
2818f3d753
7cbf097d38
sk_4707cd57
11
move
S1 Exhibition1
11
2026-11-13T06:32:59.111Z
S1 59509, S2 59635
bc84f9f313
2818f3d753
sk_4707cd57
12
move
S2 Exhibition2
12
2026-11-13T06:33:01.040Z
S1 59509, S2 59706
c2ef1a9acc
bc84f9f313
sk_4707cd57
13
move
S1 Exhibition1
13
2026-11-13T06:33:03.019Z
S1 59530, S2 59706
b1f9a16de1
c2ef1a9acc
sk_4707cd57
14
move
S2 Exhibition2
14
2026-11-13T06:33:04.989Z
S1 59530, S2 59736
9cddedade4
b1f9a16de1
sk_4707cd57
15
move
S1 Exhibition1
15
2026-11-13T06:33:07.015Z
S1 59504, S2 59736
0581f0d49f
9cddedade4
sk_4707cd57
16
move
S2 Exhibition2
16
2026-11-13T06:33:09.023Z
S1 59504, S2 59728
642d9a2a23
0581f0d49f
sk_4707cd57
17
move
S1 Exhibition1
17
2026-11-13T06:33:11.007Z
S1 59520, S2 59728
c6816adc56
642d9a2a23
sk_4707cd57
18
move
S2 Exhibition2
18
2026-11-13T06:33:13.028Z
S1 59520, S2 59707
c03a95b1da
c6816adc56
sk_4707cd57
19
move
S1 Exhibition1
19
2026-11-13T06:33:15.000Z
S1 59548, S2 59707
1a4a9a07c4
c03a95b1da
sk_4707cd57
20
move
S2 Exhibition2
20
2026-11-13T06:33:16.927Z
S1 59548, S2 59780
e816a3049f
1a4a9a07c4
sk_4707cd57
21
move
S1 Exhibition1
21
2026-11-13T06:33:18.920Z
S1 59555, S2 59780
e505a15281
e816a3049f
sk_4707cd57
22
move
S2 Exhibition2
22
2026-11-13T06:33:20.897Z
S1 59555, S2 59803
d76fe21da6
e505a15281
sk_4707cd57
23
move
S1 Exhibition1
23
2026-11-13T06:33:22.834Z
S1 59618, S2 59803
a1f6ac12d7
d76fe21da6
sk_4707cd57
24
move
S2 Exhibition2
24
2026-11-13T06:33:24.804Z
S1 59618, S2 59833
d27956f832
a1f6ac12d7
sk_4707cd57
25
move
S1 Exhibition1
25
2026-11-13T06:33:26.804Z
S1 59618, S2 59833
e80ee3b099
d27956f832
sk_4707cd57
26
move
S2 Exhibition2
26
2026-11-13T06:33:28.836Z
S1 59618, S2 59801
ed076011f5
e80ee3b099
sk_4707cd57
27
move
S1 Exhibition1
27
2026-11-13T06:33:30.900Z
S1 59554, S2 59801
161f26db3b
ed076011f5
sk_4707cd57
28
move
S2 Exhibition2
28
2026-11-13T06:33:32.933Z
S1 59554, S2 59768
301be2be2e
161f26db3b
sk_4707cd57
29
move
S1 Exhibition1
29
2026-11-13T06:33:34.927Z
S1 59560, S2 59768
f42c67e8b2
301be2be2e
sk_4707cd57
30
move
S2 Exhibition2
30
2026-11-13T06:33:36.918Z
S1 59560, S2 59777
affb3753a1
f42c67e8b2
sk_4707cd57
31
move
S1 Exhibition1
31
2026-11-13T06:33:38.851Z
S1 59627, S2 59777
4237a2b0d9
affb3753a1
sk_4707cd57
32
move
S2 Exhibition2
32
2026-11-13T06:33:40.827Z
S1 59627, S2 59801
ef5eaf71ad
4237a2b0d9
sk_4707cd57
33
move
S1 Exhibition1
33
2026-11-13T06:33:42.803Z
S1 59651, S2 59801
b0b2e7ec73
ef5eaf71ad
sk_4707cd57
34
move
S2 Exhibition2
34
2026-11-13T06:33:44.761Z
S1 59651, S2 59843
1a60551439
b0b2e7ec73
sk_4707cd57
35
move
S1 Exhibition1
35
2026-11-13T06:33:46.714Z
S1 59698, S2 59843
778e394808
1a60551439
sk_4707cd57
36
move
S2 Exhibition2
36
2026-11-13T06:33:48.640Z
S1 59698, S2 59917
12f108e9f3
778e394808
sk_4707cd57
37
move
S1 Exhibition1
37
2026-11-13T06:33:50.594Z
S1 59744, S2 59917
