maybe bitminer was your pool.
you need to realize that hundreds of pools have shut down over the years.
there was a list with pool number ids some place let me try to find it.
https://btc.com/btc/insights-poolsPools Ranking
Ranking Pools Share Blocks Mined
Empty Blocks Count
(Percentage)
Avg. Tx Fees
Per Block (BTC)
Tx Fees/
Block Reward
Last Block
0 NETWORK 100.00% 859,579 102472(11.92%) 0.34485774 1.50% 859,578
1
unknown
26.66% 229,173 96414(42.07%) 0.06606185 0.15% 859,484
2
AntPool
10.48% 90,073 1907(2.12%) 0.49914888 4.17% 859,578
3
F2Pool
10.13% 87,054 1156(1.33%) 0.39230232 2.75% 859,562
4
Foundry USA
4.94% 42,426 3(0.01%) 0.30320399 5.20% 859,575
5
BTC.com
4.75% 40,827 400(0.98%) 0.63870288 6.07% 859,202
6
Braiins Pool
4.72% 40,546 235(0.58%) 0.45136516 2.34% 859,549
7
ViaBTC
4.66% 40,045 152(0.38%) 0.53603215 6.11% 859,573
8
BTC Guild
3.83% 32,935 12(0.04%) 0.19900559 0.65% 363,142
9
Poolin
3.23% 27,730 80(0.29%) 0.35208589 4.00% 859,559
10
GHash.IO
2.69% 23,083 1(0%) 0.10735954 0.43% 435,686
11
Binance Pool
2.32% 19,922 83(0.42%) 0.34688540 5.62% 859,528
12
BitFury
2.27% 19,513 0(0%) 0.52915569 2.75% 622,855
13
BTCC
2.10% 18,027 425(2.36%) 0.59012497 3.02% 543,040
14
BTC.TOP
1.95% 16,748 83(0.50%) 1.03817614 8.68% 690,257
15
BWPool
1.48% 12,733 319(2.51%) 0.53847580 2.82% 549,337
16
Eligius
1.32% 11,387 349(3.06%) 0.12032936 0.41% 495,555
17
Huobi.pool
1.09% 9,351 71(0.76%) 0.48832855 5.40% 710,871
18
BitMinter
0.75% 6,464 138(2.13%) 0.19248174 0.61% 589,801
19
50BTC
0.74% 6,392 1(0.02%) 0.26881565 1.08% 303,841
20
KnCMiner
0.73% 6,290 220(3.50%) 0.16648023 0.68% 429,464
21
Bixin
0.67% 5,753 71(1.23%) 1.19119805 9.29% 592,811
22
BitClub
0.66% 5,672 0(0%) 0.96380349 6.55% 602,584
23
1THash
0.59% 5,041 12(0.24%) 0.52717969 6.36% 858,431
24
OzCoin
0.56% 4,845 2(0.04%) 0.23176963 0.60% 322,259
25
Luxor
0.43% 3,701 12(0.32%) 0.28894412 4.94% 859,569
26
EclipseMC
0.42% 3,596 46(1.28%) 0.17917486 0.70% 673,259
27
SBI Crypto
0.37% 3,142 10(0.32%) 0.30382261 5.18% 859,508
28
ASICMiner
0.36% 3,127 5(0.16%) 0.20080492 0.80% 294,915
29
OKExPool
0.34% 2,912 11(0.38%) 0.41767702 4.73% 720,017
30
MARA Pool
0.31% 2,703 1(0.04%) 0.40795192 7.65% 859,576
31
Bitcoin.com
0.29% 2,475 7(0.28%) 0.91506948 7.37% 679,929
32
KanoPool
0.28% 2,438 0(0%) 0.64531639 3.51% 851,081
33
GBMiners
0.24% 2,093 1(0.05%) 1.34624520 10.77% 518,246
34
DPOOL
0.22% 1,918 0(0%) 0.22074728 1.77% 575,484
35
1Hash
0.22% 1,895 110(5.80%) 1.21685301 8.55% 498,050
36
Telco 214
0.21% 1,830 0(0%) 0.43543355 2.03% 481,813
37
CloudHashing
0.21% 1,824 1(0.05%) 0.07963856 0.32% 343,436
