A: A 51% attack — rare for Bitcoin but possible for smaller POW chains with low hashrate.
By 2025, the global crypto mining landscape has transformed entirely. The Bitcoin halving in April 2024, the rise of mining ASICs beyond 500 TH/s, and the shift toward renewable energy have redefined what a “good” hashrate means.
| Metric | Value | |--------|-------| | Total hashrate | 820 EH/s (exahashes per second) | | Dominant hardware | ASICs ≥ 400 TH/s | | Average efficiency | 20–25 J/TH | | Mining pool concentration | Foundry USA (30%), Antpool (25%), F2Pool (15%) | | Renewable energy usage | 58% (up from 38% in 2022) |
A: A 51% attack — rare for Bitcoin but possible for smaller POW chains with low hashrate.
By 2025, the global crypto mining landscape has transformed entirely. The Bitcoin halving in April 2024, the rise of mining ASICs beyond 500 TH/s, and the shift toward renewable energy have redefined what a “good” hashrate means. hasratein 2025 hitprime s03 epi 13 wwwmoviesp 2021
| Metric | Value | |--------|-------| | Total hashrate | 820 EH/s (exahashes per second) | | Dominant hardware | ASICs ≥ 400 TH/s | | Average efficiency | 20–25 J/TH | | Mining pool concentration | Foundry USA (30%), Antpool (25%), F2Pool (15%) | | Renewable energy usage | 58% (up from 38% in 2022) | A: A 51% attack — rare for Bitcoin