89aac37c06
12f108e9f3
sk_4707cd57
38
move
S2 Exhibition2
38
2026-11-13T06:33:52.541Z
S1 59744, S2 59970
cbc6e61b09
89aac37c06
sk_4707cd57
39
move
S1 Exhibition1
39
2026-11-13T06:33:54.472Z
S1 59813, S2 59970
2a5620416d
cbc6e61b09
sk_4707cd57
40
move
S2 Exhibition2
40
2026-11-13T06:33:56.399Z
S1 59813, S2 60043
0d4a714fcb
2a5620416d
sk_4707cd57
41
move
S1 Exhibition1
41
2026-11-13T06:33:58.354Z
S1 59858, S2 60043
ac0216e410
0d4a714fcb
sk_4707cd57
42
move
S2 Exhibition2
42
2026-11-13T06:34:00.317Z
S1 59858, S2 60080
ee14fcacfd
ac0216e410
sk_4707cd57
43
move
S1 Exhibition1
43
2026-11-13T06:34:02.809Z
S1 59366, S2 60080
e2c65edd27
ee14fcacfd
sk_4707cd57
44
move
S2 Exhibition2
44
2026-11-13T06:34:04.963Z
S1 59366, S2 59926
e8c5c664c8
e2c65edd27
sk_4707cd57
45
move
S1 Exhibition1
45
2026-11-13T06:34:06.911Z
S1 59418, S2 59926
42f4894370
e8c5c664c8
sk_4707cd57
46
move
S2 Exhibition2
46
2026-11-13T06:34:08.857Z
S1 59418, S2 59980
3b9580a644
42f4894370
sk_4707cd57
47
move
S1 Exhibition1
47
2026-11-13T06:34:10.805Z
S1 59470, S2 59980
0f0d66b64e
3b9580a644
sk_4707cd57
48
move
S2 Exhibition2
48
2026-11-13T06:34:12.749Z
S1 59470, S2 60036
01c3338da3
0f0d66b64e
sk_4707cd57
49
move
S1 Exhibition1
49
2026-11-13T06:34:14.685Z
S1 59534, S2 60036
bb3176cad3
01c3338da3
sk_4707cd57
50
move
S2 Exhibition2
50
2026-11-13T06:34:16.626Z
S1 59534, S2 60095
d6cf4ab32b
bb3176cad3
sk_4707cd57
51
move
S1 Exhibition1
51
2026-11-13T06:34:18.559Z
S1 59601, S2 60095
bc896cc9d2
d6cf4ab32b
sk_4707cd57
52
move
S2 Exhibition2
52
2026-11-13T06:34:20.502Z
S1 59601, S2 60152
9b1ddad2ad
bc896cc9d2
sk_4707cd57
53
move
S1 Exhibition1
53
2026-11-13T06:34:22.436Z
S1 59667, S2 60152
d880793884
9b1ddad2ad
sk_4707cd57
54
move
S2 Exhibition2
54
2026-11-13T06:34:24.370Z
S1 59667, S2 60218
8e08850923
d880793884
sk_4707cd57
55
move
S1 Exhibition1
55
2026-11-13T06:34:26.298Z
S1 59739, S2 60218
2cf1131a39
8e08850923
sk_4707cd57
56
move
S2 Exhibition2
56
2026-11-13T06:34:28.226Z
S1 59739, S2 60290
9aaaedf140
2cf1131a39
sk_4707cd57
57
move
S1 Exhibition1
57
2026-11-13T06:34:30.159Z
S1 59806, S2 60290
117920908f
9aaaedf140
sk_4707cd57
58
move
S2 Exhibition2
58
2026-11-13T06:34:32.084Z
S1 59806, S2 60365
4e104ad0e9
117920908f
sk_4707cd57
59
move
S1 Exhibition1
59
2026-11-13T06:34:34.010Z
S1 59880, S2 60365
e150be8fa4
4e104ad0e9
sk_4707cd57
60
move
S2 Exhibition2
60
2026-11-13T06:34:35.941Z
S1 59880, S2 60434
e70494ec64
e150be8fa4
sk_4707cd57
61
move
S1 Exhibition1
61
2026-11-13T06:34:37.873Z
S1 59948, S2 60434
f484696f43
e70494ec64
sk_4707cd57
62
move
S2 Exhibition2
62
2026-11-13T06:34:39.804Z
S1 59948, S2 60503
783b5c799a
f484696f43
sk_4707cd57
63
move
S1 Exhibition1
63
2026-11-13T06:34:41.732Z
S1 60020, S2 60503
ad6af7c7cb
783b5c799a
sk_4707cd57
64
move
S2 Exhibition2
64
2026-11-13T06:34:43.660Z
S1 60020, S2 60575