38
Lubian.com
0.21% 1,783 0(0%) 0.69285840 10.26% 672,636
39
21 Inc.
0.18% 1,508 0(0%) 0.19635398 0.79% 400,698
40
WAYI.CN
0.17% 1,486 6(0.40%) 0.33765219 2.93% 688,930
41
Polmine
0.15% 1,290 5(0.39%) 0.08912112 0.36% 359,812
42
SpiderPool
0.15% 1,257 24(1.91%) 0.38668065 6.95% 859,540
43
BytePool
0.12% 1,002 3(0.30%) 0.18683663 1.49% 624,155
44
NovaBlock
0.11% 968 2(0.21%) 0.43665690 4.54% 672,523
45
Cointerra
0.11% 908 7(0.77%) 0.08169024 0.33% 332,469
46
MegaBigPower
0.09% 816 8(0.98%) 0.04876578 0.20% 363,545
47
58COIN
0.09% 745 29(3.89%) 1.34473397 10.76% 563,915
48
BTPOOL
0.08% 703 11(1.56%) 1.18903079 9.51% 554,863
49
digitalBTC
0.08% 676 0(0%) 0.08723250 0.35% 354,904
50
HHTT
0.07% 623 0(0%) 0.31250561 1.21% 277,071
51
Bitparking
0.07% 583 0(0%) 0.26318209 1.05% 291,139
52
ULTIMUS POOL
0.07% 578 1(0.17%) 0.26999519 4.56% 859,458
53
EMCDPool
0.06% 507 1(0.20%) 0.26675166 4.27% 807,826
54
MaxBTC
0.05% 449 0(0%) 0.25104958 0.57% 245,391
55
CanoePool
0.05% 445 1(0.22%) 0.82932713 6.63% 539,426
56
BATPOOL
0.05% 441 0(0%) 1.70966185 13.68% 497,074
57
Rawpool
0.04% 371 0(0%) 0.37356133 5.98% 699,330
58
PEGA Pool
0.04% 350 0(0%) 0.29405760 4.70% 802,588
59
CoinLab
0.04% 346 1(0.29%) 0.09518148 0.23% 261,624
60
TripleMining
0.04% 333 2(0.60%) 0.17423867 0.45% 352,799
61
GoGreenLight
0.04% 333 13(3.90%) 0.93140311 7.45% 480,116
62
SecPool
0.04% 325 3(0.92%) 0.31268869 8.96% 859,577
63
SecretSuperstar
0.04% 303 1(0.33%) 0.14331202 1.15% 560,885
64
Tangpool
0.03% 297 7(2.36%) 0.10826085 0.43% 350,182
65
BTC Nuggets
0.03% 293 0(0%) 0.09483165 0.38% 363,548
66
tigerpool.net
0.03% 285 0(0%) 0.23345144 1.87% 582,828
67
Solo CK
0.03% 275 0(0%) 0.37022538 1.91% 858,978
68
KuCoinPool
0.03% 272 2(0.74%) 0.16390648 2.62% 802,899
69
OKKONG
0.03% 239 2(0.84%) 0.55957949 8.95% 735,604
70
Yourbtc.net
0.03% 226 0(0%) 0.81353261 1.63% 163,880
71
shawnp0wers
0.02% 197 0(0%) 1.18825434 9.51% 481,309
72
1M1X
0.02% 188 0(0%) 0.95247617 7.62% 589,876
73
Sigmapool.com
0.02% 175 0(0%) 0.51933510 8.31% 721,918
74
Terra Pool
0.02% 164 0(0%) 0.08792853 1.41% 745,046
75
ConnectBTC
0.02% 153 0(0%) 1.38322375 11.07% 544,168
76
BitcoinRussia
0.02% 133 0(0%) 0.88949196 7.12% 574,399
77
EXX&BW
0.01% 116 0(0%) 1.17382174 9.39% 459,499
78
digitalX Mintsy
0.01% 116 0(0%) 0.12113627 0.48% 368,065
79
BitcoinIndia
0.01% 114 0(0%) 1.62893239 13.03% 524,397
80
Waterhole
0.01% 113 1(0.88%) 1.70756847 13.66% 499,822
81
NMCbit
0.01% 105 0(0%) 0.07715921 0.15% 204,615
82
TATMAS Pool
0.01% 99 0(0%) 0.71429911 11.43% 662,197
83
MiningCity
