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Block #172,740
00000000000007299f90be0032026734ecf906d84a82799b724b33d3ead37b5e
Likely solo-mined
Why this block matters
This block shows very strong signals of solo mining — no shared-pool payout pattern was detected and the confidence score is high.
- No shared-pool signature or coinbase tag detected
- Payout address has never received a block reward before — consistent with solo mining
- Found 4m 24s after the previous solo candidate (#172,739)
Try solo Bitcoin mining
This block is classified as a strong solo candidate. Solo mining is lottery-like — even small miners can participate, but finding a block is statistically rare.
Block Data
Time25 Mar 2012, 02:20 UTCConfirmations793,652Transactions16Size12,846 bytesWeight51,384 WU
Reward
Subsidy + Fees50.00450 BTCFees only0.00450 BTCValue at time$264BTC price$5Mining poolNot identified
Detection
Likely solo-mined
Final scoreBase score75History adj.+10Interval adj.0Pool signatureNone detected
85/100
no pool signature; unknown coinbase pattern; fresh payout address (DB); no reuse 24h; no reuse 7d; low fees (450000 sats); history_adj=+10 (first_time_winner)
Network at mining time
Network hashrateN/A
Against N/A of total network hashrate, the odds of a solo miner winning are extremely low — making this block remarkable.
Detection Signals
No pool signature+40
New address+10
No reuse (7d)+5
No reuse (24h)+5
Address history+10
Final score85/100
Address History
Historical wins0Previous win—Interval since lastFirst win everWins last 30d0
RecurrenceFirst win
IntervalNo prior win
This address has never received a block reward before — consistent with solo mining.
Coinbase Message (raw)
mma+k?7NU747MX~'/P2SH/