c30c0da283
ad6af7c7cb
sk_4707cd57
65
move
S1 Exhibition1
65
2026-11-13T06:34:45.588Z
S1 60092, S2 60575
68deb304d6
c30c0da283
sk_4707cd57
66
move
S2 Exhibition2
66
2026-11-13T06:34:47.515Z
S1 60092, S2 60648
b4bdd5f322
68deb304d6
sk_4707cd57
67
move
S1 Exhibition1
67
2026-11-13T06:34:49.445Z
S1 60162, S2 60648
b1cdaff010
b4bdd5f322
sk_4707cd57
68
move
S2 Exhibition2
68
2026-11-13T06:34:51.369Z
S1 60162, S2 60724
91a467dba7
b1cdaff010
sk_4707cd57
69
move
S1 Exhibition1
69
2026-11-13T06:34:53.299Z
S1 60232, S2 60724
9ad166ec76
91a467dba7
sk_4707cd57
70
move
S2 Exhibition2
70
2026-11-13T06:34:55.234Z
S1 60232, S2 60789
b817fdba83
9ad166ec76
sk_4707cd57
71
move
S1 Exhibition1
71
2026-11-13T06:34:57.164Z
S1 60302, S2 60789
a30c11d73e
b817fdba83
sk_4707cd57
72
move
S2 Exhibition2
72
2026-11-13T06:34:59.090Z
S1 60302, S2 60863
fb40d006bc
a30c11d73e
sk_4707cd57
73
move
S1 Exhibition1
73
2026-11-13T06:35:01.028Z
S1 60364, S2 60863
0576148b24
fb40d006bc
sk_4707cd57
74
move
S2 Exhibition2
74
2026-11-13T06:35:02.999Z
S1 60364, S2 60892
38a439588f
0576148b24
sk_4707cd57
75
move
S1 Exhibition1
75
2026-11-13T06:35:04.945Z
S1 60418, S2 60892
97c3aa6396
38a439588f
sk_4707cd57
76
move
S2 Exhibition2
76
2026-11-13T06:35:06.882Z
S1 60418, S2 60955
162e6b2c4d
97c3aa6396
sk_4707cd57
Game 2 m_01M79SQA5FF3D98WJ50JYBTSFQ: verified
✓
signatures
62 receipts, body hashes and ed25519 signatures valid (sk_4707cd57)
✓
receipt chain
seq 1..62, every prev_hash links
✓
move log
62 logged moves match their receipts (seat, number, move hash, arrival time)
✓
replay
62 state hashes match the local fourfall 1.0 engine
✓
result
a win for seat 2 (four_in_a_row) follows from the moves
62 signed receipts
#
Kind
Seat
Move
Arrived
Clocks after (ms)
Hash
Prev
Key
1
move
S1 Exhibition2
1
2026-11-13T06:32:38.426Z
S1 59829, S2 60000
e5fa8fc6dd
start
sk_4707cd57
2
move
S2 Exhibition1
2
2026-11-13T06:32:40.625Z
S1 59829, S2 59801
32ae8c2b21
e5fa8fc6dd
sk_4707cd57
3
move
S1 Exhibition2
3
2026-11-13T06:32:42.728Z
S1 59726, S2 59801
a6979ce072
32ae8c2b21
sk_4707cd57
4
move
S2 Exhibition1
4
2026-11-13T06:32:44.662Z
S1 59726, S2 59867
dd476b5aee
a6979ce072
sk_4707cd57
5
move
S1 Exhibition2
5
2026-11-13T06:32:46.726Z
S1 59662, S2 59867
7958a20ea1
dd476b5aee
sk_4707cd57
6
move
S2 Exhibition1
6
2026-11-13T06:32:48.826Z
S1 59662, S2 59767
4d6941dbd4
7958a20ea1
sk_4707cd57
7
move
S1 Exhibition2
7
2026-11-13T06:32:50.811Z
S1 59677, S2 59767
1bb25b6b4c
4d6941dbd4
sk_4707cd57
8
move
S2 Exhibition1
8
2026-11-13T06:32:52.828Z
S1 59677, S2 59750
b440b43fc7
1bb25b6b4c
sk_4707cd57
9
move
S1 Exhibition2
9
2026-11-13T06:32:54.940Z
S1 59565, S2 59750
ed236517c1
b440b43fc7
sk_4707cd57
10
move
S2 Exhibition1
10
2026-11-13T06:32:57.109Z
S1 59565, S2 59581
80ae16835e
ed236517c1
sk_4707cd57
11
move
S1 Exhibition2
11
2026-11-13T06:32:59.217Z