0.01% 92 0(0%) 0.52571637 5.91% 654,383
84
CKPool
0.01% 86 0(0%) 0.35122796 2.81% 626,205
85
Mt Red
0.01% 77 0(0%) 0.35081238 1.40% 221,923
86
AAO Pool
0.01% 76 1(1.32%) 0.74244722 11.88% 673,576
87
ArkPool
0.01% 61 0(0%) 0.52975797 8.48% 708,150
88
Helix
0.01% 54 0(0%) 0.24504145 1.96% 524,124
89
8baochi
0.01% 51 0(0%) 0.10796036 0.43% 370,013
90
ST Mining Corp
0.01% 48 0(0%) 0.20797058 0.83% 248,087
91
Hummerpool
0.01% 46 1(2.17%) 0.65436275 5.23% 581,902
92
mmpool
0.01% 44 0(0%) 0.31862535 1.50% 767,395
93
PHash.IO
0.01% 44 1(2.27%) 0.99178944 7.93% 464,213
94
WhitePool
0.01% 44 0(0%) 0.66308578 16.67% 859,570
95
simplecoin.us
0.01% 43 0(0%) 0.03994713 0.08% 175,809
96
Eobot
0% 42 0(0%) 1.33873249 9.18% 578,901
97
MiningKings
0% 41 0(0%) 1.48943272 11.92% 493,491
98
BTCDig
0% 33 0(0%) 0.08276389 0.33% 360,408
99
Rawpool.com
0% 29 0(0%) 0.16246033 1.30% 545,839
100
HAOZHUZHU
0% 26 0(0%) 1.19826992 9.59% 460,463
101
transactioncoinmining
0% 24 0(0%) 0.09022668 0.36% 362,055
102
175btc
0% 22 0(0%) 0.20593083 0.82% 261,024
103
Bitsolo
0% 22 1(4.55%) 0.08053494 0.32% 362,064
104
NiceHash
0% 20 0(0%) 0.38029982 1.96% 492,161
105
tiger
0% 20 0(0%) 0.20224837 1.62% 530,130
106
DCEX
0% 18 0(0%) 1.40621512 11.25% 486,572
107
HotPool
0% 17 0(0%) 0.20078278 0.80% 394,367
108
BCMonster
0% 16 0(0%) 0.63649494 3.54% 463,850
109
A-XBT
0% 16 0(0%) 0.18696148 0.75% 384,367
110
Bravo Mining
0% 13 0(0%) 0.30093709 1.36% 434,048
111
haominer
0% 10 0(0%) 0.10243716 0.82% 526,327
112
Bitcoin-Ukraine
0% 10 0(0%) 1.90008192 15.20% 515,711
113
myBTCcoin Pool
0% 10 0(0%) 0.14872805 0.59% 404,016
114
BTCServ
0% 9 0(0%) 0 0% 165,062
115
bcpool.io
0% 8 0(0%) 0.06529632 0.26% 312,207
116
UNOMP
0% 6 0(0%) 0.23724831 0.95% 405,814
117
Huobi
0% 5 0(0%) 0.10397752 0.42% 359,205
118
BTCMP
0% 4 0(0%) 0.18141860 0.73% 381,306
119
Minerium
0% 4 0(0%) 0.85994694 13.76% 710,210
120
DCExploration
0% 3 0(0%) 3.01564061 24.13% 501,772
121
Patels
0% 2 0(0%) 0.24597602 0.98% 413,175
122
OKMINER
0% 2 0(0%) 0.13932680 2.23% 746,885
123
BTC Pool Party
0% 1 0(0%) 0.17917693 0.72% 328,198
124
RigPool
0% 1 0(0%) 0.21503777 1.72% 434,951
125
7pool
0% 1 0(0%) 1.96976098 15.76% 468,529
126
EkanemBTC
0% 1 0(0%) 1.10531149 8.84% 452,344
127
Tricky's BTC Pool
0% 1 0(0%) 0.27071385 1.08% 389,683
128
HashBX
0% 1 0(0%) 2.74469901 21.96% 502,112
129
Nexious
0% 1 0(0%) 0.42452883 1.70% 384,051
130
HASHPOOL
0% 1 0(0%) 0.01064628 0.04% 348,516
this has 130 pools covers 600,000 plus blocks mined.
but right on the top unknown blocks is huge.
you can fuck around and see what you find on this list