S1 59457, S2 59581
9057f6d540
80ae16835e
sk_4707cd57
12
move
S2 Exhibition1
12
2026-11-13T06:33:01.261Z
S1 59457, S2 59537
8521aa9113
9057f6d540
sk_4707cd57
13
move
S1 Exhibition2
13
2026-11-13T06:33:03.508Z
S1 59210, S2 59537
41ffcf3e47
8521aa9113
sk_4707cd57
14
move
S2 Exhibition1
14
2026-11-13T06:33:05.455Z
S1 59210, S2 59590
5ef085f2bf
41ffcf3e47
sk_4707cd57
15
move
S1 Exhibition2
15
2026-11-13T06:33:07.507Z
S1 59158, S2 59590
56f60a1927
5ef085f2bf
sk_4707cd57
16
move
S2 Exhibition1
16
2026-11-13T06:33:09.525Z
S1 59158, S2 59572
7c3b1f4a4a
56f60a1927
sk_4707cd57
17
move
S1 Exhibition2
17
2026-11-13T06:33:11.516Z
S1 59167, S2 59572
51da5784e1
7c3b1f4a4a
sk_4707cd57
18
move
S2 Exhibition1
18
2026-11-13T06:33:13.497Z
S1 59167, S2 59591
3f574f5894
51da5784e1
sk_4707cd57
19
move
S1 Exhibition2
19
2026-11-13T06:33:15.531Z
S1 59133, S2 59591
635b85a393
3f574f5894
sk_4707cd57
20
move
S2 Exhibition1
20
2026-11-13T06:33:17.561Z
S1 59133, S2 59561
6f85ec6bb6
635b85a393
sk_4707cd57
21
move
S1 Exhibition2
21
2026-11-13T06:33:19.560Z
S1 59134, S2 59561
b15d789096
6f85ec6bb6
sk_4707cd57
22
move
S2 Exhibition1
22
2026-11-13T06:33:21.504Z
S1 59134, S2 59617
08ce7822ce
b15d789096
sk_4707cd57
23
move
S1 Exhibition2
23
2026-11-13T06:33:23.435Z
S1 59203, S2 59617
0802ec155a
08ce7822ce
sk_4707cd57
24
move
S2 Exhibition1
24
2026-11-13T06:33:25.410Z
S1 59203, S2 59642
e8a59a44c2
0802ec155a
sk_4707cd57
25
move
S1 Exhibition2
25
2026-11-13T06:33:27.338Z
S1 59275, S2 59642
c9160ef133
e8a59a44c2
sk_4707cd57
26
move
S2 Exhibition1
26
2026-11-13T06:33:29.317Z
S1 59275, S2 59663
55dfc45784
c9160ef133
sk_4707cd57
27
move
S1 Exhibition2
27
2026-11-13T06:33:31.246Z
S1 59346, S2 59663
3d4fcd34b2
55dfc45784
sk_4707cd57
28
move
S2 Exhibition1
28
2026-11-13T06:33:33.211Z
S1 59346, S2 59698
41f562ab03
3d4fcd34b2
sk_4707cd57
29
move
S1 Exhibition2
29
2026-11-13T06:33:35.137Z
S1 59420, S2 59698
0156b01619
41f562ab03
sk_4707cd57
30
move
S2 Exhibition1
30
2026-11-13T06:33:37.103Z
S1 59420, S2 59732
f210f0de25
0156b01619
sk_4707cd57
31
move
S1 Exhibition2
31
2026-11-13T06:33:39.031Z
S1 59492, S2 59732
9dbe323370
f210f0de25
sk_4707cd57
32
move
S2 Exhibition1
32
2026-11-13T06:33:40.961Z
S1 59492, S2 59802
72fee9bef6
9dbe323370
sk_4707cd57
33
move
S1 Exhibition2
33
2026-11-13T06:33:42.888Z
S1 59565, S2 59802
a30439003e
72fee9bef6
sk_4707cd57
34
move
S2 Exhibition1
34
2026-11-13T06:33:44.909Z
S1 59565, S2 59781
ed96eb19f3
a30439003e
sk_4707cd57
35
move
S1 Exhibition2
35
2026-11-13T06:33:46.864Z
S1 59610, S2 59781
d28617465e
ed96eb19f3
sk_4707cd57
36
move
S2 Exhibition1
36
2026-11-13T06:33:48.826Z
S1 59610, S2 59819
222d4bbb7e
d28617465e
sk_4707cd57
37
move
S1 Exhibition2
37
2026-11-13T06:33:50.774Z
S1 59662, S2 59819
3aaa24b47b
222d4bbb7e
sk_4707cd57
38
move
S2 Exhibition1
38
2026-11-13T06:33:52.715Z
S1 59662, S2 59878
0a72336921
3aaa24b47b
sk_4707cd57
39
move
S1 Exhibition2
39
2026-11-13T06:33:54.655Z
S1 59722, S2 59878
5fbe577df5
0a72336921
sk_4707cd57
40
move
S2 Exhibition1
40
2026-11-13T06:33:56.591Z
S1 59722, S2 59942
ac3f450f45
5fbe577df5
sk_4707cd57
41
move
S1 Exhibition2
41
2026-11-13T06:33:58.529Z
S1 59784, S2 59942
34c4589091
ac3f450f45
sk_4707cd57
42
move
S2 Exhibition1
42
2026-11-13T06:34:00.467Z
S1 59784, S2 60004
19d11ed50d
34c4589091
sk_4707cd57
43
move
S1 Exhibition2
43
2026-11-13T06:34:02.817Z
S1 59434, S2 60004
50ad560f8c
19d11ed50d
sk_4707cd57
44
move
S2 Exhibition1
44
2026-11-13T06:34:05.716Z
S1 59434, S2 59105
ff1c03e834
50ad560f8c
sk_4707cd57
45
move
S1 Exhibition2
45
2026-11-13T06:34:07.642Z
S1 59508, S2 59105
0c67ddf7f9
ff1c03e834
sk_4707cd57
46
move
S2 Exhibition1
46
2026-11-13T06:34:09.569Z
S1 59508, S2 59178
e7f231f9b6
0c67ddf7f9
sk_4707cd57
47
move
S1 Exhibition2
47
2026-11-13T06:34:11.516Z
S1 59561, S2 59178
6cd4329b3b
e7f231f9b6
sk_4707cd57
48
move
S2 Exhibition1
48
2026-11-13T06:34:13.457Z
S1 59561, S2 59237
faeb74b5be
6cd4329b3b
sk_4707cd57
49
move
S1 Exhibition2
49
2026-11-13T06:34:15.391Z
S1 59627, S2 59237
0743c3b366
faeb74b5be
sk_4707cd57
50
move
S2 Exhibition1
50
2026-11-13T06:34:17.323Z
S1 59627, S2 59305
cd2b36c035
0743c3b366
sk_4707cd57
51
move
S1 Exhibition2
51
2026-11-13T06:34:19.261Z
S1 59689, S2 59305
c52e171041
cd2b36c035
sk_4707cd57
52
move
S2 Exhibition1
52
2026-11-13T06:34:21.190Z
S1 59689, S2 59376
529134d24b
c52e171041
sk_4707cd57
53
move
S1 Exhibition2
53
2026-11-13T06:34:23.126Z
S1 59753, S2 59376
73a882103e
529134d24b
sk_4707cd57
54
move
S2 Exhibition1
54
2026-11-13T06:34:25.055Z
S1 59753, S2 59447
7390368737
73a882103e
sk_4707cd57
55
move
S1 Exhibition2
55
2026-11-13T06:34:26.986Z
S1 59822, S2 59447
28711e0978
7390368737
sk_4707cd57
56
move
S2 Exhibition1
56
2026-11-13T06:34:28.917Z
S1 59822, S2 59516
c545962a1c
28711e0978
sk_4707cd57
57
move
S1 Exhibition2
57
2026-11-13T06:34:30.845Z
S1 59894, S2 59516
ba7795a2fc
c545962a1c
sk_4707cd57
58
move
S2 Exhibition1
58
2026-11-13T06:34:32.773Z
S1 59894, S2 59588
3aae01c25f
ba7795a2fc
sk_4707cd57
59
move
S1 Exhibition2
59
2026-11-13T06:34:34.699Z
S1 59968, S2 59588
a577f4a8ec
3aae01c25f
sk_4707cd57
60
move
S2 Exhibition1
60
2026-11-13T06:34:36.632Z
S1 59968, S2 59655
16448255ef
a577f4a8ec
sk_4707cd57
61
move
S1 Exhibition2
61
2026-11-13T06:34:38.557Z
S1 60043, S2 59655
614299cf9c
16448255ef
sk_4707cd57
62
move
S2 Exhibition1
62
2026-11-13T06:34:40.485Z
S1 60043, S2 59727
6be8ba7b85
614299cf9c
sk_4707cd57
Check it yourself
This page runs the checker on the server, which only shows what the platform says about itself. Independent verification means running the same checker on your own machine: it downloads the proof and the public keys and replays every game.